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ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Printable Version

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RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - GuateGojira - 01-16-2019

(01-16-2019, 08:40 AM)Wolverine Wrote: Probably the truth is somewhere in between, who knows. Its true that Karanth is biologist while Kipling was not, but in same time Karanth should also not place under suspicion and ignore the observations of Keneth Anderson, who was not less experienced than him in the jungle life.

Little question, how many events between tigers and dholes witnessed Mr Anderson?

From the other side, Dr Karanth, Dr Chundawat and others had witnessed more events and in all the cases the tiger dominate. Remember that in these days there are still groups of up to 15 dholes, but the problem is how many are "adults" and how many are large "cubs". I think that Dr Karanth is correct in suspect the event recorded by Mr Anderson.

I do think that a weak/ill tiger/lion can be attacked and maybe killed by packs of dogs, like Mazák stated, but certainly that will not be the norm and modern evidence do not support the old claims.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Shadow - 01-16-2019

(01-16-2019, 09:46 AM)GuateGojira Wrote:
(01-15-2019, 11:43 PM)Shadow Wrote: Does anyone have more information about this case maybe?

http://zeenews.india.com/news/eco-news/pack-of-wild-dogs-attack-and-injure-tiger-at-panna-reserve_877236.html

One case probably cub killed by dholes.

https://timesofindia.indiatimes.com/city/nagpur/Tiger-cub-killed-by-wild-dogs-in-Chanda/articleshow/14512292.cms

First case: Doesn't mention the sex or age of the tiger. In fact, only five dogs attacking a tiger seems very suspiciuos. Could be feral dogs? Maybe, as they don't afraid of any animal and are spread in many places of India in these days. So, inconclusive case of dhole attack.

Second case: Tiger cubs can be killed by many other animals in the forest. This is not evidence of dholes attacking or predating tigers directly.

Again, the videos that you posted shows that the dholes are very nervous and are trying to disctract the tiger or drive it away. Tiger, on the other hand, dominate them, attack them or simply ignore them.

In this you are just speculating, for me dholes sound here more convincing option, than other wild dogs. Dholes are called commonly also wild dogs and red dogs. And even though there is no proof, that dholes would have been killed tigers, it is clear, that they do harass tigers sometimes. That is also mentioned in document, which Rishi linked in dhole thread. So it is not so clear, that tigers dominate dholes in every case, even though they do it of course in most cases, no doubt about it.

We are talking about wild animals and wildlife, there are no absolutes there. Many kind of situations in there and in some occasions even tigers can be in trouble. But I am not starting to claim too much based on newspaper articles. anyway in these articles are mentioned a lot of names and they are quite new ones. So more information could be found out possibly if someone would track down these people and ask.

At this point in this matter no-one here can say something and claim, that it would be 100% sure conclusion (imo). More information would be needed for that, but those articles leave reasonable doubt, that maybe some tigers have even died by dholes. Even though more is needed to be sure to one way or another.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Rishi - 01-16-2019

(01-16-2019, 08:40 AM)Wolverine Wrote: Obviously dholes on that video are trying to irritate the tiger.

So, we already have 2 different videos, showing how small packs of dholes briefly encircle tigers. They stay at distance 5-6 meters from the cat. In the moment the tiger rush towards one of the dholes the dhole run away, than the dholes again encircle the tiger until finally all dogs move away. Probably if the tiger is very sick or very old they could dare to attack him but this are only speculations. We still didn't have any video from India showing real attack or bites as we have with spotted hyenas and lions in Africa. 

Could be observed two extreme opossite opinions about dholes- Kipling and Karanth:

1. According Kipling dhole packs are something like supreme killing machine attacking Indian jungles as avalanche and destroing everything on its way, chasing and killing tigers with some suicidal passion to make heroical victory on the giant cat.
2. According famous Indian biologist Ulios Karanth the dholes are just small dogs who never dare to challenge a tiger and are often killed and hunted by tigers. All that old stories about extreme ferosity of the dholes are just legends and nothing more.
Probably the truth is somewhere in between, who knows. Its true that Karanth is biologist while Kipling was not, but in same time Karanth should also not place under suspicion and ignore the observations of Keneth Anderson, who was not less experienced than him in the jungle life.
(01-16-2019, 09:55 AM)GuateGojira Wrote: Little question, how many events between tigers and dholes witnessed Mr Anderson?

From the other side, Dr Karanth, Dr Chundawat and others had witnessed more events and in all the cases the tiger dominate. Remember that in these days there are still groups of up to 15 dholes, but the problem is how many are "adults" and how many are large "cubs". I think that Dr Karanth is correct in suspect the event recorded by Mr Anderson.

I do think that a weak/ill tiger/lion can be attacked and maybe killed by packs of dogs, like Mazák stated, but certainly that will not be the norm and modern evidence do not support the old claims.

One big factor!

These are all very very small packs.
Large packs of upto 40 dholes are near non-existent nowadays. Karanth & Chundawat are from an era when India's wildlife was going through its darkest times. Dholes were lucky to have escaped being critically endangered themselves!

But it was the consensus amongst most of Indian forest personell & hunters pre-1950, not just Kipling, & still is actually. Kenneth Anderson has written about quite a few encounters between dhole packs and tigers. I've read two, atleast 20 adults in both cases. That's an extraordinary sight today...
But hopefully their packs will reach those sizes someday again. They have less intra-pack dominance conflict, lax social hierarchy compared to wolves & multiple breeding females.

This video had the max number of them, about a dozen only. It's a scene from "The Pack" documentary.
http://www.arkive.org/dhole/cuon-alpinus/video-11b.html

http://www.arkive.org/dhole/cuon-alpinus/video-11b.html
@sanjay just typing the ^link isn't working for some reason! It's just a link to the same post (see the codes for both).


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - sanjay - 01-16-2019

Fixed it Rishi.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Jimmy - 01-16-2019

Could it also be that dholes are in a sort of irreversible stage now a days in some of their realm, for example it could be that once they reach certain size of pack members they could be more vulnerable for tiger attack because they will be more readily get noticed and pack is still small enough (lets say its hard to make 30+ in todays world concerning rether limited food and space) to be vulnerable to tigers. Maybe smaller pack now a days may be making more sense lessening detection and becoming more elusive, scurrying undetected through forest floor, We never know what ecological imbalance may have created  against forming large packs. Barring South India dhole appear in pretty small packs behaving like golden jackals like limiting themselves to a pair or more which would be more successful in quick and sustained attack on smaller prey like barking deer, ghorals etc, killing and eating quickly and then going unnoticed, this I am thinking because I have not seen huge packs like south-india's in South East Asia and Nepal, they may have changed their pack Dynamics a little. I am really beggining to think it is very possible in a jungle environment they live in unlike savannah where this option might not work well. Here is the one and probably only footage from Chitwan






RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Wolverine - 01-16-2019

(01-16-2019, 09:55 AM)GuateGojira Wrote: Little question, how many events between tigers and dholes witnessed Mr Anderson?

From the other side, Dr Karanth, Dr Chundawat and others had witnessed more events and in all the cases the tiger dominate. Remember that in these days there are still groups of up to 15 dholes, but the problem is how many are "adults" and how many are large "cubs". I think that Dr Karanth is correct in suspect the event recorded by Mr Anderson.

I do think that a weak/ill tiger/lion can be attacked and maybe killed by packs of dogs, like Mazák stated, but certainly that will not be the norm and modern evidence do not support the old claims.

The fact that Mr Karanth (and Mr Chundawat) has not witnessed personaly a tiger attacked by dholes doesn't mean that such an events have never happened.  Such a statement from his side will be a sign a high self esteem and a basically ridiculous. In order to make general conclusions about tiger-dhole relations we need to collect all information in the last 2 centuries from hunters, local people and scientists. Blaming Kenneth Anderson, a man who spent his entire life in the the Indian jungles Mr Karanth became himself vulnerable for accusations. While highly talented stories of Anderson will be read even after century, frankly speaking Karanth texts are one of the most boring and clumsy scientific texts I have ever try to read.



Zoological survey of India, tiger injured by dholes in Kanha, 1963

*This image is copyright of its original author



RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Wolverine - 01-16-2019

(01-16-2019, 09:46 AM)GuateGojira Wrote: Again, the videos that you posted shows that the dholes are very nervous and are trying to disctract the tiger or drive it away. Tiger, on the other hand, dominate them, attack them or simply ignore them.

I have hard time to see a "domination" in some of these videos. Yes, dholes are cautious, but they obviously don't afraid of the tiger at all,  they are impudent, cautious and curious altogether.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Shadow - 01-16-2019

(01-16-2019, 08:14 PM)Wolverine Wrote:
(01-16-2019, 09:55 AM)GuateGojira Wrote: Little question, how many events between tigers and dholes witnessed Mr Anderson?

From the other side, Dr Karanth, Dr Chundawat and others had witnessed more events and in all the cases the tiger dominate. Remember that in these days there are still groups of up to 15 dholes, but the problem is how many are "adults" and how many are large "cubs". I think that Dr Karanth is correct in suspect the event recorded by Mr Anderson.

I do think that a weak/ill tiger/lion can be attacked and maybe killed by packs of dogs, like Mazák stated, but certainly that will not be the norm and modern evidence do not support the old claims.

The fact that Mr Karanth (and Mr Chundawat) has not witnessed personaly a tiger attacked by dholes doesn't mean that such an events have never happened.  Such a statement from his side will be a sign a high self esteem and a basically ridiculous. In order to make general conclusions about tiger-dhole relations we need to collect all information in the last 2 centuries from hunters, local people and scientists. Blaming Kenneth Anderson, a man who spent his entire life in the the Indian jungles Mr Karanth became himself vulnerable for accusations. While highly talented stories of Anderson will be read even after century, frankly speaking Karanth texts are one of the most boring and clumsy scientific texts I have ever tried to red.



Zoological survey of India, tiger injured by dholes in Kanha, 1963

*This image is copyright of its original author

This is an interesting topic. I am myself very cautious about Corbett and Anderson as sources, which is no secret to people who have read my postings. Then again this interaction between dholes and tigers is not based on only their observations. Tigers are on the very top of food chain in India and majestic animal. Of course it is interesting to know more if there is species which can, even though not often, but even sometimes to challenge it, not only irritate. I remember, that once when I was reading about tigers, there was mentioned that in one region in India dhole numbers had rised up a lot and researchers noticed, that in that area were less tigers than usually. It can take time to find that document, but if someone remembers reading same, maybe could find that faster?

I don´t remember now so specifically where and what time, because I was searching other information at that time, but I remember reading it and thinking briefly, that it looks odd and are dholes really that kind of pain in the a** for tigers? Then I forgot that until now :)


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Shadow - 01-16-2019

(01-16-2019, 04:00 PM)Jimmy Wrote: Could it also be that dholes are in a sort of irreversible stage now a days in some of their realm, for example it could be that once they reach certain size of pack members they could be more vulnerable for tiger attack because they will be more readily get noticed and pack is still small enough (lets say its hard to make 30+ in todays world concerning rether limited food and space) to be vulnerable to tigers. Maybe smaller pack now a days may be making more sense lessening detection and becoming more elusive, scurrying undetected through forest floor, We never know what ecological imbalance may have created  against forming large packs. Barring South India dhole appear in pretty small packs behaving like golden jackals like limiting themselves to a pair or more which would be more successful in quick and sustained attack on smaller prey like barking deer, ghorals etc, killing and eating quickly and then going unnoticed, this I am thinking because I have not seen huge packs like south-india's in South East Asia and Nepal, they may have changed their pack Dynamics a little. I am really beggining to think it is very possible in a jungle environment they live in unlike savannah where this option might not work well. Here is the one and probably only footage from Chitwan




Looks like also, that these dholes might have been feeling disturbed by people there. Watch that documentary in dhole thread. There is said, that dholes stop kill if seeing humans nearby. I am not sure if that was local phenomenon in that area or more common behavior. It was based to it, that people have often followed dholes and taken prey animal from them after kill, which led to situation, that dholes learned to let it be if noticing people. In this video one dhole is looking many times straight to camera and not participating to hunt even when prey is in water. Look what happens when 2 dholes run towards water and immediately after it. Other looks at camera and chase ends there for it.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Jimmy - 01-16-2019

(01-16-2019, 08:52 PM)Shadow Wrote:
(01-16-2019, 04:00 PM)Jimmy Wrote: Could it also be that dholes are in a sort of irreversible stage now a days in some of their realm, for example it could be that once they reach certain size of pack members they could be more vulnerable for tiger attack because they will be more readily get noticed and pack is still small enough (lets say its hard to make 30+ in todays world concerning rether limited food and space) to be vulnerable to tigers. Maybe smaller pack now a days may be making more sense lessening detection and becoming more elusive, scurrying undetected through forest floor, We never know what ecological imbalance may have created  against forming large packs. Barring South India dhole appear in pretty small packs behaving like golden jackals like limiting themselves to a pair or more which would be more successful in quick and sustained attack on smaller prey like barking deer, ghorals etc, killing and eating quickly and then going unnoticed, this I am thinking because I have not seen huge packs like south-india's in South East Asia and Nepal, they may have changed their pack Dynamics a little. I am really beggining to think it is very possible in a jungle environment they live in unlike savannah where this option might not work well. Here is the one and probably only footage from Chitwan




Looks like also, that these dholes might have been feeling disturbed by people there. Watch that documentary in dhole thread. There is said, that dholes stop kill if seeing humans nearby. I am not sure if that was local phenomenon in that area or more common behavior. It was based to it, that people have often followed dholes and taken prey animal from them after kill, which leaded to situation, that dholes have learned to let it be if noticing people. In this video one dhole is looking many times straigth to camera and not participating to hunt even when prey is in water. Look what happens when 2 dholes run towards water and immedieately after it. Other looks at camera and chase ends there for it.

Yeah here they were clearly disturbed by people on boat, they still wanted to attack but the boat made them suspicious! like I said before, large packs like 30 or 40 will make them directly compete and confront with tiger,  pack this size will have to occupy prime areas densly populated by herbivores, kill often, make loud noise during the hunt, therefore are readily visible, heard or detectable and of course they have to counter this by being bold enough to defend, attack or at least threaten other predators- tigers on a regular basis, in this scenario it looks like there can be just one dominant predator either dholes or tiger in that particular forest patch since the frequency of encounter thus risk between two species is high and it leads to displacement of one. Intermediate packs like 8-12 individuals are neither best at becoming elusive nor fully aggressive with tiger, they have to occupy prime areas to sustain the pack members but will have to abandon their space or kill to tigers, they have to watch their backs constantly, looks like the worst option to me. So the only option now is to  remain in small packs say of 5-6 individuals, scare off leopards or bears but remain elusive enough to avoid detection by tigers, the pack this small may venture into less productive areas that corresponds to small prey and therefore less tiger activity and sustain easily by hunting small prey like barking deer and ghorals. Most dhole pack now I see enjoy the last option cuz even if they want totincrease the pack size they have to first go through intermidiate stage which will be the worst option and real test as i have shown, of course it is just my observation but I think that is what is happening in majority of places.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Pckts - 01-16-2019

(01-16-2019, 08:40 PM)Wolverine Wrote:
(01-16-2019, 09:46 AM)GuateGojira Wrote: Again, the videos that you posted shows that the dholes are very nervous and are trying to disctract the tiger or drive it away. Tiger, on the other hand, dominate them, attack them or simply ignore them.

I have hard time to see a "domination" in some of these videos. Yes, dholes are cautious, but they obviously don't afraid of the tiger at all,  they are impudent, cautious and curious altogether.

You don't see a hierarchy there?
The Tiger walks calmly and rests in the water while the Dholes are nervous and make alarm calls much like any other Prey. 

I have little doubt that a large pack could drive off a Tiger, I have major doubts that a pack of any size could kill a healthy mature Male, it doesn't happen in Africa and I assume it won't happen in India as well.
I also have similar doubts in regards to a Tigress but I have seen both Hyena and AWD's be far more aggressive with Females than with Males so they obviously know the difference between the two and the threats they create.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - paul cooper - 01-17-2019

(01-16-2019, 08:14 PM)Wolverine Wrote:
(01-16-2019, 09:55 AM)GuateGojira Wrote: Little question, how many events between tigers and dholes witnessed Mr Anderson?

From the other side, Dr Karanth, Dr Chundawat and others had witnessed more events and in all the cases the tiger dominate. Remember that in these days there are still groups of up to 15 dholes, but the problem is how many are "adults" and how many are large "cubs". I think that Dr Karanth is correct in suspect the event recorded by Mr Anderson.

I do think that a weak/ill tiger/lion can be attacked and maybe killed by packs of dogs, like Mazák stated, but certainly that will not be the norm and modern evidence do not support the old claims.

The fact that Mr Karanth (and Mr Chundawat) has not witnessed personaly a tiger attacked by dholes doesn't mean that such an events have never happened.  Such a statement from his side will be a sign a high self esteem and a basically ridiculous. In order to make general conclusions about tiger-dhole relations we need to collect all information in the last 2 centuries from hunters, local people and scientists. Blaming Kenneth Anderson, a man who spent his entire life in the the Indian jungles Mr Karanth became himself vulnerable for accusations. While highly talented stories of Anderson will be read even after century, frankly speaking Karanth texts are one of the most boring and clumsy scientific texts I have ever try to read.



Zoological survey of India, tiger injured by dholes in Kanha, 1963

*This image is copyright of its original author

I think you just made yourself vulnerable for accusations. Karanth, a guy who has been in the field for decades and observed the interactions between the animals, dholes never threatened tigers. And that is all there is to it. Learn what science is. Dholes most likely only attack injured or juvenile tigers.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - peter - 01-17-2019

(01-17-2019, 03:09 AM)paul cooper Wrote:
(01-16-2019, 08:14 PM)Wolverine Wrote:
(01-16-2019, 09:55 AM)GuateGojira Wrote: Little question, how many events between tigers and dholes witnessed Mr Anderson?

From the other side, Dr Karanth, Dr Chundawat and others had witnessed more events and in all the cases the tiger dominate. Remember that in these days there are still groups of up to 15 dholes, but the problem is how many are "adults" and how many are large "cubs". I think that Dr Karanth is correct in suspect the event recorded by Mr Anderson.

I do think that a weak/ill tiger/lion can be attacked and maybe killed by packs of dogs, like Mazák stated, but certainly that will not be the norm and modern evidence do not support the old claims.

The fact that Mr Karanth (and Mr Chundawat) has not witnessed personaly a tiger attacked by dholes doesn't mean that such an events have never happened.  Such a statement from his side will be a sign a high self esteem and a basically ridiculous. In order to make general conclusions about tiger-dhole relations we need to collect all information in the last 2 centuries from hunters, local people and scientists. Blaming Kenneth Anderson, a man who spent his entire life in the the Indian jungles Mr Karanth became himself vulnerable for accusations. While highly talented stories of Anderson will be read even after century, frankly speaking Karanth texts are one of the most boring and clumsy scientific texts I have ever try to read.



Zoological survey of India, tiger injured by dholes in Kanha, 1963

*This image is copyright of its original author

I think you just made yourself vulnerable for accusations. Karanth, a guy who has been in the field for decades and observed the interactions between the animals, dholes never threatened tigers. And that is all there is to it. Learn what science is. Dholes most likely only attack injured or juvenile tigers.

Wrong. The goal of a debate is to explore the topic in every possible way. Exploration means nothing can be dismissed up front or out of hand. 

Is exploration needed regarding tigers and dholes? Most definitely. There are plenty of observations on interactions between dholes and tigers, but I never saw something even close to a good explanation. Interspecific relations between tigers and dholes are not well understood.

We could, as some did, disqualify some sources and opt for one only, but the best way to get to knowledge is to collect as much information as possible and try to find an explanation for what we see. Here's another attempt. 

TIGERS AND DHOLES

a - Sources of information 

I started with Wikipedia: https://en.wikipedia.org/wiki/Dhole

Not a great source most of the time, but what I read about dholes was interesting. Apparently, dholes have been around for quite some time. In the Late Pleistocene, they were almost everywhere. Here's a comparison between the Javan dhole and Pleistocene dholes:


*This image is copyright of its original author


Over time, dholes retreated to the eastern part of Asia. According to Velter (see my last post in this thread), 'red wolves' were well-known in the Russian Far East less than a century ago. Today, the Ussuri dhole seems to be gone:


*This image is copyright of its original author


Not too far away (north- and southwestern China and further west), however, dholes are still present. Numberwise, the situation is not good. Like many other species, dholes are walking the edge.

As to the name. In many regions, they were known as 'mad dogs'. This qualification most probably refers to the way they behaved in the recent past. Dholes are very good hunters. The skill and tenacity displayed during a hunt often surprised observers. They were so good at it, that many thought they would destroy everything in reach. For this reason, bounties were paid. Another likely reason many perceived them as 'mad' was the way they opposed large and dangerous competitors like leopards, tigers and bears. Anderson saw them corner sloth bears, leopards and hyenas and chase tigers in southern India less than a century ago. 
       
Although they had a bad reputation everywhere, dholes, as far as I know, never posed a threat to domestic animals and humans. Wolves still kill people in the southwestern part of Asia in particular, but dholes seem to have a clean sheet in this respect. People still fear wolves. For this reason, information about there whereabouts was and is considered useful. Dholes, on the other hand, posed no threat. The result is poor knowledge.   

Dholes are not the only canids poorly understood. In Surinam, French Guyana and the northern part of Brazil, Indians told me about bushdogs. Today, there is some info on them, but it still isn't much. Same for wild dogs in Java and Sumatra. I talked to people who spent most of their life in Sumatra. All of them told me about the wild dogs, but it was difficult to find good information about them. The Indian dhole is more visible, but so far biologists more or less missed them. 

Most canids are very visible. The result is an impressive series of books and articles. Those who make their home in the forest, however, are not well-known. Same for dholes living in elevated regions in central parts of Asia. These mountain dogs are very elusive as well. The result is no information.  

b - Behavior 

One of the few who knows a bit about dholes in India is Ullas Karanth. In his experience, dholes today live in smallish packs. Although some of us posted visual evidence of exceptions, small seems to be the general rule today. Dholes still are good hunters moving from one place to another. The problem is competition. In Nepal and India, they face tigers, leopards, Himalayan black bears, hyenas, wolves, jackals, sloth bears, wild boars, different species of small cats and muggers. Humans no doubt also displace them at times. 

At 30-45 pounds, dholes are too small to defend their kill from other predators. Furthermore, they are hunted by larger predators. In order to respond to both threats, dholes decided for cooperation and attitude:

https://www.jstor.org/stable/24097214?seq=1#page_scan_tab_contents

An average family group (2-10 individuals) is more than capable to keep most competitors at bay. In spite of their small size, they are also capable to engage quite large competitors. The big cat problem, however, hasn't been quite solved. Although they tree the occasional leopard and even tiger cubs, dholes are still hunted and displaced by adult tigers. Doesn't happen often, but it happens.

Today, biologists say large carnivores dominate smaller carnivores, but a century ago dholes had a different opinion on the matter. Packs were larger and there is no doubt they confronted big cats at times. 

But surely these stories about packs of 30 or more dholes are a result of fantasy? I mean, these hunting writers like Anderson would do just about anything to sell a few more copies, wouldn't they? Furthermore, how many examples of exquisit story-telling have we seen in the past?

I agree an opinion is the easiest and quickest way to get rid of stories, but the question is if it would be the correct decision. Let's just assume for one minute that at least some of these stories about dholes and tigers could have been true. If so, it would mean that animals would be able to change their behavior over time. Any examples? 

c - Boomgaard on animals changing their behavior over time

Peter Boomgaard wrote 'Frontier of Fear - Tigers and People in the Malay World, 1600-1950'. It was published in 2001. Boomgaard took ten years to read all the old official documents on tiger attacks in Java and Sumatra. During these years, he felt completely isolated. In the end, he produced something of great value. His achievement will not be repeated, as the sources he used have been dispersed. Besides, who would be prepared to read old documents for ten years?

When reading, he noticed that tigers in Indonesia seemed to have changed their behavior over time. Tigers are intelligent animals, but so are all others and carnivores in particular. Interesting read:


*This image is copyright of its original author


*This image is copyright of its original author


d - Interactions between tigers and dholes

Before the internet, we had books and the occasional documentary. Today, we have the internet and You Tube. I've seen quite a few videos featuring tigers and dholes. What did I see?

Dholes are way smaller than tigers. Tigers not only displace them, but also kill them every now and then. Same for leopards. Tigers, leopards and dholes are neighbours. No matter where they go, wild dogs will face tigers and leopards just about everywhere in India. Chances are they will treat them in the same way as in their former neighbourhood. How to respond? 

Wolves operate in packs in winter, but not in spring and summer. The result is that wolves have been killed by tigers in the Russian far East. Dholes, however, live in packs all the time. Every pack has sentinels. When an enemy is spotted, the pack is informed. The pack doesn't run, but approaches the enemy. This is needed to get information. During the inquest, individuals approach the cat from all angles to see in what way he responds. When they're sure about the intentions of the cat, they leave him. One or two dholes, however, will keep an eye on the cat.

Every time the cat is close, the dogs will use the same strategy. Every cat responds in a different way to pressure. One individual will respond in an aggressive way, whereas another won't respond at all. 

My guess is dholes are more wary of a tigress with cubs than of an adult male. Adult male tigers have large territories and hunt large animals. They're not interested in dholes. A tigress, however, has a much smaller territory. When she has cubs, the territory will be even smaller. If she can kill a wild dog or displace a pack, she will. If she's healthy and aggressive, the dogs might move out for a few months. If the tigress is struggling, the pack will keep an eye on her. Chances are they will harrass her and even visit her den. All this to convince the tigress to move out of the district. In a way, it's an all-or-nothing attitude.

Here's a photograph of a tigress and two dholes:


*This image is copyright of its original author


When a young adult male tiger or tigress settles in a district occupied by dholes, the dogs will visit the newcomer. When it's a tigress, they will try to convince her to move elsewhere. If the tigress is inexperienced or insecure, they will harrass her whenever possible. Tigers don't like to be seen. If they know they're monitored, they often leave.

In lean times, there could be competition for food. Dholes might decide to cooperate with other packs in order to be able to hunt larger animals. Today, most reserves are well-stocked, but a century ago things could have been very different. In southern India, a severe drought might have resulted in starvation and extreme behavior. As social hunters, dholes no doubt suffer more than solitary hunters. In these conditions, they could have decided to defend their kill no matter what or displace leopards and tigers. If they succeeded, chances are they would have tried again. Learned behavior. 

When wolves or dholes try to defend their kill or try to displace large opponents, they usually use probing attacks. In some conditions, however, they will not hesitate to fight a bear or a large cat. 

I recently saw a documentary about a wolf pack in northeastern Italy on the BBC. In late autumn, close to starvation, they killed a large deer. A big male brown bear appropiated the deer, but he wasn't allowed to feed. The alpha male wolf in particular was very aggressive. He took risks, was injured and died some days later. But the bear left after the incident. Self sacrifice? No. Hunger and despair.

Some of you now doubt saw 'Dynasties', also BBC. One episode is about lions. Two young males were close to starting their own business. When out on his own, one of them entered unknown territory. He was met by the clan. Although he was massive, there were too many. When the end seemed near, his mate suddenly appeared out of nowhere. It was a close call.

Could a pack of dholes injure, displace or kill an adult tiger? Today, it's very unlikely. The packs are too small and tigers are bigger than a century ago. During a serious encounter, dholes would be crippled or killed outright. 

In different conditions, behavior can change. When a pack close to starvation has to choose between another energy-consuming long hunt, migration or a confrontation, They could opt for a confrontation.

Big cats are very suited for a one-on-one. They have the weapons, the attitude, the experience and, last but not least, can focus like no other animal. The also know how to attack and get the upper hand. Defence, however, is a different story. When attacked by multiple smaller opponents, they would struggle. A wolf or African wild dog will never attack a big cat, but hyenas and dholes have a different attitude. When they have an advantage, anything is possible.

Adult hyenas have a crippling bite, but dholes don't. For this reason, it would take a long time to convince a tiger. Adult male tigers most probably are out of the question, but I'm not so sure about a subadult or a tigress. If a pack has over 20 members, anything is possible. 

e - Kenneth Anderson

Kenneth Anderson wrote dholes operated in large packs up to 30 individuals in the dry season. He saw 6 dholes driving a tigress in front of his eyes. During a brief fight, one dhole was killed. When she heard the main pack closing in, she ran again. Anderson saw the pack. He counted 23 individuals. The tigress was later killed. Including the one killed in front of Anderson's eyes, 6 dholes lost their life in the battle:    


*This image is copyright of its original author


*This image is copyright of its original author


Here's one more on tigers and dholes. It seems dholes feared nothing in those days. In the Madras Presidency in particular, they had quite a reputation. I never found anything that compares in other parts of India:


*This image is copyright of its original author


*This image is copyright of its original author


Today, Ullas Karanth no doubt is right. This, however, doesn't mean that Kenneth Anderson was wrong. 

In his day, things were very different. Based on what I read, Í think India in 1860, 1900 and even 1930 was completely different from today. In southern India, in the first decade of the 20th century, Wiele walked for weeks without seeing a soul. Tigers at times reached an age unheard of today.

When the British started cultivating wild places, a war erupted between the newcomers and wild animals. Half a century after it had started, not a few hunters still wondered who would come out on top. After the British left India, a period of destruction followed. Tigers barely survived, but other species did not.

Today is the day of humans. Although the human population well exceeded one billion, India still has wild country. Forests are recovering and the number of tiger reserves is still growing. Quite an achievement, I think.

Animals adapted to the new situation. I'm not saying all of them know how to count to ten these days, but they're no doubt different from their relatives a century and a half ago. Different conditions will result in different behavior. But it could change. Today, reserves are smallish and scattered. In a decade or two, however, India could have a few large reserves. My guess is that animals will adapt once again.      

f - Two pictures and one link to a study in northern Laos

India - Animals hunted by dholes enter a river. Not seldom, dholes drown them: 


*This image is copyright of its original author


India - dholes attacking a wild boar:


*This image is copyright of its original author


Here's the link to the study carried out in Laos. Interesting:

https://academic.oup.com/jmammal/article/93/3/627/834260


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Greatearth - 01-18-2019

(01-06-2019, 10:32 AM)Wolverine Wrote:
(01-06-2019, 10:10 AM)Greatearth Wrote:
(01-06-2019, 09:49 AM)Wolverine Wrote: I remember that as a child red in Red book of Soviet Union (from 1980's or 1970's) that even in pre-industrial age, before human colonization of RFE Amur tiger's population was assessed at around 700-900, there were never more than 700-900 wild tigers in what is today Russian Ussuriland. Amur tigers have never been numerous. 

That's way we have to understand that there is only one true Kingdom of Tiger in this planet and this is INDIA. Tropical ecosystems are much more fertile than northern ecosystems, density of tropical tigers is 15-20 larger than dencity of Siberian tigers. In one small Kaziranga NP on territory of 430 sq.km. live 90 tigers while in gigantic Bikin NP with territory of 11 600 sq. km.  live only 40-50 tigers. 
Every square feet of Indian jungle is teeming with life, every square feet of Indian jungle is a diamond! @Rishi

Really? So Siberian tigers were always small numbers in Russia? 700-900 seems to be too small. Wouldn't be just in Ussuriland? How about other states in Russia? Moreover, places like Manchuria? I think Manchuria was once hold the highest populations of the Siberian tigers. Plus, many people also hunts their food like deer a lot in 20th century. Korea had a high density of tigers compared to its size. 

I was always wondered that why tiger population was high in India even though they were exceptionally hunted just like in other Asia. It maybe different reasons. I don't know places like other South East Asia (India is also much larger than other SE Asia country). As for biodiversity, Indochina has much higher biodiversity than India. About population of large mammals seem to be different. However, I am curious why prey density in South East Asia is smaller than India.

China once had the Siberian tiger, Caspian tiger, South China tiger, Indochinese tiger, and Bengal tiger. China was also experienced different ecosystems throughout the times due to human impacts throughout each dynasties.
I am not sure how many tigers were in mainland China 100~150 years ago. I believe that Kingdom of Tiger was for both China and India, I would put more hand on China though. Difference is that chinese lost that title by themselves.

These numbers (700-900) are only for Outer (Russian) Mandzuria and do not include numbers in Inner (Chinese) Mandzuria which is twice the size of the Russian part. Soviet scientists didn't care about China of cource when they did their assesments.

Why the density of tigers is higher in India than in South East Asia if they both are tropical ecosystems? Good question. Its the same question as why the human population in India is so gigantic and much much  larger than population of South East Asia? A land which can feed much more people can also feed much more tigers. They both have high tempeartures and high humidity ideal for lush vegetation. The answer is: SOIL. The alluvial soils of India and China are the most fertile soils in the planet. In India you have ideal combination: high temperatures + humidity + fertile soils + enough grass between trees for feeding of high number of herbivores. So you have astronomical dencity of tigers and other big predators.

India has a high biodiversity. However, biodiversity of India is lower than biodiversity of each countries in South East Asia if it is considering as the same size.

I don't know how/why soil has to do with population growth. India has so many people that are not receiving proper education. No education means people are generally having more kids just like people in Africa, Central America, and South America. China has larger population than India even though it is not tropical ecosystems. I think it is combination of multiple reasons. Hindu religion probably helped many animals to saved unlike many South East Asia and China. Tropical rainforest of South East Asia was also could be reason while India has many different types of ecosystem like forest, rainforest, grassland, etc. Poaching problems are also worse in South East Asia. Sadly, all problems like snare are killing tremendous large mammals in Indochina Sad
One of the great biologist/conservationist, Dr. Kamler working to save Indochinese leopard, told me that 95% of wildlife is almost disappeared in Indochina. It's all due to poverty, influence on primitive chinese culture, and low education. I don't know what NGO in the world are trying to save the wildlife in Asia sometimes instead of whining in media and internet. India is a little better since government is trying to save their wildlife even though they also have many corruption.


RE: ON THE EDGE OF EXTINCTION - A - THE TIGER (Panthera tigris) - Greatearth - 01-18-2019

About tiger and dhole interaction. I think that tiger is defeating dhole pack most of times.
Just look male grizzly bear is fighting against wolf pack in the USA and male lions are defending its pride against hyena pack in the Africa. Why would powerful animal like tiger, which is more powerful/stronger than lion, would defeated by dhole pack? Dhole is seems to be more dangerous when they are with pack. Still, it would be useless if it is prime powerful male tigers.  Why would grey wolf is heading extinct where tiger population is rising in the Russian Far East? Howeve,r any situations can happen, I am sure dhole pack can kill tigers if entire dholes fight against tiger to the death. Like this one guy in Tanzania killed leopard without weapon when leopard attacked him fist (I heard this 2~3 months ago). Is it common to see man is defeating leopard with his two hands? 95% leopard will easily crush the adult man.
In general, tiger and dhole pack would leave each other alone. It's the same for other animals like bear and crocodile as well.