There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
--- Peter Broekhuijsen ---

  • 1 Vote(s) - 5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Tiger Demographic

Canada Dr Panthera Offline
Pharmacist and biologist
***
#16

@Shardul The half of tigers reside in unprotected area statement is used by Karanth who is quite critical of the census results as you know, it is not an assumption but more of a reasonable concern and he of all people affirmed again that doubling tiger numbers by 2022 is not going to happen.
Poachers will never be discouraged by awareness, education, or anything other than legal consequences, they would annihilate all tigers given half a chance.
The bengal tiger Panthera tigris tigris is classified EN (endangered ) on the IUCN list , a taxon can still be in that category even with 2500 mature individuals if they meet a set of criteria related to :
A_ Decline in population size
B- Shrinking of geographic range
C-Population is less than 2500 mature individuals and some other criteria are met.
D-Population is less 250 mature individuals regardless of any other factors.
E-20% probability of extinction in the wild within 20 years or 100 % in 100 years if current trends continue.
Even in tigers "heaven" in the indian subcontinent the tiger is still endangered.
We can take heart that at least the numbers are rebounding in some areas and it is doing much better than other tiger populations.
3 users Like Dr Panthera's post
Reply

Canada Dr Panthera Offline
Pharmacist and biologist
***
#17

And the best data is provided by Walston et al. 2010 ( including Karanth on data from India )...in 2010 the world has 42 source populations breeding populations of tigers that have more 25 breeding tigresses totalling 2126 tigers out of which 18 populations were in India over 16040 KM2 and numbered 970 tigers (over 18 months of age as their numbers were from the Indian tiger census in 2010 ). Clearly many of these where juveniles or transient adults.
So whether the number of breeding tigers in India is 500,1000, or 2000 it does not matter..all these numbers are abysmally low and ecosystems in a country the size of India with the concentration of large ungulates in several areas it should have many more tigers.
Selous game reserve, a 50,000 km2 protected area for hunting and filming lions in southern Tanzania has 7600 lions ( Riggio 2013) twice the number of wild tigers in the whole world today, yet you see media and government in several Asian countries trumpeting their tiger conservation success!!!
Tigers are in trouble, everywhere, and it is sad when this is ignored and modest increases are celebrated.
3 users Like Dr Panthera's post
Reply






Users browsing this thread:
1 Guest(s)

About Us
Go Social     Subscribe  

Welcome to WILDFACT forum, a website that focuses on sharing the joy that wildlife has on offer. We welcome all wildlife lovers to join us in sharing that joy. As a member you can share your research, knowledge and experience on animals with the community.
wildfact.com is intended to serve as an online resource for wildlife lovers of all skill levels from beginners to professionals and from all fields that belong to wildlife anyhow. Our focus area is wild animals from all over world. Content generated here will help showcase the work of wildlife experts and lovers to the world. We believe by the help of your informative article and content we will succeed to educate the world, how these beautiful animals are important to survival of all man kind.
Many thanks for visiting wildfact.com. We hope you will keep visiting wildfact regularly and will refer other members who have passion for wildlife.

Forum software by © MyBB