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

[Greatearth]

(05-31-2019, 11:01 AM)Kingtheropod Wrote: Greetings everyone, I have finally completed my list of all scientific and historical records for wild Bengal tigers.

The following list includes weights from various sources collected across the internet. This list includes random weights from books, and averages from historical hunters and scientists collected in the field.

The following is the most recent table made by Guategoijra regarding the weights of Bengal tigers from scientific records, and other subspecies. 

 

*This image is copyright of its original author

The information from me is very similar to his table (see post #279). I have posted this on wildfact (below). The average that I came to was 219 kg (n=29) which is almost identical to his (221 kg, n=21). 

https://wildfact.com/forum/topic-modern-...rs?page=19

Regarding historical records, these are all the reliable historical records I have come to find from random sources. *Note all cats above 300 kg were excluded, and cats below 150 kg also were excluded and automatically considered subadults unless otherwise stated.

Tiger No. Total length Weight in kg (and lb). Reference


1 , 292 202.7 (447) ,Baker, 1891 (adjusted)


2 , – 236.2 (520.8) ,Brown, 1893


3 , - 203 (448) ,Lockyer, 1876


4, – 158.5 (349.5) ,Sanderson, 1879


5, – 161 (355) ,Inverarity, 1888


6, 283 172.4 (380) ,Lydekker et al., 1897


7, 267 164 (362) ,Lydekker et al., 1897


8, – 267.6 (590) ,Singh, 1959


9 , 323 222.7 (491) ,Ward, 1907


10 , 306 252.7 (557) ,Ward, 1921


11 , – 275.8 (608) ,Pocock, 1939


12, – 272 (600) ,Singh, 1970


13, 297 188.7 (416) ,Burton, 1915


14, 292 256.3 (565) ,Berg, 1943


15 , 295 227 (500) ,*Burton, 1936


16, – 156 (344) ,Marshall, 1937


17, – 149.7 (330) ,Marshall, 1937


18, 285 213.2 (470) ,Stewart, 1927

19, - 227 (500) , *Alabama Conservation, 1944

20, - 292 (645) , Ward 1922

21, - 217 (478) , Ford News 1923

22, - 225 (496) , Quarterly 1956

23, - 224 (494) , Quarterly 1956

24, - 186.4 (411) , Quarterly 1956

25, - 159 (350) , Wroughton JBNHS (Vol. 22, pp. 29-66) 

26, - 205 (452) , Buckland 1885

27, - 247.2 (545) , Ward JBNHS (Vol. 31, pp. 1-2)

28, - 217.7 (480) , Morris 1923

29, 292 181 (400) , Baker 1891

Average 212.5 kg (468.5 lb), n=29

This is Guategojiras table on the records from Hewett (1938), the average he came to was 202 kg (n=19). However, the average would be 209 kg if 17,18,and 19 were excluded due to them possibly being young.

*This image is copyright of its original author

This is Guategojiras table on the records from Cooch behar (1908). The average for 44 males was 205 kg, which is very similar to Hewett's table above...

*This image is copyright of its original author

*This image is copyright of its original author

This is from Brander average 190.5 kg (n=42)

*This image is copyright of its original author

This table is from Journal of the Bombay Natural History Society, Volume 10

From Hunter 1896. The average is 216 kg (n=6)

*This image is copyright of its original author

There is of course more I can post, but the remaining are already mentioned in Guategoijras old table which I will post below...

https://www.scribd.com/document/55287778...from_embed

Using the data from scientific record posted by Guategojira from the following tables and historical records I posted above all combined together is...

204.5 kg (n=170), using Guategoijras data only.

However, using the extra data I posted from newsreports. The average from my scientific records data plus historical records data was 205 kg (n=178) for Indian tigers.

Excellent information! Thanks a lot!

I am curious how did you get the data though.
I get to know many Asian big cat biologists, rangers, and wildlife photographer past years. Many of them are not wiling to share information on big cats in their countries in Asia due to poaching problems.
My good friend who used to watched Jai's lifetime until the day he disappeared. Despite he knows the forest department in Nagzira and Umred, but he said he only know Jai was 335.28 cm (11 ft) or over that mark. Not just he doesn't know exact length, but he knows nothing about other measurement.
As for past record since from the early-20th century is even more mystery to find size data and morphology. Reply