Analysis of skulls and mandibles of the fossil Beringian lion demonstrate that the small lion that inhabited Yakutia (Russia), Alaska (USA), and the Yukon Territory (Canada) is a new subspecies described here as Pu~ltl lcra spelncu z~erc.sl7c-llugirri n. subsp. It differs from the European cave lion P. spelacu (terra typica: Gailenreutl~ Cave, Germany, Late Pleistocene) by its smaller size and ...

This paper investigates the extent of tiger (Panthera tigris) vocal individuality through both qualitative and quantitative approaches using long distance roars from six individual tigers at Omaha's Henry Doorly Zoo in Omaha, NE. The framework for comparison across individuals includes statistical and discriminant function analysis across whole vocalization measures and statistical pattern clas...

Captive adult male jaguars (Panthera onca) from two locations in southeast Brazil were studied to evaluate the effects of season on endocrine and testicular function. For assessment of testicular steroidogenic activity, androgen metabolite concentrations were measured in fecal samples collected one to three times per week over 14 ( n=14 ), 9 ( n=1 ) or 7 months ( n=1 ). To assess seasonality, d...

Bu çal??mada; 2017 ve 2019 tarihleri aras?nda Pülümür Nehri'ndeki Salmo trutta macrostigma (Dumeril, 1858), Cyprinion macrostomum Heckel, 1843 Oxynoemacheilus tigris (Heckel, 1843)’in boy-a??rl?k ili?kileri ara?t?r?lm??t?r. Total boy a??rl?klar S. t. için 14,4-36,3 cm 45,2-602 g, C. 7,8-14,0 4,9-30,0 O. 4,3-8,6 0,7-5,1 g de?i?im göstermi?tir. ?ncelenen türlerin ili?kisi; W = 0,0093TL3,0655 (R² ...

Mujib and Haidan rivers were sampled in July 2011 to identify fish populations in the riverine system, and to investigate the impact caused by the existence of two dams. Fishes were sampled by electofishing gear through 14 sampling points distributed along the two rivers. The Mujib Dam lake was sampled by gillnets. A total of 2,854 fish specimen were caught during the study of which most consis...