We report on the recent growth of upland aspen (Populus tremuloides Michx.) thickets in northwestern Yellowstone National Park, USA following wolf (Canis lupus L.) reintroduction in 1995. We compared aspen growth patterns in an area burned by the 1988 fires to aspen growth patterns in an adjacent unburned area. Elk (Cervus elaphus L.) are the principal ungulates that use this area to meet forag...

inappropriate waste management is considered as an important factor for attracting wild animals to the inhabited area. this leads to food conditioning in some wild species, which changes their feeding behavior and food habits. usually this trend reduces the fear of wild species and leads to conflict between wild species and human. we sampled five landfill sites of villages and small towns in wh...

Captive as well as free-ranging wolves, which are currently recolonizing Germany, may harbor a variety of gastrointestinal parasites. This study investigated endoparasites in captive European gray wolves (Canis lupus lupus) using coproscopical methods. Fecal samples were collected monthly between October 2012 and November 2013 from 18 wolf enclosures in 14 German zoological gardens, representin...

the leopard (panthera pardus) as an adaptable felid widely distributed in varied ecosystems of iran. the golestan natural park is one of the main habitats of leopard in the country. it has divers diet and preying various types of preys such as wild ungulate and livestock. the prey remains’ samples of leopard were collected and preserved using ethanol 96% and whole genomic dna was extracted. the...

Wolves {Canis lupus) are recolonizing much of their former range within the lower 48 states through active recovery (Bangs and Fritts 1996) and natural dispersal (Boyd and Pletscher 1999). Wolf recovery is being touted as one of the great conservation successes of the 20̂ ̂century (Mech 1995; Smith et al. 2003). In addition to being an important single-species conservation success, wolf recovery ...

1. Large body size hinders locomotor performance in ways that may lead to trade-offs in predator foraging ability that limit the net predatory benefit of larger size. For example, size-related improvements in handling prey may come at the expense of pursuing prey and thus negate any enhancement in overall predatory performance due to increasing size. 2. This hypothesis was tested with longitudi...