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2.898  Articles
1 of 291 pages  |  10  records  |  more records»
Research Institute for Fish Breeding has produced transgenic African catfish (Clarias gariepinus) containing stripped catfish growth hormone gene (PccBA-PhGH) with growth 19.86% faster than that of non-transgenic fish. This fish has high potential to be r... see more

The presence of a predator may have direct and indirect effects on the behavior of the prey. Although altered behavior may help prey avoid predators, it also can have a potential impact on critical activities such as foraging. Predator-prey interactions a... see more

The main purpose of this study is to verify or refute the famous existing theory that the eyespots found on the wings of various insects are a kind of imitation which triggers birds, the predator of insects, to have a sense of avoidance by making them rec... see more

In order to supplement the available information for the eco-hydraulic approach to designing fish passages, taking into account the taxonomic, dimensional structure, as well as taking into account the presence of predatory fish in the stream, the distribu... see more

Predation is considered a primary limiting factor of woodland caribou (Rangifer tarandus caribou) populations across North America. Caribou are especially vulnerable to predation during their first few weeks of life and have evolved space-use strategies t... see more

To prevent further range recession, habitat features essential to the life-history requisites of woodland caribou (Rangifer tarandus caribou) such as calving and nursery sites need to be protected for the persistence of the species. Woodland caribou may m... see more

We address the question of how human activities and infrastructure influence reindeer/caribou’s (Rangifer tarandus) behaviour and habitat use and review studies based on current methodologies. Anthropogenic activities have a direct affect on Rangifer beha... see more

Predation, especially wolf (Canis lupus) predation, limits many North American caribou (Rangifer tarandus) populations below the density that food resources could sustain. The impact of predation depends on the parameters for the functional and numerical ... see more


1 of 291 pages  |  10  records  |  more records»