caviar is one of the valuable and most popular fish products all over the world that are obtained from sturgeons. nowadays, the wild resources of these fishes are diminished, therefore, to meet the demand for the product, farming sturgeons has been considered. the chemical composition and the amino acids profiles of the wild and farmed roe obtained from beluga (huso huso) were compared and the ...

Understanding the factors shaping the dynamics of carnivore-livestock conflicts is vital to facilitate large carnivore conservation in multi-use landscapes. We investigated how the density of their main wild prey, roe deer Capreolus capreolus, modulates individual Eurasian lynx Lynx lynx kill rates on free-ranging domestic sheep Ovis aries across a range of sheep and roe deer densities. Lynx ki...

Over the last decades roe deer (Capreolus capreolus) populations have increased in number and distribution throughout Europe. Such increases have profound impacts on ecosystems, both positive and negative. Therefore monitoring roe deer populations is essential for the appropriate management of this species, in order to achieve a balance between conservation and mitigation of the negative impact...

The paper describes the results of a comparative study of the seasonal and long-term dynamics of the levels of 1 3 7 Cs in roe deer and moose harvested in a relatively small area (100 km ) of central Sweden. Samples of roe deer (N=1084) and moose (N=1922) were collected in 1988-1997 mainly during the hunting seasons. It is shown that the long-term decrease of | 3 7 Cs levels in roe deer and moo...

The main subject dealt with in this symposium is the interaction between hunters, lynx populations and roe deer populations. One chapter is about the change in behavior of the roe deer with the appearance of lynx. Another part examines how to evaluate the effects of lynx on the roe deer population density. It ends with a case study in Germany which shows that a constructive lynx management coul...

ABSTRACT Sarcocystis tissue cysts from the Siberian roe deer (Capreolus pygargus) were studied by light and electron microscopy. Seven out of eight roe deer were infected (85 % ) . Cysts were macroscopically visible measuring 1-4 mm in length and 0.1-0.5 mm in width. They contained typical Sarcocystis merozoites 10.8 fim in length and 2.4 /xm in width. The taxonomic relation of Sarcocystis sibi...

Risk of predation is an evolutionary force that affects behaviors of virtually all animals. In this study, we examined how habitat selection by roe deer was affected by risk of predation by Eurasian lynx - the main predator of roe deer in Scandinavia. Specifically, we compared how habitat selection by roe deer varied (1) before and after lynx re-established in the study area and (2) in relation...

Research on large predator-prey interactions are often limited to the predators' primary prey, with the potential for prey switching in systems with multiple ungulate species rarely investigated. We evaluated wolf (Canis lupus) prey selection at two different spatial scales, i.e., inter- and intra-territorial, using data from 409 ungulate wolf-kills in an expanding wolf population in Scandinavi...

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