نتایج جستجو برای: pheasant phasianus colchicus
تعداد نتایج: 611 فیلتر نتایج به سال:
We know economic and social policy has implications for ecosystems at large, but the consequences for a given geographic area or specific wildlife population are more difficult to conceptualize and communicate. Species distribution models, which extrapolate species-habitat relationships across ecological scales, are capable of predicting population changes in distribution and abundance in respo...
Egg injection studies were performed to confirm a proposed model of relative sensitivity of birds to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). In this model, species are classified as belonging to one of three categories of sensitivity based on amino acid substitutions in the ligand-binding domain of the aryl hydrocarbon receptor. Embryo lethality and relative potencies of 2,3,7,8-tetrachloro...
If the deleterious effects of non-specific parasites are greater on vulnerable host species than on reservoir host species then exclusion of the vulnerable host through apparent competition is more likely. Evidence suggests that such a mechanism occurs in interactions between the ring-necked pheasant (Phasianus colchicus), the grey partridge (Perdix perdix), and their shared caecal nematode Het...
Abstract Millions of individuals two species non-native galliform birds, the Common Pheasant ( Phasianus colchicus ) and Red-legged Partridge Alectoris rufa are released into British countryside annually in late summer, supplementing established breeding populations these species. The biomass birds involved releases has been compared to bird biomass. However, validity this comparison is comprom...
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