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While ecological and conservation consequences of combining animals of varied genetic backgrounds have been widely discussed, the demonstration of effects that stem from lineage mixing remains elusive. Since management agencies relocate populations or supplement them with individuals regularly,...
This study analyses the winter colonization of an archipelago of 31 forests (0·1–350 ha) in central Spain by the guild of pariforms ( Parus, Aegithalos, Regulus, Sitta and Certhia ). Two hypotheses are considered: (a) that birds with similar habitat preferences tend to disappear simultaneously...
Soulé et al. ( Biol. Conserv. , 1979, 15 , 259-72) predicted that without intensive management, East African game reserves would lose a large proportion of their large mammal faunas if they became completely insularized (isolated from other habitat areas with healthy wildlife populations). They...
In a study of factors affecting nesting success of green turtles Chelonia mydas in Turkey, over 75% of nests were preyed upon by either red fox Vulpes vulpes or golden jackal Canis aureus . The siting of nests, but not their susceptibility to predation, was affected by the location of the...
Numbers of nocturnal forest birds and mammals were estimated at 200 widely spaced sites in south-eastern New South Wales to determine their distribution in relation to logging. The focus was on the logged-unlogged forest mosaic rather than on individual logged or unlogged patches. This approach,...
The proportions of species in many of the 14 butterfly families and subfamilies found in the tropical forests of mainland Central and South America show relatively invariant or simple relationships with overall butterfly species richness at both local and regional scales. These relationships...
Identifying the characteristics that make a species vulnerable to extinction following habitat fragmentation is one of the most pressing problems in conservation biology. One suggestion is that habitat specialists are less able to cope with rapid changes to their habitat or to move through the...
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