منابع مشابه
African mammals, foodwebs, and coexistence.
In the 65 million years since a mass extinction led to the demise of dinosaurs, evolution has generated amazingly diverse and complex foodwebs on each continent (1). These foodwebs contain hundreds to thousands of interacting species, each linked to other species either by feeding on them or by being fed on by them. However, it has been difficult to determine consumer diets across seasons, indi...
متن کاملPlague antibody in large African mammals.
Plague hemagglutinating antibodies to a titer of 1:1,024 were demonstrated in 6.6% of buffalo and 0.3% of elephant sera tested 1 year after a plague epidemic in the same area.
متن کاملProtein sequence signatures support the African clade of mammals.
DNA sequence evidence supports a superordinal clade of mammals that comprises elephants, sea cows, hyraxes, aardvarks, elephant shrews, golden moles, and tenrecs, which all have their origins in Africa, and therefore are dubbed Afrotheria. Morphologically, this appears an unlikely assemblage, which challenges-by including golden moles and tenrecs-the monophyly of the order Lipotyphla (Insectivo...
متن کاملSpotting East African Mammals in Open Savannah from Space
Knowledge of population dynamics is essential for managing and conserving wildlife. Traditional methods of counting wild animals such as aerial survey or ground counts not only disturb animals, but also can be labour intensive and costly. New, commercially available very high-resolution satellite images offer great potential for accurate estimates of animal abundance over large open areas. Howe...
متن کاملImpacts of roads and hunting on central African rainforest mammals.
Road expansion and associated increases in bunting pressure are a rapidly growing threat to African tropical wildlife. In the rainforests of southern Gabon, we compared abundances of larger (>1 kg) mammal species at varying distances from forest roads and between hunted and unhunted treatments (comparing a 130-km2 oil concession that was almost entirely protected from bunting with nearby areas ...
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ژورنال
عنوان ژورنال: Annals and Magazine of Natural History
سال: 1910
ISSN: 0374-5481
DOI: 10.1080/00222931008692728