Content with tag bats .

Understanding the complex relationships between ecological traits and spatial distribution patterns

The study of the relationship between the ecological niche breadth and spatial distribution of species has been a core topic in ecology. Ecological niche breadth measures the degree of specialisation or generalisation of the resources species use (Eltonian definition of ecological niche) or the conditions which they inhabit (Grinnellian definition). Different domains of the ecological niche, such as climatic tolerance, habitat breadth and dietary breadth, have been shown to be positively...

Human activities link fruit bat presence to Ebola virus disease outbreaks

A significant link between forest loss and fragmentation and outbreaks of Ebola virus disease (EVD) in humans has been documented. Deforestation may alter the natural circulation of viruses and change the composition, abundance, behaviour and possibly viral exposure of reservoir species. This in turn might increase contact between infected animals and humans. Fruit bats of the family Pteropodidae have been suspected as reservoirs of the Ebola virus. At present, the only evidence associating...

Tropical bat as mammalian model for skin carotenoid metabolism

Animals cannot synthesize carotenoid pigments de novo, and must consume them in their diet. Most mammals, including humans, are indiscriminate accumulators of carotenoids but inefficiently distribute them to some tissues and organs. To date, no mammal has been known to have evolved physiological mechanisms to incorporate and deposit carotenoids in the skin or hair. Here it is shown that the Honduran white bat colors its skin bright yellow with the deposition of the xanthophyll lutein.