African elephants
نویسندگان
چکیده
منابع مشابه
Social networks in African elephants
Some of the most highly social animals-including elephants, and some primates, cetaceans, and social carnivores-live in “fission-fusion” societies where social groups divide and re-form over the course of hours, days, or weeks. These societies are thought to respond adaptively to changes in the physical and social environment, and are thus ideal for testing hypotheses about the evolutionary for...
متن کاملBehavioural inbreeding avoidance in wild African elephants.
The costs of inbreeding depression, as well as the opportunity costs of inbreeding avoidance, determine whether and which mechanisms of inbreeding avoidance evolve. In African elephants, sex-biased dispersal does not lead to the complete separation of male and female relatives, and so individuals may experience selection to recognize kin and avoid inbreeding. However, because estrous females ar...
متن کاملEffects of economic downturns on mortality of wild African elephants.
Declines in economic activity and associated changes in human livelihood strategies can increase threats of species overexploitation. This is exemplified by the effects of economic crises, which often drive intensification of subsistence poaching and greater reliance on natural resources. Whereas development theory links natural resource use to social-economic conditions, few empirical studies ...
متن کاملMale African elephants discriminate and prefer vocalizations of unfamiliar females
Gaining information about conspecifics via long-distance vocalizations is crucial for social and spatially flexible species such as the African elephant (Loxodonta africana). Female elephants are known to discriminate individuals and kin based on acoustic cues. Specifically, females approached the loudspeaker exclusively with playbacks of familiar individuals with high association indexes, inte...
متن کاملContinent-wide survey reveals massive decline in African savannah elephants
African elephants (Loxodonta africana) are imperiled by poaching and habitat loss. Despite global attention to the plight of elephants, their population sizes and trends are uncertain or unknown over much of Africa. To conserve this iconic species, conservationists need timely, accurate data on elephant populations. Here, we report the results of the Great Elephant Census (GEC), the first conti...
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ژورنال
عنوان ژورنال: Genome Biology
سال: 2001
ISSN: 1465-6906
DOI: 10.1186/gb-spotlight-20010824-02