Humans and elephants as treefall drivers in African savannas
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چکیده
منابع مشابه
Matriarchs as repositories of social knowledge in African elephants.
Despite widespread interest in the evolution of social intelligence, little is known about how wild animals acquire and store information about social companions or whether individuals possessing enhanced social knowledge derive biological fitness benefits. Using playback experiments on African elephants (Loxodonta africana), we demonstrated that the possession of enhanced discriminatory abilit...
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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...
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South Africa has seen a recent increase in the number of African elephants (Loxodonta africana) maintained in reserves and parks and managed in free contact, where they may spend a significant amount of time in close proximity to humans. This study investigates how individual elephants choose to initiate interactions with humans by examining whether interaction types and frequencies vary both b...
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 کاملClimate influences thermal balance and water use in African and Asian elephants: physiology can predict drivers of elephant distribution.
Elephant movement patterns in relation to surface water demonstrate that they are a water-dependent species. Thus, there has been interest in using surface water management to mitigate problems associated with localized elephant overabundance. However, the physiological mechanisms underlying the elephant's water dependence remain unclear. Although thermoregulation is likely an important driver,...
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ژورنال
عنوان ژورنال: Ecography
سال: 2017
ISSN: 0906-7590
DOI: 10.1111/ecog.02549