Vigilance Behaviour in Grazing African Antelopes
Citations
239Â citations
238Â citations
Cites background from "Vigilance Behaviour in Grazing Afri..."
...However Underwood (1982) showed that antelopes increased their vigilance when in habitats he categorized as closed (i.e. with reduced visibility)....
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226Â citations
Cites background from "Vigilance Behaviour in Grazing Afri..."
...Alternatively, consumers may avoid complex habitats if their ability to detect predators is reduced (Underwood 1982; Riginos & Grace 2008) or the physical structure obstructs their movements, limiting access to preferred food resources (van de Koppel et al. 1996)....
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...Alternatively, consumers may avoid complex habitats if their ability to detect predators is reduced (Underwood 1982; Riginos & Grace 2008) or the physical structure obstructs their movements, limiting access to preferred food resources (van de Koppel et al....
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224Â citations
Cites background from "Vigilance Behaviour in Grazing Afri..."
...In the Serengeti, Underwood (1982) found that wildebeest, impala, topi, and reedbuck all exhibited greater predator vigilance and, consequently, less forage intake, in areas with more woody vegetation....
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...Because smaller herbivores are more susceptible to predation (Sinclair et al. 2003, Radloff and du Toit 2004) and exhibit greater anti-predator vigilance (Underwood 1982, Berger and Cunningham 1988), we would expect smaller-bodied species to prefer open areas more than larger-bodied species do....
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219Â citations
References
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Additional excerpts
...The 'selfish herd' (HAMILTON, 1971)...
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2,088Â citations
"Vigilance Behaviour in Grazing Afri..." refers background in this paper
...Such habitat differences may have influenced the evolution of social and anti-predator behaviour in antelope (GEIST, 1974; JARMAN, 1974; ESTES, 1974) and may also affect both predator and prey behaviour on a day to day basis (SCHALLER, 1972; KRUUK, 1972; CURIO, 1976; EDMUNDS, 1974)....
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...If scanning reduces predation, it may take up less of the large animals' time either because both the number and the range of potential predators are smaller (JARMAN, 1974; GEIST, 1974), or because these antelope, being found in large groups, either are (a) less easy for a predator to find, (b) share vigilance with other group members (CARACAO et al....
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...The smaller and, according to JARMAN (1974), the more selective species are those which show significant correlations between the rate of looking and indices of feeding success, supporting the possibility that scanning forms a part of foraging behaviour....
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919Â citations
"Vigilance Behaviour in Grazing Afri..." refers background in this paper
...Such habitat differences may have influenced the evolution of social and anti-predator behaviour in antelope (GEIST, 1974; JARMAN, 1974; ESTES, 1974) and may also affect both predator and prey behaviour on a day to day basis (SCHALLER, 1972; KRUUK, 1972; CURIO, 1976; EDMUNDS, 1974)....
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