منابع مشابه
Spotted hyenas
What are spotted hyenas? Spotted hyenas (Crocuta crocuta) are gregarious predatory mammals found throughout sub-Saharan Africa. They are the second largest African carnivores after lions, and they are more abundant than any other large carnivore in Africa. They look rather doglike, yet are more closely related to cats than dogs, and their closest living relatives are the mongooses and civets. A...
متن کاملInnovative problem solving by wild spotted hyenas.
Innovative animals are those able to solve novel problems or invent novel solutions to existing problems. Despite the important ecological and evolutionary consequences of innovation, we still know very little about the traits that vary among individuals within a species to make them more or less innovative. Here we examine innovative problem solving by spotted hyenas (Crocuta crocuta) in their...
متن کاملPersonality dimensions in spotted hyenas (Crocuta crocuta).
Personality ratings of 34 spotted hyenas (Crocuta crocuta) were made by 4 observers who knew the animals well. Analyses suggest that (a) hyena personality traits were rated with generally high reliability; (b) 5 broad dimensions (Assertiveness, Excitability, Human-Directed Agreeableness, Sociability, and Curiosity) captured about 75% of the total variance; (c) this dimensional structure could n...
متن کاملSocioecological variables predict telomere length in wild spotted hyenas.
Telomeres are regarded as important biomarkers of ageing and serve as useful tools in revealing how stress acts at the cellular level. However, the effects of social and ecological factors on telomere length remain poorly understood, particularly in free-ranging mammals. Here, we investigated the influences of within-group dominance rank and group membership on telomere length in wild adult spo...
متن کاملAltered behaviour in spotted hyenas associated with increased human activity
Although increasing human population density is often associated with decline or extinction of local carnivore populations (Woodroffe & Ginsberg, 1998; Woodroffe & Ginsberg, 1998, 2000), few studies have examined how human activity directly affects large carnivores (Frank & Woodroffe, 2001; Sunquist & Sunquist, 2001). The literature on basic ecology of mammalian carnivores (e.g. Gittleman & Har...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2006
ISSN: 0960-9822
DOI: 10.1016/j.cub.2006.10.009