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| Seiler, M.; Schwitzer, C.; Holderied, M.. |
| In response to predation pressure by raptors, snakes, and carnivores, primates employ anti-predator behaviours such as avoiding areas of high predation risk, cryptic behaviour and camouflage, vigilance and group formation (including mixedspecies associations), and eavesdropping on other species’ alarm calls. After detecting a predator, primates can produce alarm calls, show predator-specific escape strategies or even mob the predator. It remains unclear how solitary nocturnal primates respond to diurnal predation pressure while they sleep or rest. The aim of this study was to investigate the diurnal anti-predator behaviour of the nocturnal and solitary Sahamalaza sportive lemur, Lepilemur sahamalazensis, which regularly rests in exposed locations. We... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Critically endangered; Nocturnal primates; Fragmentation; Playback experiments; Predator-specific strategy; 42.84. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/475370 |
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| Taylor, L.A.; Müller, D.W.H.; Schwitzer, C.; Kaiser, T.M.; Codron, D.; Schulz, E.; Clauss, M.. |
| Tooth wear can affect body condition, reproductive success and life expectancy. Poor dental health is frequently reported in the zoo literature, and abrasion-dominated tooth wear, which is typical for grazers, has been reported in captive browsing ruminants. The aim of this study was to test if a similar effect is evident in captive rhinoceros species. Dental casts of maxillary cheek teeth of museum specimens of captive black (Diceros bicornis; browser), greater one-horned (Rhinoceros unicornis; intermediate feeder) and white rhinoceroses (Ceratotherium simum; grazer) were analysed using the recently developed extended mesowear method for rhinoceroses. Captive D. bicornis exhibited significantly more abrasion-dominated tooth wear than their free-ranging... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Rhinoceros; Mesowear; Tooth wear; Captivity; Nutrition; Browser; Grazer; 42.84; 42.62. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/471325 |
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| Rode, E.J.; Nekaris, K.A-I.; Markolf, M.; Schliehe-Diecks, S.; Seiler, M.; Radespiel, U.; Schwitzer, C.. |
| Shelters such as leaf nests, tree holes or vegetation tangles play a crucial role in the life of many nocturnal mammals. While information about characteristics and availability of these resources may help in conservation planning, nest use gives an indication about a species’ social organisation. The northern giant mouse lemur (Mirza zaza) is threatened by habitat loss within its restricted range. Our aim was to examine nest site preferences of M. zaza and to explore the species’ social organisation by examining sleeping site aggregation size and genetic relatedness within and between such aggregations. In the Ankarafa Forest inside Sahamalaza – Iles Radama National Park, northwestern Madagascar, we radio-tagged five male and three female M. zaza and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Conservation; Fragmentation; Genetic diversity; Nest utilisation; Sleeping site; Small population genetics; 42.84. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/447982 |
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