Spontaneous soft tissue tumours in aged mouse lemurs (Microcebus spp).

Mouse lemurs (Microcebus spp) are small Madagascan strepsirrhine primates increasingly used as an animal model in ageing research. During a period of 10 years, neoplastic disease occurred in 47 grey (Microcebus murinus) and Goodman's (Microcebus lehilahtsara) mouse lemurs from a captive colony in Germany. Approximately half of these tumours appeared histologically as soft tissue tumours (STTs) with a significantly higher proportion of STTs in Goodman's mouse lemurs (87.

Temporal dynamics in gastrointestinal helminth infections of sympatric mouse lemur species ( and ) in Northwestern Madagascar.

Madagascar's lemur populations are declining in dwindling habitats due to anthropogenic expansion and changing climatic conditions. Gastrointestinal parasites can be important indicators to assess the health status of threatened species. However, parasites, hosts and the environment are connected in complex interactions.

Montane rainforest dynamics under changes in climate and human impact during the past millennia in northern Madagascar.

Although it is well known that humans substantially altered the Malagasy ecosystems, the timing of the human arrival as well as the extension of their environmental impact is yet not well understood. This research aims to study the influence of early human impact and climate change on rainforests and wildlife in northern Madagascar during the past millennia. Results obtained from the lake sediment in a montane environment showed significant changes in vegetation within the lake catchment associated with a major drought that started approximately 1100 years ago.

Evidence for female dominance in the Milne-Edwards' sportive lemur (Lepilemur edwardsi).

Female dominance over males is more frequent in Malagasy lemurs than in other primate clades, but patterns of female-male dominance vary among species, and few data are available for one particularly species-rich genus, Lepilemur. We investigated the types, temporal distribution, and outcome of female-male agonistic conflicts in the Milne-Edwards' sportive lemur (Lepilemur edwardsi). Ten L.