Diademed sifakas (Propithecus diadema) use olfaction to forage for the inflorescence of subterranean parasitic plants (Balanophoraceae: Langsdorffia sp., and cytinaceae: Cytinus sp.)

Article Abstract:

The apparent use of olfaction by a wild population of Propithecus diadema in Madagascar to locate a hidden food resource, the inflorescences of two subterranean parasitic plants (Langsdorffia sp. [Balanophoraceae] and Cytinus sp. [Cytinaceae]), is examined. Results indicate that sifakas use olfaction, rather than vision, for locating Langsdorffia and Cytinus inflorescences.

Usage, Physiological aspects, Smell

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Living in forest fragments reduces group cohesion in diademed sifakas (Propithecus diadema) in Eastern Madagascar by reducing food patch size

Article Abstract:

The effects of forest fragmentation on the within-group spatial ecology of a critically endangered primate, the diademed sifaka (Propithecus diadema), at Tsinjoarivo, Madagascar, are examined. The results have illustrated that primate populations are capable of making flexible responses in disturbed and fragmented habitats.

Analysis, Evaluation, Natural resources, Habitat partitioning (Biology), Habitat partitioning (Ecology), Mistletoe, Mistletoes, Social cohesion

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Ontogeny of conspecific and heterospecific alarm call recognition in wild Verreaux's sifakas (Propithecus verreauxi verreauxi)

Article Abstract:

A study on infant sifakas from two birth-cohorts conspecific alarm calls and hetrospecific alarm calls of red-fronted lemurs is conducted. This helps to understand how and at which stage infants acquire escape responses to alarm calls and predators.

Germany, Growth, Alarm responses (Animal behavior), Company growth, Ontogeny, Alarm reaction

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