Living in tiny fragments: a glimpse at the ecology of Goodman's mouse lemurs (Microcebus lehilahytsara) in the relic forest of Ankafobe, Central Highlands, Madagascar.

Journal Article (Journal Article)

Habitat fragmentation is one of the major types of anthropogenic change, though fragmented landscapes predate human intervention. At present, the Central Highlands of Madagascar are covered by extensive grasslands interspersed with small discrete forest patches of unknown antiquity. Ankafobe, an actively protected site, comprises two such fragments of 12 and 30 ha, respectively, known to harbor three lemur species and other endemic wildlife. At this location, we conducted a survey of resident Goodman's mouse lemurs, Microcebus lehilahytsara, to determine baseline behavioral and ecological conditions for this isolated population. By studying primates in forest fragments, investigators can characterize the effects of shrinking habitats and decreasing connectivity on species diversity and survival, thus providing a glimpse into the potential resilience of species in the face of anthropogenic disturbance. Investigating the behavioral ecology of Goodman's mouse lemurs across their geographic range could help us understand their metabolic and ecological flexibility and predict species long-term survival prospects. We conducted night transect walks, using capture techniques and telemetry, to track eight radio-collared individuals. Preliminary density estimates based on a limited number of sightings (n = 18) were 2.19 ind/ha, and home range assessments ranged between 0.22 and 3.67 ha. Mouse lemurs traveled an average of 425 m nightly during the 5-h tracking periods and primarily fed on fruits of the mistletoe Bakerella clavata. The finding that Goodman's mouse lemurs apparently thrive in the seasonally cold and arid forest fragments in the Central Highlands indicates that they may be among the most tolerant and adaptable lemur species in Madagascar. These results point towards an exciting research program that focuses on ecological tolerance as a mechanism for long-term species survival.

Full Text

Duke Authors

Cited Authors

  • Andriambeloson, J-B; Blanco, MB; Andriantsalohimisantatra, A; Rivoharison, TV; Walker, N; Birkinshaw, C; Yoder, AD

Published Date

  • November 2021

Published In

Volume / Issue

  • 62 / 6

Start / End Page

  • 887 - 896

PubMed ID

  • 34541622

Electronic International Standard Serial Number (EISSN)

  • 1610-7365

International Standard Serial Number (ISSN)

  • 0032-8332

Digital Object Identifier (DOI)

  • 10.1007/s10329-021-00947-1

Language

  • eng