Critically Endangered
Madame Berthe's mouse lemur
Microcebus berthae
Madame Berthe's mouse lemur is a dwarf lemur in the family Cheirogaleidae (order Primates) — Microcebus berthae, recorded as Critically Endangered and tied to Madagascar.
Appearance
Madame Berthe's mouse lemur has short, dense dorsal pelage that is bicolored cinnamon and yellow ochre. The middorsal stripe is tawny in color. The midventral area of this species is chamois in color while the flanks are a mixture of pale chamois and light pale neutral gray.
Madame Berthe's mouse lemur or Berthe's mouse lemur is the smallest of the mouse lemurs and the smallest primate in the world. The average body length is 9.2 cm (3.6 in) and seasonal weight is around 30 g (1.1 oz).
Range and habitat
Madame Berthe's mouse lemur is known to live in Kirindy Forest in Madagascar. Because of the high rate of deforestation in the surrounding Menabe forests (52%) between 1985 and 2000, less than 22,000 hectares (54,000 acres) of inhabitable forests remained between Kirindy Park, the Tsiribihina River, and the Reserve. Given that this lemur occurs at 0.36 lemurs per ha, it is estimated that about 7,920 mouse lemurs were left in the area in the year 2000.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Diet and breeding
Madame Berthe's mouse lemur are typically solitary foragers, but are not without social interaction with other members of their species. Be it alone or in a group, Madame Berthe's mouse lemur tend to sleep in leaf nests in trees, or without a nest, in hole-like structures.
In crisis
CITES lists this taxon on Appendix I. Confirm the current appendix on the CITES checklist.
Madame Berthe's mouse lemur is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Madame Berthe's mouse lemur, Wikidata item Q827793. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.



