Abstract
Myotis simus is apparently restricted to tropical and subtropical South American lowlands, with a possible disjunction isolating northern and southern populations. Twenty-eight museum and literature records were assembled and analysed in the context of a taxonomic review of South American species of Myotis. In order to model the distribution of M. simus, to reveal putative areas of occurrence and environmental constraints to its distribution, as well as to test the previously proposed hypothesis of disjunct distribution, Maximum entropy algorithm (MaxEnt) was implemented on the information retrieved from the sampling localities, using nine environmental variables. Two regions with increased probability values were revealed in the Amazon and Paraná basins, connected by a bottleneck in southeastern Bolivia, which provides further support for the previously proposed hypothesis of disjunctive distribution. The predicted distribution for M. simus was strongly associated with the drainage basins, precipitations of the driest quarter, mean temperatures of the warmest quarter and altitude. The Andean eastern slopes and the Guyana, Paraná and Central Brazilian plateaus delimit the geographical distribution of M. simus, and the confirmed records document its presence in both terra firme and floodplain areas in lowland forest and savanna formations across South America.
©2011 by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Original Studies
- Resources partitioning in a fruit bat community of the southern Atlantic Forest, Brazil
- Current and potential distribution of Myotis simus (Chiroptera, Vespertilionidae)
- Diurnal time budget of goitred gazelles (Gazella subgutturosa Güldenstaedt, 1780) in Xinjiang, China
- Sex ratios of Arabian Sand Gazelle Gazella marica Thomas, 1897 in the Mahazat as-Sayd Protected Area, Saudi Arabia
- Influences of pine plantations on small mammal assemblages of the Patagonian forest-steppe ecotone
- Assessing mammal distribution and abundance in intricate eastern Himalayan habitats of Khangchendzonga, Sikkim, India
- Rhipidomys (Rodentia, Cricetidae) from Paraguay: noteworthy new records and identity of the Paraguayan species
- Observations of the woolly flying squirrel Eupetaurus cinereus in Pakistan
- Observations on the captive behavior of the rare Patagonian opossum Lestodelphys halli (Thomas, 1921) (Marsupialia, Didelphimorphia, Didelphidae)
- Short Notes
- Use of space by the black-eared opossum Didelphis aurita in a rural area in southeastern Brazil
- New records of bats for the state of Minas Gerais, with range extension of Eptesicus chiriquinus Thomas (Chiroptera: Vespertilionidae) to southeastern Brazil
- First records of mormoopid bats (Chiroptera, Mormoopidae) from the Brazilian Atlantic Forest
- Long-term adult male sociality in ring-tailed coatis (Nasua nasua)
- Approach on the genetic diversity in a Lusitanian pine vole population
Articles in the same Issue
- Original Studies
- Resources partitioning in a fruit bat community of the southern Atlantic Forest, Brazil
- Current and potential distribution of Myotis simus (Chiroptera, Vespertilionidae)
- Diurnal time budget of goitred gazelles (Gazella subgutturosa Güldenstaedt, 1780) in Xinjiang, China
- Sex ratios of Arabian Sand Gazelle Gazella marica Thomas, 1897 in the Mahazat as-Sayd Protected Area, Saudi Arabia
- Influences of pine plantations on small mammal assemblages of the Patagonian forest-steppe ecotone
- Assessing mammal distribution and abundance in intricate eastern Himalayan habitats of Khangchendzonga, Sikkim, India
- Rhipidomys (Rodentia, Cricetidae) from Paraguay: noteworthy new records and identity of the Paraguayan species
- Observations of the woolly flying squirrel Eupetaurus cinereus in Pakistan
- Observations on the captive behavior of the rare Patagonian opossum Lestodelphys halli (Thomas, 1921) (Marsupialia, Didelphimorphia, Didelphidae)
- Short Notes
- Use of space by the black-eared opossum Didelphis aurita in a rural area in southeastern Brazil
- New records of bats for the state of Minas Gerais, with range extension of Eptesicus chiriquinus Thomas (Chiroptera: Vespertilionidae) to southeastern Brazil
- First records of mormoopid bats (Chiroptera, Mormoopidae) from the Brazilian Atlantic Forest
- Long-term adult male sociality in ring-tailed coatis (Nasua nasua)
- Approach on the genetic diversity in a Lusitanian pine vole population