1887

n African Zoology - Cryptic lineages of little free-tailed bats, (Chiroptera: Molossidae) from southern Africa and the western Indian Ocean islands

Volume 44, Issue 1
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X
This article is unavailable for purchase outside of Africa

 

Abstract

We investigate mitochondrial DNA and craniometric variation in southern African and Malagasy populations of the small and morphologically variable, house-roosting molossid bat, in relation to Malagasy populations of the related, smaller-sized species, . Both cytochrome and D-loop sequences show to be nested within , with Malagasy forming a sister group to African and Malagasy . Four distinct D-loop clades are found in southern African populations, all of which occur sympatrically in the greater Durban area of KwaZulu-Natal Province, whilst two of the Durban clades also characterize 1) northern KwaZulu-Natal and low-lying (<600 m) areas of Swaziland, and 2) 'inland' populations comprising the Kruger National Park and higher-lying (>600 m) areas of Swaziland. Clades from low-lying areas show evidence of historical demographic expansion around 3300-13 000 years ago (KwaZulu-Natal coastal clade, Clade A1) to 14 700-60 000 years ago (Durban clade, Clade B1), whilst the inland clade (Clade B2a) was demographically more stable. The origin of these clades can be explained by sea level and vegetation changes hypothesized to follow the Last Glacial Maximum (LGM) after 18 000 years ago. Sympatric clades are shown to differ significantly in the proportional width of the braincase, and ongoing work will test evidence for acoustic and other morphological differences between them.

Loading full text...

Full text loading...

Loading

Article metrics loading...

/content/afzoo/44/1/EJC18101
2009-04-01
2019-09-16

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error