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Bioregion heterogeneity correlates with extensive mitochondrial DNA diversity in the Namaqua rock mouse, Micaelamys namaquensis (Rodentia: Muridae) from southern Africa - evidence for a species complex
(BioMed Central Ltd., 2010)
Background:
Intraspecific variation within the diverse southern African murine rodents has not been extensively investigated, yet cryptic diversity is evident in several taxa studied to date. The Namaqua rock mouse, ...
Ecological niche modeling of the invasive potential of Nile tilapia Oreochromis niloticus in African river systems: concerns and implications for the conservation of indigenous congenerics
(2013-06-30)
This study applied ecological niche models
to determine the potential invasive range of Nile tilapia, Oreochromis niloticus, with a particular focus on river systems in southern Africa where it is now established and ...
Ontogenetic variation and craniometric sexual dimorphism in the social giant mole-rat, Fukomys mechowii (Rodentia: Bathyergidae), from Zambia
(2010-10)
The degree of maxillary molar tooth-row eruption and wear were used to assign samples of the social giant mole-rat, Fukomys mechowii, from Zambia, into nine relative age classes in order to assess ontogenetic (age) variation ...
Habitat-specific shaping of proliferation and neuronal differentiation in adult hippocampal neurogenesis of wild rodents
(Open Access Publishing, 2013-04)
Daily life of wild mammals is characterized by a multitude of attractive and aversive stimuli. The hippocampus processes complex polymodal information associated with such stimuli and mediates adequate behavioral responses. ...
Seasonal reproduction in the eastern rock elephant-shrew: Influenced by rainfall and ambient temperature?
(Zoological Society of London, 2012)
Because environmental conditions vary seasonally in most regions, many small
mammals reproduce at a specific time of the year to maximize their reproductive
success. In the tropics and subtropics, the breeding season is ...
Evidence of a contact zone between Rhabdomys dilectus(Rodentia: Muridae) mitotypes in Gauteng province, South Africa
(Zoological Society of Southern Africa, 2015)
Recent studies have described the presence of several mitochondrial lineages within Rhabdomys, which was previously considered to be a monotypic genus. The exact distributional limits of the species and subspecies and their ...
A qualitative ecological risk assessment of the invasive Nile tilapia, Oreochromis niloticus in a sub-tropical African river system (Limpopo River, South Africa)
(John Wiley & Sons Ltd., 2013)
1. This study outlines the development of a qualitative risk assessment method and its application as a screening tool for determining the risk of establishment and spread of the invasive Nile tilapia, Oreochromis niloticus ...
Craniometric sexual dimorphism and age variation in the South African Cape dune mole-rat (Bathyergus Suillus)
(American Society of Mammalogists, 2007)
Because absolute mammalian age is difficult to measure directly, various methods have been used for its estimation. Among these methods, the degree of molar eruption and wear are considered to be the most reliable indicators ...
Molecular and morphometric assessment of the taxonomic status of Ectemnorhinus weevil species (Coleoptera : Curculionidae, Entiminae) from the sub-Antarctic Prince Edward Islands
(BLACKWELL PUBLISHING, 2006-08)
There are long-standing controversies on the taxonomic status of Ectemnorhinus weevil species occurring on the sub-Antarctic Prince Edward Islands. Since the two islands that constitute the Prince Edward Islands archipelago ...
A comparative analysis of components incorporated in conservation priority assessments: a case study based on South African species of terrestrial mammals.
(2007-07-06)
Assessing the risk of extinction to species forms an essential part of regional conservation initiatives that facilitate the allocation of limited resources for conservation. The present study conducted conservation priority ...