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Now showing items 31-40 of 46
Reproductive photoresponsiveness in male spiny mice from South Africa
(Zoological Society of London, 2012)
Many seasonally breeding mammals use changes in photoperiod as a reliable cue
to time reproduction. Photoperiodic timing assists an animal in predicting annual
environmental changes in its habitat and therefore, enables ...
Trophic overlap between fish and riparian spiders: potential impacts of an invasive fish on terrestrial consumers
(John Wiley & Sons Ltd., 2016)
Studies on resource sharing and partitioning generally consider species that occur in the same habitat. However, subsidies between linked habitats, such as streams and riparian zones, create potential for competition between ...
Bartonellae of the Namaqua rock mouse, Micaelamys namaquensis (Rodentia: Muridae) from South Africa
(Elsevier, 2012)
The aim of this study was to determine Bartonella prevalence and diversity in Namaqua
rock mice, Micaelamys namaquensis, a species endemic to South Africa, which can attain
pest status. A total of 100 heart samples ...
Is reproduction of male eastern rock sengis (Elelphantulus myurus) from southern Africa affected by photoperiod
(NRC Research Press, 2016)
Many mammals use the change in day length to time physiological and behavioural activities on a seasonal basis. Particularly, mammals from temperate regions use photoperiod to regulate reproductive functions; however, ...
A mathematical epidemiological model of gram-negative Bartonella bacteria: Does differential ectoparasite load fully explain the differences in infection prevalence of Rattus rattus and R. norvegicus?
(Taylor & Francis, 2012)
We postulate that the large difference in infection prevalence, 24% versus 5%, in R. norvegicus and R. rattus,
respectively, between these two co-occurring host species may be due to differences in ectoparasite and
potential ...
Helminth composition and prevalence of indigenous and invasive synanthropic murid rodents in urban areas of Gauteng Province, South Africa
(Cambridge University Press, 2018)
Although synanthropic rodents such as the indigenous species, Mastomys coucha, and the invasive species, Rattus norvegicus, R. rattus and R. tanezumi, are well-known to be hosts to various micro- and macroparasites, their ...
Molecular characterization of cosmopolitan and potentially co-invasive helminths of commensal, murid rodents in Gauteng Province, South Africa
(Springer, 2018)
Concurrent studies of helminth parasites of introduced and native rodent species are few and miss the opportunity to identify
potential co-invasive parasite species. This study employed molecular tools to infer the phylogeny ...
Ananlysis of gonadotrophin-releasing hormone-1 and kisspeptin neuronal systems in the nonphotoregulated seasonally breeding eastern rock elephant-shrew (Elephantulus myurus)
(Wiley Periodicals Inc., 2018)
Of the 18 sub-Saharan elephant-shrew species, only eastern rock elephant-shrews reproduce seasonally throughout their distribution, a process seemingly independent of photoperiod. The present study characterizes gonadal ...
Niche complementarity between an alien predator and native omnivorous fish in the Wilge River, South Africa
(Springer, 2018)
A major challenge in biological invasions is to predict community susceptibility to invasion. This study investigated trophic interrelationships between an alien predator, largemouth bass (Micropterus salmoides), and native ...
The influence of distance to perennial surface water on ant communities in Mopane woodlands, northern Botswana
(John Wiley & Sons Ltd, 2019)
Studies of biodiversity along environmental gradients provide information on how ecological communities change in response to biotic and abiotic factors. For instance, distance to water is associated with several factors ...