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Browsing Research Articles (Zoology and Entomology) by Issue Date
Now showing items 21-40 of 1952
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(Academy of Science of South Africa, 2007-03)There are about 106 690 ha of Acacia mearnsii (wattle) plantations in South Africa. Wattle was previously grown mainly for the commercial potential of its bark (a source of tannin extract) but is now also managed on a short ...
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(Elsevier, 2007-03-31)African swine fever (ASF) is a highly lethal and economically significant disease of domestic pigs in the southern African sub-region, where outbreaks regularly occur. There is anecdotal evidence suggesting that trans-boundary ...
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(Blackwell, 2007-04)Please open article to read abstract
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(Cambridge University Press, 2007-04)The success of efforts to re-establish mammalian carnivores within their former range is dependent on three key factors : methodological considerations, the biological requirements of the target species, and the involvement ...
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(Elsevier, 2007-04)This paper reports the effects of different diuretic factors on the Malpighian tubules of beetles. Calcitonin (CT)-like peptides from silkmoth and mosquito increase fluid secretion in a dose-dependent manner in the tubules ...
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(The Southern African Wildlife Management Association, 2007-05)Cape clawless otters, Aonyx capensis,are widely distributed in South Africa, as elsewhere on the continent. They occur in a wide variety of environments and most aquatic habitats, from freshwater lakes to the marine ...
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(South African Veterinary Association, 2007-06)The incidence of tusklessness varies between free-ranging African elephant populations. Sex-linked genetic drift predicts 2 outcomes - the condition becomes fixed and sex-specific incidences diverge when populations are ...
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(Elsevier, 2007-06)Although insects are crucial for maintaining ecosystem function, our understanding of their overall response to human activity remains limited. This is no less true of dung-burying beetles (Coleoptera: Scarabaeidae: ...
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(Royal Society, 2007-06-07)Differentiation into castes and reproductive division of labour are a characteristics of eusocial insects. Caste determination occurs at an early stage of larval development in social bees and is achieved via differential ...
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(2007-07)The South African Environmental Observation Network (SAEON), which has its origins in the scientific community, has evolved significantly over the last five years. Core government support for this emerging initiative became ...
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(Academy of Science of South Africa, 2007-07)Intelligent design, the new incarnation of creationism, is appearing in schools and universities across the world. The stock response by scientists seems to be : 'It is not science'. What proponents of intelligent design ...
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(Blackwell, 2007-08)The Cape ground squirrel Xerus inauris is unusual among social mammals as it exhibits a low reproductive skew, being a facultative plural breeder with not all females breeding within a group. We investigated pituitary ...
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(Royal Society, 2007-08)Adaptive theory predicts that mothers would be advantaged by adjusting the sex ratio of their offspring in relation to their offspring's future reproductive success. Studies investigating sex ratio variation in mammals ...
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(Elsevier, 2007-11)Please refer to abstract of article
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(Academy of Science of South Africa, 2007-11)The common myna is an Asian starling that has become established in many parts of the world outside of its native range due to accidental or deliberate introductions by humans. The South African population of this species ...
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(Springer, 2007-12)The density of wild honeybee colonies (Apis mellifera) in the African dry highland savannahs was estimated in three Nature Reserves in Gauteng, South Africa (Ezemvelo, Leeuwfontein, Suikerbosrand) based on the genotypes ...
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(Springer, 2007-12)Two of the 22 presently recognised African swine fever (ASF) virus p72 genotypes are genetically homogeneous and are associated with domestic pig cycles. Of these, genotype VIII comprises just two p72 variants, designated ...
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(Blackwell, 2008)AbstractStudies were conducted to assess the numerical response of ground-dwelling arthropods to a habitat management system ('push–pull') developed to control maize stemborers using spiders (Araneae) as an indicator group. ...
Now showing items 21-40 of 1952