Now showing items 31-40 of 2203
Invasion debt – quantifying future biological invasions
(John Wiley & Sons Ltd, 2016)
Aim We develop a framework for quantifying invasions based on lagged trends in invasions (‘invasion debt’) with the aim of identifying appropriate metrics to quantify delayed responses at different invasion stages – from ...
Proteaceae juvenile periods and post-fire recruitment as indicators of minimum fire return interval in eastern coastal fynbos
(International Association for Vegetation Science, 2013)
Question: Fire management practices aimed at biodiversity conservation are often in conflict with hazard reduction requirements. Particularly in protected areas where such conflict of interest exists, the question is asked: ...
Validation of the phenology model for the codling moth, Cydia pomonella (Lepidoptera: Tortricidae), in South African pome fruit orchards
(Entomological Society of Southern Africa, 2014)
The codling moth, Cydia pomonella (Linnaeus) (Lepidoptera: Tortricidae), is a key pest of pome fruits in theWestern Cape, SouthAfrica. Up to 1993, the industry recommendation for commencement of the codling moth spray ...
The effect of elevation and time on mountain spider diversity: a view of two aspects in the Cederberg mountains of South Africa
(John Wiley & Sons Ltd, 2016)
Aim Our aim is to test if long-term patterns in α alpha and ß beta diversity along an elevational transect on two aspects of a mountain are consistent through time using spiders as model organisms, quantify the role of ...
Exacerbation of photosynthetic damage through increased heat-light stress resulting from Gargaphia decoris sap-feeding
(Elsevier Inc., 2016)
Solanum mauritianum (Bugweed) is one of the world’s worst ecological weeds, being targeted for biological control in South Africa since 1984. One of two promising biocontrol agents released against S. mauritianum is a ...
An inventory of natural resources harvested from national parks in South Africa
(AOSIS OpenJournals, 2013-05-30)
Resource harvesting is permissible within South African protected areas under certain conditions as part of benefit sharing that seeks to strengthen relationships with communities living adjacent to parks. However, not ...
First record of an introduction of the giant pangasius, Pangasius sanitwongsei Smith 1931, into an African river
(African Zoology, 2013-10)
A catfish captured in the Breede River (33°56’41.6”S, 20°4’45.6”E) in South Africa was identified using morphological and genetic techniques as the giant pangasius, Pangasius sanitwongsei Smith 1931, a new record for South ...
A new species of Hersilia Audouin, 1826 (Araneae: Hersiliidae) from India, with notes on its natural history
(Magnolia Press, 2010-09-15)
A new species of Hersilia Audouin, H. orvakalensis sp. nov., is described from Andhra Pradesh, India. The taxonomic affinities of the species are discussed and a brief note on its natural history is provided.
A global assessment of a large monocot family highlights the need for group-specific analyses of invasiveness
(Oxford University Press, 2016)
Significant progress has been made in understanding biological invasions recently, and one of the key findings is that the determinants of naturalization and invasion success vary from group to group. Here, we explore this ...
Small urban centres as launching sites for plant invasions in natural areas: insights from South Africa
Alien species are often first introduced to urban areas, so it is unsurprising that towns and cities are often hotspots for invasions. However, while large cities are usually the first sites of introduction, small towns ...