Browsing Research Articles (Botany and Zoology) by Title
Now showing items 67-86 of 337
-
Darwin not a better name than Wallace
(AkiNik Publications, 2016-02)The position of an author's surname in the alphabet is tested for randomization and double barrel names are tested in a bibliometric analysis to see which names occur more frequently in first and second position. Using an ... -
A dataset describing brooding in three species of South African brittle stars, comprising seven high-resolution, micro X-ray computed tomography scans
(BioMed Central, 2015)Background: Brooding brittle stars have a special mode of reproduction whereby they retain their eggs and juveniles inside respiratory body sacs called bursae. In the past, studying this phenomenon required disturbance ... -
Dated plant phylogenies resolve neogene climate and landscape evolution in the Cape Floristic Region
(Public Library of Science, 2015)In the context of molecularly-dated phylogenies, inferences informed by ancestral habitat reconstruction can yield valuable insights into the origins of biomes, palaeoenvironments and landforms. In this paper, we use dated ... -
Desiccation tolerance as a function of age, sex, humidity and temperature in adults of the African malaria vectors Anopheles arabiensis and Anopheles funestus
(The Company of Biologists, 2014-09)Adult mosquito survival is strongly temperature and moisture dependent. Few studies have investigated the interacting effects of these variables on adult survival and how this differs among the sexes and with age, despite ... -
Developing thresholds of potential concern for invasive alien species : hypotheses and concepts
(AOSIS, 2009)The Kruger National Park (KNP) has developed and refined a system of management called 'strategic adaptive management' (SAM), which rests on the concept of 'threshold of potential concern' (TPC). TPCs represent end-points ... -
The development and application of strategic adaptive management within South African national parks
(AOSIS, 2011)Adaptive management is an appealing approach to deal with inherent uncertainty in complex and interactive social-ecological systems (Holling 2001; Rogers 2003). In short, adaptive management is about learning-by-doing ... -
Diet of bat-eared foxes Otrocyon megalotis in the Karoo
(AOSIS, 1992)In a near-natural habitat (Karoo National Park), insects and wild fruit contributed almost equally to the diet, while more insects than plant material were consumed on a sheep farm (Saucyskuil). Adult and larval Coleoptera ... -
Different traits determine introduction, naturalization and invasion success in woody plants : proteaceae as a test case
(PLoS, 2013-09)A major aim of invasion ecology is to identify characteristics of successful invaders. However, most plant groups studied in detail (e.g. pines and acacias) have a high percentage of invasive taxa. Here we examine the ... -
Disentangling the dynamics of invasive fireweed (Senecio madagascariensis Poir. species complex) in the Hawaiian Islands
(Springer Science+Business Media B.V., 2010-07)Studies investigating the genetic variation of invasive species render opportunities to better understand the dynamics of biological invasions from an ecological and evolutionary perspective. In this study, we investigate ... -
Disentangling the roles of environment and space in ecology
(Blackwell Publishing Ltd, 2007-10)INTRODUCTION: Most core problems in ecology revolve around variations of the abundance, diversity or metabolic activity of organisms through time and space. Our fundamental questions are: ‘Why are there more organisms (or ... -
Distribution and establishment of the alien Australian redclaw crayfish, Cherax quadricarinatus, in South Africa and Swaziland
(PeerJ, 2017)Background The Australian redclaw crayfish (Cherax quadricarinatus, von Martens), is native to Australasia, but has been widely translocated around the world due to aquaculture and aquarium trade. Mostly as a result of ... -
Distribution and impact of the alien anemone Sagartia ornata in the West Coast National Park
(AOSIS Publishing, 2015-03)Sagartia ornata is an alien anemone that occurs intertidally within the West Coast National Park (WCNP). Whilst baseline distributional data was gathered in 2001, the range and abundance of this alien has not been reassessed. ... -
Distribution of 14c-photosynthetate in the shoot of vitis vinifera L. cv cabernet sauvignon I. the effect of leaf position and developmental stage of the vine
(South African Society for Enology and Viticulture, 1988)The distribution of photosynthetates, originating in leaves of different parts of the shoot of Vi tis vinifera L. cv Cabernet Sauvignon at berry set, pea size, veraison and ripeness stages, was investigated. Specific ... -
Distribution of 14C-photosynthetate in the shoot of vitis vinifera L. cv cabernet sauvignon II. the effect of partial defoliation
(South African Society for Enology and Viticulture, 1988)The effect of partial defoliation of Vitis vinifera L. cv Cabernet Sauvignon on the distribution of photosynthetates, originating in leaves in different positions on the shoot at berry set, pea size, veraison and ripeness ... -
Diversity, distributions and conservation biogeography
(Wiley-Blackwell, 2005-01)Letter written for the editorial -
Division of labor brings greater benefits to clones of carpobrotus edulis in the non-native range : evidence for rapid adaptive evolution
(Frontiers Media, 2016)Why some species become invasive while others do not is a central research request in biological invasions. Clonality has been suggested as an attribute that could contribute to plant invasiveness. Division of labor is an ... -
Do insect distributions fit our biomes?
(Academy of Science for South Africa, 2007)An assessment of biome-specificity in southern African insect assemblages was undertaken using sweep collections in fynbos, grassland, subtropical thicket and Nama-karoo. Insect samples from the same biome generally cluster ... -
Does land abandonment decrease species richness and abundance of plants and animals in Mediterranean pastures, arable lands and permanent croplands
(BioMed Central, 2013-02)Abstract Background Obscured by the more prevalent discussion of intensification and expansion of agricultural land, the impacts of the abandonment of many grasslands and croplands of the ... -
Does vegetation structure influence criminal activity? insights from Cape Town, South Africa
(International Biogeography Society, 2019)ENGLISH ABSTRACT: Dense vegetation, especially thickets of trees or shrubs, has been associated with actual and perceived crime risk in several parts of the world. In some contexts, invasive alien trees and shrubs can ... -
Dopluise (hemiptera: coccoidea) geassosieer met die wipstertmier, crematogaster peringueyi emery (hymenoptera: formicidae)
(AOSIS Publishing, 2015)Neste van die wipstertmier, Crematogaster peringueyi (Hymenoptera: Formicidae), is op verskeie plekke langs die kus van die Wes-Kaap versamel. Die doel was om vas te stel watter dopluisagtiges (Hemiptera: Coccoidea) in ...
