Now showing items 11-20 of 431
Spatiotemporal dynamics of the epidemic transmission in a predator-prey system
Epidemic transmission is one of the critical density-dependent mechanisms that affect species viability and dynamics. In a predator-prey system, epidemic transmission can strongly affect the success probability of hunting, ...
Effects of experimental harvesting on recruitment of an alien mussel Mytilus galloprovincialis
Successful fisheries management is underpinned by an understanding of the processes that underlie the population dynamics of exploited stocks. This study considered the effects of experimental harvesting on recruitment of ...
Two new relict Syncordulia species found during museum and field studies of threatened dragonflies in the Cape Floristic Region (Odonata: Corduliidae)
(Magnolia Press, 2007)
Red List assessments often require the verification of records and taxonomy in museum collections and the field. Such research during an assessment of threatened dragonflies in the Cape Floristic Region (CFR) biodiversity ...
Rescuing the extinction of experience
(Springer Science+Business Media B.V., 2007)
Environmental Effects on Coleoptera Diversity in the Maloti-Drakensberg Region
A general paucity of studies on the dynamics of invertebrate assemblages exists despite the pivotal role that they play in ecosystem functioning. Altitude and season play vital roles in determining the composition of ...
The effectiveness of active restoration following alien clearance in fynbos riparian zones and resilience of treatments to fire
(Elsevier B.V., 2008)
In 1998, a restoration field trial was initiated in a catchment near Wellington (Western Cape, South Africa) to determine whether fynbos riparian scrub vegetation cleared of woody invasive alien trees require post-clearance ...
Refining the process of agent selection through understanding plant demography and plant response to herbivory
Understanding plant demography and plant response to herbivory is critical to the selection of effective weed biological control agents. We adopt the metaphor of ‘filters’ to suggest how agent prioritisation may be improved ...
Searching for generality in the patterns of parasite abundance and distribution: Ectoparasites of a South African rodent, Rhabdomys pumilio
(Elsevier Publishers, 2009)
We studied abundance and distribution of seven ectoparasite species (fleas Chiastopsylla rossi and Dynopsyllus ellobius, a louse Polyplax arvicanthis, mites Androlaelaps fahrenholzi and Laelaps giganteus and two ticks ...
Protected areas and regional avian species richness in South Africa
(ROYAL SOCIETY, 2006-06-22)
Protected areas are generally regarded as essential for the long-term maintenance of biodiversity. Evidence for their effectiveness in this regard is, however, somewhat equivocal. Here, we document the relationship between ...
A Bayesian Solution to the Modifiable Areal Unit Problem
(Springer-Verlag, Berlin, 2009)
The Modifiable Areal Unit Problem (MAUP) prevails in the analysis of spatially aggregated data and influences pattern recognition. It describes the sensitivity of the measurement of spatial phenomena to the size (the ...