Now showing items 31-40 of 431
Biological invasions in the Antarctic: extent, impacts and implications
(CAMBRIDGE UNIV PRESS, 2005-02)
Alien microbes, fungi, plants and animals occur on most of the sub-Antarctic islands and some parts of the Antarctic continent. These have arrived over approximately the last two centuries, coincident with human activity ...
The ecological dynamics of the invasive alien Common Myna Acridotheres tristis, L (Aves: Sturnidae) in South Africa
Urbanisation and invasive alien species constitute two of the most severe threats to biodiversity conservation in the 21st century. It is particularly concerning that these two threats often occur sympatrically and work ...
Spider community responses to Chromolaena odorata invasion, grassland type and grazing intensities
Biological indicators measure components of the biota and are used to give general information about complex ecosystems in which they occur, playing key roles in conservation planning and management. This study illustrates ...
Natural Rehabilitation Potential of Riparian Zones After Alien Clearing in the Fynbos Biome – Phase 1: A Reference Study of Indigenous Seed Banks
Riparian areas contribute significantly to the spread of many invasive species which alter the ecosystem and bring about significant water loss to the river system. These areas have therefore been targeted by many alien ...
Conservation of invertebrate biodiversity on a mountain in a global biodiversity hotspot, Cape Floral Region
(Springer Science+Business Media B.V., 2008)
Mountains present particular challenges for biodiversity conservation. Table Mountain is a signiWcant mountain in a global biodiversity hotspot, the Cape Floristic Region. It has outstanding angiosperm diversity and ...
Assessing the distribution of the Argentine ant using physiological data
(Elsevier Masson SAS, 2009)
To address the lack of physiological approaches in current models assessing the potential distribution of the Argentine ant, we used data on brood development from distinct sources to evaluate a series of degreeday models ...
Invasion biology deconstructed
(Elsevier Ltd., 2009)
Nestedness of Southern Ocean island biotas: ecological perspectives on a biogeographical conundrum
(BLACKWELL PUBLISHING LTD, 2005-01)
Aim To use patterns of nestedness in the indigenous and non-indigenous biotas of the Southern Ocean islands to determine the influence of dispersal ability on biogeographical patterns, and the importance of accounting for ...
A brief histoty of marine bio-invasions in South Africa
(Zoological Society of South Africa, 2009-10)
Marine species have been introduced continuously into South Africa for more than 400 years, since the arrival of the first European explorers. Various waves of introduction can be identified over this period, each associated ...
Conserving the fishes of the Twee River, Western Cape, South Africa: revisiting the issues
(NISC (Pty) Ltd, 2009)
The Twee River catchment contains two endemic fish species — the Twee River redfin and the Twee River galaxias — which are threatened by water abstraction, habitat degradation, and the presence of introduced fishes. Fyke ...