1999: The influence of ornithogenic products on the nutrient status of soils surrounding nests in... more 1999: The influence of ornithogenic products on the nutrient status of soils surrounding nests in nunataks in Dronning Maud Land, Antarctica. Polar
Abstract Breeding snow petrels (Pagodroma nivea) may be a major source of nutrients for the ecosy... more Abstract Breeding snow petrels (Pagodroma nivea) may be a major source of nutrients for the ecosystems on the inland nunataks (mountain outcrops) of continental Antarctica. To test this theory, the δ 15 N and δ 13 C values of soil and plants (moss, lichen and algae) from 11 nunataks with and without breeding snow petrels in northwestern Dronning Maud Land were compared. High δ 15 N values in all samples from nunataks with breeding birds provide a strong indication of the presence of breeding birds, as well as the use of bird- ...
A designação de entidades geográficas neste livro e a apresentação do material, não refletem qual... more A designação de entidades geográficas neste livro e a apresentação do material, não refletem qualquer opinião por parte da UICN ou de qualquer das organizações financiadoras, em relação ao estatuto legal de um paÃs, território ou área, ou das suas autoridades, ou em relação á delimitação das suas fronteiras ou limites geográficos.
... Service PO Box 30 Kwale, Kenya Esmond Bradley Martin PO Box 15510, Mbagathi 00503 Nairobi, Ke... more ... Service PO Box 30 Kwale, Kenya Esmond Bradley Martin PO Box 15510, Mbagathi 00503 Nairobi, Kenya John Mason Nature ... Cornelio Ntumi Department of Biological Sciences University of Eduardo Mondlane Maputo CP 257, Mozambique Patrick Omondi Kenya Wildlife ...
The Critically Endangered black rhinoceros Diceros bicornis occurs mainly in protected areas. Hlu... more The Critically Endangered black rhinoceros Diceros bicornis occurs mainly in protected areas. Hluhluwe-Umfolozi Park, South Africa, contains a key source population for black rhino conservation, and declining population productivity has been attributed to negative habitat changes and a reduction in carrying capacity. As home range increase may be an index of declining habitat quality we determined the home ranges of the black rhino in the Park and compared these ranges with previous estimates. The average size of the home ranges during 1991-2001 was 23.07 ¡ SE 0.81 km 2 , which is 54% greater than in the 1980s. Sex and the availability of water did not influence home ranges.
E M S L I E , R.H. (1999) The feeding ecology of the black rhinoceros (Diceros bicornis minor) in... more E M S L I E , R.H. (1999) The feeding ecology of the black rhinoceros (Diceros bicornis minor) in Hluhluwe-Umfolozi Park, with special reference to the probably causes of the Hluhluwe population crash.
Analysis of aerial photographs indicates that woody plant biomass has rapidly increased in Hluhlu... more Analysis of aerial photographs indicates that woody plant biomass has rapidly increased in Hluhluwe Game Reserve over the last 40 years. Open Acacia nilotica savanna is being replaced by broadleaf species, especially Euclea spp. We were interested in whether this secondary successional shift was due to high numbers of seedlings establishing and growing to maturity under acacias (facilitation) or due to the release of already established, but suppressed individuals ('gullivers') of the resprouting broadleaf species. We examined the recruitment patterns and size-class distributions (height, basal diameter) of important species in this savanna.
1999: The influence of ornithogenic products on the nutrient status of soils surrounding nests in... more 1999: The influence of ornithogenic products on the nutrient status of soils surrounding nests in nunataks in Dronning Maud Land, Antarctica. Polar
Abstract Breeding snow petrels (Pagodroma nivea) may be a major source of nutrients for the ecosy... more Abstract Breeding snow petrels (Pagodroma nivea) may be a major source of nutrients for the ecosystems on the inland nunataks (mountain outcrops) of continental Antarctica. To test this theory, the δ 15 N and δ 13 C values of soil and plants (moss, lichen and algae) from 11 nunataks with and without breeding snow petrels in northwestern Dronning Maud Land were compared. High δ 15 N values in all samples from nunataks with breeding birds provide a strong indication of the presence of breeding birds, as well as the use of bird- ...
A designação de entidades geográficas neste livro e a apresentação do material, não refletem qual... more A designação de entidades geográficas neste livro e a apresentação do material, não refletem qualquer opinião por parte da UICN ou de qualquer das organizações financiadoras, em relação ao estatuto legal de um paÃs, território ou área, ou das suas autoridades, ou em relação á delimitação das suas fronteiras ou limites geográficos.
... Service PO Box 30 Kwale, Kenya Esmond Bradley Martin PO Box 15510, Mbagathi 00503 Nairobi, Ke... more ... Service PO Box 30 Kwale, Kenya Esmond Bradley Martin PO Box 15510, Mbagathi 00503 Nairobi, Kenya John Mason Nature ... Cornelio Ntumi Department of Biological Sciences University of Eduardo Mondlane Maputo CP 257, Mozambique Patrick Omondi Kenya Wildlife ...
The Critically Endangered black rhinoceros Diceros bicornis occurs mainly in protected areas. Hlu... more The Critically Endangered black rhinoceros Diceros bicornis occurs mainly in protected areas. Hluhluwe-Umfolozi Park, South Africa, contains a key source population for black rhino conservation, and declining population productivity has been attributed to negative habitat changes and a reduction in carrying capacity. As home range increase may be an index of declining habitat quality we determined the home ranges of the black rhino in the Park and compared these ranges with previous estimates. The average size of the home ranges during 1991-2001 was 23.07 ¡ SE 0.81 km 2 , which is 54% greater than in the 1980s. Sex and the availability of water did not influence home ranges.
E M S L I E , R.H. (1999) The feeding ecology of the black rhinoceros (Diceros bicornis minor) in... more E M S L I E , R.H. (1999) The feeding ecology of the black rhinoceros (Diceros bicornis minor) in Hluhluwe-Umfolozi Park, with special reference to the probably causes of the Hluhluwe population crash.
Analysis of aerial photographs indicates that woody plant biomass has rapidly increased in Hluhlu... more Analysis of aerial photographs indicates that woody plant biomass has rapidly increased in Hluhluwe Game Reserve over the last 40 years. Open Acacia nilotica savanna is being replaced by broadleaf species, especially Euclea spp. We were interested in whether this secondary successional shift was due to high numbers of seedlings establishing and growing to maturity under acacias (facilitation) or due to the release of already established, but suppressed individuals ('gullivers') of the resprouting broadleaf species. We examined the recruitment patterns and size-class distributions (height, basal diameter) of important species in this savanna.
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