Large Herbivore Ecology, Ecosystem Dynamics and ConservationKjell Danell, Roger Bergström, Patrick Duncan, John Pastor Cambridge University Press, 25/05/2006 - 506 páginas Most large herbivores require some type of management within their habitats. Some populations of large herbivores are at the brink of extinction, some are under discussion for reintroduction, whilst others already occur in dense populations causing conflicts with other land use. Large herbivores are the major drivers for forming the shape and function of terrestrial ecosystems. This 2006 book addresses the scientifically based action plans to manage both the large herbivore populations and their habitats worldwide. It covers the processes by which large herbivores not only affect their environment (e.g. grazing) but are affected by it (e.g. nutrient cycling) and the management strategies required. Also discussed are new modeling techniques, which help assess integration processes in a landscape context, as well as assessing the consequences of new developments in the processes of conservation. This book will be essential reading for all involved in the management of both large herbivores and natural resources. |
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Resultados 1-5 de 85
Página 26
... reduction in abundance of C , plants in favour of C4 plants that are less dependent on atmospheric CO2 ; and an ... reduced by 80 % in the Pleistocene . The fact that grazers and mixed - feeders became dominant is in agreement with ...
... reduction in abundance of C , plants in favour of C4 plants that are less dependent on atmospheric CO2 ; and an ... reduced by 80 % in the Pleistocene . The fact that grazers and mixed - feeders became dominant is in agreement with ...
Página 56
... reduced food resource . Density affects vital rates in a certain order : first juvenile survival is affected , then age at first reproduction , reproductive rates of adults , and finally adult survival . Juvenile survival also varies ...
... reduced food resource . Density affects vital rates in a certain order : first juvenile survival is affected , then age at first reproduction , reproductive rates of adults , and finally adult survival . Juvenile survival also varies ...
Página 62
... reduce preferred food plants during the summer. In an exclosure experiment in northern Norway, reindeer grazing ... reduction in plant size and in flowering for at least two years after grazing in Oxytropis viscida on Banks Island ...
... reduce preferred food plants during the summer. In an exclosure experiment in northern Norway, reindeer grazing ... reduction in plant size and in flowering for at least two years after grazing in Oxytropis viscida on Banks Island ...
Página 63
... reduced total biomass to only 1 % -20 % of the biomass in lightly grazed areas ( Helle & Aspi 1983 ) . Muskox on Devon Island , Canada , removed 15 % of the net annual production on the winter ranges , which is an order of magnitude ...
... reduced total biomass to only 1 % -20 % of the biomass in lightly grazed areas ( Helle & Aspi 1983 ) . Muskox on Devon Island , Canada , removed 15 % of the net annual production on the winter ranges , which is an order of magnitude ...
Página 64
... reduced grazing time and increased energy expenditure (Weladji et al. 2003). Changes in plant phenology and plant quality may influence habitat use and migration patterns (Mysterud et al. 2003). This may cause destruc- tion of ...
... reduced grazing time and increased energy expenditure (Weladji et al. 2003). Changes in plant phenology and plant quality may influence habitat use and migration patterns (Mysterud et al. 2003). This may cause destruc- tion of ...
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Outras edições - Ver tudo
Large Herbivore Ecology, Ecosystem Dynamics and Conservation Kjell Danell Pré-visualização indisponível - 2006 |
Large Herbivore Ecology, Ecosystem Dynamics and Conservation Kjell Danell,Roger Bergström,Patrick Duncan,John Pastor Pré-visualização indisponível - 2006 |
Palavras e frases frequentes
abundance Acacia American Naturalist animal areas arid availability behaviour Biology biomass bison body mass boreal forests browsers browsing cattle changes climate competition composition Conservation Crawley damage Danell density diet digestive disturbance diversity Ecology and Management ecosystems evolutionary feedbacks feeding fire forage frugivores functional response grass grassland grazing grazing intensity grazing systems growth habitat heavy grazing herbivore populations Hobbs Illius impact increase influence intake rate interactions Journal of Ecology landscape large carnivores large herbivores large mammalian herbivores litter mammals McNaughton models moose National Park nitrogen nitrogen cycling nutrient cycling Oecologia Oikos Olff Pastor patterns plant community plant species population density population dynamics predation prey processes production rangelands red deer reduced regeneration reindeer roe deer savanna scales Scots pine season seed predation seedlings selection Serengeti shrubs soil spatial heterogeneity structure studies trampling tree species tropical ungulates urine patches variability white-tailed deer Wildlife winter woodland Yellowstone
Passagens conhecidas
Página 268 - Moore. 1994. Southwestern ponderosa forest structure: changes since EuroAmerican settlement.