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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Página 22
... diet of the species (Janis 1988). Species whose diet is principally monocotyledons are classified as grazers; species with 90% dicotyledons (i.e. tree and shrub foliage, including herbaceous dicotyledons, or fruit eaters) in their diet ...
... diet of the species (Janis 1988). Species whose diet is principally monocotyledons are classified as grazers; species with 90% dicotyledons (i.e. tree and shrub foliage, including herbaceous dicotyledons, or fruit eaters) in their diet ...
Página 26
... dietary types then de- creased , in particular browsers , which were reduced by 80 % in the Pleistocene . The fact that grazers and mixed - feeders became dominant is in agreement with the change in habitat structure . The change in the ...
... dietary types then de- creased , in particular browsers , which were reduced by 80 % in the Pleistocene . The fact that grazers and mixed - feeders became dominant is in agreement with the change in habitat structure . The change in the ...
Página 33
... diet, with high fibre, silicates and soil on the surface of leaves, i.e. plants growing in open areas. This suggests that the way food is processed in the mouth in relation to its structure (e.g. Large herbivores across biomes 33.
... diet, with high fibre, silicates and soil on the surface of leaves, i.e. plants growing in open areas. This suggests that the way food is processed in the mouth in relation to its structure (e.g. Large herbivores across biomes 33.
Página 35
... diet, medium-crowned teeth are termed mesodont and are those belonging to mixed-feeders (Janis et al. 2002). The hypsodonty index appears to be a good indicator of the broad feeding types, but also of the increase in abrasive particles ...
... diet, medium-crowned teeth are termed mesodont and are those belonging to mixed-feeders (Janis et al. 2002). The hypsodonty index appears to be a good indicator of the broad feeding types, but also of the increase in abrasive particles ...
Página 41
... diet types . Litter size varies little among ungulates ( between 1 and 3 , Suidae excluded ) , with about 80 % of cervids and bovids being monotocous on a regular basis . Some species can produce twins when environmental conditions are ...
... diet types . Litter size varies little among ungulates ( between 1 and 3 , Suidae excluded ) , with about 80 % of cervids and bovids being monotocous on a regular basis . Some species can produce twins when environmental conditions are ...
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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.