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Disturbance-diversi...
Disturbance-diversity models: what do they really predict and how are they tested?
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- Svensson, J. Robin, 1979 (författare)
- Gothenburg University,Göteborgs universitet,Centrum för marin kemisk ekologi,Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Centre for Marine Chemical Ecology,Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory
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- Lindegarth, Mats, 1965 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory
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- Jonsson, Per R., 1957 (författare)
- Gothenburg University,Göteborgs universitet,Linnécentrum för marin evolutionsbiologi (CEMEB),Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Centrum för marin kemisk ekologi,Linnaeus Centre for Marine Evolutionary Biology (CEMEB),Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory,Centre for Marine Chemical Ecology
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- Pavia, Henrik, 1964 (författare)
- Gothenburg University,Göteborgs universitet,Centrum för marin kemisk ekologi,Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Linnécentrum för marin evolutionsbiologi (CEMEB),Centre for Marine Chemical Ecology,Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory,Linnaeus Centre for Marine Evolutionary Biology (CEMEB)
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(creator_code:org_t)
- 2012-02
- 2012
- Engelska.
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Ingår i: Proceedings of the Royal Society of London. Biological Sciences. - : The Royal Society. - 0962-8452 .- 1471-2954. ; 279:1736, s. 2163-2170
- Relaterad länk:
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https://royalsociety...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The intermediate disturbance hypothesis (IDH) and the dynamic equilibrium model (DEM) are influential theories in ecology. The IDH predicts large species numbers at intermediate levels of disturbance and the DEM predicts that the effect of disturbance depends on the level of productivity. However, various indices of diversity are considered more commonly than the predicted number of species in tests of the hypotheses. This issue reaches beyond the scientific community as the predictions of the IDH and the DEM are used in the management of national parks and reserves. In order to compare responses with disturbance among measures of biodiversity, we used two different approaches of mathematical modelling and conducted an extensive meta-analysis. Two-thirds of the surveyed studies present different results for different diversity measures. Accordingly, the meta-analysis showed a narrow range of negative quadratic regression components for richness, but not evenness. Also, the two models support the IDH and the DEM, respectively, when biodiversity is measured as species richness, but predict evenness to increase with increasing disturbance, for all levels of productivity. Consequently, studies that use compound indices of diversity should present logical arguments, a priori, to why a specific index of diversity should peak in response to disturbance.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
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