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dc.contributor.author
Thuiller, Wilfried
dc.contributor.author
Münkemüller, Tamara
dc.contributor.author
Schiffers, Katja H.
dc.contributor.author
Georges, Damien
dc.contributor.author
Dullinger, Stefan
dc.contributor.author
Eckhart, Vincent M.
dc.contributor.author
Edwards, Thomas C.
dc.contributor.author
Gravel, Dominique
dc.contributor.author
Kunstler, Georges
dc.contributor.author
Merow, Cory
dc.contributor.author
Moore, Kara
dc.contributor.author
Piedallu, Christian
dc.contributor.author
Vissault, Steve
dc.contributor.author
Zimmermann, Niklaus E.
dc.contributor.author
Zurell, Damaris
dc.contributor.author
Schurr, Frank M.
dc.date.accessioned
2019-11-28T12:13:09Z
dc.date.available
2017-06-11T15:41:25Z
dc.date.available
2019-11-28T12:13:09Z
dc.date.issued
2014-12
dc.identifier.issn
0906-7590
dc.identifier.issn
1600-0587
dc.identifier.other
10.1111/ecog.00836
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/96913
dc.identifier.doi
10.3929/ethz-b-000096913
dc.description.abstract
Hutchinson defined species' realized niche as the set of environmental conditions in which populations can persist in the presence of competitors. In terms of demography, the realized niche corresponds to the environments where the intrinsic growth rate (r) of populations is positive. Observed species occurrences should reflect the realized niche when additional processes like dispersal and local extinction lags do not have overwhelming effects. Despite the foundational nature of these ideas, quantitative assessments of the relationship between range‐wide demographic performance and occurrence probability have not been made. This assessment is needed both to improve our conceptual understanding of species' niches and ranges and to develop reliable mechanistic models of species geographic distributions that incorporate demography and species interactions. The objective of this study is to analyse how demographic parameters (intrinsic growth rate r and carrying capacity K) and population density (N) relate to occurrence probability (P_occ). We hypothesized that these relationships vary with species' competitive ability. Demographic parameters, density, and occurrence probability were estimated for 108 tree species from four temperate forest inventory surveys (Québec, western USA, France and Switzerland). We used published information of shade tolerance as indicators of light competition strategy, assuming that high tolerance denotes high competitive capacity in stable forest environments. Interestingly, relationships between demographic parameters and occurrence probability did not vary substantially across degrees of shade tolerance and regions. Although they were influenced by the uncertainty in the estimation of the demographic parameters, we found that r was generally negatively correlated with P_occ, while N, and for most regions K, was generally positively correlated with P_occ. Thus, in temperate forest trees the regions of highest occurrence probability are those with high densities but slow intrinsic population growth rates. The uncertain relationships between demography and occurrence probability suggests caution when linking species distribution and demographic models.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
Does probability of occurrence relate to population dynamics?
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2014-09-23
ethz.journal.title
Ecography
ethz.journal.volume
37
en_US
ethz.journal.issue
12
en_US
ethz.pages.start
1155
en_US
ethz.pages.end
1166
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.nebis
000639155
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2017-06-11T15:41:59Z
ethz.source
ECIT
ethz.identifier.importid
imp593652d900d9590448
ethz.ecitpid
pub:151775
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-12T23:34:27Z
ethz.rosetta.lastUpdated
2019-11-28T12:13:21Z
ethz.rosetta.versionExported
true
ethz.COinS
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