Persistence of spatial variance and spatial pattern in the abundance of a submerged plant
Organisms usually benefit from heterogeneous conditions, but, by doing so, may reduce the degree of heterogeneity. The question therefore arises how heterogeneity is maintained. We investigated within-year spatiotemporal patterns in a monospecific stand of a submerged plant (fennel pondweed, Potamog...
Published in: | Ecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Ecological Society of America
2008
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Online Access: | https://lup.lub.lu.se/record/1307969 https://doi.org/10.1890/07-974.1 |
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ftulundlup:oai:lup.lub.lu.se:d68d4361-286d-4d87-9669-10bd4605eb02 2023-05-15T15:59:44+02:00 Persistence of spatial variance and spatial pattern in the abundance of a submerged plant Klaassen, Raymond Nolet, Bart A. 2008 https://lup.lub.lu.se/record/1307969 https://doi.org/10.1890/07-974.1 eng eng Ecological Society of America https://lup.lub.lu.se/record/1307969 http://dx.doi.org/10.1890/07-974.1 wos:000261053500001 scopus:63849104227 Ecology; 89(11), pp 2973-2979 (2008) ISSN: 0012-9658 Biological Sciences interactions plant-animal optimal foraging behavior macrophyte heterogeneity herbivory Cygnus columbianus bewickii density dependence vegetation patterns Potamogeton pectinatus spatial scale contributiontojournal/article info:eu-repo/semantics/article text 2008 ftulundlup https://doi.org/10.1890/07-974.1 2023-02-01T23:26:48Z Organisms usually benefit from heterogeneous conditions, but, by doing so, may reduce the degree of heterogeneity. The question therefore arises how heterogeneity is maintained. We investigated within-year spatiotemporal patterns in a monospecific stand of a submerged plant (fennel pondweed, Potamogeton pectinatus), with the novelty that we distinguished between different forms of heterogeneity: spatial variance (the frequency distribution of densities) and spatial pattern (the spatial distribution of densities). We repeatedly measured plant biomass that was affected by swan predation, winter mortality, and summer regrowth. Spatial variance was enhanced mostly by swan foraging, despite the fact that swans appear to exploit patches to the same threshold level. Spatial pattern, which had vanished after swan foraging, reestablished due to spatial pattern in winter mortality and was further enhanced by plant regrowth. We found that variance and pattern each have their own temporal dynamics and are maintained by different biological processes. We therefore advocate that it is pivotal to distinguish between variance and pattern in the study of spatial heterogeneity. Article in Journal/Newspaper Cygnus columbianus Lund University Publications (LUP) Ecology 89 11 2973 2979 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Biological Sciences interactions plant-animal optimal foraging behavior macrophyte heterogeneity herbivory Cygnus columbianus bewickii density dependence vegetation patterns Potamogeton pectinatus spatial scale |
spellingShingle |
Biological Sciences interactions plant-animal optimal foraging behavior macrophyte heterogeneity herbivory Cygnus columbianus bewickii density dependence vegetation patterns Potamogeton pectinatus spatial scale Klaassen, Raymond Nolet, Bart A. Persistence of spatial variance and spatial pattern in the abundance of a submerged plant |
topic_facet |
Biological Sciences interactions plant-animal optimal foraging behavior macrophyte heterogeneity herbivory Cygnus columbianus bewickii density dependence vegetation patterns Potamogeton pectinatus spatial scale |
description |
Organisms usually benefit from heterogeneous conditions, but, by doing so, may reduce the degree of heterogeneity. The question therefore arises how heterogeneity is maintained. We investigated within-year spatiotemporal patterns in a monospecific stand of a submerged plant (fennel pondweed, Potamogeton pectinatus), with the novelty that we distinguished between different forms of heterogeneity: spatial variance (the frequency distribution of densities) and spatial pattern (the spatial distribution of densities). We repeatedly measured plant biomass that was affected by swan predation, winter mortality, and summer regrowth. Spatial variance was enhanced mostly by swan foraging, despite the fact that swans appear to exploit patches to the same threshold level. Spatial pattern, which had vanished after swan foraging, reestablished due to spatial pattern in winter mortality and was further enhanced by plant regrowth. We found that variance and pattern each have their own temporal dynamics and are maintained by different biological processes. We therefore advocate that it is pivotal to distinguish between variance and pattern in the study of spatial heterogeneity. |
format |
Article in Journal/Newspaper |
author |
Klaassen, Raymond Nolet, Bart A. |
author_facet |
Klaassen, Raymond Nolet, Bart A. |
author_sort |
Klaassen, Raymond |
title |
Persistence of spatial variance and spatial pattern in the abundance of a submerged plant |
title_short |
Persistence of spatial variance and spatial pattern in the abundance of a submerged plant |
title_full |
Persistence of spatial variance and spatial pattern in the abundance of a submerged plant |
title_fullStr |
Persistence of spatial variance and spatial pattern in the abundance of a submerged plant |
title_full_unstemmed |
Persistence of spatial variance and spatial pattern in the abundance of a submerged plant |
title_sort |
persistence of spatial variance and spatial pattern in the abundance of a submerged plant |
publisher |
Ecological Society of America |
publishDate |
2008 |
url |
https://lup.lub.lu.se/record/1307969 https://doi.org/10.1890/07-974.1 |
genre |
Cygnus columbianus |
genre_facet |
Cygnus columbianus |
op_source |
Ecology; 89(11), pp 2973-2979 (2008) ISSN: 0012-9658 |
op_relation |
https://lup.lub.lu.se/record/1307969 http://dx.doi.org/10.1890/07-974.1 wos:000261053500001 scopus:63849104227 |
op_doi |
https://doi.org/10.1890/07-974.1 |
container_title |
Ecology |
container_volume |
89 |
container_issue |
11 |
container_start_page |
2973 |
op_container_end_page |
2979 |
_version_ |
1766395658170793984 |