Data from: Effects of spatial scale of sampling on food web structure
This study asks whether the spatial scale of sampling alters structural properties of food webs and whether any differences are attributable to changes in species richness and connectance with scale. Understanding how different aspects of sampling effort affect ecological network structure is import...
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Online Access: | https://doi.org/10.5061/dryad.g1qr6 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::c7c611eb8bd3f778904a4703e2f8d79b 2023-05-15T14:17:59+02:00 Data from: Effects of spatial scale of sampling on food web structure Wood, Spencer A. Russell, Roly Hanson, Dieta Williams, Richard J. Dunne, Jennifer A. 2016-07-22 https://doi.org/10.5061/dryad.g1qr6 undefined unknown Dryad Digital Repository https://dx.doi.org/10.5061/dryad.g1qr6 http://dx.doi.org/10.5061/dryad.g1qr6 lic_creative-commons 10.5061/dryad.g1qr6 oai:easy.dans.knaw.nl:easy-dataset:90340 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:90340 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c complexity diet diversity predation sampling area scale-dependence trophic interactions Sanak Islands Aleutian Islands Alaska Life sciences medicine and health care envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2016 fttriple https://doi.org/10.5061/dryad.g1qr6 2023-01-22T16:52:23Z This study asks whether the spatial scale of sampling alters structural properties of food webs and whether any differences are attributable to changes in species richness and connectance with scale. Understanding how different aspects of sampling effort affect ecological network structure is important for both fundamental ecological knowledge and the application of network analysis in conservation and management. Using a highly resolved food web for the marine intertidal ecosystem of the Sanak Archipelago in the Eastern Aleutian Islands, Alaska, we assess how commonly studied properties of network structure differ for 281 versions of the food web sampled at five levels of spatial scale representing six orders of magnitude in area spread across the archipelago. Species (S) and link (L) richness both increased by approximately one order of magnitude across the five spatial scales. Links per species (L/S) more than doubled, while connectance (C) decreased by approximately two-thirds. Fourteen commonly studied properties of network structure varied systematically with spatial scale of sampling, some increasing and others decreasing. While ecological network properties varied systematically with sampling extent, analyses using the niche model and a power-law scaling relationship indicate that for many properties, this apparent sensitivity is attributable to the increasing S and decreasing C of webs with increasing spatial scale. As long as effects of S and C are accounted for, areal sampling bias does not have a special impact on our understanding of many aspects of network structure. However, attention does need be paid to some properties such as the fraction of species in loops, which increases more than expected with greater spatial scales of sampling. Food web data for the Sanak Islands, AlaskaThe food web data compiled for this study, consisting of 339 quadrats, 39 transects, five sites, four locales, and one archipelago-wide network. The table provides a unique numeric identifier per food web (WebID), the ... Dataset Archipelago Alaska Aleutian Islands Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
complexity diet diversity predation sampling area scale-dependence trophic interactions Sanak Islands Aleutian Islands Alaska Life sciences medicine and health care envir geo |
spellingShingle |
complexity diet diversity predation sampling area scale-dependence trophic interactions Sanak Islands Aleutian Islands Alaska Life sciences medicine and health care envir geo Wood, Spencer A. Russell, Roly Hanson, Dieta Williams, Richard J. Dunne, Jennifer A. Data from: Effects of spatial scale of sampling on food web structure |
topic_facet |
complexity diet diversity predation sampling area scale-dependence trophic interactions Sanak Islands Aleutian Islands Alaska Life sciences medicine and health care envir geo |
description |
This study asks whether the spatial scale of sampling alters structural properties of food webs and whether any differences are attributable to changes in species richness and connectance with scale. Understanding how different aspects of sampling effort affect ecological network structure is important for both fundamental ecological knowledge and the application of network analysis in conservation and management. Using a highly resolved food web for the marine intertidal ecosystem of the Sanak Archipelago in the Eastern Aleutian Islands, Alaska, we assess how commonly studied properties of network structure differ for 281 versions of the food web sampled at five levels of spatial scale representing six orders of magnitude in area spread across the archipelago. Species (S) and link (L) richness both increased by approximately one order of magnitude across the five spatial scales. Links per species (L/S) more than doubled, while connectance (C) decreased by approximately two-thirds. Fourteen commonly studied properties of network structure varied systematically with spatial scale of sampling, some increasing and others decreasing. While ecological network properties varied systematically with sampling extent, analyses using the niche model and a power-law scaling relationship indicate that for many properties, this apparent sensitivity is attributable to the increasing S and decreasing C of webs with increasing spatial scale. As long as effects of S and C are accounted for, areal sampling bias does not have a special impact on our understanding of many aspects of network structure. However, attention does need be paid to some properties such as the fraction of species in loops, which increases more than expected with greater spatial scales of sampling. Food web data for the Sanak Islands, AlaskaThe food web data compiled for this study, consisting of 339 quadrats, 39 transects, five sites, four locales, and one archipelago-wide network. The table provides a unique numeric identifier per food web (WebID), the ... |
format |
Dataset |
author |
Wood, Spencer A. Russell, Roly Hanson, Dieta Williams, Richard J. Dunne, Jennifer A. |
author_facet |
Wood, Spencer A. Russell, Roly Hanson, Dieta Williams, Richard J. Dunne, Jennifer A. |
author_sort |
Wood, Spencer A. |
title |
Data from: Effects of spatial scale of sampling on food web structure |
title_short |
Data from: Effects of spatial scale of sampling on food web structure |
title_full |
Data from: Effects of spatial scale of sampling on food web structure |
title_fullStr |
Data from: Effects of spatial scale of sampling on food web structure |
title_full_unstemmed |
Data from: Effects of spatial scale of sampling on food web structure |
title_sort |
data from: effects of spatial scale of sampling on food web structure |
publisher |
Dryad Digital Repository |
publishDate |
2016 |
url |
https://doi.org/10.5061/dryad.g1qr6 |
genre |
Archipelago Alaska Aleutian Islands |
genre_facet |
Archipelago Alaska Aleutian Islands |
op_source |
10.5061/dryad.g1qr6 oai:easy.dans.knaw.nl:easy-dataset:90340 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:90340 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
https://dx.doi.org/10.5061/dryad.g1qr6 http://dx.doi.org/10.5061/dryad.g1qr6 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.g1qr6 |
_version_ |
1766289774108213248 |