Evaluating intraspecific variation in insect trait analysis
1. Intraspecific variation plays important roles in ecology and evolution. Yet, information on how species and populations vary remains scarce, particularly for insects and regarding functional traits. This lack of knowledge can be problematic in trait-based ecology because traditional approaches as...
Published in: | Ecological Entomology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | http://hdl.handle.net/2318/1764249 https://doi.org/10.1111/een.12984 |
id |
ftunivtorino:oai:iris.unito.it:2318/1764249 |
---|---|
record_format |
openpolar |
spelling |
ftunivtorino:oai:iris.unito.it:2318/1764249 2023-10-29T02:34:02+01:00 Evaluating intraspecific variation in insect trait analysis Gentile, G Bonelli, S Riva, F Gentile, G Bonelli, S Riva, F 2020 http://hdl.handle.net/2318/1764249 https://doi.org/10.1111/een.12984 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000591169400001 firstpage:1 lastpage:8 numberofpages:8 journal:ECOLOGICAL ENTOMOLOGY http://hdl.handle.net/2318/1764249 doi:10.1111/een.12984 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85096702512 info:eu-repo/semantics/closedAccess Body size body ma functional ecology Raunkiæ ran shortfall variability wingspan info:eu-repo/semantics/article 2020 ftunivtorino https://doi.org/10.1111/een.12984 2023-10-03T22:31:14Z 1. Intraspecific variation plays important roles in ecology and evolution. Yet, information on how species and populations vary remains scarce, particularly for insects and regarding functional traits. This lack of knowledge can be problematic in trait-based ecology because traditional approaches assume negligible intraspecific variation, even for analyses that assess highly variable taxa.2. We measured 291 Arctic fritillary butterflies (Boloria chariclea) to assess the intraspecific variation in one population of this species, evaluating (i) how wingspan of Arctic fritillaries varies in relation to the other species of its community, and (ii) how well wingspan, a measure of body size, predicts weight, a measure of body mass.3. Wingspan of Arctic fritillaries varied between 2.62 and 4.07 cm, with the 95% interval range, including similar to 33% (14/42) of the species in the community, and similar to 30% (84/279) of the butterflies of Canada. The relationship between wingspan and weight was significant (beta(wingspan) = 0.002, SE = 0.0008, P < 0.001), but relatively weak (R-adj(2) = 0.31, F-2,F-288 = 67.82, P < 0.001).4. We discuss our findings in relation to the assumption of species homogeneity and the use of proxies in the analysis of species traits, complementing our case study with simulations to illustrate how intraspecific and interspecific variation interact in determining when traditional trait analyses are robust. We suggest entomologists interested in trait analyses should critically evaluate how intraspecific variation could affect their inference, especially when evaluating species that are highly sexually dimorphic, phenotypically plastic, and/or distributed across broad environmental and spatial clines. Article in Journal/Newspaper Arctic Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) Ecological Entomology 46 1 11 18 |
institution |
Open Polar |
collection |
Università degli studi di Torino: AperTo (Archivio Istituzionale ad Accesso Aperto) |
op_collection_id |
ftunivtorino |
language |
English |
topic |
Body size body ma functional ecology Raunkiæ ran shortfall variability wingspan |
spellingShingle |
Body size body ma functional ecology Raunkiæ ran shortfall variability wingspan Gentile, G Bonelli, S Riva, F Evaluating intraspecific variation in insect trait analysis |
topic_facet |
Body size body ma functional ecology Raunkiæ ran shortfall variability wingspan |
description |
1. Intraspecific variation plays important roles in ecology and evolution. Yet, information on how species and populations vary remains scarce, particularly for insects and regarding functional traits. This lack of knowledge can be problematic in trait-based ecology because traditional approaches assume negligible intraspecific variation, even for analyses that assess highly variable taxa.2. We measured 291 Arctic fritillary butterflies (Boloria chariclea) to assess the intraspecific variation in one population of this species, evaluating (i) how wingspan of Arctic fritillaries varies in relation to the other species of its community, and (ii) how well wingspan, a measure of body size, predicts weight, a measure of body mass.3. Wingspan of Arctic fritillaries varied between 2.62 and 4.07 cm, with the 95% interval range, including similar to 33% (14/42) of the species in the community, and similar to 30% (84/279) of the butterflies of Canada. The relationship between wingspan and weight was significant (beta(wingspan) = 0.002, SE = 0.0008, P < 0.001), but relatively weak (R-adj(2) = 0.31, F-2,F-288 = 67.82, P < 0.001).4. We discuss our findings in relation to the assumption of species homogeneity and the use of proxies in the analysis of species traits, complementing our case study with simulations to illustrate how intraspecific and interspecific variation interact in determining when traditional trait analyses are robust. We suggest entomologists interested in trait analyses should critically evaluate how intraspecific variation could affect their inference, especially when evaluating species that are highly sexually dimorphic, phenotypically plastic, and/or distributed across broad environmental and spatial clines. |
author2 |
Gentile, G Bonelli, S Riva, F |
format |
Article in Journal/Newspaper |
author |
Gentile, G Bonelli, S Riva, F |
author_facet |
Gentile, G Bonelli, S Riva, F |
author_sort |
Gentile, G |
title |
Evaluating intraspecific variation in insect trait analysis |
title_short |
Evaluating intraspecific variation in insect trait analysis |
title_full |
Evaluating intraspecific variation in insect trait analysis |
title_fullStr |
Evaluating intraspecific variation in insect trait analysis |
title_full_unstemmed |
Evaluating intraspecific variation in insect trait analysis |
title_sort |
evaluating intraspecific variation in insect trait analysis |
publishDate |
2020 |
url |
http://hdl.handle.net/2318/1764249 https://doi.org/10.1111/een.12984 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000591169400001 firstpage:1 lastpage:8 numberofpages:8 journal:ECOLOGICAL ENTOMOLOGY http://hdl.handle.net/2318/1764249 doi:10.1111/een.12984 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85096702512 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/een.12984 |
container_title |
Ecological Entomology |
container_volume |
46 |
container_issue |
1 |
container_start_page |
11 |
op_container_end_page |
18 |
_version_ |
1781056398156627968 |