Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, Terceira, Azores
Aim Land-use change typically goes hand-in-hand with the introduction of exotic species, which mingle with indigenous species to form novel assemblages. Here we compare the functional structure of indigenous and exotic elements of ground-dwelling arthropod assemblages across four land-uses of varyin...
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Online Access: | https://doi.org/10.1111/ddi.12655 https://ora.ox.ac.uk/objects/uuid:fb60572f-5726-4486-9c58-972449d08d62 |
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ftuloxford:oai:ora.ox.ac.uk:uuid:fb60572f-5726-4486-9c58-972449d08d62 2023-05-15T17:36:20+02:00 Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, Terceira, Azores Rigal, F Cardoso, P Lobo, JM Triantis, KA Whittaker, RJ Amorim, IR Borges, PAV 2017-09-04 https://doi.org/10.1111/ddi.12655 https://ora.ox.ac.uk/objects/uuid:fb60572f-5726-4486-9c58-972449d08d62 unknown Wiley doi:10.1111/ddi.12655 https://ora.ox.ac.uk/objects/uuid:fb60572f-5726-4486-9c58-972449d08d62 https://doi.org/10.1111/ddi.12655 info:eu-repo/semantics/openAccess Journal article 2017 ftuloxford https://doi.org/10.1111/ddi.12655 2022-06-28T20:28:43Z Aim Land-use change typically goes hand-in-hand with the introduction of exotic species, which mingle with indigenous species to form novel assemblages. Here we compare the functional structure of indigenous and exotic elements of ground-dwelling arthropod assemblages across four land-uses of varying management intensity. Location Terceira Island (Azores, North Atlantic). Methods We used pitfall traps to sample arthropods in 36 sites across the four land-uses and collated traits related to dispersal ability, body size and resource-use. For both indigenous and exotic species, we examined the impact of land-uses on trait diversity and tested for the existence of non-random assembly processes using null models. We analysed differences in trait composition among land-uses for both indigenous and exotic species with multivariate analyses. We used point-biserial correlations to identity traits significantly correlated with specific land-uses for each element. Results We recorded 86 indigenous and 116 exotic arthropod species. Under high intensity land-use, both indigenous and exotic elements showed significant trait clustering. Trait composition strongly shifted across land-uses, with indigenous and exotic species being functionally dissimilar in all land-uses. Large-bodied herbivores dominated exotic species in low intensity land-uses, while small-bodied spiders dominated exotics in high intensity land-uses. In contrast, with increasing land-use intensity, indigenous species changed from functionally diverse to being dominated by piercing and cutting herbivores. Main conclusion Our study revealed two main findings: first, in high intensity land-uses, trait clustering characterized both indigenous and exotic elements; second, exotic species differed in their functional profile from indigenous species in all land-use types. Overall, our results provide new insights into the functional role of exotic species in a land-use context, suggesting that, in agricultural landscape, exotic species may contribute positively to ... Article in Journal/Newspaper North Atlantic ORA - Oxford University Research Archive Diversity and Distributions 24 1 36 47 |
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Open Polar |
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ORA - Oxford University Research Archive |
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ftuloxford |
language |
unknown |
description |
Aim Land-use change typically goes hand-in-hand with the introduction of exotic species, which mingle with indigenous species to form novel assemblages. Here we compare the functional structure of indigenous and exotic elements of ground-dwelling arthropod assemblages across four land-uses of varying management intensity. Location Terceira Island (Azores, North Atlantic). Methods We used pitfall traps to sample arthropods in 36 sites across the four land-uses and collated traits related to dispersal ability, body size and resource-use. For both indigenous and exotic species, we examined the impact of land-uses on trait diversity and tested for the existence of non-random assembly processes using null models. We analysed differences in trait composition among land-uses for both indigenous and exotic species with multivariate analyses. We used point-biserial correlations to identity traits significantly correlated with specific land-uses for each element. Results We recorded 86 indigenous and 116 exotic arthropod species. Under high intensity land-use, both indigenous and exotic elements showed significant trait clustering. Trait composition strongly shifted across land-uses, with indigenous and exotic species being functionally dissimilar in all land-uses. Large-bodied herbivores dominated exotic species in low intensity land-uses, while small-bodied spiders dominated exotics in high intensity land-uses. In contrast, with increasing land-use intensity, indigenous species changed from functionally diverse to being dominated by piercing and cutting herbivores. Main conclusion Our study revealed two main findings: first, in high intensity land-uses, trait clustering characterized both indigenous and exotic elements; second, exotic species differed in their functional profile from indigenous species in all land-use types. Overall, our results provide new insights into the functional role of exotic species in a land-use context, suggesting that, in agricultural landscape, exotic species may contribute positively to ... |
format |
Article in Journal/Newspaper |
author |
Rigal, F Cardoso, P Lobo, JM Triantis, KA Whittaker, RJ Amorim, IR Borges, PAV |
spellingShingle |
Rigal, F Cardoso, P Lobo, JM Triantis, KA Whittaker, RJ Amorim, IR Borges, PAV Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, Terceira, Azores |
author_facet |
Rigal, F Cardoso, P Lobo, JM Triantis, KA Whittaker, RJ Amorim, IR Borges, PAV |
author_sort |
Rigal, F |
title |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, Terceira, Azores |
title_short |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, Terceira, Azores |
title_full |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, Terceira, Azores |
title_fullStr |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, Terceira, Azores |
title_full_unstemmed |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, Terceira, Azores |
title_sort |
functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use change in an oceanic island, terceira, azores |
publisher |
Wiley |
publishDate |
2017 |
url |
https://doi.org/10.1111/ddi.12655 https://ora.ox.ac.uk/objects/uuid:fb60572f-5726-4486-9c58-972449d08d62 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1111/ddi.12655 https://ora.ox.ac.uk/objects/uuid:fb60572f-5726-4486-9c58-972449d08d62 https://doi.org/10.1111/ddi.12655 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/ddi.12655 |
container_title |
Diversity and Distributions |
container_volume |
24 |
container_issue |
1 |
container_start_page |
36 |
op_container_end_page |
47 |
_version_ |
1766135789251461120 |