Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes 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 vary...
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Online Access: | http://hdl.handle.net/10400.3/4768 https://doi.org/10.1111/ddi.12655 |
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ftunivacores:oai:repositorio.uac.pt:10400.3/4768 2023-05-15T17:35:51+02:00 Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores Rigal, François Cardoso, Pedro Lobo, Jorge M. Triantis, Kostas A. Whittaker, Robert J. Amorim, Isabel R. Borges, Paulo A. V. 2018 http://hdl.handle.net/10400.3/4768 https://doi.org/10.1111/ddi.12655 eng eng Blackwell Publishing info:eu-repo/grantAgreement/FCT/3599-PPCDT/119255/PT Rigal, F., Cardoso, P., Lobo, J.M., Triantis, K.A., Whittaker, R.J., Amorim, I.R. & Borges, P.A.V. (2018). Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores. "Diversity and Distributions", 24(1): 36-47. DOI:10.1111/ddi.12655 1472-4642 http://hdl.handle.net/10400.3/4768 doi:10.1111/ddi.12655 restrictedAccess Arthropods Azores Community Assembly Exotic Species Functional Diversity Indigenous Species article 2018 ftunivacores https://doi.org/10.1111/ddi.12655 2022-05-01T14:31:31Z 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 elements in low-intensity land-uses, while small-bodied spiders dominated exotic elements 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 conclusions: 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 the maintenance of some ecosystem functions. info:eu-repo/semantics/publishedVersion Article in Journal/Newspaper North Atlantic Repositório da Universidade dos Açores Diversity and Distributions 24 1 36 47 |
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Open Polar |
collection |
Repositório da Universidade dos Açores |
op_collection_id |
ftunivacores |
language |
English |
topic |
Arthropods Azores Community Assembly Exotic Species Functional Diversity Indigenous Species |
spellingShingle |
Arthropods Azores Community Assembly Exotic Species Functional Diversity Indigenous Species Rigal, François Cardoso, Pedro Lobo, Jorge M. Triantis, Kostas A. Whittaker, Robert J. Amorim, Isabel R. Borges, Paulo A. V. Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores |
topic_facet |
Arthropods Azores Community Assembly Exotic Species Functional Diversity Indigenous Species |
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 elements in low-intensity land-uses, while small-bodied spiders dominated exotic elements 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 conclusions: 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 the maintenance of some ecosystem functions. info:eu-repo/semantics/publishedVersion |
format |
Article in Journal/Newspaper |
author |
Rigal, François Cardoso, Pedro Lobo, Jorge M. Triantis, Kostas A. Whittaker, Robert J. Amorim, Isabel R. Borges, Paulo A. V. |
author_facet |
Rigal, François Cardoso, Pedro Lobo, Jorge M. Triantis, Kostas A. Whittaker, Robert J. Amorim, Isabel R. Borges, Paulo A. V. |
author_sort |
Rigal, François |
title |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores |
title_short |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores |
title_full |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores |
title_fullStr |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores |
title_full_unstemmed |
Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores |
title_sort |
functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, terceira, azores |
publisher |
Blackwell Publishing |
publishDate |
2018 |
url |
http://hdl.handle.net/10400.3/4768 https://doi.org/10.1111/ddi.12655 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
info:eu-repo/grantAgreement/FCT/3599-PPCDT/119255/PT Rigal, F., Cardoso, P., Lobo, J.M., Triantis, K.A., Whittaker, R.J., Amorim, I.R. & Borges, P.A.V. (2018). Functional traits of indigenous and exotic ground-dwelling arthropods show contrasting responses to land-use changes in an oceanic island, Terceira, Azores. "Diversity and Distributions", 24(1): 36-47. DOI:10.1111/ddi.12655 1472-4642 http://hdl.handle.net/10400.3/4768 doi:10.1111/ddi.12655 |
op_rights |
restrictedAccess |
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_ |
1766135134044553216 |