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Dragonflies community assembly in artificial habitats: Glimpses from field and manipulative experiments
Several factors act on community structure, so determining species composition and abundance patterns. Core processes operating at local scales, such as species-environment matching and species interactions, shape observed assemblages. Artificial habitats (simplified structure) are useful systems fo...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6588213/ https://www.ncbi.nlm.nih.gov/pubmed/31226119 http://dx.doi.org/10.1371/journal.pone.0214127 |
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author | Cerini, Francesco Bologna, Marco A. Vignoli, Leonardo |
author_facet | Cerini, Francesco Bologna, Marco A. Vignoli, Leonardo |
author_sort | Cerini, Francesco |
collection | PubMed |
description | Several factors act on community structure, so determining species composition and abundance patterns. Core processes operating at local scales, such as species-environment matching and species interactions, shape observed assemblages. Artificial habitats (simplified structure) are useful systems for assessing the main factors affecting community composition and disentangling their assembly rules. Drinking troughs (brickwork tanks for free-ranging cattle watering) are widespread in Italy and represent a suitable aquatic habitat for colonization by various aquatic organisms. Dragonflies larvae are usually found in drinking troughs and often exhibit strong species interactions and striking community assembly patterns. Our primary aim was to search for Odonata communities exhibiting non-random co-occurrence/segregation patterns in drinking troughs. We performed null-model analyses by measuring a co-occurrence index (C-score) on larval Odonata assemblages (13 species from 28 distinct troughs). Overall, we found a non-random structure for the studied dragonfly assemblages, which, given their fast generation time, must have been generated by short-term ecological processes (i.e. interspecific interactions). We thus analyzed potential competition/predation among and within ecological guilds. From the field data, we speculated that interactions within the sprawlers’ guild is likely among the main drivers structuring the studied assemblages, especially the effect of intraguild predation between C. erythraea and Sympetrum spp larval stages. We then experimentally tested these interactions in laboratory and demonstrated that intraguild predation among larvae at different development stages may result in an effective exclusion/negative impact on density pattern, representing one of the processes to take into consideration when studying dragonfly assemblages. |
format | Online Article Text |
id | pubmed-6588213 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-65882132019-06-28 Dragonflies community assembly in artificial habitats: Glimpses from field and manipulative experiments Cerini, Francesco Bologna, Marco A. Vignoli, Leonardo PLoS One Research Article Several factors act on community structure, so determining species composition and abundance patterns. Core processes operating at local scales, such as species-environment matching and species interactions, shape observed assemblages. Artificial habitats (simplified structure) are useful systems for assessing the main factors affecting community composition and disentangling their assembly rules. Drinking troughs (brickwork tanks for free-ranging cattle watering) are widespread in Italy and represent a suitable aquatic habitat for colonization by various aquatic organisms. Dragonflies larvae are usually found in drinking troughs and often exhibit strong species interactions and striking community assembly patterns. Our primary aim was to search for Odonata communities exhibiting non-random co-occurrence/segregation patterns in drinking troughs. We performed null-model analyses by measuring a co-occurrence index (C-score) on larval Odonata assemblages (13 species from 28 distinct troughs). Overall, we found a non-random structure for the studied dragonfly assemblages, which, given their fast generation time, must have been generated by short-term ecological processes (i.e. interspecific interactions). We thus analyzed potential competition/predation among and within ecological guilds. From the field data, we speculated that interactions within the sprawlers’ guild is likely among the main drivers structuring the studied assemblages, especially the effect of intraguild predation between C. erythraea and Sympetrum spp larval stages. We then experimentally tested these interactions in laboratory and demonstrated that intraguild predation among larvae at different development stages may result in an effective exclusion/negative impact on density pattern, representing one of the processes to take into consideration when studying dragonfly assemblages. Public Library of Science 2019-06-21 /pmc/articles/PMC6588213/ /pubmed/31226119 http://dx.doi.org/10.1371/journal.pone.0214127 Text en © 2019 Cerini et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Cerini, Francesco Bologna, Marco A. Vignoli, Leonardo Dragonflies community assembly in artificial habitats: Glimpses from field and manipulative experiments |
title | Dragonflies community assembly in artificial habitats: Glimpses from field and manipulative experiments |
title_full | Dragonflies community assembly in artificial habitats: Glimpses from field and manipulative experiments |
title_fullStr | Dragonflies community assembly in artificial habitats: Glimpses from field and manipulative experiments |
title_full_unstemmed | Dragonflies community assembly in artificial habitats: Glimpses from field and manipulative experiments |
title_short | Dragonflies community assembly in artificial habitats: Glimpses from field and manipulative experiments |
title_sort | dragonflies community assembly in artificial habitats: glimpses from field and manipulative experiments |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6588213/ https://www.ncbi.nlm.nih.gov/pubmed/31226119 http://dx.doi.org/10.1371/journal.pone.0214127 |
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