Cargando…

What Story Does Geographic Separation of Insular Bats Tell? A Case Study on Sardinian Rhinolophids

Competition may lead to changes in a species’ environmental niche in areas of sympatry and shifts in the niche of weaker competitors to occupy areas where stronger ones are rarer. Although mainland Mediterranean (Rhinolophus euryale) and Mehely’s (R. mehelyi) horseshoe bats mitigate competition by h...

Descripción completa

Detalles Bibliográficos
Autores principales: Russo, Danilo, Di Febbraro, Mirko, Rebelo, Hugo, Mucedda, Mauro, Cistrone, Luca, Agnelli, Paolo, De Pasquale, Pier Paolo, Martinoli, Adriano, Scaravelli, Dino, Spilinga, Cristiano, Bosso, Luciano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4207767/
https://www.ncbi.nlm.nih.gov/pubmed/25340737
http://dx.doi.org/10.1371/journal.pone.0110894
_version_ 1782341028700749824
author Russo, Danilo
Di Febbraro, Mirko
Rebelo, Hugo
Mucedda, Mauro
Cistrone, Luca
Agnelli, Paolo
De Pasquale, Pier Paolo
Martinoli, Adriano
Scaravelli, Dino
Spilinga, Cristiano
Bosso, Luciano
author_facet Russo, Danilo
Di Febbraro, Mirko
Rebelo, Hugo
Mucedda, Mauro
Cistrone, Luca
Agnelli, Paolo
De Pasquale, Pier Paolo
Martinoli, Adriano
Scaravelli, Dino
Spilinga, Cristiano
Bosso, Luciano
author_sort Russo, Danilo
collection PubMed
description Competition may lead to changes in a species’ environmental niche in areas of sympatry and shifts in the niche of weaker competitors to occupy areas where stronger ones are rarer. Although mainland Mediterranean (Rhinolophus euryale) and Mehely’s (R. mehelyi) horseshoe bats mitigate competition by habitat partitioning, this may not be true on resource-limited systems such as islands. We hypothesize that Sardinian R. euryale (SAR) have a distinct ecological niche suited to persist in the south of Sardinia where R. mehelyi is rarer. Assuming that SAR originated from other Italian populations (PES) – mostly allopatric with R. mehelyi – once on Sardinia the former may have undergone niche displacement driven by R. mehelyi. Alternatively, its niche could have been inherited from a Maghrebian source population. We: a) generated Maxent Species Distribution Models (SDM) for Sardinian populations; b) calibrated a model with PES occurrences and projected it to Sardinia to see whether PES niche would increase R. euryale’s sympatry with R. mehelyi; and c) tested for niche similarity between R. mehelyi and PES, PES and SAR, and R. mehelyi and SAR. Finally we predicted R. euryale’s range in Northern Africa both in the present and during the Last Glacial Maximum (LGM) by calibrating SDMs respectively with SAR and PES occurrences and projecting them to the Maghreb. R. mehelyi and PES showed niche similarity potentially leading to competition. According to PES’ niche, R. euryale would show a larger sympatry with R. mehelyi on Sardinia than according to SAR niche. Such niches have null similarity. The current and LGM Maghrebian ranges of R. euryale were predicted to be wide according to SAR’s niche, negligible according to PES’ niche. SAR’s niche allows R. euryale to persist where R. mehelyi is rarer and competition probably mild. Possible explanations may be competition-driven niche displacement or Maghrebian origin.
format Online
Article
Text
id pubmed-4207767
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-42077672014-10-27 What Story Does Geographic Separation of Insular Bats Tell? A Case Study on Sardinian Rhinolophids Russo, Danilo Di Febbraro, Mirko Rebelo, Hugo Mucedda, Mauro Cistrone, Luca Agnelli, Paolo De Pasquale, Pier Paolo Martinoli, Adriano Scaravelli, Dino Spilinga, Cristiano Bosso, Luciano PLoS One Research Article Competition may lead to changes in a species’ environmental niche in areas of sympatry and shifts in the niche of weaker competitors to occupy areas where stronger ones are rarer. Although mainland Mediterranean (Rhinolophus euryale) and Mehely’s (R. mehelyi) horseshoe bats mitigate competition by habitat partitioning, this may not be true on resource-limited systems such as islands. We hypothesize that Sardinian R. euryale (SAR) have a distinct ecological niche suited to persist in the south of Sardinia where R. mehelyi is rarer. Assuming that SAR originated from other Italian populations (PES) – mostly allopatric with R. mehelyi – once on Sardinia the former may have undergone niche displacement driven by R. mehelyi. Alternatively, its niche could have been inherited from a Maghrebian source population. We: a) generated Maxent Species Distribution Models (SDM) for Sardinian populations; b) calibrated a model with PES occurrences and projected it to Sardinia to see whether PES niche would increase R. euryale’s sympatry with R. mehelyi; and c) tested for niche similarity between R. mehelyi and PES, PES and SAR, and R. mehelyi and SAR. Finally we predicted R. euryale’s range in Northern Africa both in the present and during the Last Glacial Maximum (LGM) by calibrating SDMs respectively with SAR and PES occurrences and projecting them to the Maghreb. R. mehelyi and PES showed niche similarity potentially leading to competition. According to PES’ niche, R. euryale would show a larger sympatry with R. mehelyi on Sardinia than according to SAR niche. Such niches have null similarity. The current and LGM Maghrebian ranges of R. euryale were predicted to be wide according to SAR’s niche, negligible according to PES’ niche. SAR’s niche allows R. euryale to persist where R. mehelyi is rarer and competition probably mild. Possible explanations may be competition-driven niche displacement or Maghrebian origin. Public Library of Science 2014-10-23 /pmc/articles/PMC4207767/ /pubmed/25340737 http://dx.doi.org/10.1371/journal.pone.0110894 Text en © 2014 Russo 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, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Russo, Danilo
Di Febbraro, Mirko
Rebelo, Hugo
Mucedda, Mauro
Cistrone, Luca
Agnelli, Paolo
De Pasquale, Pier Paolo
Martinoli, Adriano
Scaravelli, Dino
Spilinga, Cristiano
Bosso, Luciano
What Story Does Geographic Separation of Insular Bats Tell? A Case Study on Sardinian Rhinolophids
title What Story Does Geographic Separation of Insular Bats Tell? A Case Study on Sardinian Rhinolophids
title_full What Story Does Geographic Separation of Insular Bats Tell? A Case Study on Sardinian Rhinolophids
title_fullStr What Story Does Geographic Separation of Insular Bats Tell? A Case Study on Sardinian Rhinolophids
title_full_unstemmed What Story Does Geographic Separation of Insular Bats Tell? A Case Study on Sardinian Rhinolophids
title_short What Story Does Geographic Separation of Insular Bats Tell? A Case Study on Sardinian Rhinolophids
title_sort what story does geographic separation of insular bats tell? a case study on sardinian rhinolophids
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4207767/
https://www.ncbi.nlm.nih.gov/pubmed/25340737
http://dx.doi.org/10.1371/journal.pone.0110894
work_keys_str_mv AT russodanilo whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT difebbraromirko whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT rebelohugo whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT muceddamauro whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT cistroneluca whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT agnellipaolo whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT depasqualepierpaolo whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT martinoliadriano whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT scaravellidino whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT spilingacristiano whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids
AT bossoluciano whatstorydoesgeographicseparationofinsularbatstellacasestudyonsardinianrhinolophids