Analysis of intrinsic evolutionary factors leading to microendemic distributions in New Caledonian leaf beetles
Abstract Microendemicity, or the condition of some species having local ranges, is a relatively common pattern in nature. However, the factors that lead to this pattern are still largely unknown. Most studies addressing this issue tend to focus on extrinsic factors associated with microendemic distr...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-34104-z |
| _version_ | 1797836517169692672 |
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| author | Leonardo Platania Jesús Gómez-Zurita |
| author_facet | Leonardo Platania Jesús Gómez-Zurita |
| author_sort | Leonardo Platania |
| collection | DOAJ |
| description | Abstract Microendemicity, or the condition of some species having local ranges, is a relatively common pattern in nature. However, the factors that lead to this pattern are still largely unknown. Most studies addressing this issue tend to focus on extrinsic factors associated with microendemic distributions, such as environmental conditions, hypothesising a posteriori about underlying potential speciation mechanisms, linked or not to these conditions. Here, we use a multi-faceted approach mostly focusing on intrinsic factors instead, namely diversification dynamics and speciation modes in two endemic sibling genera of leaf beetles with microendemic distributions, Taophila and Tricholapita, in a microendemicity hotspot, New Caledonia. Results suggest that the diversification rate in this lineage slowed down through most of the Neogene and consistently with a protracted speciation model possibly combined with several ecological and environmental factors potentially adding rate-slowing effects through time. In turn, species accumulated following successive allopatric speciation cycles, possibly powered by marked geological and climatic changes in the region in the last 25 million years, with daughter species ranges uncorrelated with the time of speciation. In this case, microendemicity seems to reflect a mature state for the system, rather than a temporary condition for recent species, as suggested for many microendemic organisms. |
| first_indexed | 2024-04-09T15:11:15Z |
| format | Article |
| id | doaj.art-ed4319c26f044d76913d054230d752f8 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T15:11:15Z |
| publishDate | 2023-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-ed4319c26f044d76913d054230d752f82023-04-30T11:14:54ZengNature PortfolioScientific Reports2045-23222023-04-0113111310.1038/s41598-023-34104-zAnalysis of intrinsic evolutionary factors leading to microendemic distributions in New Caledonian leaf beetlesLeonardo Platania0Jesús Gómez-Zurita1Botanical Institute of Barcelona (CSIC-Ajuntament Barcelona)Botanical Institute of Barcelona (CSIC-Ajuntament Barcelona)Abstract Microendemicity, or the condition of some species having local ranges, is a relatively common pattern in nature. However, the factors that lead to this pattern are still largely unknown. Most studies addressing this issue tend to focus on extrinsic factors associated with microendemic distributions, such as environmental conditions, hypothesising a posteriori about underlying potential speciation mechanisms, linked or not to these conditions. Here, we use a multi-faceted approach mostly focusing on intrinsic factors instead, namely diversification dynamics and speciation modes in two endemic sibling genera of leaf beetles with microendemic distributions, Taophila and Tricholapita, in a microendemicity hotspot, New Caledonia. Results suggest that the diversification rate in this lineage slowed down through most of the Neogene and consistently with a protracted speciation model possibly combined with several ecological and environmental factors potentially adding rate-slowing effects through time. In turn, species accumulated following successive allopatric speciation cycles, possibly powered by marked geological and climatic changes in the region in the last 25 million years, with daughter species ranges uncorrelated with the time of speciation. In this case, microendemicity seems to reflect a mature state for the system, rather than a temporary condition for recent species, as suggested for many microendemic organisms.https://doi.org/10.1038/s41598-023-34104-z |
| spellingShingle | Leonardo Platania Jesús Gómez-Zurita Analysis of intrinsic evolutionary factors leading to microendemic distributions in New Caledonian leaf beetles Scientific Reports |
| title | Analysis of intrinsic evolutionary factors leading to microendemic distributions in New Caledonian leaf beetles |
| title_full | Analysis of intrinsic evolutionary factors leading to microendemic distributions in New Caledonian leaf beetles |
| title_fullStr | Analysis of intrinsic evolutionary factors leading to microendemic distributions in New Caledonian leaf beetles |
| title_full_unstemmed | Analysis of intrinsic evolutionary factors leading to microendemic distributions in New Caledonian leaf beetles |
| title_short | Analysis of intrinsic evolutionary factors leading to microendemic distributions in New Caledonian leaf beetles |
| title_sort | analysis of intrinsic evolutionary factors leading to microendemic distributions in new caledonian leaf beetles |
| url | https://doi.org/10.1038/s41598-023-34104-z |
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