Climatic amplitude is a predictor of geographic range size in Mexican morning glories (<em>Ipomoea</em> L., Convolvulaceae)
Background: Elucidating the determinants of species’ geographic distributions is a fundamental goal of ecology and biogeography, as they can inform about key biological processes, with implications for conservation. Goal: Evaluate whether realized climatic amplitude (a proxy for niche breadth) is...
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| Format: | Article |
| Language: | English |
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Sociedad Botánica de México, A. C.
2023-09-01
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| Series: | Botanical Sciences |
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| Online Access: | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3322 |
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| author | N. Ivalu Cacho Erick C. Deloya Brito Cameron Clay Patrick J. McIntyre Itzel A. Piña-de la Rosa Robert W. Scotland Pablo Muñoz-Rodríguez |
| author_facet | N. Ivalu Cacho Erick C. Deloya Brito Cameron Clay Patrick J. McIntyre Itzel A. Piña-de la Rosa Robert W. Scotland Pablo Muñoz-Rodríguez |
| author_sort | N. Ivalu Cacho |
| collection | DOAJ |
| description | Background: Elucidating the determinants of species’ geographic distributions is a fundamental goal of ecology and biogeography, as they can inform about key biological processes, with implications for conservation.
Goal: Evaluate whether realized climatic amplitude (a proxy for niche breadth) is an ecological correlate of geographic range size in morning glories in Mexico, a highly diverse group of plants of worldwide socio-economic relevance, but still poorly studied.
Methods: Based on a dataset of > 30,000 records of which > 7,000 were manually georeferenced, we calculated geographic range size (using convex hull polygons and buffered occurrence points), and climatic amplitude (using three first axes of Principal Components based on 19 Worldclim variables, and focusing on temperature, precipitation, and seasonality), and explored their relationship using general linear models and phylogenetic generalized least squares.
Results: All models show that climatic amplitude explains a high proportion of variation in geographic range size for our dataset (up to > 69 %). We find no evidence of tradeoffs related to temperature and precipitation niche breadths. Through review of reported records, we update the number of species of Ipomoea reported for Mexico to 178.
Conclusions: Much of the variation in geographic range size in Mexican Ipomoea can be explained by realized climatic amplitude, and this result is not driven by phylogenetic history. We discuss cases where despite large geographic range sizes, narrow climatic amplitudes can signify higher risks for species in the face of changing environments.
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| first_indexed | 2024-03-12T01:31:26Z |
| format | Article |
| id | doaj.art-9a6289868591424a872a71b0edbc9c0e |
| institution | Directory Open Access Journal |
| issn | 2007-4298 2007-4476 |
| language | English |
| last_indexed | 2024-03-12T01:31:26Z |
| publishDate | 2023-09-01 |
| publisher | Sociedad Botánica de México, A. C. |
| record_format | Article |
| series | Botanical Sciences |
| spelling | doaj.art-9a6289868591424a872a71b0edbc9c0e2023-09-12T03:01:24ZengSociedad Botánica de México, A. C.Botanical Sciences2007-42982007-44762023-09-01100110.17129/botsci.3322Climatic amplitude is a predictor of geographic range size in Mexican morning glories (<em>Ipomoea</em> L., Convolvulaceae)N. Ivalu Cacho0Erick C. Deloya Brito1Cameron Clay2Patrick J. McIntyre3Itzel A. Piña-de la Rosa4Robert W. Scotland5Pablo Muñoz-Rodríguez6Instituto de Biología, Universidad Nacional Autónoma de México, CDMXInstituto de Biología, Universidad Nacional Autónoma de México, CDMXInstituto de Biología, Universidad Nacional Autónoma de México, CDMXNatureServe, Western Regional Office, ColoradoInstituto de Biología, Universidad Nacional Autónoma de México, CDMXDepartment of Biology, University of Oxford, OxfordDepartment of Biodiversity, Ecology and Evolution, Faculty of Biological Sciences, Complutense University of Madrid, MadridBackground: Elucidating the determinants of species’ geographic distributions is a fundamental goal of ecology and biogeography, as they can inform about key biological processes, with implications for conservation. Goal: Evaluate whether realized climatic amplitude (a proxy for niche breadth) is an ecological correlate of geographic range size in morning glories in Mexico, a highly diverse group of plants of worldwide socio-economic relevance, but still poorly studied. Methods: Based on a dataset of > 30,000 records of which > 7,000 were manually georeferenced, we calculated geographic range size (using convex hull polygons and buffered occurrence points), and climatic amplitude (using three first axes of Principal Components based on 19 Worldclim variables, and focusing on temperature, precipitation, and seasonality), and explored their relationship using general linear models and phylogenetic generalized least squares. Results: All models show that climatic amplitude explains a high proportion of variation in geographic range size for our dataset (up to > 69 %). We find no evidence of tradeoffs related to temperature and precipitation niche breadths. Through review of reported records, we update the number of species of Ipomoea reported for Mexico to 178. Conclusions: Much of the variation in geographic range size in Mexican Ipomoea can be explained by realized climatic amplitude, and this result is not driven by phylogenetic history. We discuss cases where despite large geographic range sizes, narrow climatic amplitudes can signify higher risks for species in the face of changing environments. https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3322biogeographyconservationecological nichegeographic distributionniche breadthrange size limits |
| spellingShingle | N. Ivalu Cacho Erick C. Deloya Brito Cameron Clay Patrick J. McIntyre Itzel A. Piña-de la Rosa Robert W. Scotland Pablo Muñoz-Rodríguez Climatic amplitude is a predictor of geographic range size in Mexican morning glories (<em>Ipomoea</em> L., Convolvulaceae) Botanical Sciences biogeography conservation ecological niche geographic distribution niche breadth range size limits |
| title | Climatic amplitude is a predictor of geographic range size in Mexican morning glories (<em>Ipomoea</em> L., Convolvulaceae) |
| title_full | Climatic amplitude is a predictor of geographic range size in Mexican morning glories (<em>Ipomoea</em> L., Convolvulaceae) |
| title_fullStr | Climatic amplitude is a predictor of geographic range size in Mexican morning glories (<em>Ipomoea</em> L., Convolvulaceae) |
| title_full_unstemmed | Climatic amplitude is a predictor of geographic range size in Mexican morning glories (<em>Ipomoea</em> L., Convolvulaceae) |
| title_short | Climatic amplitude is a predictor of geographic range size in Mexican morning glories (<em>Ipomoea</em> L., Convolvulaceae) |
| title_sort | climatic amplitude is a predictor of geographic range size in mexican morning glories em ipomoea em l convolvulaceae |
| topic | biogeography conservation ecological niche geographic distribution niche breadth range size limits |
| url | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/3322 |
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