| Title: | Marginality indices for biodiversity conservation in forest trees |
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| Authors: | ID Picard, Nicolas (Author)
ID Marchi, Maurizio (Author)
ID Serra-Varela, Maria Jesus (Author)
ID Westergren, Marjana (Author)
ID Cavers, Stephen (Author)
ID Notivol, Eduardo (Author)
ID Piotti, Andrea (Author)
ID Alizoti, Paraskevi (Author)
ID Bozzano, Michele (Author)
ID González-Martínez, Santiago C. (Author), et al. |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S1470160X22008408
 PDF - Presentation file, download (1,46 MB)
MD5: 24A5926BA8A6D1D2DC97C06780E7AB47
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  SciVie - Slovenian Forestry Institute
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| Abstract: | Marginal and peripheral populations are important for biodiversity conservation. Their original situation in a species’ geographic and ecological space often confers them genetic diversity and traits of high adaptive value. Yet theoretical hypotheses related to marginality are difficult to test because of confounding factors that influence marginality, namely environment, geography, and history. There is an urgent need to develop metrics to disentangle these confounding factors. We designed nine quantitative indices of marginality and peripherality that define where margins lie within species distributions, from a geographical, an environmental and a historical perspective. Using the distribution maps of eight European forest tree species, we assessed whether these indices were idiosyncratic or whether they conveyed redundant information. Using a database on marginal and peripheral populations based on expert knowledge, we assessed the capacity of the indices to predict the marginality status of a population. There was no consistent pattern of correlation between indices across species, confirming that the indices conveyed different information related to the specific geometry of the species distributions. Contrasting with this heterogeneity of correlation patterns across species, the relative importance of the indices to predict the marginality status of populations was consistent across species. However, there was still a significant country effect in the marginality status, showing a variation in expert opinion of marginality vis-á-vis the species distribution. The marginality indices that we developed are entirely based on distribution maps and can be used for any species. They pave the way for testing hypotheses related to marginality and peripherality, with important implications in quantitative ecology, genetics, and biodiversity conservation. |
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| Keywords: | centre-periphery hypothesis, environmental indices, geographical indices, migration indices, marginal populations, peripheral populations, in situ genetic conservation |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.01.2022 |
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| Year of publishing: | 2022 |
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| Number of pages: | 11 str. |
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| Numbering: | Vol. 143, art. 109367 |
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| PID: | 20.500.12556/DiRROS-15412  |
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| UDC: | 630*16 |
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| ISSN on article: | 1470-160X |
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| DOI: | 10.1016/j.ecolind.2022.109367 |
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| COBISS.SI-ID: | 119745795 |
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| Note: | Skupno št. avtorjev: 16;
Avtorica iz Slov.: M. Westergren;
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| Publication date in DiRROS: | 07.04.2025 |
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| Views: | 97 |
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| Downloads: | 49 |
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| Metadata: |    |
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PICARD, Nicolas, MARCHI, Maurizio, SERRA-VARELA, Maria Jesus, WESTERGREN, Marjana, CAVERS, Stephen, NOTIVOL, Eduardo, PIOTTI, Andrea, ALIZOTI, Paraskevi, BOZZANO, Michele and GONZÁLEZ-MARTÍNEZ, Santiago C., 2022, Marginality indices for biodiversity conservation in forest trees. Ecological indicators. integrating monitoring, assessment and management [online]. 2022. Vol. 143, no. 109367. [Accessed 21 April 2025]. DOI 10.1016/j.ecolind.2022.109367. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=15412
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