Colonisation-extinction data for the epiphytic bryophyte Neckera pennata

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Date
2018-11-30T00:00:00Z
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Publisher
Swedish National Data Service
Svensk Nationell Datatjänst
Abstract
Description
Knowledge on the colonization process is important to understand and project future species distributions. The classic method to quantify colonization rates is time-consuming, as it requires recording infrequent colonization events during extensive, repeated surveys. We present the novel ‘dating-based approach’ that requires one complete survey of species occurrence and estimates of subpopulation ages to back-date colonization events. These data allow statistical reconstruction of a virtual, repeated survey to estimate colonization rates in response to environmental covariates or connectivity. With only 30% of survey effort, the dating-based approach provided similar estimates of rate and distance of dispersal of a moss metapopulation as the classic approach relying on long-term surveys. Projections of the number of colonization events during the next 100 years differed by only 2.3% (95%-credible interval: [-1.9%; 7.1%]) between methods. The dating-based approach is applicable across spatial scales and promises enhancing species distribution models with urgently needed quantitative dispersal information.
Ett nytt sätt att beräkna kolonisationshastigheten som kräver 70% mindre arbete finns nu som alternativ till den klassiska metoden som kräver mycket mer fältarbete. En mer utförlig beskrivning finns på den engelska katalogsidan: https://snd.gu.se/en/catalogue/study/snd1073
Keywords
Earth and Related Environmental Sciences, Geovetenskap och miljövetenskap, Natural Sciences, Naturvetenskap, Biological Sciences, Biologi, Public Health, Folkhälsa, politics, politik, Environment and Public Health, Miljö och folkhälsa, Medicine, Medicin, Health, Hälsa, Population Characteristics, Befolkningskarakteristika, Health Occupations, Vårdyrken
Citation
URI
https://doi.org/10.5878/6xjf-ma84
 https://doi.org/10.5878/tj9a-gy80
 https://hdl.handle.net/20.500.12703/5519
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Colonisation-extinction data for the epiphytic bryophyte Neckera pennata