Correlations between plant climate optima across different spatial scales

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Dahlberg, C. JohanStockholms universitet,Institutionen för ekologi, miljö och botanik (författare)

Correlations between plant climate optima across different spatial scales

Artikel/kapitelEngelska2020

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Elsevier BV,2020
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LIBRIS-ID:oai:DiVA.org:su-179548
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-179548URI
https://doi.org/10.1016/j.envexpbot.2019.103899DOI

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Språk:engelska
Sammanfattning på:engelska

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Identifying the factors determining the abundance and distribution of species is a fundamental question in ecology. One key issue is how similar the factors determining species' distributions across spatial scales are (here we focus especially on spatial extents). If the factors are similar across extents, then the large scale distribution pattern of a species may provide information about its local habitat requirements, and vice versa. We assessed the relationships between landscape and national optima as well as landscape and continental optima for growing degree days, maximum temperature and minimum temperature for 96 bryophytes and 50 vascular plants. For this set of species, we derived landscape optima from abundance weighted temperature data using species inventories in central Sweden and a fine-grained temperature model (50 m), national optima from niche centroid modelling based on GBIF data from Sweden and the same fine-grained climate model, and continental optima using the same method as for the national optima but from GBIF data from Europe and Worldclim temperatures (c. 1000 m). The landscape optima of all species were positively correlated with national as well as continental optima for maximum temperature (r = 0.45 and 0.46, respectively), weakly so for growing degree days (r = 0.30 and r = 0.28), but sometimes absent for minimum temperature (r = 0.26 and r = 0.04). The regression slopes of national or continental optima on local optima did not differ between vascular plants and bryophytes for GDD and Tmax. However, the relationship between the optima of Tmin differed between groups, being positive in vascular plants but absent in bryophytes. Our results suggest that positive correlations between optima at different spatial scales are present for some climatic variables but not for others. Moreover, our results for vascular plants and bryophytes suggest that correlations might differ between organism groups and depend on the ecology of the focal organisms. This implies that it is not possible to routinely up- or downscale distribution patterns based on environmental correlations, since drivers of distribution patterns might differ across spatial extents.

Ämnesord och genrebeteckningar

NATURVETENSKAP Biologi hsv//swe
NATURAL SCIENCES Biological Sciences hsv//eng
Bryophyte
Climatic optima
Distribution
Microclimate
Spatial scale
Vascular plant

Biuppslag (personer, institutioner, konferenser, titlar ...)

Ehrlén, JohanStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)ehrle (författare)
Christiansen, Ditte MarieStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)dich9390 (författare)
Meineri, Eric (författare)
Hylander, KristofferStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)khyla (författare)
Stockholms universitetInstitutionen för ekologi, miljö och botanik (creator_code:org_t)

Sammanhörande titlar

Ingår i:Environmental and Experimental Botany: Elsevier BV1700098-84721873-7307

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Environmental and Experimental Botany (Sök värdpublikationen i LIBRIS)

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Av författaren/redakt...: Dahlberg, C. Joh ...; Ehrlén, Johan; Christiansen, Di ...; Meineri, Eric; Hylander, Kristo ...

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NATURVETENSKAP: NATURVETENSKAP; och Biologi

Artiklar i publikationen: Environmental an ...

Av lärosätet: Stockholms universitet

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