Phenological changes in the southern hemisphere.

Current evidence of phenological responses to recent climate change is substantially biased towards northern hemisphere temperate regions. Given regional differences in climate change, shifts in phenology will not be uniform across the globe, and conclusions drawn from temperate systems in the north...

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Autores principales: Lynda E Chambers, Res Altwegg, Christophe Barbraud, Phoebe Barnard, Linda J Beaumont, Robert J M Crawford, Joel M Durant, Lesley Hughes, Marie R Keatley, Matt Low, Patricia C Morellato, Elvira S Poloczanska, Valeria Ruoppolo, Ralph E T Vanstreels, Eric J Woehler, Anton C Wolfaardt
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Publicado: Public Library of Science (PLoS) 2013
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spelling oai:doaj.org-article:01a801ff4e41428ba22c5adeae9f3d062021-11-18T08:52:56ZPhenological changes in the southern hemisphere.1932-620310.1371/journal.pone.0075514https://doaj.org/article/01a801ff4e41428ba22c5adeae9f3d062013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24098389/?tool=EBIhttps://doaj.org/toc/1932-6203Current evidence of phenological responses to recent climate change is substantially biased towards northern hemisphere temperate regions. Given regional differences in climate change, shifts in phenology will not be uniform across the globe, and conclusions drawn from temperate systems in the northern hemisphere might not be applicable to other regions on the planet. We conduct the largest meta-analysis to date of phenological drivers and trends among southern hemisphere species, assessing 1208 long-term datasets from 89 studies on 347 species. Data were mostly from Australasia (Australia and New Zealand), South America and the Antarctic/subantarctic, and focused primarily on plants and birds. This meta-analysis shows an advance in the timing of spring events (with a strong Australian data bias), although substantial differences in trends were apparent among taxonomic groups and regions. When only statistically significant trends were considered, 82% of terrestrial datasets and 42% of marine datasets demonstrated an advance in phenology. Temperature was most frequently identified as the primary driver of phenological changes; however, in many studies it was the only climate variable considered. When precipitation was examined, it often played a key role but, in contrast with temperature, the direction of phenological shifts in response to precipitation variation was difficult to predict a priori. We discuss how phenological information can inform the adaptive capacity of species, their resilience, and constraints on autonomous adaptation. We also highlight serious weaknesses in past and current data collection and analyses at large regional scales (with very few studies in the tropics or from Africa) and dramatic taxonomic biases. If accurate predictions regarding the general effects of climate change on the biology of organisms are to be made, data collection policies focussing on targeting data-deficient regions and taxa need to be financially and logistically supported.Lynda E ChambersRes AltweggChristophe BarbraudPhoebe BarnardLinda J BeaumontRobert J M CrawfordJoel M DurantLesley HughesMarie R KeatleyMatt LowPatricia C MorellatoElvira S PoloczanskaValeria RuoppoloRalph E T VanstreelsEric J WoehlerAnton C WolfaardtPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 10, p e75514 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Lynda E Chambers
Res Altwegg
Christophe Barbraud
Phoebe Barnard
Linda J Beaumont
Robert J M Crawford
Joel M Durant
Lesley Hughes
Marie R Keatley
Matt Low
Patricia C Morellato
Elvira S Poloczanska
Valeria Ruoppolo
Ralph E T Vanstreels
Eric J Woehler
Anton C Wolfaardt
Phenological changes in the southern hemisphere.
description Current evidence of phenological responses to recent climate change is substantially biased towards northern hemisphere temperate regions. Given regional differences in climate change, shifts in phenology will not be uniform across the globe, and conclusions drawn from temperate systems in the northern hemisphere might not be applicable to other regions on the planet. We conduct the largest meta-analysis to date of phenological drivers and trends among southern hemisphere species, assessing 1208 long-term datasets from 89 studies on 347 species. Data were mostly from Australasia (Australia and New Zealand), South America and the Antarctic/subantarctic, and focused primarily on plants and birds. This meta-analysis shows an advance in the timing of spring events (with a strong Australian data bias), although substantial differences in trends were apparent among taxonomic groups and regions. When only statistically significant trends were considered, 82% of terrestrial datasets and 42% of marine datasets demonstrated an advance in phenology. Temperature was most frequently identified as the primary driver of phenological changes; however, in many studies it was the only climate variable considered. When precipitation was examined, it often played a key role but, in contrast with temperature, the direction of phenological shifts in response to precipitation variation was difficult to predict a priori. We discuss how phenological information can inform the adaptive capacity of species, their resilience, and constraints on autonomous adaptation. We also highlight serious weaknesses in past and current data collection and analyses at large regional scales (with very few studies in the tropics or from Africa) and dramatic taxonomic biases. If accurate predictions regarding the general effects of climate change on the biology of organisms are to be made, data collection policies focussing on targeting data-deficient regions and taxa need to be financially and logistically supported.
format article
author Lynda E Chambers
Res Altwegg
Christophe Barbraud
Phoebe Barnard
Linda J Beaumont
Robert J M Crawford
Joel M Durant
Lesley Hughes
Marie R Keatley
Matt Low
Patricia C Morellato
Elvira S Poloczanska
Valeria Ruoppolo
Ralph E T Vanstreels
Eric J Woehler
Anton C Wolfaardt
author_facet Lynda E Chambers
Res Altwegg
Christophe Barbraud
Phoebe Barnard
Linda J Beaumont
Robert J M Crawford
Joel M Durant
Lesley Hughes
Marie R Keatley
Matt Low
Patricia C Morellato
Elvira S Poloczanska
Valeria Ruoppolo
Ralph E T Vanstreels
Eric J Woehler
Anton C Wolfaardt
author_sort Lynda E Chambers
title Phenological changes in the southern hemisphere.
title_short Phenological changes in the southern hemisphere.
title_full Phenological changes in the southern hemisphere.
title_fullStr Phenological changes in the southern hemisphere.
title_full_unstemmed Phenological changes in the southern hemisphere.
title_sort phenological changes in the southern hemisphere.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/01a801ff4e41428ba22c5adeae9f3d06
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