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Phenological changes and reduced seasonal synchrony in western Poland

Botanical gardens offer continuity for phenological recording in observers, protocols and plant specimens that may not be achievable from other sources. Here, we examine phenological change and synchrony from one such garden in western Poland. We analysed 66 botanical phenophases and 18 interphase i...

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Autores principales: Sparks, Tim H., Górska-Zajączkowska, Maria, Wójtowicz, Wanda, Tryjanowski, Piotr
Formato: Texto
Lenguaje:English
Publicado: Springer-Verlag 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3077753/
https://www.ncbi.nlm.nih.gov/pubmed/20803221
http://dx.doi.org/10.1007/s00484-010-0355-8
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author Sparks, Tim H.
Górska-Zajączkowska, Maria
Wójtowicz, Wanda
Tryjanowski, Piotr
author_facet Sparks, Tim H.
Górska-Zajączkowska, Maria
Wójtowicz, Wanda
Tryjanowski, Piotr
author_sort Sparks, Tim H.
collection PubMed
description Botanical gardens offer continuity for phenological recording in observers, protocols and plant specimens that may not be achievable from other sources. Here, we examine phenological change and synchrony from one such garden in western Poland. We analysed 66 botanical phenophases and 18 interphase intervals recorded between 1977 and 2007 from the Poznań Botanical Garden. These were examined for trends through time and responsiveness to temperature. Furthermore, we derived measures of synchrony for start of spring and end of autumn events to assess if these had changed over time. All 39 events with a mean date before mid-July demonstrated a significant negative relationship with temperature. Where autumn events were significantly related to temperature, they indicated a positive relationship. Typically, spring events showed an advance over time and autumn events a delay. Interphase intervals tended to lengthen over the study period. The measures of synchrony changed significantly over time suggesting less synchrony among spring events and also among autumn events. In combination, these results suggest increases in growing season length. However, responses to a changing climate were species-specific. Thus, the transitions from winter into spring and from autumn into winter are becoming less clearly defined.
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spelling pubmed-30777532011-05-23 Phenological changes and reduced seasonal synchrony in western Poland Sparks, Tim H. Górska-Zajączkowska, Maria Wójtowicz, Wanda Tryjanowski, Piotr Int J Biometeorol Original Paper Botanical gardens offer continuity for phenological recording in observers, protocols and plant specimens that may not be achievable from other sources. Here, we examine phenological change and synchrony from one such garden in western Poland. We analysed 66 botanical phenophases and 18 interphase intervals recorded between 1977 and 2007 from the Poznań Botanical Garden. These were examined for trends through time and responsiveness to temperature. Furthermore, we derived measures of synchrony for start of spring and end of autumn events to assess if these had changed over time. All 39 events with a mean date before mid-July demonstrated a significant negative relationship with temperature. Where autumn events were significantly related to temperature, they indicated a positive relationship. Typically, spring events showed an advance over time and autumn events a delay. Interphase intervals tended to lengthen over the study period. The measures of synchrony changed significantly over time suggesting less synchrony among spring events and also among autumn events. In combination, these results suggest increases in growing season length. However, responses to a changing climate were species-specific. Thus, the transitions from winter into spring and from autumn into winter are becoming less clearly defined. Springer-Verlag 2010-08-29 2011 /pmc/articles/PMC3077753/ /pubmed/20803221 http://dx.doi.org/10.1007/s00484-010-0355-8 Text en © The Author(s) 2010 https://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Original Paper
Sparks, Tim H.
Górska-Zajączkowska, Maria
Wójtowicz, Wanda
Tryjanowski, Piotr
Phenological changes and reduced seasonal synchrony in western Poland
title Phenological changes and reduced seasonal synchrony in western Poland
title_full Phenological changes and reduced seasonal synchrony in western Poland
title_fullStr Phenological changes and reduced seasonal synchrony in western Poland
title_full_unstemmed Phenological changes and reduced seasonal synchrony in western Poland
title_short Phenological changes and reduced seasonal synchrony in western Poland
title_sort phenological changes and reduced seasonal synchrony in western poland
topic Original Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3077753/
https://www.ncbi.nlm.nih.gov/pubmed/20803221
http://dx.doi.org/10.1007/s00484-010-0355-8
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