Strong microsite control of seedling recruitment in tundra

The inclusion of environmental variation in studies of recruitment is a prerequisite for realistic predictions of the responses of vegetation to a changing environment. We investigated how seedling recruitment is affected by seed availability and microsite quality along a steep environmental gradien...

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Published in:Oecologia
Main Authors: Graae, Bente J., Ejrnaes, Rasmus, Lang, Simone I., Meineri, Eric, Ibarra, Pablo T., Bruun, Hans Henrik
Format: Article in Journal/Newspaper
Language:English
Published: Springer 2011
Subjects:
Online Access:https://lup.lub.lu.se/record/1986710
https://doi.org/10.1007/s00442-010-1878-8
id ftulundlup:oai:lup.lub.lu.se:41f98199-9853-4d02-b7ed-833e7d684bab
record_format openpolar
spelling ftulundlup:oai:lup.lub.lu.se:41f98199-9853-4d02-b7ed-833e7d684bab 2023-05-15T15:07:22+02:00 Strong microsite control of seedling recruitment in tundra Graae, Bente J. Ejrnaes, Rasmus Lang, Simone I. Meineri, Eric Ibarra, Pablo T. Bruun, Hans Henrik 2011 https://lup.lub.lu.se/record/1986710 https://doi.org/10.1007/s00442-010-1878-8 eng eng Springer https://lup.lub.lu.se/record/1986710 http://dx.doi.org/10.1007/s00442-010-1878-8 wos:000290587600025 scopus:79956045298 pmid:21170749 Oecologia; 166(2), pp 565-576 (2011) ISSN: 1432-1939 Zoology Arctic Alpine Invasibility Microclimate Seed limitation contributiontojournal/article info:eu-repo/semantics/article text 2011 ftulundlup https://doi.org/10.1007/s00442-010-1878-8 2023-02-01T23:26:44Z The inclusion of environmental variation in studies of recruitment is a prerequisite for realistic predictions of the responses of vegetation to a changing environment. We investigated how seedling recruitment is affected by seed availability and microsite quality along a steep environmental gradient in dry tundra. A survey of natural seed rain and seedling density in vegetation was combined with observations of the establishment of 14 species after sowing into intact or disturbed vegetation. Although seed rain density was closely correlated with natural seedling establishment, the experimental seed addition showed that the microsite environment was even more important. For all species, seedling emergence peaked at the productive end of the gradient, irrespective of the adult niches realized. Disturbance promoted recruitment at all positions along the environmental gradient, not just at high productivity. Early seedling emergence constituted the main temporal bottleneck in recruitment for all species. Surprisingly, winter mortality was highest at what appeared to be the most benign end of the gradient. The results highlight that seedling recruitment patterns are largely determined by the earliest stages in seedling emergence, which again are closely linked to microsite quality. A fuller understanding of microsite effects on recruitment with implications for plant community assembly and vegetation change is provided. Article in Journal/Newspaper Arctic Tundra Lund University Publications (LUP) Arctic Fuller ENVELOPE(162.350,162.350,-77.867,-77.867) Oecologia 166 2 565 576
institution Open Polar
collection Lund University Publications (LUP)
op_collection_id ftulundlup
language English
topic Zoology
Arctic
Alpine
Invasibility
Microclimate
Seed limitation
spellingShingle Zoology
Arctic
Alpine
Invasibility
Microclimate
Seed limitation
Graae, Bente J.
Ejrnaes, Rasmus
Lang, Simone I.
Meineri, Eric
Ibarra, Pablo T.
Bruun, Hans Henrik
Strong microsite control of seedling recruitment in tundra
topic_facet Zoology
Arctic
Alpine
Invasibility
Microclimate
Seed limitation
description The inclusion of environmental variation in studies of recruitment is a prerequisite for realistic predictions of the responses of vegetation to a changing environment. We investigated how seedling recruitment is affected by seed availability and microsite quality along a steep environmental gradient in dry tundra. A survey of natural seed rain and seedling density in vegetation was combined with observations of the establishment of 14 species after sowing into intact or disturbed vegetation. Although seed rain density was closely correlated with natural seedling establishment, the experimental seed addition showed that the microsite environment was even more important. For all species, seedling emergence peaked at the productive end of the gradient, irrespective of the adult niches realized. Disturbance promoted recruitment at all positions along the environmental gradient, not just at high productivity. Early seedling emergence constituted the main temporal bottleneck in recruitment for all species. Surprisingly, winter mortality was highest at what appeared to be the most benign end of the gradient. The results highlight that seedling recruitment patterns are largely determined by the earliest stages in seedling emergence, which again are closely linked to microsite quality. A fuller understanding of microsite effects on recruitment with implications for plant community assembly and vegetation change is provided.
format Article in Journal/Newspaper
author Graae, Bente J.
Ejrnaes, Rasmus
Lang, Simone I.
Meineri, Eric
Ibarra, Pablo T.
Bruun, Hans Henrik
author_facet Graae, Bente J.
Ejrnaes, Rasmus
Lang, Simone I.
Meineri, Eric
Ibarra, Pablo T.
Bruun, Hans Henrik
author_sort Graae, Bente J.
title Strong microsite control of seedling recruitment in tundra
title_short Strong microsite control of seedling recruitment in tundra
title_full Strong microsite control of seedling recruitment in tundra
title_fullStr Strong microsite control of seedling recruitment in tundra
title_full_unstemmed Strong microsite control of seedling recruitment in tundra
title_sort strong microsite control of seedling recruitment in tundra
publisher Springer
publishDate 2011
url https://lup.lub.lu.se/record/1986710
https://doi.org/10.1007/s00442-010-1878-8
long_lat ENVELOPE(162.350,162.350,-77.867,-77.867)
geographic Arctic
Fuller
geographic_facet Arctic
Fuller
genre Arctic
Tundra
genre_facet Arctic
Tundra
op_source Oecologia; 166(2), pp 565-576 (2011)
ISSN: 1432-1939
op_relation https://lup.lub.lu.se/record/1986710
http://dx.doi.org/10.1007/s00442-010-1878-8
wos:000290587600025
scopus:79956045298
pmid:21170749
op_doi https://doi.org/10.1007/s00442-010-1878-8
container_title Oecologia
container_volume 166
container_issue 2
container_start_page 565
op_container_end_page 576
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