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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.16076
|2 doi
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|a pubmed24n1117.xml
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|a (DE-627)NLM335219373
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|a (NLM)34986509
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Wilkins, Kayla
|e verfasserin
|4 aut
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| 245 |
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|a Ecological thresholds under atmospheric nitrogen deposition for 1200 herbaceous species and 24 communities across the United States
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 13.04.2022
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|a Date Revised 02.04.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2022 John Wiley & Sons Ltd.
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|a Nitrogen (N) emissions and atmospheric deposition have increased significantly during the last century and become a stressor for many N-sensitive plant species. Understanding individual and community herbaceous plant species thresholds to atmospheric N deposition can inform emissions reduction policy. Here, we present results using Threshold Indicator Taxa Analysis (TITAN) applied to more than 1200 unique plant species and 24 vegetation communities (i.e., alliances) across the United States (US) to assess vulnerability to N deposition. Alliance-level thresholds (change points) for species decreasing in abundance along the gradient ranged from 1.8 to 14.3 kg N ha─1 year─1 and tended to be lower in the west than the east, which suggests that eastern communities, where N deposition has been historically higher, may have already lost many sensitive species. For the species that were present in more than one alliance, over half had a variable response to the N deposition gradient, suggesting that local factors affect vulnerability. Significant progress has been made during the past 30 years to reduce N emissions, which has reduced the percentage of plots at risk to N deposition from 72% to 35%. Nevertheless, over a third of plots remain at risk, and an average reduction of N deposition of 20% would protect half of the plots where N deposition exceeds community thresholds. Furthermore, the alliance- and species-level change points determined in this study may be used to inform N critical loads
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|a Journal Article
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|a Threshold Indicator Taxa Analysis (TITAN)
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|a air quality
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4 |
|a alliances
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|a change point
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| 650 |
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|a critical loads
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| 650 |
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|a percent cover
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| 650 |
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4 |
|a plant biodiversity
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
1 |
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|a Clark, Christopher
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Aherne, Julian
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 28(2022), 7 vom: 01. Apr., Seite 2381-2395
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:28
|g year:2022
|g number:7
|g day:01
|g month:04
|g pages:2381-2395
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|u http://dx.doi.org/10.1111/gcb.16076
|3 Volltext
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