Plant functional types do not predict biomass responses Blackwell Publishing Ltd to removal and fertilization in Alaskan tussock tundra
1. Plant communities in natural ecosystems are changing and species are being lost due to anthropogenic impacts including global warming and increasing nitrogen (N) deposition. We removed dominant species, combinations of species and entire functional types from Alaskan tussock tundra, in the presen...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.275.4475 2023-05-15T15:44:28+02:00 Plant functional types do not predict biomass responses Blackwell Publishing Ltd to removal and fertilization in Alaskan tussock tundra M. Syndonia Bret-harte Michelle C. Mack Gregory R. Goldsmith Daniel B. Sloan Jennie Demarco Gaius R. Shaver Peter M. Ray Zy Biesinger F. Stuart Chapin The Pennsylvania State University CiteSeerX Archives application/zip http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.275.4475 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.275.4475 Metadata may be used without restrictions as long as the oai identifier remains attached to it. ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/47/ef/J_Ecol_2008_Jul_96(4)_713-726.tar.gz text ftciteseerx 2016-01-07T20:48:22Z 1. Plant communities in natural ecosystems are changing and species are being lost due to anthropogenic impacts including global warming and increasing nitrogen (N) deposition. We removed dominant species, combinations of species and entire functional types from Alaskan tussock tundra, in the presence and absence of fertilization, to examine the effects of non-random species loss on plant interactions and ecosystem functioning. 2. After 6 years, growth of remaining species had compensated for biomass loss due to removal in all treatments except the combined removal of moss, Betula nana and Ledum palustre (MBL), which removed the most biomass. Total vascular plant production returned to control levels in all removal treatments, including MBL. Inorganic soil nutrient availability, as indexed by resins, returned to control levels in all unfertilized removal treatments, except MBL. 3. Although biomass compensation occurred, the species that provided most of the compensating biomass in any given treatment were not from the same functional type (growth form) as the removed species. This provides empirical evidence that functional types based on effect traits are not the same as functional types based on response to perturbation. Calculations based on redistributing N from the removed species to the remaining species suggested that dominant species Text Betula nana Tundra Unknown |
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English |
description |
1. Plant communities in natural ecosystems are changing and species are being lost due to anthropogenic impacts including global warming and increasing nitrogen (N) deposition. We removed dominant species, combinations of species and entire functional types from Alaskan tussock tundra, in the presence and absence of fertilization, to examine the effects of non-random species loss on plant interactions and ecosystem functioning. 2. After 6 years, growth of remaining species had compensated for biomass loss due to removal in all treatments except the combined removal of moss, Betula nana and Ledum palustre (MBL), which removed the most biomass. Total vascular plant production returned to control levels in all removal treatments, including MBL. Inorganic soil nutrient availability, as indexed by resins, returned to control levels in all unfertilized removal treatments, except MBL. 3. Although biomass compensation occurred, the species that provided most of the compensating biomass in any given treatment were not from the same functional type (growth form) as the removed species. This provides empirical evidence that functional types based on effect traits are not the same as functional types based on response to perturbation. Calculations based on redistributing N from the removed species to the remaining species suggested that dominant species |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
M. Syndonia Bret-harte Michelle C. Mack Gregory R. Goldsmith Daniel B. Sloan Jennie Demarco Gaius R. Shaver Peter M. Ray Zy Biesinger F. Stuart Chapin |
spellingShingle |
M. Syndonia Bret-harte Michelle C. Mack Gregory R. Goldsmith Daniel B. Sloan Jennie Demarco Gaius R. Shaver Peter M. Ray Zy Biesinger F. Stuart Chapin Plant functional types do not predict biomass responses Blackwell Publishing Ltd to removal and fertilization in Alaskan tussock tundra |
author_facet |
M. Syndonia Bret-harte Michelle C. Mack Gregory R. Goldsmith Daniel B. Sloan Jennie Demarco Gaius R. Shaver Peter M. Ray Zy Biesinger F. Stuart Chapin |
author_sort |
M. Syndonia Bret-harte |
title |
Plant functional types do not predict biomass responses Blackwell Publishing Ltd to removal and fertilization in Alaskan tussock tundra |
title_short |
Plant functional types do not predict biomass responses Blackwell Publishing Ltd to removal and fertilization in Alaskan tussock tundra |
title_full |
Plant functional types do not predict biomass responses Blackwell Publishing Ltd to removal and fertilization in Alaskan tussock tundra |
title_fullStr |
Plant functional types do not predict biomass responses Blackwell Publishing Ltd to removal and fertilization in Alaskan tussock tundra |
title_full_unstemmed |
Plant functional types do not predict biomass responses Blackwell Publishing Ltd to removal and fertilization in Alaskan tussock tundra |
title_sort |
plant functional types do not predict biomass responses blackwell publishing ltd to removal and fertilization in alaskan tussock tundra |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.275.4475 |
genre |
Betula nana Tundra |
genre_facet |
Betula nana Tundra |
op_source |
ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/47/ef/J_Ecol_2008_Jul_96(4)_713-726.tar.gz |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.275.4475 |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766378851279044608 |