Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming
Udgivelsesdato: November 2009 Soil microorganisms, the central drivers of terrestrial Antarctic ecosystems, are being confronted with increasing temperatures as parts of the continent experience considerable warming. Here we determined short-term temperature dependencies of Antarctic soil bacterial...
Published in: | Global Change Biology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2009
|
Subjects: | |
Online Access: | https://curis.ku.dk/portal/da/publications/temperature-adaptation-of-soil-bacterial-communities-along-an-antarctic-climate-gradient-predicting-responses-to-climate-warming(46ecf020-a53f-11df-928f-000ea68e967b).html https://doi.org/10.1111/j.1365-2486.2009.01959.x |
id |
ftcopenhagenunip:oai:pure.atira.dk:publications/46ecf020-a53f-11df-928f-000ea68e967b |
---|---|
record_format |
openpolar |
spelling |
ftcopenhagenunip:oai:pure.atira.dk:publications/46ecf020-a53f-11df-928f-000ea68e967b 2023-10-25T01:28:48+02:00 Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming Rinnan, Riikka Rousk, Johannes Yergeau, Etienne Kowalchuk, George A. Bååth, Erland 2009 https://curis.ku.dk/portal/da/publications/temperature-adaptation-of-soil-bacterial-communities-along-an-antarctic-climate-gradient-predicting-responses-to-climate-warming(46ecf020-a53f-11df-928f-000ea68e967b).html https://doi.org/10.1111/j.1365-2486.2009.01959.x eng eng info:eu-repo/semantics/restrictedAccess Rinnan , R , Rousk , J , Yergeau , E , Kowalchuk , G A & Bååth , E 2009 , ' Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming ' , Global Change Biology , vol. 15 , no. 11 , pp. 2615–2625 . https://doi.org/10.1111/j.1365-2486.2009.01959.x article 2009 ftcopenhagenunip https://doi.org/10.1111/j.1365-2486.2009.01959.x 2023-09-27T22:58:41Z Udgivelsesdato: November 2009 Soil microorganisms, the central drivers of terrestrial Antarctic ecosystems, are being confronted with increasing temperatures as parts of the continent experience considerable warming. Here we determined short-term temperature dependencies of Antarctic soil bacterial community growth rates, using the leucine incorporation technique, in order to predict future changes in temperature sensitivity of resident soil bacterial communities. Soil samples were collected along a climate gradient consisting of locations on the Antarctic Peninsula (Anchorage Island, 67 °34'S, 68 °08'W), Signy Island (60 °43'S, 45 °38'W) and the Falkland Islands (51 °76'S 59 °03'W). At each location, experimental plots were subjected to warming by open top chambers (OTCs) and paired with control plots on vegetated and fell-field habitats. The bacterial communities were adapted to the mean annual temperature of their environment, as shown by a significant correlation between the mean annual soil temperature and the minimum temperature for bacterial growth ( T min ). Every 1 °C rise in soil temperature was estimated to increase T min by 0.24-0.38 °C. The optimum temperature for bacterial growth varied less and did not have as clear a relationship with soil temperature. Temperature sensitivity, indicated by Q 10 values, increased with mean annual soil temperature, suggesting that bacterial communities from colder regions were less temperature sensitive than those from the warmer regions. The OTC warming (generally <1 °C temperature increases) over 3 years had no effects on temperature relationship of the soil bacterial community. We estimate that the predicted temperature increase of 2.6 °C for the Antarctic Peninsula would increase T min by 0.6-1 °C and Q 10 (0-10 °C) by 0.5 units. Article in Journal/Newspaper Anchorage Island Antarc* Antarctic Antarctic Peninsula Signy Island University of Copenhagen: Research Anchorage Anchorage Island ENVELOPE(-68.214,-68.214,-67.605,-67.605) Antarctic Antarctic Peninsula Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) The Antarctic Global Change Biology 15 11 2615 2625 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
Udgivelsesdato: November 2009 Soil microorganisms, the central drivers of terrestrial Antarctic ecosystems, are being confronted with increasing temperatures as parts of the continent experience considerable warming. Here we determined short-term temperature dependencies of Antarctic soil bacterial community growth rates, using the leucine incorporation technique, in order to predict future changes in temperature sensitivity of resident soil bacterial communities. Soil samples were collected along a climate gradient consisting of locations on the Antarctic Peninsula (Anchorage Island, 67 °34'S, 68 °08'W), Signy Island (60 °43'S, 45 °38'W) and the Falkland Islands (51 °76'S 59 °03'W). At each location, experimental plots were subjected to warming by open top chambers (OTCs) and paired with control plots on vegetated and fell-field habitats. The bacterial communities were adapted to the mean annual temperature of their environment, as shown by a significant correlation between the mean annual soil temperature and the minimum temperature for bacterial growth ( T min ). Every 1 °C rise in soil temperature was estimated to increase T min by 0.24-0.38 °C. The optimum temperature for bacterial growth varied less and did not have as clear a relationship with soil temperature. Temperature sensitivity, indicated by Q 10 values, increased with mean annual soil temperature, suggesting that bacterial communities from colder regions were less temperature sensitive than those from the warmer regions. The OTC warming (generally <1 °C temperature increases) over 3 years had no effects on temperature relationship of the soil bacterial community. We estimate that the predicted temperature increase of 2.6 °C for the Antarctic Peninsula would increase T min by 0.6-1 °C and Q 10 (0-10 °C) by 0.5 units. |
format |
Article in Journal/Newspaper |
author |
Rinnan, Riikka Rousk, Johannes Yergeau, Etienne Kowalchuk, George A. Bååth, Erland |
spellingShingle |
Rinnan, Riikka Rousk, Johannes Yergeau, Etienne Kowalchuk, George A. Bååth, Erland Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming |
author_facet |
Rinnan, Riikka Rousk, Johannes Yergeau, Etienne Kowalchuk, George A. Bååth, Erland |
author_sort |
Rinnan, Riikka |
title |
Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming |
title_short |
Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming |
title_full |
Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming |
title_fullStr |
Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming |
title_full_unstemmed |
Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming |
title_sort |
temperature adaptation of soil bacterial communities along an antarctic climate gradient: predicting responses to climate warming |
publishDate |
2009 |
url |
https://curis.ku.dk/portal/da/publications/temperature-adaptation-of-soil-bacterial-communities-along-an-antarctic-climate-gradient-predicting-responses-to-climate-warming(46ecf020-a53f-11df-928f-000ea68e967b).html https://doi.org/10.1111/j.1365-2486.2009.01959.x |
long_lat |
ENVELOPE(-68.214,-68.214,-67.605,-67.605) ENVELOPE(-45.595,-45.595,-60.708,-60.708) |
geographic |
Anchorage Anchorage Island Antarctic Antarctic Peninsula Signy Island The Antarctic |
geographic_facet |
Anchorage Anchorage Island Antarctic Antarctic Peninsula Signy Island The Antarctic |
genre |
Anchorage Island Antarc* Antarctic Antarctic Peninsula Signy Island |
genre_facet |
Anchorage Island Antarc* Antarctic Antarctic Peninsula Signy Island |
op_source |
Rinnan , R , Rousk , J , Yergeau , E , Kowalchuk , G A & Bååth , E 2009 , ' Temperature adaptation of soil bacterial communities along an Antarctic climate gradient: predicting responses to climate warming ' , Global Change Biology , vol. 15 , no. 11 , pp. 2615–2625 . https://doi.org/10.1111/j.1365-2486.2009.01959.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1365-2486.2009.01959.x |
container_title |
Global Change Biology |
container_volume |
15 |
container_issue |
11 |
container_start_page |
2615 |
op_container_end_page |
2625 |
_version_ |
1780728652664668160 |