التفاصيل البيبلوغرافية
| العنوان: |
Lack of long-term acclimation in Antarctic encrusting species suggests vulnerability to warming. |
| المؤلفون: |
Clark, Melody S., Peck, Lloyd S., Villota Nieva, Leyre, Hoffman, Joseph I., Davies, Andrew J., Trivedi, Urmi H., Turner, Frances, Ashton, Gail V. |
| المصدر: |
Nature Communications; 7/29/2019, Vol. 10 Issue 1, pN.PAG-N.PAG, 1p |
| مصطلحات موضوعية: |
BENTHIC ecology, FOULING, ECOSYSTEM health, CLIMATE change |
| مصطلحات جغرافية: |
ANTARCTICA |
| مستخلص: |
Marine encrusting communities play vital roles in benthic ecosystems and have major economic implications with regards to biofouling. However, their ability to persist under projected warming scenarios remains poorly understood and is difficult to study under realistic conditions. Here, using heated settlement panel technologies, we show that after 18 months Antarctic encrusting communities do not acclimate to either +1 °C or +2 °C above ambient temperatures. There is significant up-regulation of the cellular stress response in warmed animals, their upper lethal temperatures decline with increasing ambient temperature and population genetic analyses show little evidence of differential survival of genotypes with treatment. By contrast, biofilm bacterial communities show no significant differences in community structure with temperature. Thus, metazoan and bacterial responses differ dramatically, suggesting that ecosystem responses to future climate change are likely to be far more complex than previously anticipated. Genetic adaptation and physiological acclimation can potentially buffer species against climate change. Here, the authors perform a long-term warming experiment of Antarctic encrusting communities and show that focal animal species failed to acclimate and lacked genetic variation in tolerance to warming. [ABSTRACT FROM AUTHOR] |
|
Copyright of Nature Communications is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder