دورية أكاديمية
Warming winters in lakes: Later ice onset promotes consumer overwintering and shapes springtime planktonic food webs.
| العنوان: | Warming winters in lakes: Later ice onset promotes consumer overwintering and shapes springtime planktonic food webs. |
|---|---|
| المؤلفون: | Hébert MP; Department of Biology, McGill University, Montréal, QC H3A 1B1, Canada; mphebert4@gmail.com.; Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada.; Groupe de Recherche Interuniversitaire en Limnologie, QC, Canada., Beisner BE; Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, QC H3C 3P8, Canada.; Groupe de Recherche Interuniversitaire en Limnologie, QC, Canada., Rautio M; Groupe de Recherche Interuniversitaire en Limnologie, QC, Canada.; Département des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada., Fussmann GF; Department of Biology, McGill University, Montréal, QC H3A 1B1, Canada.; Groupe de Recherche Interuniversitaire en Limnologie, QC, Canada. |
| المصدر: | Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2021 Nov 30; Vol. 118 (48). |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: National Academy of Sciences Country of Publication: United States NLM ID: 7505876 Publication Model: Print Cited Medium: Internet ISSN: 1091-6490 (Electronic) Linking ISSN: 00278424 NLM ISO Abbreviation: Proc Natl Acad Sci U S A Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Washington, DC : National Academy of Sciences |
| مواضيع طبية MeSH: | Food Chain* , Ice* , Seasons*, Plankton/*physiology, Animals ; Biomarkers ; Climate ; Climate Change ; Ecosystem ; Eutrophication ; Fresh Water ; Ice Cover ; Lakes ; Linear Models ; Photosynthesis ; Phytoplankton ; Quebec ; Time Factors ; Zooplankton |
| مستخلص: | Global climate warming is causing the loss of freshwater ice around the Northern Hemisphere. Although the timing and duration of ice covers are known to regulate ecological processes in seasonally ice-covered ecosystems, the consequences of shortening winters for freshwater biota are poorly understood owing to the scarcity of under-ice research. Here, we present one of the first in-lake experiments to postpone ice-cover onset (by ≤21 d), thereby extending light availability (by ≤40 d) in early winter, and explicitly demonstrate cascading effects on pelagic food web processes and phenologies. Delaying ice-on elicited a sequence of events from winter to spring: 1) relatively greater densities of algal resources and primary consumers in early winter; 2) an enhanced prevalence of winter-active (overwintering) consumers throughout the ice-covered period, associated with augmented storage of high-quality fats likely due to a longer access to algal resources in early winter; and 3) an altered trophic structure after ice-off, with greater initial springtime densities of overwintering consumers driving stronger, earlier top-down regulation, effectively reducing the spring algal bloom. Increasingly later ice onset may thus promote consumer overwintering, which can confer a competitive advantage on taxa capable of surviving winters upon ice-off; a process that may diminish spring food availability for other consumers, potentially disrupting trophic linkages and energy flow pathways over the subsequent open-water season. In considering a future with warmer winters, these results provide empirical evidence that may help anticipate phenological responses to freshwater ice loss and, more broadly, constitute a case of climate-induced cross-seasonal cascade on realized food web processes. Competing Interests: The authors declare no competing interest. |
| References: | Ecol Appl. 2021 Oct;31(7):e02423. (PMID: 34288209) Ecology. 2016 Apr;97(4):1081. (PMID: 28792594) Glob Chang Biol. 2017 Jun;23(6):2179-2196. (PMID: 28132408) Ecol Lett. 2006 Jun;9(6):683-93. (PMID: 16706913) Sci Rep. 2017 Sep 14;7(1):11543. (PMID: 28912552) Int J Biometeorol. 2011 Nov;55(6):805-17. (PMID: 21509461) Ecol Lett. 2017 Jan;20(1):98-111. (PMID: 27889953) Sci Rep. 2016 Apr 26;6:25061. (PMID: 27113125) Lipids. 2017 Jan;52(1):83-91. (PMID: 27981494) Limnol Oceanogr. 2021 Feb;66(2):481-495. (PMID: 33776144) Glob Chang Biol. 2021 Oct;27(19):4615-4629. (PMID: 34241940) Science. 2000 Sep 8;289(5485):1743-6. (PMID: 10976066) Ecol Lett. 2021 Aug;24(8):1709-1731. (PMID: 34114320) Oecologia. 2007 Jan;150(4):682-98. (PMID: 17024385) Proc Natl Acad Sci U S A. 2021 Nov 30;118(48):. (PMID: 34810251) Nature. 2000 Jan 6;403(6765):74-7. (PMID: 10638754) Glob Chang Biol. 2016 Jan;22(1):284-98. (PMID: 26342133) |
| فهرسة مساهمة: | Keywords: freshwater ice loss; global climate warming; phenology; trophic interactions; winter limnology |
| سلسلة جزيئية: | figshare 10.6084/m9.figshare.16934659.v4 |
| المشرفين على المادة: | 0 (Biomarkers) 0 (Ice) |
| تواريخ الأحداث: | Date Created: 20211123 Date Completed: 20211227 Latest Revision: 20220523 |
| رمز التحديث: | 20231215 |
| مُعرف محوري في PubMed: | PMC8694056 |
| DOI: | 10.1073/pnas.2114840118 |
| PMID: | 34810251 |
| قاعدة البيانات: | MEDLINE |
كن أول من يترك تعليقا!