Resilience of seagrass populations to thermal stress does not reflect regional differences in ocean climate

Resilience of seagrass populations to thermal stress does not reflect regional differences in ocean climate

© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 233(2022), 4 vom: 15. Feb., Seite 1657-1666
1. Verfasser: Bennett, Scott (VerfasserIn)
Weitere Verfasser: Alcoverro, Teresa, Kletou, Demetris, Antoniou, Charalampos, Boada, Jordi, Buñuel, Xavier, Cucala, Lidia, Jorda, Gabriel, Kleitou, Periklis, Roca, Guillem, Santana-Garcon, Julia, Savva, Ioannis, Vergés, Adriana, Marbà, Núria
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Posidonia acclimation herbivory local adaptation ocean warming phenotypic plasticity thermal sensitivity
Beschreibung
Zusammenfassung:© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.
The prevalence of local adaptation and phenotypic plasticity among populations is critical to accurately predicting when and where climate change impacts will occur. Currently, comparisons of thermal performance between populations are untested for most marine species or overlooked by models predicting the thermal sensitivity of species to extirpation. Here we compared the ecological response and recovery of seagrass populations (Posidonia oceanica) to thermal stress throughout a year-long translocation experiment across a 2800-km gradient in ocean climate. Transplants in central and warm-edge locations experienced temperatures > 29°C, representing thermal anomalies > 5°C above long-term maxima for cool-edge populations, 1.5°C for central and < 1°C for warm-edge populations. Cool-edge, central and warm-edge populations differed in thermal performance when grown under common conditions, but patterns contrasted with expectations based on thermal geography. Cool-edge populations did not differ from warm-edge populations under common conditions and performed significantly better than central populations in growth and survival. Our findings reveal that thermal performance does not necessarily reflect the thermal geography of a species. We demonstrate that warm-edge populations can be less sensitive to thermal stress than cooler, central populations suggesting that Mediterranean seagrasses have greater resilience to warming than current paradigms suggest
Beschreibung:Date Completed 24.03.2022
Date Revised 31.07.2022
published: Print-Electronic
Dryad: 10.5061/dryad.gb5mkkwq2
Citation Status MEDLINE
ISSN:1469-8137
DOI:10.1111/nph.17885