Population collapse of habitat-forming species in the Mediterranean: a long-term study of gorgonian populations affected by recurrent marine heatwaves

被引:34
作者
Gomez-Gras, D. [1 ,2 ]
Linares, C. [2 ]
Lopez-Sanz, A. [1 ]
Amate, R. [1 ]
Ledoux, J. B. [3 ]
Bensoussan, N. [1 ,4 ]
Drap, P. [5 ]
Bianchimani, O. [6 ]
Marschal, C. [7 ,8 ]
Torrents, O. [1 ]
Zuberer, F. [9 ]
Cebrian, E. [10 ,11 ]
Teixido, N. [12 ,13 ]
Zabala, M. [2 ]
Kipson, S. [14 ]
Kersting, D. K. [2 ]
Montero-Serra, I [2 ]
Pages-Escola, M. [2 ]
Medrano, A. [2 ]
Frleta-Valic, M. [1 ]
Dimarchopoulou, D. [15 ,16 ]
Lopez-Sendino, P. [1 ]
Garrabou, J. [1 ,4 ]
机构
[1] Inst Ciencies Mar CSIC, Dept Biol Marina, Barcelona, Spain
[2] Univ Barcelona, Inst Recerca Biodiversitat IRBio, Dept Biol Evolut Ecol & Ciencies Ambientals, Barcelona, Spain
[3] Univ Porto, Ctr Interdisciplinar Invest Marinha & Ambiental, CIIMAR CIMAR, Porto, Portugal
[4] Univ Toulon & Var, Aix Marseille Univ, MIO, CNRS,IRD, Marseille, France
[5] Univ Toulon & Var, Aix Marseille Univ, LIS UMR, CNRS, Marseille, France
[6] Septentr Environm, Marseille, France
[7] Inst Mediterraneen Biodiversite & Ecol Marine & C, Marseille, France
[8] Aix Marseille Univ, Ctr Oceanol Marseille, Stn Marine Endoume, Curs UMR,DIMAR, Marseille, France
[9] Ctr Rech Insulaires & Observ Environm CRIOBE, Papeete, French Polynesi, France
[10] Univ Girona, Fac Ciencies, Inst Ecol Aquat, GR Mar, Girona, Spain
[11] CEAB CSIC Ctr Estudis Avancats Blanes Blanes, Blanes, Spain
[12] Sorbonne Univ, Lab Oceanog Villefranche, CNRS, Villefranche Sur Mer, France
[13] Ischia Marine Ctr, Stn Zool Anton Dohrn, Naples, Italy
[14] Univ Zagreb, Fac Sci, Dept Biol, Zagreb, Croatia
[15] Aristotle Univ Thessaloniki, Sch Biol, Dept Zool, Thessaloniki, Greece
[16] Univ Rhode Isl, Coll Environmentand Life Sci, Dept Fisheries Anim & Vet Sci, Kingston, RI 02881 USA
关键词
Mediterranean sea; population collapse; temperate reefs; marine heatwaves; climate change; gorgonians; MASS MORTALITY EVENT; CORALLIUM-RUBRUM L; RED CORAL; PARAMURICEA-CLAVATA; LIFE-HISTORY; BENTHIC COMMUNITIES; PROTECTED AREAS; RECOVERY; FRANCE; SIZE;
D O I
10.1098/rspb.2021.2384
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Understanding the resilience of temperate reefs to climate change requires exploring the recovery capacity of their habitat-forming species from recurrent marine heatwaves (MHWs). Here, we show that, in a Mediterranean highly enforced marine protected area established more than 40 years ago, habitat-forming octocoral populations that were first affected by a severe MHW in 2003 have not recovered after 15 years. Contrarily, they have followed collapse trajectories that have brought them to the brink of local ecological extinction. Since 2003, impacted populations of the red gorgonian Paramuricea clavata (Risso, 1826) and the red coral Corallium rubrum (Linnaeus, 1758) have followed different trends in terms of size structure, but a similar progressive reduction in density and biomass. Concurrently, recurrent MHWs were observed in the area during the 2003-2018 study period, which may have hindered populations recovery. The studied octocorals play a unique habitat-forming role in the coralligenous assemblages (i.e. reefs endemic to the Mediterranean Sea home to approximately 10% of its species). Therefore, our results underpin the great risk that recurrent MHWs pose for the long-term integrity and functioning of these emblematic temperate reefs.
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页数:10
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