Homogenization and miniaturization of habitat structure in temperate marine forests
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Non |
| Statut de publication | : | Publié |
| Année de publication | : | 2021 |
| Auteurs (11) | : | PESSARRODONA A FILBEE-DEXTER Karen ALCOVERRO T BOADA Jordi FEEHAN C,j FREDRIKSEN S GRACE S,p NAKAMURA Y NARVAEZ C,a NORDERHAUG K,m WERNBERG Thomas |
| Revue scientifique | : | Global Change Biology |
| Volume | : | 27 |
| Fascicule | : | 20 |
| Pages | : | 5262-5275 |
| DOI | : | 10.1111/gcb.15759 |
| URL | : | - |
| Abstract | : | Humans are rapidly transforming the structural configuration of the planet's ecosystems, but these changes and their ecological consequences remain poorly quantified in underwater habitats. Here, we show that the loss of forest-forming seaweeds and the rise of ground-covering 'turfs' across four continents consistently resulted in the miniaturization of underwater habitat structure, with seascapes converging towards flattened habitats with smaller habitable spaces. Globally, turf seascapes occupied a smaller architectural trait space and were structurally more similar across regions than marine forests, evidencing habitat homogenization. Surprisingly, such habitat convergence occurred despite turf seascapes consisting of vastly different species richness and with different taxa providing habitat architecture, as well as across disparate drivers of marine forest decline. Turf seascapes contained high sediment loads, with the miniaturization of habitat across 100s of km in mid-Western Australia resulting in reefs retaining an additional similar to 242 million tons of sediment (four orders of magnitude more than the sediments delivered fluvially annually). Together, this work demonstrates that the replacement of marine forests by turfs is a generalizable phenomenon that has profound consequences for the ecology of temperate reefs. |
| Mots-clés | : | algal turf; ALGAL TURFS; CANOPY; climate change; COAST; CORAL-REEF FISHES; DECLINES; DYNAMICS; ECOSYSTEM; epilithic algal matrix; foundation species; habitat change; kelp forests; regime shift; seaweed; SHIFTS; TRANSFORM |
| Commentaire | : | Times Cited in Web of Science Core Collection: 2 |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Pessarrodona A, Filbee-Dexter K, Alcoverro T, Boada J, Feehan CJ, Fredriksen S, Grace SP, Nakamura Y, Narvaez CA, Norderhaug KM, Wernberg T (2021) Homogenization and miniaturization of habitat structure in temperate marine forests. Global Change Biol 27: 5262-5275 | doi: 10.1111/gcb.15759
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