Climate change affects the distribution of diversity across marine food webs
Thompson, M.S.A.; Couce, E.; Schratzberger, M.; Lynam, C.P. (2023). Climate change affects the distribution of diversity across marine food webs. Glob. Chang. Biol. 29(23): 6606-6619. https://dx.doi.org/10.1111/gcb.16881
In: Global Change Biology. Blackwell Publishers: Oxford. ISSN 1354-1013; e-ISSN 1365-2486, more
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| Keywords |
Biodiversity
Marine/Coastal |
| Author keywords |
climate change scenarios, ecosystem structure and function, fish feeding guilds, habitat suitability, species distribution modelling |
| Authors | | Top |
- Thompson, M.S.A.
- Couce, E.
- Schratzberger, M., more
- Lynam, C.P.
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| Abstract |
Many studies predict shifts in species distributions and community size composition in response to climate change, yet few have demonstrated how these changes will be distributed across marine food webs. We use Bayesian Additive Regression Trees to model how climate change will affect the habitat suitability of marine fish species across a range of body sizes and belonging to different feeding guilds, each with different habitat and feeding requirements in the northeast Atlantic shelf seas. Contrasting effects of climate change are predicted for feeding guilds, with spatially extensive decreases in the species richness of consumers lower in the food web (planktivores) but increases for those higher up (piscivores). Changing spatial patterns in predator–prey mass ratios and fish species size composition are also predicted for feeding guilds and across the fish assemblage. In combination, these changes could influence nutrient uptake and transformation, transfer efficiency and food web stability, and thus profoundly alter ecosystem structure and functioning. |
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