Widespread shifts in body size within populations and assemblages

Martins, Inês S.; Schrodt, Franziska; Blowes, Shane A.; Bates, Amanda E.; Bjorkman, Anne D.; Brambilla, Viviana; Carvajal-Quintero, Juan; Chow, Cher F. Y.; Daskalova, Gergana N.; Edwards, Kyle; Eisenhauer, Nico; Field, Richard; Fontrodona-Eslava, Ada; Henn, Jonathan J.; van Klink, Roel; Madin, Joshua S.; Magurran, Anne E.; McWilliam, Michael; Moyes, Faye; Pugh, Brittany; Sagouis, Alban; Trindade-Santos, Isaac; McGill, Brian J.; Chase, Jonathan M.; Dornelas, Maria

doi:10.1126/science.adg6006

Cited by 9 publications

(3 citation statements)

References 122 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…co-occurrence patterns), that were not taken into account in our study. Nevertheless, we show that the R 2 values we obtain are not random, and we report consistent results among occurrence, abundance and biomass models, among different levels of protection, and also similar to effects reported for other taxa such as birds (Barnes et al, 2022;Martins et al, 2023). We suggest that rarity and potential Allee effects cannot be ignored in the design and implementation of MPAs (White et al, 2021) since the persistence of rare predators, which contribute disproportionately to the IUCN Red List of extinction risk (Dulvy et al, 2014;Harnik et al, 2012), critically depend on them.…”

Section: Discussionsupporting

confidence: 90%

Rarity mediates species‐specific responses of tropical reef fishes to protection

Sanchez,

Loiseau,

Edgar

et al. 2024

Ecology Letters

View full text Add to dashboard Cite

Marine protected areas (MPAs) are the most widely applied tool for marine biodiversity conservation, yet many gaps remain in our understanding of their species‐specific effects, partly because the socio‐environmental context and spatial autocorrelation may blur and bias perceived conservation outcomes. Based on a large data set of nearly 3000 marine fish surveys spanning all tropical regions of the world, we build spatially explicit models for 658 fish species to estimate species‐specific responses to protection while controlling for the environmental, habitat and socio‐economic contexts experienced across their geographic ranges. We show that the species responses are highly variable, with ~40% of fishes not benefitting from protection. When investigating how traits influence species' responses, we find that rare top‐predators and small herbivores benefit the most from MPAs while mid‐trophic level species benefit to a lesser extent, and rare large herbivores experience adverse effects, indicating potential trophic cascades.

show abstract

Section: Discussionsupporting

confidence: 90%

Rarity mediates species‐specific responses of tropical reef fishes to protection

Sanchez,

Loiseau,

Edgar

et al. 2024

Ecology Letters

View full text Add to dashboard Cite

show abstract

“…Such synchrony may also correspond to recently described global trends in the covariance of multiple ecosystem functions 39 , 88 . It could also be related to other widely reported patterns of ecological change, such as the global “community downsizing” of animal communities that occurs in response to both climate change and anthropogenic disturbance 89 , 90 and its impact on ecosystem functioning 91 , though further theoretical integration would also be required. When combined with these results, our findings highlight the potential for a new generation of whole ecosystem-level studies that go beyond the description of single trophic guild-level strategies to characterise communities, or single functions to characterise ecosystem responses.…”

Section: Discussionmentioning

confidence: 99%

A slow-fast trait continuum at the whole community level in relation to land-use intensification

Neyret,

Le Provost,

Boesing

et al. 2024

Nat Commun

View full text Add to dashboard Cite

Organismal functional strategies form a continuum from slow- to fast-growing organisms, in response to common drivers such as resource availability and disturbance. However, whether there is synchronisation of these strategies at the entire community level is unclear. Here, we combine trait data for >2800 above- and belowground taxa from 14 trophic guilds spanning a disturbance and resource availability gradient in German grasslands. The results indicate that most guilds consistently respond to these drivers through both direct and trophically mediated effects, resulting in a ‘slow-fast’ axis at the level of the entire community. Using 15 indicators of carbon and nutrient fluxes, biomass production and decomposition, we also show that fast trait communities are associated with faster rates of ecosystem functioning. These findings demonstrate that ‘slow’ and ‘fast’ strategies can be manifested at the level of whole communities, opening new avenues of ecosystem-level functional classification.

show abstract

“…Perhaps more important are the global changes in fish that could lower their C15:0 content. When evaluating the body sizes of fish from 1960 to 2020, Martins et al found that the mean body sizes of fish have been decreasing [109]. This movement toward more smaller fish in the oceans, which may be due to combinations of overfishing and warmer temperature waters, are expected to result in fish that contain less fat, including C15:0.…”

Section: Drivers For Declining C15:0 Concentrationsmentioning

confidence: 99%

The Cellular Stability Hypothesis: Evidence of Ferroptosis and Accelerated Aging-Associated Diseases as Newly Identified Nutritional Pentadecanoic Acid (C15:0) Deficiency Syndrome

Venn-Watson

2024

Metabolites

View full text Add to dashboard Cite

Ferroptosis is a newly discovered form of cell death caused by the peroxidation of fragile fatty acids in cell membranes, which combines with iron to increase reactive oxygen species and disable mitochondria. Ferroptosis has been linked to aging-related conditions, including type 2 diabetes, cardiovascular disease, and nonalcoholic fatty liver disease (NAFLD). Pentadecanoic acid (C15:0), an odd-chain saturated fat, is an essential fatty acid with the primary roles of stabilizing cell membranes and repairing mitochondrial function. By doing so, C15:0 reverses the underpinnings of ferroptosis. Under the proposed “Cellular Stability Hypothesis”, evidence is provided to show that cell membranes optimally need >0.4% to 0.64% C15:0 to support long-term health and longevity. A pathophysiology of a newly identified nutritional C15:0 deficiency syndrome (“Cellular Fragility Syndrome”) is provided that demonstrates how C15:0 deficiencies (≤0.2% total circulating fatty acids) can increase susceptibilities to ferroptosis, dysmetabolic iron overload syndrome, type 2 diabetes, cardiovascular disease, and NAFLD. Further, evidence is provided that C15:0 supplementation can reverse the described C15:0 deficiency syndrome, including the key components of ferroptosis. Given the declining dietary intake of C15:0, especially among younger generations, there is a need for extensive studies to understand the potential breadth of Cellular Fragility Syndrome across populations.

show abstract

Widespread shifts in body size within populations and assemblages

Cited by 9 publications

References 122 publications

Rarity mediates species‐specific responses of tropical reef fishes to protection

Rarity mediates species‐specific responses of tropical reef fishes to protection

A slow-fast trait continuum at the whole community level in relation to land-use intensification

The Cellular Stability Hypothesis: Evidence of Ferroptosis and Accelerated Aging-Associated Diseases as Newly Identified Nutritional Pentadecanoic Acid (C15:0) Deficiency Syndrome

Contact Info

Product

Resources

About