ArticleNature communications2026
Human targeting of morphologically unique fishes amplifies the risk of functional erosion.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Human societies are drawing on wild species for food, fuel, medicines, and recreation. Yet, it remains unclear whether different types of human use target species with common or unique ecological roles. Here we show that humans use a fourth (26%) of the freshwater fish species and these species occupy almost half (45.2%) of the global spectrum of fish morphological diversity. Yet, used species harbour unique trait combinations, that differ according to the way humans use the species such as fisheries, aquaculture, game fish and aquarium. Moreover, the species targeted by humans are characterised by traits that are predominantly associated with threatened species. By simulating the extinction of threatened species used by humans, we revealed a pronounced and non-random erosion of the morphological spectrum. Understanding the trait-based impacts of human use is thus essential to buffer human impact on natural resources. Conservation should therefore safeguard threatened species but also preserve irreplaceable trait combinations that support unique ecological strategies.
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