Fish and invertebrate communities show greater day–night partitioning on tropical than temperate reefs DOI
Tyson R. Jones, Graham J. Edgar, Rowan Trebilco

et al.

Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

Abstract Diel partitioning of animals within ecological communities is widely acknowledged, yet rarely quantified. Investigation most patterns and processes involves convenient daylight sampling, with little consideration the contributions nocturnal taxa, particularly in marine environments. Here we assess diel reef faunal assemblages at a continental scale utilizing paired day night visual census across 54 shallow tropical temperate reefs around Australia. Day–night differences were pronounced tropics, fishes invertebrates displaying distinct opposing occupancy on coral reefs. Tropical daytime occupied primarily by not observed (64% all species sighted night, 71% individuals). By substantial emergence otherwise detected during sunlit hours occurred (56% species, 45% Nocturnal corresponded significant declines richness biomass predatory herbivorous diurnal fishes. In contrast, relatively small changes active to limited invertebrates. This reduced may, least part, be result strong top‐down pressures from invertebrate communities, either predation or competitive interference. For reefs, cycle triggers retreat associated trophic processes, which go unnoticed regular scientific monitoring. Improved understanding ecology, management ecosystems, requires greater interactions. Without explicit sampling may missing up half story when assessing

Language: Английский

Fish and invertebrate communities show greater day–night partitioning on tropical than temperate reefs DOI
Tyson R. Jones, Graham J. Edgar, Rowan Trebilco

et al.

Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

Abstract Diel partitioning of animals within ecological communities is widely acknowledged, yet rarely quantified. Investigation most patterns and processes involves convenient daylight sampling, with little consideration the contributions nocturnal taxa, particularly in marine environments. Here we assess diel reef faunal assemblages at a continental scale utilizing paired day night visual census across 54 shallow tropical temperate reefs around Australia. Day–night differences were pronounced tropics, fishes invertebrates displaying distinct opposing occupancy on coral reefs. Tropical daytime occupied primarily by not observed (64% all species sighted night, 71% individuals). By substantial emergence otherwise detected during sunlit hours occurred (56% species, 45% Nocturnal corresponded significant declines richness biomass predatory herbivorous diurnal fishes. In contrast, relatively small changes active to limited invertebrates. This reduced may, least part, be result strong top‐down pressures from invertebrate communities, either predation or competitive interference. For reefs, cycle triggers retreat associated trophic processes, which go unnoticed regular scientific monitoring. Improved understanding ecology, management ecosystems, requires greater interactions. Without explicit sampling may missing up half story when assessing

Language: Английский

Citations

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