Functional response metrics explain and predict high but differing ecological impacts of juvenile and adult lionfish DOI Creative Commons
Monica McCard,

Nathan McCard,

Neil E. Coughlan

et al.

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(8)

Published: Aug. 1, 2024

Recent accumulation of evidence across taxa indicates that the ecological impacts invasive alien species are predictable from their functional response (FR; e.g. maximum feeding rate) and ratio (FRR; FR attack rate divided by handling time). Here, we experimentally derive these metrics to predict both juvenile adult lionfish ( Pterois volitans ), one world’s most damaging invaders, representative likely future prey types. Potentially prey-population destabilizing Type II FRs were exhibited life stages towards four species: Artemia salina , Gammarus oceanicus Palaemonetes varians Nephrops norvegicus . magnitudes revealed ontogenetic shifts in where displayed similar if not higher consumption rates than prey, apart N. was considerably higher. Additionally, FRR values very substantially mean known taxa. Thus, predicted contribute differing but high communities, including commercially important species. With invasion ranges currently expanding multiple regions globally, efforts reduce numbers population size structure, with provision refugia through habitat complexity, might curtail impacts. Nevertheless, present study management programmes support early detection complete eradication individuals when discovered new advised.

Language: Английский

Functional response metrics explain and predict high but differing ecological impacts of juvenile and adult lionfish DOI Creative Commons
Monica McCard,

Nathan McCard,

Neil E. Coughlan

et al.

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(8)

Published: Aug. 1, 2024

Recent accumulation of evidence across taxa indicates that the ecological impacts invasive alien species are predictable from their functional response (FR; e.g. maximum feeding rate) and ratio (FRR; FR attack rate divided by handling time). Here, we experimentally derive these metrics to predict both juvenile adult lionfish ( Pterois volitans ), one world’s most damaging invaders, representative likely future prey types. Potentially prey-population destabilizing Type II FRs were exhibited life stages towards four species: Artemia salina , Gammarus oceanicus Palaemonetes varians Nephrops norvegicus . magnitudes revealed ontogenetic shifts in where displayed similar if not higher consumption rates than prey, apart N. was considerably higher. Additionally, FRR values very substantially mean known taxa. Thus, predicted contribute differing but high communities, including commercially important species. With invasion ranges currently expanding multiple regions globally, efforts reduce numbers population size structure, with provision refugia through habitat complexity, might curtail impacts. Nevertheless, present study management programmes support early detection complete eradication individuals when discovered new advised.

Language: Английский

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