Forests of North Dakota, 2017

Paulson, Charles S.

doi:10.2737/fs-ru-149

Cited by 1 publication

(2 citation statements)

References 3 publications

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“…Non-native largemouth bass Micropterus salmoides played a key role in the extinction of the last natural population of the Santa Cruz pupfish Cyprinodon arcuatus [ 8 , 9 , 24 ]. However, non-native mosquitofish Gambusia affinis , that prey on larval Mohave tui chub Siphateles bicolor mohavensis [ 25 ] and larval Pahrump poolfish Empetrichthys latos [ 18 , 19 ], have co-persisted with pupfish for decades [ 18 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, we reported a case of predator naiveté to conspecific olfactory cues in the Pahrump poolfish (Empetrichthys latos) [17]. This endangered species, which has been severely impacted by non-native predators [18][19][20], showed no behavioural response to conspecific epidermal alarm cues [17]. This is a unique case of predator naiveté because Pahrump poolfish lack the olfactoral ability to detect and avoid predation events.…”

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confidence: 99%

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Acquired predator recognition via epidermal alarm cues but not dietary alarm cues by isolated pupfish

Wisenden,

Anderson,

Hanson

et al. 2023

R. Soc. open sci.

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We tested whether Shoshone pupfish Cyprinodon nevadensis shoshone and Amargosa River pupfish C. n. amargosae respond behaviourally to conspecific chemical alarm cues released when epidermal tissue is damaged by a predator. We found that both subspecies reduced activity and vertical position in the water column in response to alarm cues. We then tested if pupfish can use alarm cue to acquire recognition of a novel predator. We trained pupfish with (1) water + odour of largemouth bass fed a diet of earthworms, (2) alarm cues from skin extract (epidermal alarm cues) + odour of bass fed a diet of earthworms, or (3) water + odour of bass fed a diet of pupfish (dietary alarm cues). Pupfish responded to epidermal alarm cues but not to dietary alarm cues. Pupfish were retested with the odour of bass that were fed an earthworm diet. Pupfish that had previously received epidermal alarm cues reduced vertical position and activity relative to the other two treatments. This is the first demonstration of acquired recognition of a novel predator by a pupfish, the first report of partial predator naiveté, and opens the possibility of predator-recognition training as a tool for management and conservation of endangered desert fishes.

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