Predator avoidance behaviour of Baltic littoral mysids Neomysis integer and Praunus flexuosus

Cephalopods, and in particular the cuttlefish Sepia officinalis , are common models for studies of camouflage and predator avoidance behaviour. Preventing detection by predators is especially important to this group of animals, most of which are soft-bodied, lack physical defences, and are subject to both visually and non-visually mediated detection. Here, we report a novel cryptic mechanism in S. officinalis in which bioelectric cues are reduced via a behavioural freeze response to a predator stimulus. The reduction of bioelectric fields created by the freeze-simulating stimulus resulted in a possible decrease in shark predation risk by reducing detectability. The freeze response may also facilitate other non-visual cryptic mechanisms to lower predation risk from a wide range of predator types.

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Predator avoidance behaviour in the buffy-headed marmoset,Callithrix flaviceps

Primates ◽

10.1007/bf02381104 ◽

1990 ◽

Vol 31 (3) ◽

pp. 323-338 ◽

Cited By ~ 64

Author(s):

Stephen Francis Ferrari ◽

Maria Aparecida Lopes Ferrari

Keyword(s):

Predator Avoidance ◽

Avoidance Behaviour ◽

Callithrix Flaviceps

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Changes in the predator-avoidance behaviour of juvenile guppies (Poecilia reticulata) exposed to pentachlorophenol

Canadian Journal of Zoology ◽

10.1139/z85-294 ◽

1985 ◽

Vol 63 (9) ◽

pp. 2001-2005 ◽

Cited By ~ 24

Author(s):

Joseph A. Brown ◽

Peter H. Johansen ◽

Patrick W. Colgan ◽

R. Alastair Mathers

Keyword(s):

Largemouth Bass ◽

Predator Avoidance ◽

Poecilia Reticulata ◽

Micropterus Salmoides ◽

Avoidance Behaviour ◽

General Behaviour ◽

Treatment Groups ◽

Predator Attack ◽

High Treatment ◽

Predator Efficiency

The effects of pentachlorophenol on the predator-avoidance behaviour of the guppy (Poecilia reticulate) in response to largemouth bass (Micropterus salmoides) predation was investigated. There were no consistent effects of pentachlorophenol on habitat use or general behaviour of the guppies. In the presence of predators, all guppies occurred significantly more often alone, motionless, and in the top third of the water column in the nonopen areas. Nine variables associated with predator efficiency were monitored to determine which treatment groups of guppies were easiest to capture. The bass had significantly lower capture success, performed more strikes and chases, and spent more time chasing guppies from the untreated and 100 μg/L groups than those from the 500 and 700 μg/L groups. This suggests that the guppies from the two high treatment groups had a slower response to predator attack and could not maintain a prolonged escape burst of speed.

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Ocean acidification affects predator avoidance behaviour but not prey detection in the early ontogeny of a keystone species

Marine Ecology Progress Series ◽

10.3354/meps10703 ◽

2014 ◽

Vol 502 ◽

pp. 157-167 ◽

Cited By ~ 32

Author(s):

PH Manríquez ◽

ME Jara ◽

ML Mardones ◽

R Torres ◽

JM Navarro ◽

...

Keyword(s):

Ocean Acidification ◽

Predator Avoidance ◽

Keystone Species ◽

Early Ontogeny ◽

Avoidance Behaviour ◽

Prey Detection

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Effect of Turbidity on the Predator Avoidance Behaviour of Juvenile Chinook Salmon (Oncorhynchus tshawytscha)

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f93-027 ◽

1993 ◽

Vol 50 (2) ◽

pp. 241-246 ◽

Cited By ~ 128

Author(s):

Robert S. Gregory

Keyword(s):

Chinook Salmon ◽

Perceived Risk ◽

Predator Avoidance ◽

Oncorhynchus Tshawytscha ◽

Avoidance Behaviour ◽

Fish Predator ◽

Juvenile Chinook Salmon ◽

Risk Of Predation ◽

Juvenile Chinook ◽

Predator Risk

The effect of turbidity on the predator avoidance behaviour of juvenile chinook salmon (Oncorhynchus tshawytscha) was determined in controlled laboratory experiments. Bird and fish models were used to simulate predator risk. In the absence of risk, juvenile chinook were distributed randomly within an experimental arena in turbid conditions (≈23 NTU), but in clear conditions (<1 NTU) they associated with the bottom. When introduced to bird and fish predator models, the chinook altered their distribution and occupied deeper parts of the arena regardless of turbidity level. However, their responses in turbid conditions were less marked and of shorter duration. Turbidity apparently reduced the perceived risk of predation in juvenile chinook.

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