Guppies show rapid and lasting inhibition of foraging behaviour.

Behav Processes 2019 Jul 16;164:91-99. Epub 2019 Apr 16.

Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.

To cope with the variable environment, animals are continuously required to learn novel behaviours or, in certain cases, to inhibit automatic and previously learned behaviours. Traditionally, inhibition has been regarded as cognitively demanding and studied mostly in primates, other mammals and birds, using laboratory tasks, such as the cylinder task. Recent studies have also revealed that fish show high levels of inhibition in the cylinder task. However, conclusions on such results are undermined by evidence that the cylinder task may be inappropriate to compare such phylogenetically distant species. Here, we studied whether a fish, the guppy, Poecilia reticulata, could learn to inhibit behaviour using a different paradigm, which exploited spontaneous foraging behaviour and overcame some drawbacks that characterised the cylinder task. We exposed guppies to live brine shrimp nauplii, Artemia salina, enclosed within a transparent tube. Initially, the guppies attempted to attack the prey but over time showed a rapid decrease of the attacks. Control tests seemed to exclude the possibility that this behavioural trend was due to response to novelty or habituation, and suggested that the guppies were learning to inhibit the foraging behaviour. Memory tests indicated that guppies retained the inhibition of foraging behaviour for at least 24 h. Our study seems to indicate that teleost fish display rapid and durable inhibition of spontaneous foraging behaviour; this may be related to previous evidence, from the cylinder task, supporting efficient behavioural inhibition in this taxon.

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S03766357183049
Publisher Site
http://dx.doi.org/10.1016/j.beproc.2019.04.011DOI Listing

Still can't find the full text of the article?

We can help you send a request to the authors directly.
July 2019
10 Reads

Article Mentions


Provided by Crossref Event Data
twitter
Twitter:
April 22, 2019, 8:39 am EST
twitter
Twitter:
April 19, 2019, 10:11 am EST
twitter
Twitter:
April 19, 2019, 6:29 am EST
twitter
Twitter:
April 19, 2019, 2:30 am EST

Publication Analysis

Top Keywords

cylinder task
20
foraging behaviour
20
evidence cylinder
8
spontaneous foraging
8
inhibition foraging
8
inhibition
6
behaviour
6
guppies
5
cylinder
5
task
5
foraging
5
shrimp nauplii
4
nauplii artemia
4
live brine
4
artemia salina
4
brine shrimp
4
tube initially
4
attempted attack
4
attack prey
4
prey time
4

Similar Publications