Calcium ions in the aquatic environment drive planarians to food.
Environment-responsive behavior
Environmental changes
Feeding behavior
Planarian
Quantitative behavioristics
Responsive sensitivity
Journal
Zoological letters
ISSN: 2056-306X
Titre abrégé: Zoological Lett
Pays: England
ID NLM: 101664800
Informations de publication
Date de publication:
2019
2019
Historique:
received:
25
05
2019
accepted:
21
10
2019
entrez:
14
11
2019
pubmed:
14
11
2019
medline:
14
11
2019
Statut:
epublish
Résumé
Even subtle changes in environmental factors can exert behavioral effects on creatures, which may alter interspecific interactions and eventually affect the ecosystem. However, how changes in environmental factors impact complex behaviors regulated by neural processes is largely unknown. The freshwater planarian Here we found that feeding behavior was suppressed when the concentration of ions in the breeding water was low, while other behaviors were unaffected, resulting in differences in population size. Notably, the decline in feeding behavior was reversed in an ion-concentration-dependent manner soon after the planarians were moved to ion-containing water, which suggests that ions in environmental water rapidly promote feeding behavior in planarians. Moreover, the concentration of ions in the environmental water affected the feeding behavior by modulating the sensitivity of the response to foods. Finally, we found that calcium ions in the aquatic environment were required for the feeding behavior, and exposure to higher levels of calcium ions enhanced the feeding behavior, showing that there was a good correlation between the concentration of calcium ions and the responsiveness of planarians to foods. Environmental calcium ions are indispensable for and potentiate the activity level of the feeding behavior of planarians. Our findings suggest that the ions in the aquatic environment profoundly impact the growth and survival of aquatic animals via modulating their neural activities and behaviors.
Sections du résumé
BACKGROUND
BACKGROUND
Even subtle changes in environmental factors can exert behavioral effects on creatures, which may alter interspecific interactions and eventually affect the ecosystem. However, how changes in environmental factors impact complex behaviors regulated by neural processes is largely unknown. The freshwater planarian
RESULTS
RESULTS
Here we found that feeding behavior was suppressed when the concentration of ions in the breeding water was low, while other behaviors were unaffected, resulting in differences in population size. Notably, the decline in feeding behavior was reversed in an ion-concentration-dependent manner soon after the planarians were moved to ion-containing water, which suggests that ions in environmental water rapidly promote feeding behavior in planarians. Moreover, the concentration of ions in the environmental water affected the feeding behavior by modulating the sensitivity of the response to foods. Finally, we found that calcium ions in the aquatic environment were required for the feeding behavior, and exposure to higher levels of calcium ions enhanced the feeding behavior, showing that there was a good correlation between the concentration of calcium ions and the responsiveness of planarians to foods.
CONCLUSIONS
CONCLUSIONS
Environmental calcium ions are indispensable for and potentiate the activity level of the feeding behavior of planarians. Our findings suggest that the ions in the aquatic environment profoundly impact the growth and survival of aquatic animals via modulating their neural activities and behaviors.
Identifiants
pubmed: 31720007
doi: 10.1186/s40851-019-0147-x
pii: 147
pmc: PMC6836377
doi:
Types de publication
Journal Article
Langues
eng
Pagination
31Informations de copyright
© The Author(s). 2019.
Déclaration de conflit d'intérêts
Competing interestsThe authors declare no competing financial or non-financial Interests.
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