Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Osmoregulation in Fishes02:32

Osmoregulation in Fishes

50.4K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
50.4K
Osmoregulation in Insects01:47

Osmoregulation in Insects

16.7K
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.
16.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Evidence for selfing in a vertebrate from whole-genome sequencing.

Genome research·2024
Same author

On the use of antibiotics in plasticity research: Gastropod shells unveil a tale of caution.

The Journal of animal ecology·2023
Same author

Support deaf participants at virtual conferences.

Nature·2021
Same author

Anticipatory plastic response of the cellular immune system in the face of future injury: chronic high perceived predation risk induces lymphocytosis in a cichlid fish.

Oecologia·2020

Related Experiment Video

Updated: Sep 11, 2025

Standardizing a Non-Lethal Method for Characterizing the Reproductive Status and Larval Development of Freshwater Mussels Bivalvia: Unionida
07:22

Standardizing a Non-Lethal Method for Characterizing the Reproductive Status and Larval Development of Freshwater Mussels Bivalvia: Unionida

Published on: October 4, 2019

7.8K

Risk allocation in a freshwater gastropod.

Denis Meuthen1

  • 1Evolutionary Biology, Bielefeld University, Konsequenz 45, D-33615 Bielefeld, Germany.

Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology
|August 13, 2025
PubMed
Summary

Organisms balance needs using cues. In gastropods, high predation risk exposure reduced antipredator responses, partially supporting the risk allocation hypothesis, while high-risk stimuli increased responses.

Keywords:
Physa acutaPhysella acutacrawl-out behaviorpredation riskrisk allocationthreat-sensitivity

More Related Videos

Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods
07:53

Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods

Published on: September 5, 2018

7.4K
A Strain Gauge Monitor SGM for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH
07:59

A Strain Gauge Monitor SGM for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH

Published on: August 1, 2018

9.1K

Related Experiment Videos

Last Updated: Sep 11, 2025

Standardizing a Non-Lethal Method for Characterizing the Reproductive Status and Larval Development of Freshwater Mussels Bivalvia: Unionida
07:22

Standardizing a Non-Lethal Method for Characterizing the Reproductive Status and Larval Development of Freshwater Mussels Bivalvia: Unionida

Published on: October 4, 2019

7.8K
Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods
07:53

Bioindication Testing of Stream Environment Suitability for Young Freshwater Pearl Mussels Using In Situ Exposure Methods

Published on: September 5, 2018

7.4K
A Strain Gauge Monitor SGM for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH
07:59

A Strain Gauge Monitor SGM for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH

Published on: August 1, 2018

9.1K

Area of Science:

  • Behavioral Ecology
  • Animal Behavior
  • Predator-Prey Dynamics

Background:

  • Organisms use internal and external cues for optimal behavior.
  • Threat-sensitivity and risk allocation hypotheses explain antipredator responses.
  • Evidence for risk allocation in gastropods is mixed, possibly due to methodological limitations.

Purpose of the Study:

  • To investigate the risk allocation hypothesis in the aquatic gastropod Physella acuta.
  • To examine how long-term background predation risk affects antipredator responses.
  • To clarify mixed evidence regarding risk allocation in invertebrates.

Main Methods:

  • Controlled experiment crossing long-term background risk (high vs. low) with stimulus risk (high vs. low).
  • Used conspecific alarm cues to simulate high predation risk.
  • Measured crawl-out behavior as an antipredator response.

Main Results:

  • High-risk stimuli increased crawl-out behavior, irrespective of background risk, supporting threat-sensitivity.
  • High background risk led to reduced responsiveness to both low- and high-risk stimuli, partially supporting risk allocation.
  • Tactile cues from stimuli may have influenced high background risk snails' responses.

Conclusions:

  • The study provides well-controlled data on risk allocation in gastropods.
  • Findings partially support the risk allocation hypothesis, suggesting a complex interplay between background risk and stimulus perception.
  • Physella acuta exhibits adaptive antipredator strategies influenced by both immediate threats and long-term risk environments.