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

Optimal Foraging00:48

Optimal Foraging

14.3K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
14.3K
Randomized Experiments01:13

Randomized Experiments

9.3K
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
9.3K
Multimachine Stability01:25

Multimachine Stability

626
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
626
Energy Budgets00:51

Energy Budgets

11.1K
Organisms must balance energy intake with the energy required for growth, maintenance and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species, like annual plants, have only one reproductive episode in their lifetimes and consequently have short lifespans. Iteroparous species, by contrast, have many reproductive events during their lifetimes but have relatively few offspring. These two...
11.1K
Distributed Loads: Problem Solving01:21

Distributed Loads: Problem Solving

1.2K
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
1.2K
Cyclic Processes And Isolated Systems01:19

Cyclic Processes And Isolated Systems

3.6K
A thermodynamic system with zero heat exchange and work is an isolated system. For these systems, the internal energy remains constant.
In the case of a non-isolated system, the change in the internal energy is zero only if the process is cyclic. A thermodynamic process is considered cyclic if the system undergoes a series of changes and returns to its initial state. 
Consider a cyclic process that returns to its initial state, undergoing a four-step process. The heat transfer along each...
3.6K

You might also read

Related Articles

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

Sort by
Same author

Predation risk shapes among- and within-individual variation in behavior in poison frog tadpoles.

Behavioral ecology : official journal of the International Society for Behavioral Ecology·2026
Same author

Season-dependent low basal CD86 expression promotes immune cell activation upon treatment with plasma-derived factor Ⅷ products.

Research and practice in thrombosis and haemostasis·2026
Same author

To eat or to care? Factors shaping parental or infanticidal behaviours in male poison frogs during territory takeover.

Frontiers in zoology·2025
Same author

Does the Post-Natal Social Environment Influence Cognitive Development in a Social Gecko?

Ecology and evolution·2025
Same author

Ecological and Behavioral Implications of Multiple Paternity in the Smooth-Fronted Caiman in French Guiana.

Ecology and evolution·2025
Same author

Is there a right place? The effect of within-leaf clutch location on offspring survival in a glassfrog.

PloS one·2025
Same journal

How distinct are sleep sites from active sites across habitat types in lizards?

Behavioral ecology and sociobiology·2026
Same journal

Forelimb stripe coloration signals age, but not physiological health, in painted turtles.

Behavioral ecology and sociobiology·2026
Same journal

Eurasian spoonbill chicks receive parental care up to several months after fledging, but not into migration.

Behavioral ecology and sociobiology·2025
Same journal

Familiarity mediated by body size predicts intraspecific aggression in farming damselfishes.

Behavioral ecology and sociobiology·2025
Same journal

No sensitive period for the development of individual face learning in <i>polistes fuscatus</i> wasps.

Behavioral ecology and sociobiology·2025
Same journal

Sociality does not predict signal complexity in response to playback in apteronotid weakly electric fishes.

Behavioral ecology and sociobiology·2025
See all related articles

Related Experiment Video

Updated: Apr 12, 2026

Author Spotlight: Exploring Microglial Interactions with Stress-Response Circuitry Using the Limited Bedding and Nesting Model
04:20

Author Spotlight: Exploring Microglial Interactions with Stress-Response Circuitry Using the Limited Bedding and Nesting Model

Published on: July 12, 2024

2.9K

Brood-partitioning behaviour in unpredictable environments: hedging the bets?

Magdalena Erich1, Max Ringler1, Walter Hödl1

  • 1Department of Integrative Zoology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.

Behavioral Ecology and Sociobiology
|May 19, 2015
PubMed
Summary
This summary is machine-generated.

Poison frog males distribute tadpoles across multiple water bodies to reduce offspring mortality. This reproductive strategy, known as brood partitioning, acts as a bet-hedging mechanism against unpredictable environmental conditions.

Keywords:
AmphibiansBet-hedgingBrood spreadingParental careTadpole transport

More Related Videos

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations
07:40

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Published on: October 29, 2016

11.7K
Foraging Path-length Protocol for Drosophila melanogaster Larvae
07:26

Foraging Path-length Protocol for Drosophila melanogaster Larvae

Published on: April 23, 2016

10.0K

Related Experiment Videos

Last Updated: Apr 12, 2026

Author Spotlight: Exploring Microglial Interactions with Stress-Response Circuitry Using the Limited Bedding and Nesting Model
04:20

Author Spotlight: Exploring Microglial Interactions with Stress-Response Circuitry Using the Limited Bedding and Nesting Model

Published on: July 12, 2024

2.9K
Monitoring Spatial Segregation in Surface Colonizing Microbial Populations
07:40

Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

Published on: October 29, 2016

11.7K
Foraging Path-length Protocol for Drosophila melanogaster Larvae
07:26

Foraging Path-length Protocol for Drosophila melanogaster Larvae

Published on: April 23, 2016

10.0K

Area of Science:

  • Ecology
  • Evolutionary Biology
  • Herpetology

Background:

  • Brood partitioning optimizes fitness in unpredictable environments by spreading reproductive risks.
  • Poison frogs exhibit complex reproductive behaviors, including parental care.
  • Larval deposition in multiple water bodies is documented in carnivorous poison frogs with tadpoles in small pools.

Purpose of the Study:

  • To investigate brood-partitioning behavior in the non-carnivorous Neotropical poison frog, *Allobates femoralis*.
  • To determine if *Allobates femoralis* males distribute tadpoles from single or successive clutches across multiple water bodies.
  • To assess the relationship between the number of clutches and the number of water bodies used by males.

Main Methods:

  • Sampling of tadpoles from 30 artificial water bodies.
  • Genotyping of tadpoles using seven polymorphic microsatellite loci.
  • Reconstruction of pedigrees to determine parentage and larval distribution patterns.

Main Results:

  • *Allobates femoralis* males were found to distribute tadpoles from single and successive clutches across multiple water bodies.
  • A significant association was observed between the number of clutches per male and the number of pools utilized.
  • Ninety-three percent of males with multiple clutches spread their tadpoles across several water bodies.

Conclusions:

  • The observed brood-partitioning behavior in *Allobates femoralis* is interpreted as a bet-hedging strategy.
  • This strategy likely enhances offspring survival in the variable and unpredictable tropical rainforest environment.
  • The findings extend the understanding of larval deposition strategies in non-carnivorous poison frogs.