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Phenotypic plasticity in a population of odonates
Randi M Bowman1, Sharol Schmidt1, Chelsea Weeks1
1Division of Natural Sciences and Mathematics, Lewis-Clark State College, Lewiston, Idaho, USA.
Scientific Reports
|June 2, 2018
Summary
Argia vivida dragonfly populations exhibit phenotypic plasticity, changing their aggressive behaviors when facing food shortages. This adaptability helps ensure species survival in changing environments.
Area of Science:
- Ecology
- Animal Behavior
- Evolutionary Biology
Background:
- Phenotypic plasticity is crucial for species survival amid environmental changes.
- Anthropogenic threats necessitate understanding adaptive strategies in wildlife.
Purpose of the Study:
- To investigate phenotypic plasticity in Argia vivida in response to resource limitation (hunger).
- To quantify behavioral shifts during intraspecific interactions under induced food scarcity.
Main Methods:
- Resource limitation was induced by withholding food for 1 and 4 days.
- Agonistic behavior was scored during one-on-one combat trials.
- Genotypes were identified based on behavioral responses.
Main Results:
- Significant phenotypic plasticity in agonistic behavior was observed in Argia vivida.
- Three distinct genotypic classes emerged: increased aggression, decreased aggression, and no plasticity.
- Behavioral changes were evident after both 1 and 4 days of food limitation.
Conclusions:
- Argia vivida demonstrates notable phenotypic plasticity in response to resource scarcity.
- Variable plastic strategies within the population contribute to maintaining fitness in fluctuating environments.
- This adaptability is vital for long-term species survival against environmental challenges.
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