Competition Affects Clutch Size and Offspring Size in Parasitoid Wasps
Author Information
Author(s): Goubault Marlène, Mack Alexandra F.S, Hardy Ian C.W
Primary Institution: School of Biosciences, University of Nottingham
Hypothesis
Clutch size will be reduced in anticipation of a more competitive future environment, leading to larger offspring.
Conclusion
Mothers experiencing competition laid smaller clutches, resulting in fewer but larger offspring.
Supporting Evidence
- Smaller clutches were produced by mothers experiencing competition.
- Larger offspring developed from smaller clutches.
- Clutch size was influenced by the presence of competitors.
- Egg-to-adult survivorship increased with clutch size.
- Competition led to a reduction in the number of eggs laid.
Takeaway
When wasps think there will be more competition for food, they lay fewer eggs, but the eggs they do lay become bigger wasps.
Methodology
The study involved rearing wasps and manipulating the presence of competitors to observe effects on clutch size and offspring size.
Potential Biases
Potential biases could arise from the controlled laboratory conditions not fully replicating natural environments.
Limitations
The study's findings may not generalize to all parasitoid species or environments.
Participant Demographics
The study focused on the parasitoid wasp species Goniozus nephantidis.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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