Event Title

P-35 Impacts of First Egg Lost to Cannibalism on Cannibalism of Remaining Clutch

Location

Buller Hall 207

Start Date

3-11-2022 1:30 PM

End Date

3-11-2022 3:30 PM

Department

Biology

Description

Female gulls lay three eggs: A, B, and C, laid in that order. When sea temperature rises, gulls cannibalize neighbors’ eggs. A-eggs are cannibalized preferentially and are eaten the day they are laid, and the odds of this decrease with the number of A-eggs laid that day. Here we considered nests in which the A-egg was cannibalized. We investigated whether B-eggs were cannibalized more than C-eggs, whether they were eaten the day they were laid, and whether the odds decreased with the number of B eggs laid that day. Our results supported the first two hypotheses but not the third.

Acknowledgments

Advisor: Shandelle Henson, Mathematics & Biology

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Mar 11th, 1:30 PM Mar 11th, 3:30 PM

P-35 Impacts of First Egg Lost to Cannibalism on Cannibalism of Remaining Clutch

Buller Hall 207

Female gulls lay three eggs: A, B, and C, laid in that order. When sea temperature rises, gulls cannibalize neighbors’ eggs. A-eggs are cannibalized preferentially and are eaten the day they are laid, and the odds of this decrease with the number of A-eggs laid that day. Here we considered nests in which the A-egg was cannibalized. We investigated whether B-eggs were cannibalized more than C-eggs, whether they were eaten the day they were laid, and whether the odds decreased with the number of B eggs laid that day. Our results supported the first two hypotheses but not the third.