Presentation Details
| Predicting Context-Dependent Sexual Behavior and Its Role on Population Dynamics for Conservation Management Pratush Brahma1, St.Mary Colette1, 2. 1University of Florida, Gainesville, Florida, USA.2National Science Foundation, Alexandria, Virginia, USA |
Abstract
The spread of invasive species and the range expansion of native species both often entail population expansion from small population size. How reproductive behavior contributes to this phenomenon is key. Here we model optimal density dependent reproductive behavior and consider how mismatches between behavior and experienced density contribute to population expansion. We model invasive fish species (African Jewelfish) and implement population simulations under various density scenarios. First, we use dynamic state variable models to predict the optimal reproductive strategies for males and females at varying densities: low, lower intermediate, higher intermediate, and high. Then, we run individual-based simulations to observe how these strategies perform in both matching and mismatching density conditions. Finally,we extrapolate these findings into population level simulations to understand their broader impact on population dynamics. Our integrative approach reveals how variation in reproductive behavior contributes to population expansion,can inform the control of invasive species and may also inform other broader conservation efforts, such as range shift under changing climate.
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No part of this publication may be reproduced, distributed, or transmitted in any form or by any means, including photocopying, recording, or other electronic or mechanical methods, without the prior written permission of the author.
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