FNR 24000 Lecture 26: FNR lecture 26
12 Nov 2018
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Document Summary
Biphasic life cycle results in different communities during different life stages: aquatic community for larvae, terrestrial community for juveniles and adults. Oviposition choice by adults- habitat characteristics, yearly environment variation, breeding phenology. Yes, they can avoid pools with predators and competitors. Reduce the chances of the offspring being consumed by predators. Reduce competitors with conspecifics in the pond. All amphibian species in an area don"t start breeding at the same time. Each species has a specific time that they start breeding. Because of differences in the breeding phenology, the larvae of some species have limited direct interactions. Spring peepers breed early and generally metamorphose before gray tree frogs breed. A priority effect is the impact that a particular species can have an community due to its prior arrival at a site. Mini-pods were setup to experimentally test the idea. Different numbers of spring peepers were added early in the experiment.
