размножение Agalychnis spurrelli

My presentation for the 2020 Animal Behavior Society Virtual Meeting about my research on “Gliding treefrog reproductive behavior: Possible alternative male tactics in a terrestrial breeder“. Abstract: Gliding treefrogs, Agalychnis spurrelli, on Costa Rica’s Osa Peninsula breed explosively in huge aggregations with highly male-skewed sex ratios and intense male-male scramble competition. We observed multiple males cluster around females in attempts to dislodge amplexed males or clasp pairs before and during oviposition. Some non-clasping males position their vents directly beside females’ during oviposition; others kick at recently laid eggs, including after pairs leave. We hypothesize that clasping amplexed pairs, vent-positioning adjacent to pairs, and egg-kicking function as alternative reproductive tactics in which non-amplexed males fertilize eggs by sperm competition or inseminating remaining unfertilized eggs. Our current work combines behavioral data from video recordings with genetic