Novel and classical methods similarly describe variation in territory size among males in Neotropical poison frogs with contrasting reproductive and behavioral strategies

Evolutionary Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 2, 2024

Abstract Territoriality is a form of social dominance concerning the use space that ensures territory owner primary access to critical resources. The defended with visual displays, advertisement calls, physical attacks, or chemical signals. frequently estimated by mapping locations where an animal observed engaging in territorial behavior tracking. However, these approaches may over- underestimate areas defended. Thus, explicitly determining properly characterize territory. Intrusion experiments can elicit response holders, allowing one their aggressive responses; however, depends on species. We describe approach experimentally estimate size using playback species exhibits stereotypical phonotactic response: nurse frog, Allobates aff. trilineatus and develop new behavioral index allows assessing playbacks for non-stereotyped endangered Lehmann’s poison Oophaga lehmanni . conducted 772 18 males A. , 222 nine O. analyzed results three different area estimators regularly used evaluated whether estimates are correlated. shape territories varied among individuals both Although we found absolute method used, were strongly correlated, meaning similarly variation males. Choosing analysis not be particularly important studying characteristics territoriality over time but systematic standardized experimental also incorporates particularities each essential understand evolution frogs other

Language: Английский

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Does testosterone underly the interplay between male traits and territorial behavior in neotropical poison frogs?

Hormones and Behavior, Journal Year: 2024, Volume and Issue: 162, P. 105547 - 105547

Published: April 26, 2024

The ability of individual animals to defend a territory as well various phenotypic and behavioral traits may be targets sexual selection used by males evaluate their competitors or females choose males. A frequent question in animal behavior is whether male characteristics are correlated what the mechanisms that mediate such associations when they exist. Because hormones link phenotype behavior, studying role testosterone territoriality one come closer understanding mediating correlations lack thereof between territories We evaluated variation (size quality) with morphology, coloration, testosterone, heterozygosity, calls two species poison frogs. Amazonian frog Allobates aff. trilineatus exhibits care defends only during breeding season, while endangered Oophaga lehmanni displays maternal throughout year. found morphological (body length, weight, thigh size), call activity, levels size indicators quality territory. However, direction these (whether positive negative) which specific morphological, acoustic level variables covaried depended on species. Our findings highlight an endocrine pathway part physiological machinery underlie interplay territorial behavior. were able identify some related attributes, but based requires further research.

Language: Английский

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Developments in the study of poison frog evolutionary ecology II: decoding hidden messages in their coloration and unique behaviours

Evolutionary Ecology, Journal Year: 2024, Volume and Issue: 38(5), P. 551 - 570

Published: Oct. 1, 2024

Language: Английский

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