Explosive breeding in tropical anurans: Environmental triggers, community composition and acoustic structure
Entity
UAM. Departamento de EcologíaPublisher
BioMed Central Ltd.Date
2019-07-19Citation
10.1186/s12898-019-0243-y
BMC Ecology 19 (2019): 28
ISSN
1472-6785DOI
10.1186/s12898-019-0243-yFunded by
This research was supported by the Labex CEBA (Centre d’Étude de la Biodiversité Amazonienne), which provided fnancial and logistic support for the data collection. JSU was supported by COLCIENCIAS (Doctoral Scholarship of the Colombian government, 2014 call #646). DLL was supported by a Global Marie S. Curie fellowship (European Commission, program H2020, EAVESTROP–661408), a postdoctoral grant Atracción de Talento Investigador (Comunidad de Madrid, CAM, Spain, 2016-T2/AMB-1722), and acknowledges funding provided by the Ministerio de Economía, Industria y Competitividad (CGL2017-88764-R, MINECO/AEI/FEDER, Spain). None of the funders had any role in the design, analysis, interpretation of results or writing the manuscriptProject
info:eu-repo/grantAgreement/EC/H2020/661408/EU//EAVESTROP; Comunidad de Madrid. 2016-T2/AMB-1722; Gobierno de España. CGL2017-88764-REditor's Version
https://doi.org/10.1186/s12898-019-0243-ySubjects
Acoustic diversity; Anuran community; Biodiversity monitoring; Ecoacoustics; Biología y Biomedicina / BiologíaRights
© 2019 The Author(s)Abstract
Background: Anurans largely rely on acoustic communication for sexual selection and reproduction. While multiple studies have focused on the calling activity patterns of prolonged breeding assemblages, species that concentrate their reproduction in short-time windows, explosive breeders, are still largely unknown, probably because of their ephemeral nature. In tropical regions, multiple species of explosive breeders may simultaneously aggregate leading to massive, mixed and dynamic choruses. To understand the environmental triggers, the phenology and composition of these choruses, we collected acoustic and environmental data at five ponds in French Guiana during a rainy season, assessing acoustic communities before and during explosive breeding events. Results: We detected in each pond two explosive breeding events, lasting between 24 and 70 h. The rainfall during the previous 48 h was the most important factor predicting the emergence of these events. During explosive breeding events, we identified a temporal factor that clearly distinguished pre- A nd mid-explosive communities. A common pool of explosive breeders co-occurred in most of the events, namely Chiasmocleis shudikarensis, Trachycephalus coriaceus and Ceratophrys cornuta. Nevertheless, the species composition was remarkably variable between ponds and for each pond between the first and the second events. The acoustic structure of explosive breeding communities had outlying levels of amplitude and unexpected low acoustic diversity, significantly lower than the communities preceding explosive breeding events. Conclusions: Explosive breeding communities were tightly linked with specific rainfall patterns. With climate change increasing rainfall variability in tropical regions, such communities may experience significant shifts in their timing, distribution and composition. In structurally similar habitats, located in the same region without obvious barriers, our results highlight the variation in composition across explosive breeding events. The characteristic acoustic structure of explosive breeding events stands out from the circadian acoustic environment being easily detected at long distance, probably reflecting behavioural singularities and conveying heterospecific information announcing the availability of short-lived breeding sites. Our data provides a baseline against which future changes, possibly linked to climate change, can be measured, contributing to a better understanding on the causes, patterns and consequences of these unique assemblages
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Google Scholar:Ulloa, Juan Sebastian
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Aubin, Thierry
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Llusia Genique, Diego
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Courtois, Élodie A.
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Fouquet, Antoine
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Gaucher, Philippe
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Pavoine, Sandrine
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Sueur, Jérôme
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