Anuran accents: Continental‐scale citizen science data reveal spatial and temporal patterns of call variability

Weaver, Savannah J.; Callaghan, Corey T.; Rowley, Jodi J. L.

doi:10.1002/ece3.6833

Cited by 12 publications

(19 citation statements)

References 121 publications

(180 reference statements)

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“…This degree of variation in advertisement calls across the entire range of a species is increasingly being recognized (Mitchell et al., 2020; Weaver et al., 2020). Frog calls often exhibit high degrees of temporal and spatial variability, with acoustic structure varying throughout a breeding season and across a species' range (Weaver et al., 2020). It may be useful to consider such temporal patterns in frog call structure in future studies.…”

Section: Discussionmentioning

confidence: 99%

“…These included recordings in which there was substantial background noise, the calls were too faint, there was considerable temporal overlap between calling individuals, or the measured individual called fewer than three times (e.g. Mitchell et al., 2020; Weaver et al., 2020). Of the 6830 recordings examined, 674 were of sufficient quality to be analysed, representing 10% of our filtered dataset.…”

Section: Methodsmentioning

confidence: 99%

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Assessment of the acoustic adaptation hypothesis in frogs using large‐scale citizen science data

Gillard

Rowley

2023

Journal of Zoology

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Acoustic communication is vital to the survival and fitness of many vertebrates. While successful communication is reliant on acoustic signals reaching an intended receiver and maintaining content fidelity, propagating signals are attenuated by environmental factors such as habitat type. The acoustic adaptation hypothesis (AAH) predicts that the acoustic properties of signals are selected for optimal transmission in the habitats in which they propagate. To date, consistent evidence to support the theory is lacking, but studies have typically been primarily based on localized datasets with small sample sizes. Citizen science is emerging as a potential means to overcome the challenges associated with broad‐scale sampling, allowing us to assess the validity of the AAH in frogs on a continental scale. We analysed the male advertisement calls of 674 individual banjo frogs (Limnodynastes dorsalis, L. dumerilii, L. interioris and L. terraereginae) from across their range, pairing these citizen science data with remotely sensed measures of habitat complexity. While we detected considerable variation in acoustic structure within and among banjo frog species, this was not strongly correlated with habitat complexity. Thus, we found no support for the AAH. However, with our study spanning an area of over 1.7 million km2, we conducted the largest‐scale test of the AAH in frogs to date, contributing to the global understanding of acoustic signal evolution.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Assessment of the acoustic adaptation hypothesis in frogs using large‐scale citizen science data

Gillard

Rowley

2023

Journal of Zoology

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“…Our intention is that these maps assist with informing conservation of Australia's frogs, many of which are threatened, and we have made shapefiles and KML files of each individual species' map and a shapefile of the species richness map freely available for download. We intend that they be used by researchers and conservation practitioners for understanding the ecology, behaviour and conservation of Australia's frogs, as have earlier unpublished versions (Rowley et al, 2019;Mitchell et al, 2020;Weaver et al, 2020), but they are available for any non-commercial use. The species richness and individual species distributions may help inform analyses of species endemism or biogeography, or to determine the coverage of protected areas relative to the distribution of threatened species, and even identify priority areas for habitat protection.…”

Section: Discussionmentioning

confidence: 99%

Australian Frog Atlas: species’ distribution maps informed by the FrogID dataset

Cutajar¹,

Portway²,

Gillard³

et al. 2022

Tech. Rep. Aust. Mus., Online

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We use data from the citizen science project FrogID, comprised of expert-validated, spatially accurate occurrence records of frog species across Australia, to map the known distributions of Australia’s frogs. We combined over half a million occurrence records of 209 species from the FrogID dataset with expert-checked occurrence data from the national biodiversity data aggregate (Atlas of Living Australia) and published literature, to create distribution maps for all 247 native frog species known from Australia and the introduced cane toad (Rhinella marina). These maps represent the most up-to-date, accurate and detailed set of Australian frog species maps available, and reveal species richness patterns across the continent. They are an Open Access resource for researchers, conservation practitioners and land managers, with the aim of better understanding and conserving Australia’s frogs. This is version one of the Australian Frog Atlas, which we expect to update on an approximately annual basis. The Australian Frog Atlas maps—as shapefiles and in KML format—are published online as an Open Access supplemental dataset (see Cutajar et al., 2021).

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“…Like Litoria rubella , our three analysed species are relatively tolerant of anthropogenically modified habitats (Liu et al, 2021 ) and may not be representative of all species. High variability within these species' calls (Table 3 and Figure S14 ; Weaver et al, 2020 ) may reflect their behavioural flexibility, which potentially contributes to their success in variably modified landscapes (Mitchell et al, 2020 ). However, some of this variability may be driven by environmental variables such as temperature (Mitchell et al, 2020 ; Parris et al, 2009 ).…”

Section: Discussionmentioning

confidence: 99%

Anthropogenic habitat modification alters calling phenology of frogs

Liu

Callaghan

Rowley

2022

Global Change Biology

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Anuran accents: Continental‐scale citizen science data reveal spatial and temporal patterns of call variability

Abstract: Saarikettu et al., 2005), rely on vocalizations to find and secure mates for reproduction. Because these advertisement calls are species-specific (Curé et al., 2012; Searcy et al., 1981) and serve as a

Cited by 12 publications

References 121 publications

Assessment of the acoustic adaptation hypothesis in frogs using large‐scale citizen science data

Assessment of the acoustic adaptation hypothesis in frogs using large‐scale citizen science data

Australian Frog Atlas: species’ distribution maps informed by the FrogID dataset

Anthropogenic habitat modification alters calling phenology of frogs

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