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Luypaert T, Bueno AS, Haugaasen T, Peres CA. Extending Species-Area Relationships Into the Realm of Ecoacoustics: The Soundscape-Area Relationship. Ecol Lett 2024; 27:e14529. [PMID: 39388200 DOI: 10.1111/ele.14529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/16/2024] [Accepted: 09/16/2024] [Indexed: 10/15/2024]
Abstract
The rise in species richness with area is one of the few ironclad ecological relationships. Yet, little is known about the spatial scaling of alternative dimensions of diversity. Here, we provide empirical evidence for a relationship between the richness of acoustic traits emanating from a landscape, or soundscape richness, and island area, which we term the SoundScape-Area Relationship (SSAR). We show a positive relationship between the gamma soundscape richness and island area. This relationship breaks down at the smallest spatial scales, indicating a small-island effect. Moreover, we demonstrate a positive spatial scaling of the plot-scale alpha soundscape richness, but not the beta soundscape turnover, suggesting a direct effect of species on acoustic trait diversity. We conclude that the general scaling of biodiversity can be extended into the realm of ecoacoustics, implying soundscape metrics are sensitive to fundamental ecological patterns and useful in disentangling their complex mechanistic drivers.
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Affiliation(s)
- Thomas Luypaert
- Faculty of Environmental Sciences and Natural Resource Management (MINA), Norwegian University of Life Sciences, Ås, Norway
| | - Anderson S Bueno
- Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, Júlio de Castilhos, Júlio de Castilhos, RS, Brazil
| | - Torbjørn Haugaasen
- Faculty of Environmental Sciences and Natural Resource Management (MINA), Norwegian University of Life Sciences, Ås, Norway
| | - Carlos A Peres
- School of Environmental Sciences, University of East Anglia, Norwich, UK
- Instituto Juruá, Manaus, AM, Brazil
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2
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Sinsch U, Tuyisingize D, Dehling JM, van der Hoek Y. Species Assembly of Highland Anuran Communities in Equatorial Africa (Virunga Massif): Soundscape, Acoustic Niches, and Partitioning. Animals (Basel) 2024; 14:2360. [PMID: 39199894 PMCID: PMC11350915 DOI: 10.3390/ani14162360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 08/08/2024] [Accepted: 08/12/2024] [Indexed: 09/01/2024] Open
Abstract
The soundscape is a complex arrangement of sounds originating from animals and the environment. It is considered a reliable proxy for ecosystem niche structure at the community level. Acoustic communities of anuran species include advertising males, which compete in acoustic space for conspecific females. Stochastic niche theory predicts that all local niches are occupied, and the acoustic community is species-saturated. Acoustic niches, which include the spectral and temporal call structure and diel and seasonal patterns of call activity, are of similar breadth with small overlap. We tested these predictions in four communities inhabiting pristine wetlands at 2546-3188 m a.s.l. in the Volcanoes National Park, Rwanda. We sampled 74 days of hourly 5 min recordings of the local soundscape (September 2019-March 2020) using passive automated monitoring devices (Songmeter SM4). We identified species based on the advertisement call features and measured call activity as calls per minute. The communities included 4-6, species depending on wetland structure, with a shared stock of three species (Hyperolius castaneus, H. glandicolor, Leptopelis kivuensis). Independent of elevation, niche breadth for call features was similar among species and overlap reduced by partitioning the frequency range used. The diel and seasonal niche breadth of specific call activity varied according to the local temperature regime at different altitudes representing the variable part of the acoustic niche. We conclude that communities are indeed species-saturated and acoustic niches differ primarily by the fixed call features remaining locally adaptable by the modulation of the call activity pattern, corroborating the predictions of the stochastic niche theory.
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Affiliation(s)
- Ulrich Sinsch
- Institute of Integrated Sciences, Department of Biology, University of Koblenz, D-56070 Koblenz, Germany;
| | - Deogratias Tuyisingize
- Dian Fossey Gorilla Fund, Ellen DeGeneres Campus, Kinigi P.O. Box 105, Rwanda; (D.T.); (Y.v.d.H.)
| | - Jonas Maximilian Dehling
- Institute of Integrated Sciences, Department of Biology, University of Koblenz, D-56070 Koblenz, Germany;
| | - Yntze van der Hoek
- Dian Fossey Gorilla Fund, Ellen DeGeneres Campus, Kinigi P.O. Box 105, Rwanda; (D.T.); (Y.v.d.H.)
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3
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Choi N, Miller P, Hebets EA. Vibroscape analysis reveals acoustic niche overlap and plastic alteration of vibratory courtship signals in ground-dwelling wolf spiders. Commun Biol 2024; 7:23. [PMID: 38182735 PMCID: PMC10770364 DOI: 10.1038/s42003-023-05700-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 12/12/2023] [Indexed: 01/07/2024] Open
Abstract
To expand the scope of soundscape ecology to encompass substrate-borne vibrations (i.e. vibroscapes), we analyzed the vibroscape of a deciduous forest floor using contact microphone arrays followed by automated processing of large audio datasets. We then focused on vibratory signaling of ground-dwelling Schizocosa wolf spiders to test for (i) acoustic niche partitioning and (ii) plastic behavioral responses that might reduce the risk of signal interference from substrate-borne noise and conspecific/heterospecific signaling. Two closely related species - S. stridulans and S. uetzi - showed high acoustic niche overlap across space, time, and dominant frequency. Both species show plastic behavioral responses - S. uetzi males shorten their courtship in higher abundance of substrate-borne noise, S. stridulans males increased the duration of their vibratory courtship signals in a higher abundance of conspecific signals, and S. stridulans males decreased vibratory signal complexity in a higher abundance of S. uetzi signals.
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Affiliation(s)
- Noori Choi
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
- Max Planck Institute of Animal Behavior, Konstanz, Germany.
| | - Pat Miller
- University of Mississippi field station associate, Abbeville, MS, USA
| | - Eileen A Hebets
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
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4
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Staniewicz A, Sokołowska E, Muszyńska A, Budka M. Competition for acoustic space in a temperate-forest bird community. Behav Ecol 2023; 34:1043-1054. [PMID: 37969554 PMCID: PMC10636732 DOI: 10.1093/beheco/arad075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 04/03/2023] [Accepted: 09/07/2023] [Indexed: 11/17/2023] Open
Abstract
Animals that communicate by acoustic signaling share a common acoustic environment. Birds are particularly vocal examples, using a wide repertoire of broadcast signals for mate attraction and territorial defense. However, interference caused by sounds that overlap in frequency and time can disrupt signal detection and reduce reproductive success. Here, we investigated competition avoidance mechanisms used by the bird community inhabiting a primeval lowland temperate forest in Białowieża, Eastern Poland. We recorded the dawn chorus at 84 locations in early and late spring and calculated dissimilarity indices of the broadcast signals to examine how species with greater song similarities use spatial and temporal partitioning to avoid competition for acoustic space throughout the breeding season. The bird community changed its use of acoustic space throughout the day and season. Birds did not use spatial partitioning of signal space when we looked at recording locations over the whole study period, but they did in a seasonal context, with species more acoustically different than expected by chance recorded at the same point in the same part of the season. Our results also indicate that daily temporal niche partitioning may only occur at certain times before sunrise, with no evidence of large-scale temporal partitioning between species vocalizing during the same 1-min recordings in daytime. These results contribute toward our understanding of the evolution of bird communication and highlight the strategies employed by different species to improve their signal transmission.
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Affiliation(s)
- Agata Staniewicz
- Department of Behavioural Ecology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Emilia Sokołowska
- Department of Behavioural Ecology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Adrianna Muszyńska
- Department of Behavioural Ecology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Michał Budka
- Department of Behavioural Ecology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
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5
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Gomez-Morales DA, Acevedo-Charry O. Satellite remote sensing of environmental variables can predict acoustic activity of an orthopteran assemblage. PeerJ 2022; 10:e13969. [PMID: 36071828 PMCID: PMC9443809 DOI: 10.7717/peerj.13969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 08/08/2022] [Indexed: 01/19/2023] Open
Abstract
Passive acoustic monitoring (PAM) is a promising method for biodiversity assessment, which allows for longer and less intrusive sampling when compared to traditional methods (e.g., collecting specimens), by using sound recordings as the primary data source. Insects have great potential as models for the study and monitoring of acoustic assemblages due to their sensitivity to environmental changes. Nevertheless, ecoacoustic studies focused on insects are still scarce when compared to more charismatic groups. Insects' acoustic activity patterns respond to environmental factors, like temperature, moonlight, and precipitation, but community acoustic perspectives have been barely explored. Here, we provide an example of the usefulness of PAM to track temporal patterns of acoustic activity for a nocturnal assemblage of insects (Orthoptera). We integrate satellite remote sensing and astronomically measured environmental factors at a local scale in an Andean Forest of Colombia and evaluate the acoustic response of orthopterans through automated model detections of their songs for nine weeks (March and April of 2020). We describe the acoustic frequency range and diel period for the calling song of each representative species. Three species overlapped in frequency and diel acoustics but inhabit different strata: canopy, understory, and ground surface level. Based on the acoustic frequency and activity, we identified three trends: (i) both sampled cricket species call at lower frequency for shorter periods of time (dusk); (ii) all sampled katydid species call at higher frequency for longer time periods, including later hours at night; and (iii) the diel acoustic activity span window seems to increase proportionally with dominant acoustic frequency, but further research is required. We also identified a dusk chorus in which all the species sing at the same time. To quantify the acoustic response to environmental factors, we calculated a beta regression with the singing activity as a response variable and moon phase, surface temperature and daily precipitation as explanatory variables. The response to the moon phase was significant for the katydids but not for the crickets, possibly due to differences in diel activity periods. Crickets are active during dusk, thus the effects of moonlight on acoustic activity are negligible. The response to precipitation was significant for the two crickets and not for the katydids, possibly because of higher likelihood of rain interrupting crickets' shorter diel activity period. Our study shows how the local survey of orthopteran acoustic assemblages, with a species taxonomic resolution coupled with remote-sensing environmental measurements can reveal responses to environmental factors. In addition, we demonstrate how satellite data might prove to be a useful alternative source of environmental data for community studies with geographical, financial, or other constraints.
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Affiliation(s)
- Diego A. Gomez-Morales
- Departamento de Biología, Universidad Nacional de Colombia, Bogotá, Bogotá D.C., Colombia,Department of Biology, California State University, Northridge, California, United States
| | - Orlando Acevedo-Charry
- Colección de Sonidos Ambientales Mauricio Álvarez-Rebolledo, Colecciones Biológicas, Subdirección de Investigaciones, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Villa de Leyva, Boyacá, Colombia,School of Natural Resources and Environment, Department of Wildlife Ecology and Conservation & Florida Museum of Natural History, University of Florida, Gainesville, Florida, United States
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6
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Prasad VK, Chuang MF, Das A, Ramesh K, Yi Y, Dinesh KP, Borzée A. Coexisting good neighbours: acoustic and calling microhabitat niche partitioning in two elusive syntopic species of balloon frogs, Uperodon systoma and U. globulosus (Anura: Microhylidae) and potential of individual vocal signatures. BMC ZOOL 2022; 7:27. [PMID: 37170156 PMCID: PMC10127398 DOI: 10.1186/s40850-022-00132-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 05/18/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Most amphibians use a repertoire of acoustic signals to propagate signals in social contexts. The description of these repertoires provides a key towards the understanding of the behaviour of individuals and the evolutionary functions of calls. Here, we assessed the variations in advertisement calls within and between two fossorial sympatric species, Uperodon systoma and Uperodon globulosus, that share their breeding season and breeding sites. For each species, we applied Beecher’s index of total information capacity (HS) for the individual vocal signature, determined the difference in call properties and demonstrated the segregation in the calling microhabitat niche between the two species.
Results
Our results demonstrated that the advertisement calls of U. systoma are pulsatile with a call rate of 3.00 ± 0.97 calls per second while those of U. globulosus are not pulsatile with a lower call rate of 0.53 ± 0.22 calls per second. For both species, the variations in call properties among individuals was higher than that within individual, a pattern consistent with that of other fossorial anurans. The body condition and air temperature did not significantly impact the call properties of either species. The outcome of the Beecher’s index (HS) showed that the calls of U. systoma can be used to identify 14 different individuals and the calls of U. globulosus can be used to identify 26 different individuals. The statistical analyses on the advertisement call of the two species showed a significant difference in the temporal properties as the call duration, and fall time and rise time were significantly different between the two species. Lastly, we successfully demonstrated that there is a clear segregation in calling site microhabitat between the two species, where U. globulosus calls floating close to the bank of the waterbody while U. systoma calls floating further away from the bank.
Conclusion
This study highlights the potential for pre-mating isolation, character displacement and assortative mating in two syntopic fossorial anurans, leading to association between acoustic, calling microhabitat niche and body index divergence as important behavioural and ecological traits.
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7
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Allen-Ankins S, Schwarzkopf L. Using citizen science to test for acoustic niche partitioning in frogs. Sci Rep 2022; 12:2447. [PMID: 35165349 PMCID: PMC8844063 DOI: 10.1038/s41598-022-06396-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/17/2022] [Indexed: 11/22/2022] Open
Abstract
The acoustic niche hypothesis proposes that to avoid interference with breeding signals, vocal species should evolve to partition acoustic space, minimising similarity with co-occurring signals. Tests of the acoustic niche hypothesis are typically conducted using a single assemblage, with mixed outcomes, but if the process is evolutionarily important, a pattern of reduced acoustic competition should emerge, on average, over many communities. Using a continental-scale dataset derived from audio recordings collected by citizen scientists, we show that frogs do partition acoustic space. Differences in calls were predominately caused by differences in spectral, rather than temporal, features. Specifically, the 90% frequency bandwidths of observed frog assemblages overlapped less than expected, and there was greater distance between dominant frequencies than expected. To our knowledge, this study is the first to use null models to test for acoustic niche partitioning over a large geographic scale.
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8
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Farina A, Mullet TC, Bazarbayeva TA, Tazhibayeva T, Bulatova D, Li P. Perspectives on the Ecological Role of Geophysical Sounds. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.748398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Humans categorize unwanted sounds in the environment as noise. Consequently, noise is associated with negative human and ecological values, especially when it is derived from an anthropogenic source. Although evidence confirms that many machine-generated anthropogenic sounds have negative impacts on animal behavior and communication, natural sources of non-biological sound, such as wind, rain, running water, and sea waves (geophonies) have also been categorized as noise and are frequently dismissed or mischaracterized in acoustic studies as an outside factor of acoustic habitats rather than an integrated sonic component of ecological processes and species adaptations. While the proliferation of machine-generated sound in the Biosphere has become an intrusive phenomenon in recent history, geophony has shaped the Earth’s sonic landscapes for billions of years. Therefore, geophonies have very important sonic implications to the evolution and adaptation of soniferous species, forming essential ecological and semiotical relationships. This creates a need to distinguish geophonies from machine-generated sounds and how species respond to each accordingly, especially given their acoustic similarities in the frequency spectrum. Here, we introduce concepts and terminology that address these differences in the context of ecoacoustics. We also discuss how Acoustic Complexity Indices (ACIs) can offer new possibilities to quantifiably evaluate geophony in relation to their sonic contest.
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Kimura SS, Sagara T, Yoda K, Ponnampalam LS. Acoustic identification of the sympatric species Indo-Pacific finless porpoise and Indo-Pacific humpback dolphin: an example from Langkawi, Malaysia. BIOACOUSTICS 2021. [DOI: 10.1080/09524622.2021.1998796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Satoko S. Kimura
- Distinguished Doctoral Program of Platforms, Center for Educational Program Promotion in Graduate School, Kyoto University, Yoshida Hon-machi, Sakyo-ku, Kyoto, Japan
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, Japan
- Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan
| | - Tomoka Sagara
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, Japan
| | - Ken Yoda
- Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan
| | - Louisa S. Ponnampalam
- The MareCet Research Organization, Subang Jaya, Malaysia
- Institute of Ocean and Earth Sciences, Universiti Malaya, Kuala Lumpur, Malaysia
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10
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Hart PJ, Ibanez T, Paxton K, Tredinnick G, Sebastián-González E, Tanimoto-Johnson A. Timing Is Everything: Acoustic Niche Partitioning in Two Tropical Wet Forest Bird Communities. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.753363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
When acoustic signals sent from individuals overlap in frequency and time, acoustic interference and signal masking may occur. Under the acoustic niche hypothesis (ANH), signaling behavior has evolved to partition acoustic space and minimize overlap with other calling individuals through selection on signal structure and/or the sender’s ability to adjust the timing of signals. Alternately, under the acoustic clustering hypothesis, there is potential benefit to convergence and synchronization of the structural or temporal characteristics of signals in the avian community, and organisms produce signals that overlap more than would be expected by chance. Interactive communication networks may also occur, where species living together are more likely to have songs with convergent spectral and or temporal characteristics. In this study, we examine the fine-scale use of acoustic space in montane tropical wet forest bird communities in Costa Rica and Hawai‘i. At multiple recording stations in each community, we identified the species associated with each recorded signal, measured observed signal overlap, and used null models to generate random distributions of expected signal overlap. We then compared observed vs. expected signal overlap to test predictions of the acoustic niche and acoustic clustering hypotheses. We found a high degree of overlap in the signal characteristics (frequency range) of species in both Costa Rica and Hawai‘i, however, as predicted under ANH, species significantly reduced observed overlap relative to the random distribution through temporal partitioning. There was little support for acoustic clustering or the prediction of the network hypothesis that species segregate across the landscape based on the frequency range of their vocalizations. These findings constitute strong support that there is competition for acoustic space in these signaling communities, and this has resulted primarily in temporal partitioning of the soundscape.
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Martin M, Gridley T, Harvey Elwen S, Charrier I. Vocal repertoire, micro-geographical variation and within-species acoustic partitioning in a highly colonial pinniped, the Cape fur seal. ROYAL SOCIETY OPEN SCIENCE 2021; 8:202241. [PMID: 34729204 PMCID: PMC8548791 DOI: 10.1098/rsos.202241] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 10/04/2021] [Indexed: 06/01/2023]
Abstract
Communication is fundamental for the survival of animal species as signals are involved in many social interactions (mate selection, parental care, collective behaviours). The acoustic channel is an important modality used by birds and mammals to reliably exchange information among individuals. In group-living species, the propagation of vocal signals is limited due to the density of individuals and the background noise. Vocal exchanges are, therefore, challenging. This study is the first investigation into the acoustic communication system of the Cape fur seal (CFS), one of the most colonial mammals with breeding colonies of hundreds of thousands of individuals. We described the acoustic features and social function of five in-air call types from data collected at two colonies. Intra-species variations in these vocalizations highlight a potential ability to convey information about the age and/or sex of the emitter. Using two classification methods, we found that the five call types have distinguishable frequency features and occupy distinct acoustic niches indicating acoustic partitioning in the repertoire. The CFS vocalizations appear to contain characteristics advantageous for discrimination among individuals, which could enhance social interactions in their noisy and confusing acoustic environment. This study provides a basis for our understanding of the CFS acoustic communication system.
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Affiliation(s)
- Mathilde Martin
- Equipe Communications Acoustiques, Neuro-PSI, CNRS UMR 9197, Université Paris Saclay, Orsay, France
- Sea Search Research and Conservation NPC, 4 Bath Road, Muizenberg, Cape Town 7945, South Africa
| | - Tess Gridley
- Sea Search Research and Conservation NPC, 4 Bath Road, Muizenberg, Cape Town 7945, South Africa
- Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Stellenbosch 7605, South Africa
| | - Simon Harvey Elwen
- Sea Search Research and Conservation NPC, 4 Bath Road, Muizenberg, Cape Town 7945, South Africa
- Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Stellenbosch 7605, South Africa
| | - Isabelle Charrier
- Equipe Communications Acoustiques, Neuro-PSI, CNRS UMR 9197, Université Paris Saclay, Orsay, France
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Arriaga-Jaramillo FG, Cuellar-Valencia OM, García-Gómez I, Ceballos-Castro I, Bolívar-García W, Velásquez-Trujillo DA, Ortiz-Baez AS, Ospina-Sarria JJ. Acoustic segregation of five sympatric and syntopic species of genus Pristimantis (Anura: Strabomantidae) from Western Colombia. STUDIES ON NEOTROPICAL FAUNA AND ENVIRONMENT 2021. [DOI: 10.1080/01650521.2021.1944758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Fray Geovanny Arriaga-Jaramillo
- Calima, Fundación para la Investigación de la Biodiversidad y Conservación en el Trópico, Cali, Colombia
- Departamento de Biología, Grupo de investigación en Ecología Animal, Universidad del Valle, Cali, Colombia
| | - Oscar Mauricio Cuellar-Valencia
- Calima, Fundación para la Investigación de la Biodiversidad y Conservación en el Trópico, Cali, Colombia
- Departamento de Biología, Grupo de investigación en Ecología Animal, Universidad del Valle, Cali, Colombia
| | - Isabella García-Gómez
- Calima, Fundación para la Investigación de la Biodiversidad y Conservación en el Trópico, Cali, Colombia
- Departamento de Biología, Grupo de investigación en Ecología Animal, Universidad del Valle, Cali, Colombia
| | - Irene Ceballos-Castro
- Calima, Fundación para la Investigación de la Biodiversidad y Conservación en el Trópico, Cali, Colombia
- Departamento de Biología, Grupo de investigación en Ecología Animal, Universidad del Valle, Cali, Colombia
| | - Wilmar Bolívar-García
- Calima, Fundación para la Investigación de la Biodiversidad y Conservación en el Trópico, Cali, Colombia
- Departamento de Biología, Grupo de investigación en Ecología Animal, Universidad del Valle, Cali, Colombia
| | - David Andrés Velásquez-Trujillo
- Calima, Fundación para la Investigación de la Biodiversidad y Conservación en el Trópico, Cali, Colombia
- Departamento de Biología, Grupo de investigación en Ecología Animal, Universidad del Valle, Cali, Colombia
| | - Ayda Susana Ortiz-Baez
- Calima, Fundación para la Investigación de la Biodiversidad y Conservación en el Trópico, Cali, Colombia
- Marie Bashir Institute for Infectious Diseases and Biosecurity, Charles Perkins Centre, School of Life & Environmental Sciences and Sydney Medical School, University of Sydney, Sydney, Australia
| | - Jhon Jairo Ospina-Sarria
- Calima, Fundación para la Investigación de la Biodiversidad y Conservación en el Trópico, Cali, Colombia
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Rodella Manzano MC, Chagas DG, de Sena Ferreira JM, Sawaya RJ, Llusia D. Reinforced acoustic divergence in two syntopic neotropical treefrogs. BIOACOUSTICS 2021. [DOI: 10.1080/09524622.2021.1899987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Maria Carolina Rodella Manzano
- Programa de Pós-Graduação em Evolução e Diversidade, Universidade Federal do ABC – UFABC, São Bernardo do Campo, Brazil
- Terrestrial Ecology Group, Departamento de Ecología, Universidad Autónoma de Madrid, Madrid, Spain
- Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Paulo, UNIFESP, Diadema, Brazil
| | - Daniel Garcia Chagas
- Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Paulo, UNIFESP, Diadema, Brazil
| | | | - Ricardo J. Sawaya
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC – UFABC, São Bernardo do Campo, Brazil
| | - Diego Llusia
- Terrestrial Ecology Group, Departamento de Ecología, Universidad Autónoma de Madrid, Madrid, Spain
- Centro de Investigación en Biodiversidad y Cambio Global, Universidad Autónoma de Madrid, Madrid, Spain
- Laboratório de Herpetologia e Comportamento Animal, Departamento de Ecologia, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Campus Samambaia, Goiânia, Brazil
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14
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Lee N, Christensen-Dalsgaard J, White LA, Schrode KM, Bee MA. Lung mediated auditory contrast enhancement improves the Signal-to-noise ratio for communication in frogs. Curr Biol 2021; 31:1488-1498.e4. [PMID: 33667371 DOI: 10.1016/j.cub.2021.01.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/23/2020] [Accepted: 01/13/2021] [Indexed: 11/29/2022]
Abstract
Environmental noise is a major source of selection on animal sensory and communication systems. The acoustic signals of other animals represent particularly potent sources of noise for chorusing insects, frogs, and birds, which contend with a multi-species analog of the human "cocktail party problem" (i.e., our difficulty following speech in crowds). However, current knowledge of the diverse adaptations that function to solve noise problems in nonhuman animals remains limited. Here, we show that a lung-to-ear sound transmission pathway in frogs serves a heretofore unknown noise-control function in vertebrate hearing and sound communication. Inflated lungs improve the signal-to-noise ratio for communication by enhancing the spectral contrast in received vocalizations in ways analogous to signal processing algorithms used in hearing aids and cochlear implants. Laser vibrometry revealed that the resonance of inflated lungs selectively reduces the tympanum's sensitivity to frequencies between the two spectral peaks present in conspecific mating calls. Social network analysis of continent-scale citizen science data on frog calling behavior revealed that the calls of other frog species in multi-species choruses can be a prominent source of environmental noise attenuated by the lungs. Physiological modeling of peripheral frequency tuning indicated that inflated lungs could reduce both auditory masking and suppression of neural responses to mating calls by environmental noise. Together, these data suggest an ancient adaptation for detecting sound via the lungs has been evolutionarily co-opted to create auditory contrast enhancement that contributes to solving a multi-species cocktail party problem.
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Affiliation(s)
- Norman Lee
- Department of Biology, St. Olaf College, Northfield, MN 55057, USA.
| | | | - Lauren A White
- Department of Ecology, Evolution, and Behavior, University of Minnesota - Twin Cities, St. Paul, MN 55108, USA
| | - Katrina M Schrode
- Graduate Program in Neuroscience, University of Minnesota - Twin Cities, Minneapolis, MN 55455, USA
| | - Mark A Bee
- Department of Ecology, Evolution, and Behavior, University of Minnesota - Twin Cities, St. Paul, MN 55108, USA; Graduate Program in Neuroscience, University of Minnesota - Twin Cities, Minneapolis, MN 55455, USA
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15
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Kleyn T, Cruz Kaizer M, Passos LF. Sharing sound: Avian acoustic niches in the Brazilian Atlantic Forest. Biotropica 2021. [DOI: 10.1111/btp.12907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tristan Kleyn
- Department of Natural Sciences & Psychology Liverpool John Moores University Liverpool UK
| | - Mariane Cruz Kaizer
- School of Science, Engineering and Environment University of Salford‐Manchester Salford UK
| | - Luiza F. Passos
- Department of Natural Sciences & Psychology Liverpool John Moores University Liverpool UK
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16
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Stream Amphibian Detectability and Habitat Associations in a Reduced Impact Logging Concession in Malaysian Borneo. J HERPETOL 2020. [DOI: 10.1670/19-136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Coss DA, Hunter KL, Taylor RC. Silence is sexy: soundscape complexity alters mate choice in túngara frogs. Behav Ecol 2020. [DOI: 10.1093/beheco/araa091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Many animals acoustically communicate in large aggregations, producing biotic soundscapes. In turn, these natural soundscapes can influence the efficacy of animal communication, yet little is known about how variation in soundscape interferes with animals that communicate acoustically. We quantified this variation by analyzing natural soundscapes with the mid-frequency cover index and by measuring the frequency ranges and call rates of the most common acoustically communicating species. We then tested female mate choice in the túngara frog (Physalaemus pustulosus) in varying types of background chorus noise. We broadcast two natural túngara frog calls as a stimulus and altered the densities (duty cycles) of natural calls from conspecifics and heterospecifics to form the different types of chorus noise. During both conspecific and heterospecific chorus noise treatments, females demonstrated similar preferences for advertisement calls at low and mid noise densities but failed to express a preference in the presence of high noise density. Our data also suggest that nights with high densities of chorus noise from conspecifics and heterospecifics are common in some breeding ponds, and on nights with high noise density, the soundscape plays an important role diminishing the accuracy of female decision-making.
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Affiliation(s)
- Derek A Coss
- Department of Biology, Salisbury University, Salisbury, MD, USA
| | | | - Ryan C Taylor
- Department of Biology, Salisbury University, Salisbury, MD, USA
- Smithsonian Tropical Research Institute, Apartado, Balboa, Ancón, Republic of Panama
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18
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Figueroa-Huitrón R, Ochoa-Ochoa LM, Sánchez-Ochoa D. Calling phenology of four anurans in tropical Mexico. REV MEX BIODIVERS 2020. [DOI: 10.22201/ib.20078706e.2020.91.2945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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19
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Ulloa JS, Aubin T, Llusia D, Courtois ÉA, Fouquet A, Gaucher P, Pavoine S, Sueur J. Explosive breeding in tropical anurans: environmental triggers, community composition and acoustic structure. BMC Ecol 2019; 19:28. [PMID: 31324238 PMCID: PMC6639928 DOI: 10.1186/s12898-019-0243-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 06/15/2019] [Indexed: 11/28/2022] Open
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- and 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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Affiliation(s)
- Juan Sebastian Ulloa
- Institut Systématique Evolution Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, EPHE, 57 Rue Cuvier, CP 50, 75005, Paris, France.
- Equipe Communications Acoustiques, UMR 9197, Neuro-PSI-CNRS, Université Paris-Sud, Bat.446, 91405, Orsay, France.
| | - Thierry Aubin
- Equipe Communications Acoustiques, UMR 9197, Neuro-PSI-CNRS, Université Paris-Sud, Bat.446, 91405, Orsay, France
| | - Diego Llusia
- Institut Systématique Evolution Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, EPHE, 57 Rue Cuvier, CP 50, 75005, Paris, France
- Equipe Communications Acoustiques, UMR 9197, Neuro-PSI-CNRS, Université Paris-Sud, Bat.446, 91405, Orsay, France
- Terrestrial Ecology Group (TEG), Departamento de Ecología, Facultad de Ciencias, Universidad Autónoma de Madrid, C / Darwin, 2, Edificio de Biología, C-211, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Élodie A Courtois
- Laboratoire Ecologie, Évolution et Interactions des Systèmes Amazoniens (LEEISA) UMSR 3456 (CNRS/IFREMER/Université de Guyane), Centre de recherche de Montabo, Université de Guyane, 275, route de Montabo, Cayenne, BP 70620, 97334 CAYENNE Cedex, France
| | - Antoine Fouquet
- Laboratoire Ecologie, Évolution et Interactions des Systèmes Amazoniens (LEEISA) UMSR 3456 (CNRS/IFREMER/Université de Guyane), Centre de recherche de Montabo, Université de Guyane, 275, route de Montabo, Cayenne, BP 70620, 97334 CAYENNE Cedex, France
- Laboratoire Evolution & Diversité Biologique, Université Toulouse III Paul Sabatier, Bâtiment 4R1, 118, Route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Philippe Gaucher
- Laboratoire Ecologie, Évolution et Interactions des Systèmes Amazoniens (LEEISA) UMSR 3456 (CNRS/IFREMER/Université de Guyane), Centre de recherche de Montabo, Université de Guyane, 275, route de Montabo, Cayenne, BP 70620, 97334 CAYENNE Cedex, France
| | - Sandrine Pavoine
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, 57 Rue Cuvier, CP 135, 75005, Paris, France
| | - Jérôme Sueur
- Institut Systématique Evolution Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, EPHE, 57 Rue Cuvier, CP 50, 75005, Paris, France
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Bignotte-Giró I, Fong G. A, López-Iborra GM. Acoustic niche partitioning in five Cuban frogs of the genus Eleutherodactylus. AMPHIBIA-REPTILIA 2019. [DOI: 10.1163/15685381-17000170] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Acoustic segregation is a way to reduce competition and allows for species coexistence within anuran communities. Thus, separation in at least one acoustic niche dimension is expected, which also contributes to achieving effective communication among frogs. Here we studied an assemblage of five terrestrial egg-laying anuran species, all in the genus Eleutherodactylus, in a montane rainforest in eastern Cuba. Our aim was to determine if partitioning exists between these species in any dimension (time, signal frequency or space) of the acoustic niche. The studied assemblage had the following characteristics: (1) there was one diurnal species, two species with calling activity throughout the day and two species that call at night; (2) only two species overlapped in call frequencies and most had different calls, both in terms of dominant frequencies and in temporal characteristics; and (3) males of the species that overlapped in vocalizing time or signal frequency used different calling microhabitats or heights. This study provides evidence for the acoustic niche hypothesis in anurans, showing low probabilities of interference in sound communication among these frogs. The five species were separated in at least one of the three acoustic dimensions (calling time, frequency and site) as it occurs in mainland communities with more sympatric species of several genera. Conversely, species in single-genus communities studied in Puerto Rico overlapped completely in calling times. This seems to be due to the higher number of sympatric species at our site.
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Affiliation(s)
- Irelis Bignotte-Giró
- 1Centro Oriental de Ecosistemas y Biodiversidad (BIOECO), Museo de Historia Natural “Tomás Romay”, Enramadas # 601, Santiago de Cuba 90100, Cuba
| | - Ansel Fong G.
- 1Centro Oriental de Ecosistemas y Biodiversidad (BIOECO), Museo de Historia Natural “Tomás Romay”, Enramadas # 601, Santiago de Cuba 90100, Cuba
| | - Germán M. López-Iborra
- 2Departamento de Ecología/IMEM Ramon Margalef, Universidad de Alicante, Apdo. Correos 99, 03080 Alicante, España
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21
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Garey MV, Provete DB, Gonçalves-Souza T, Ouchi-Melo LS, Haddad CFB, Rossa-Feres DC. Phylogenetic and adaptive components of the anuran advertisement call correlate with temporal species co-occurrence. Biol J Linn Soc Lond 2018. [DOI: 10.1093/biolinnean/bly129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Michel Varajão Garey
- Laboratório de Ecologia de Metacomunidades, Instituto Latino-Americano de Ciências da Vida e da Natureza, Universidade Federal da Integração Latino-Americana, Foz do Iguaçu, Paraná, Brazil
| | - Diogo B Provete
- Setor de Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Mato Grosso do Sul, Brazil
| | - Thiago Gonçalves-Souza
- Laboratório de Ecologia Filogenética e Funcional, Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - Lilian Sayuri Ouchi-Melo
- Pós-Graduação em Biologia Animal, Departamento de Zoologia e Botânica, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
| | - Célio F B Haddad
- Departamento de Zoologia and Centro de Aquicultura (CAUNESP), Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, São Paulo, Brazil
| | - Denise C Rossa-Feres
- Departamento de Zoologia e Botânica, Instituto de Biociências, Letras e Ciências Exatas, Universidade Estadual Paulista, São José do Rio Preto, São Paulo, Brazil
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22
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Piel AK. Temporal patterns of chimpanzee loud calls in the Issa Valley, Tanzania: Evidence of nocturnal acoustic behavior in wild chimpanzees. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2018; 166:530-540. [DOI: 10.1002/ajpa.23609] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 04/06/2018] [Accepted: 04/28/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Alex K. Piel
- School of Natural Sciences and PsychologyLiverpool John Moores UniversityLiverpool United Kingdom
- Greater Mahale Ecosystem Research and Conservation (Project) Tanzania
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23
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Benevides FL, Mautz WJ, Jacobsen CJ, Hara AH. Estimating density of calling male Eleutherodactylus coqui in Hawaii from audio recordings of the nighttime frog chorus. BIOACOUSTICS 2017. [DOI: 10.1080/09524622.2017.1399467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Francis L. Benevides
- Tropical Conservation Biology and Environmental Science, University of Hawaii at Hilo, Hilo, HI, USA
| | - William J. Mautz
- Department of Biology, University of Hawaii at Hilo, Hilo, HI, USA
| | | | - Arnold H. Hara
- College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, Honolulu, HI, USA
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Campos-Cerqueira M, Aide TM. Lowland extirpation of anuran populations on a tropical mountain. PeerJ 2017; 5:e4059. [PMID: 29158987 PMCID: PMC5694215 DOI: 10.7717/peerj.4059] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 10/28/2017] [Indexed: 12/13/2022] Open
Abstract
Background Climate change and infectious diseases threaten animal and plant species, even in natural and protected areas. To cope with these changes, species may acclimate, adapt, move or decline. Here, we test for shifts in anuran distributions in the Luquillo Mountains (LM), a tropical montane forest in Puerto Rico by comparing species distributions from historical (1931–1989)and current data (2015/2016). Methods Historical data, which included different methodologies, were gathered through the Global Biodiversity Information Facility (GBIF) and published literature, and the current data were collected using acoustic recorders along three elevational transects. Results In the recordings, we detected the 12 native frog species known to occur in LM. Over a span of ∼25 years, two species have become extinct and four species suffered extirpation in lowland areas. As a consequence, low elevation areas in the LM (<300 m) have lost at least six anuran species. Discussion We hypothesize that these extirpations are due to the effects of climate change and infectious diseases, which are restricting many species to higher elevations and a much smaller area. Land use change is not responsible for these changes because LM has been a protected reserve for the past 80 years. However, previous studies indicate that (1) climate change has increased temperatures in Puerto Rico, and (2) Batrachochytrium dendrobatidis (Bd) was found in 10 native species and early detection of Bd coincides with anurans declines in the LM. Our study confirms the general impressions of amphibian population extirpations at low elevations, and corroborates the levels of threat assigned by IUCN.
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Affiliation(s)
| | - T Mitchell Aide
- University of Puerto Rico-Rio Piedras, San Juan, Puerto Rico
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25
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Species Richness (of Insects) Drives the Use of Acoustic Space in the Tropics. REMOTE SENSING 2017. [DOI: 10.3390/rs9111096] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Jahn O, Ganchev TD, Marques MI, Schuchmann KL. Automated Sound Recognition Provides Insights into the Behavioral Ecology of a Tropical Bird. PLoS One 2017; 12:e0169041. [PMID: 28085893 PMCID: PMC5235375 DOI: 10.1371/journal.pone.0169041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 12/09/2016] [Indexed: 11/28/2022] Open
Abstract
Computer-assisted species recognition facilitates the analysis of relevant biological information in continuous audio recordings. In the present study, we assess the suitability of this approach for determining distinct life-cycle phases of the Southern Lapwing Vanellus chilensis lampronotus based on adult vocal activity. For this purpose we use passive 14-min and 30-min soundscape recordings (n = 33 201) collected in 24/7 mode between November 2012 and October 2013 in Brazil’s Pantanal wetlands. Time-stamped detections of V. chilensis call events (n = 62 292) were obtained with a species-specific sound recognizer. We demonstrate that the breeding season fell in a three-month period from mid-May to early August 2013, between the end of the flood cycle and the height of the dry season. Several phases of the lapwing’s life history were identified with presumed error margins of a few days: pre-breeding, territory establishment and egg-laying, incubation, hatching, parental defense of chicks, and post-breeding. Diurnal time budgets confirm high acoustic activity levels during midday hours in June and July, indicative of adults defending young. By August, activity patterns had reverted to nonbreeding mode, with peaks around dawn and dusk and low call frequency during midday heat. We assess the current technological limitations of the V. chilensis recognizer through a comprehensive performance assessment and scrutinize the usefulness of automated acoustic recognizers in studies on the distribution pattern, ecology, life history, and conservation status of sound-producing animal species.
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Affiliation(s)
- Olaf Jahn
- National Institute for Science and Technology in Wetlands (INAU), Science without Borders Program, Federal University of Mato Grosso (UFMT), Cuiabá, Mato Grosso, Brazil
- Zoological Research Museum A. Koenig (ZFMK), Bonn, North Rhine-Westphalia, Germany
- * E-mail:
| | - Todor D. Ganchev
- National Institute for Science and Technology in Wetlands (INAU), Science without Borders Program, Federal University of Mato Grosso (UFMT), Cuiabá, Mato Grosso, Brazil
- Department of Computer Science and Engineering, Technical University of Varna, Varna, Varna, Bulgaria
| | - Marinez I. Marques
- National Institute for Science and Technology in Wetlands (INAU), Science without Borders Program, Federal University of Mato Grosso (UFMT), Cuiabá, Mato Grosso, Brazil
- Institute of Biosciences, UFMT, Cuiabá, Mato Grosso, Brazil
| | - Karl-L. Schuchmann
- National Institute for Science and Technology in Wetlands (INAU), Science without Borders Program, Federal University of Mato Grosso (UFMT), Cuiabá, Mato Grosso, Brazil
- Zoological Research Museum A. Koenig (ZFMK), Bonn, North Rhine-Westphalia, Germany
- Institute of Biosciences, UFMT, Cuiabá, Mato Grosso, Brazil
- University of Bonn, Bonn, North Rhine-Westphalia, Germany
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Krishnan A, Tamma K. Divergent morphological and acoustic traits in sympatric communities of Asian barbets. ROYAL SOCIETY OPEN SCIENCE 2016; 3:160117. [PMID: 27853589 PMCID: PMC5108939 DOI: 10.1098/rsos.160117] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 07/07/2016] [Indexed: 05/19/2023]
Abstract
The opposing effects of environmental filtering and competitive interactions may influence community assembly and coexistence of related species. Competition, both in the domain of ecological resources, and in the sensory domain (for example, acoustic interference) may also result in sympatric species evolving divergent traits and niches. Delineating these scenarios within communities requires understanding trait distributions and phylogenetic structure within the community, as well as patterns of trait evolution. We report that sympatric assemblages of Asian barbets (frugivorous canopy birds) consist of a random phylogenetic sample of species, but are divergent in both morphological and acoustic traits. Additionally, we find that morphology is more divergent than expected under Brownian evolution, whereas vocal frequency evolution is close to the pattern expected under Brownian motion (i.e. a random walk). Together, these patterns are consistent with a role for competition or competitive exclusion in driving community assembly. Phylogenetic patterns of morphological divergence between related species suggest that these traits are key in species coexistence. Because vocal frequency and size are correlated in barbets, we therefore hypothesize that frequency differences between sympatric barbets are a by-product of their divergent morphologies.
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Affiliation(s)
- Anand Krishnan
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, USA
- Authors for correspondence: Anand Krishnan e-mail: ;
| | - Krishnapriya Tamma
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, GKVK Campus, Bangalore 560065, Karnataka, India
- Authors for correspondence: Krishnapriya Tamma e-mail:
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Brauer CL, Donovan TM, Mickey RM, Katz J, Mitchell BR. A comparison of acoustic monitoring methods for common anurans of the northeastern United States. WILDLIFE SOC B 2016. [DOI: 10.1002/wsb.619] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Corinne L. Brauer
- Vermont Cooperative Fish and Wildlife Research Unit; Rubenstein School of Environment and Natural Resources; University of Vermont; Burlington VT 05405 USA
| | - Therese M. Donovan
- United States Geological Survey; Vermont Cooperative Fish and Wildlife Research Unit; University of Vermont; Burlington VT 05405 USA
| | - Ruth M. Mickey
- Department of Mathematics and Statistics; University of Vermont; Burlington VT 05405 USA
| | - Jonathan Katz
- Vermont Cooperative Fish and Wildlife Research Unit; Rubenstein School of Environment and Natural Resources; University of Vermont; Burlington VT 05405 USA
| | - Brian R. Mitchell
- Northeast Temperate Network; National Park Service; 54 Elm Street Woodstock VT 05091 USA
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Environmental constraints drive the partitioning of the soundscape in fishes. Proc Natl Acad Sci U S A 2015; 112:6092-7. [PMID: 25848025 DOI: 10.1073/pnas.1424667112] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The underwater environment is more and more being depicted as particularly noisy, and the inventory of calling fishes is continuously increasing. However, it currently remains unknown how species share the soundscape and are able to communicate without misinterpreting the messages. Different mechanisms of interference avoidance have been documented in birds, mammals, and frogs, but little is known about interference avoidance in fishes. How fish thus partition the soundscape underwater remains unknown, as acoustic communication and its organization have never been studied at the level of fish communities. In this study, passive acoustic recordings were used to inventory sounds produced in a fish community (120 m depth) in an attempt to understand how different species partition the acoustic environment. We uncovered an important diversity of fish sounds, and 16 of the 37 different sounds recorded were sufficiently abundant to use in a quantitative analysis. We show that sonic activity allows a clear distinction between a diurnal and a nocturnal group of fishes. Moreover, frequencies of signals made during the day overlap, whereas there is a clear distinction between the different representatives of the nocturnal callers because of a lack of overlap in sound frequency. This first demonstration, to our knowledge, of interference avoidance in a fish community can be understood by the way sounds are used. In diurnal species, sounds are mostly used to support visual display, whereas nocturnal species are generally deprived of visual cues, resulting in acoustic constraints being more important.
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