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Maldonado-Coelho M, Dos Santos SS, Isler ML, Svensson-Coelho M, Sotelo-Muñoz M, Miyaki CY, Ricklefs RE, Blake JG. Evolutionary and Ecological Processes Underlying Geographic Variation in Innate Bird Songs. Am Nat 2023; 202:E31-E52. [PMID: 37531273 DOI: 10.1086/725016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
AbstractEcological and evolutionary processes underlying spatial variation in signals involved in mate recognition and reproductive isolation are crucial to understanding the causes of population divergence and speciation. Here, to test hypotheses concerning the causes of song divergence, we examine how songs of two sister species of Atlantic Forest suboscine birds with innate songs, the Pyriglena fire-eye antbirds, vary across their ranges. Specifically, we evaluated the influence of isolation by distance and introgressive hybridization, as well as morphological and environmental variation, on geographic variation in male songs. Analyses based on 496 male vocalizations from 63 locations across a 2,200-km latitudinal transect revealed clinal changes in the structure of songs and showed that introgressive hybridization increases both the variability and the homogenization of songs in the contact zone between the two species. We also found that isolation by distance, morphological constraints, the environment, and genetic introgression independently predicted song variation across geographic space. Our study shows the importance of an integrative approach that investigates the roles of distinct ecological and evolutionary processes that influence acoustic signal evolution.
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2
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Memet E, Farrell B, Mahadevan L. An allometric prior enhances acoustic niche partitioning signal. J R Soc Interface 2022; 19:20220421. [PMID: 36514889 PMCID: PMC9748494 DOI: 10.1098/rsif.2022.0421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The acoustic niche hypothesis suggests that vocal signals of sympatric animal species are structured so as to minimize acoustic interference and facilitate communication. Accordingly, each species attempts to establish its own acoustic bandwidth so that intra-species signals are not masked. Detecting a non-random partitioning of the frequency spectrum among sympatric species could constitute evidence for the existence of acoustic avoidance behaviour. However, results from previous studies have been mixed or inconclusive, possibly as a consequence of overlooking the importance of physiological and ecological constraints. Here we introduce an improved test that incorporates prior information on body mass to account for the allometric correlation between mass (size) and vocalization frequency. By correcting for the bias induced by this correlation, the new test uncovers evidence of acoustic niche partitioning as a function of frequency in several tropical bird communities that would not be detected under a more standard test. Separately, we introduce a spatial version of the acoustic partitioning test which, in theory, could prove effective when data are collected from multiple sites located in close spatial proximity.
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Affiliation(s)
- Edvin Memet
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Brian Farrell
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
| | - L. Mahadevan
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA,Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA,Department of Physics, Harvard University, Cambridge, MA 02138, USA
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3
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Macedo G, Marcondes RS, Biondo C, Bravo GA, Derryberry EP. The evolution of sex similarities in social signals: Climatic seasonality is associated with lower sexual dimorphism and greater elaboration of female and male signals in antbirds (Thamnophilidae). Evolution 2022; 76:2893-2915. [PMID: 36237126 DOI: 10.1111/evo.14638] [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: 04/05/2022] [Revised: 09/02/2022] [Accepted: 09/05/2022] [Indexed: 01/22/2023]
Abstract
Selection on signals that mediate social competition varies with resource availability. Climate regulates resource availability, which may affect the strength of competition and selection on signals. Traditionally, this meant that more seasonal, colder, or dryer-overall harsher-environments should favor the elaboration of male signals under stronger male-male competition, increasing sexual dimorphism. However, females also use signals to compete; thus, harsher environments could strengthen competition and favor elaboration of signals in both sexes, decreasing sexual dimorphism. Alternatively, harsher environments could decrease sexual dimorphism due to scarcer resources to invest in signal elaboration in both sexes. We evaluated these contrasting hypotheses in antbirds, a family of Neotropical passerines that varies in female and male signals and occurs across diverse climatic regimes. We tested the association of sexual dimorphism of plumage coloration and songs with temperature, precipitation, and their seasonality. We found that greater seasonality is associated with lower sexual dimorphism in plumage coloration and greater elaboration of visual signals in both sexes, but not acoustic signals. Our results suggest that greater seasonality may be associated with convergent elaboration of female and male visual signals, highlighting the role of signals of both sexes in the evolution of sexual dimorphism.
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Affiliation(s)
- Gabriel Macedo
- Center for Natural Sciences and Humanities, Federal University of ABC (UFABC), São Bernardo do Campo, SP, 09606-045, Brazil.,Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, 37996
| | - Rafael S Marcondes
- Museum of Natural Science, Louisiana State University, Baton Rouge, Louisiana, 70803.,Current Address: Department of Biosciences, Rice University, Houston, Texas, 77005
| | - Cibele Biondo
- Center for Natural Sciences and Humanities, Federal University of ABC (UFABC), São Bernardo do Campo, SP, 09606-045, Brazil
| | - Gustavo A Bravo
- Sección de Ornitología, Colecciones Biológicas, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Villa de Leyva, 154001, Colombia.,Department of Organismic and Evolutionary Biology and Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts, 02138
| | - Elizabeth P Derryberry
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, 37996
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4
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Sebastianelli M, Lukhele SM, Nwankwo EC, Hadjioannou L, Kirschel ANG. Continent-wide patterns of song variation predicted by classical rules of biogeography. Ecol Lett 2022; 25:2448-2462. [PMID: 36124660 PMCID: PMC9826498 DOI: 10.1111/ele.14102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 08/12/2022] [Accepted: 08/17/2022] [Indexed: 01/11/2023]
Abstract
Physiological constraints related to atmospheric temperature pose a limit to body and appendage size in endothermic animals. This relationship has been summarised by two classical principles of biogeography: Bergmann's and Allen's rules. Body size may also constrain other phenotypic traits important in ecology, evolution and behaviour, and such effects have seldom been investigated at a continental scale. Through a multilevel-modelling approach, we demonstrate that continent-wide morphology of related African barbets follows predictions of Bergmann's rule, and that body size mirrors variation in song pitch, an acoustic trait important in species recognition and sexual selection. Specifically, effects on song frequency in accordance with Bergmann's rule dwarf those of acoustic adaptation at a continental scale. Our findings suggest that macroecological patterns of body size can influence phenotypic traits important in ecology and evolution, and provide a baseline for further studies on the effects of environmental change on bird song.
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Affiliation(s)
| | | | | | | | - Alexander N. G. Kirschel
- Department of Biological SciencesUniversity of CyprusNicosiaCyprus,University of California Los AngelesDepartment of Ecology and Evolutionary BiologyLos AngelesCaliforniaUSA,Edward Grey Institute, Department of ZoologyUniversity of OxfordOxfordUK
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5
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Chen Y, Li L, Zhu X, Shen Y, Ma A, Zhang X, Chen P, Lu C. Urban Low-Rise Residential Areas Provide Preferred Song Post Sites for a Resident Songbird. Animals (Basel) 2022; 12:ani12182436. [PMID: 36139294 PMCID: PMC9494978 DOI: 10.3390/ani12182436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/05/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Urbanization is expanding rapidly worldwide, and brings additional selection pressure on animals. The song differences between urban and rural songbirds have been widely verified, but the effects of urban morphological variation on long-settled urban birds have been poorly explored. Here, we investigated the distribution and song differences of a common resident songbird—the oriental magpie-robin (Copsychus saularis) between three urban morphology types (i.e., urban park, low-rise residential area, and high-rise residential area). The results indicated that the population density in low-rise residential areas was significantly higher than in urban parks, while it was the lowest in high-rise residential areas. Males in low-rise residential areas had greater song length, syllable numbers, frequency bandwidth, and song diversity than those in urban parks. The song differences were mainly related to habitat types, independent of singing height and perch type. Our findings suggest that low-rise residential areas may provide preferred song post sites for the oriental magpie-robin, which is well-adapted to the low-rise building morphology, but rejects the emerging high-rise buildings. Future studies are needed to assess the effects of urban morphological variation on more resident animals to determine which urban morphologies are conducive to enhancing biodiversity and encouraging animals to settle in urban areas.
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Affiliation(s)
- Yanhong Chen
- Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Lijing Li
- School of Ecology and Environment, Anhui Normal University, Wuhu 241000, China
| | - Xiaotian Zhu
- School of Ecology and Environment, Anhui Normal University, Wuhu 241000, China
| | - Yicheng Shen
- Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Anran Ma
- Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
| | - Xinyu Zhang
- School of Ecology and Environment, Anhui Normal University, Wuhu 241000, China
| | - Pan Chen
- Anhui Provincial Key Laboratory of the Conservation and Exploitation of Biological Resources, College of Life Sciences, Anhui Normal University, Wuhu 241000, China
- Correspondence: (P.C.); (C.L.)
| | - Changhu Lu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
- Correspondence: (P.C.); (C.L.)
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6
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Zhang L, Yu J, Shen C, Yin D, Jin L, Liang W, Wang H. Geographic Variation in Note Types of Alarm Calls in Japanese Tits (Parus minor). Animals (Basel) 2022; 12:ani12182342. [PMID: 36139202 PMCID: PMC9495063 DOI: 10.3390/ani12182342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/21/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Geographic variability in acoustic signals has been documented in many bird species. However, geographic variations in alarm calls have been so far neglected despite their crucial role on reducing risk to group members and relatives. We analyzed the note types and acoustic parameters of Japanese tit (Parus minor) alarm calls to three types of intruders (a nest predator, an adult predator, and a harmless species) from three populations in China. Our results revealed that tits in the same population produce similar note types to different intruders, but the three populations only shared six note types and each population had unique note types. The frequency and duration parameters of three shared common note types were significantly different among populations. The three populations belong to the same species, thus they have shared note types. We suspect that the unique note types occurring in each population may be related to three potential reasons: founder effect, predation pressure, and vocal learning. The differences in acoustic parameters of common notes among populations may be a consequence of adaptations to their environments. We suggest that population differences in the note levels of bird alarm calls do exist.
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Affiliation(s)
- Li Zhang
- Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Jiangping Yu
- Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics, School of Life Sciences, Northeast Normal University, Changchun 130024, China
- Correspondence: (J.Y.); (H.W.)
| | - Chao Shen
- Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Dake Yin
- Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Longru Jin
- Jilin Engineering Laboratory for Avian Ecology and Conservation Genetics, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Wei Liang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China
| | - Haitao Wang
- Jilin Provincial Key Laboratory of Animal Resource Conservation and Utilization, Northeast Normal University, Changchun 130024, China
- Correspondence: (J.Y.); (H.W.)
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7
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Nelson CM, Ord TJ. Identifying potential cues of species identity in complex animal signals. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2022.02.001] [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]
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8
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Desai B, Mukherjee S, Whitaker N, Ghosal R. Anecdotal observations of ‘double clutching’ behaviour in captive Mugger crocodiles (Crocodylus palustris). BEHAVIOUR 2022. [DOI: 10.1163/1568539x-bja10153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Animals modulate their behaviours in accordance with their local environment and in the process, undergo different behavioural and physiological adaptations to better survive in a given ecosystem. One such behaviour that plays an important role in survival and sustenance of a species is the breeding behaviour. In this article, we present anecdotal information on breeding strategies of Marsh or Mugger crocodiles. Mugger crocodiles mostly lay single clutch during a year and have an elongated courtship and mating period lasting for 3–4 months. However, we show anecdotal data covering a period of 2 years for a Mugger crocodile producing double clutches annually under captive conditions. The laying of multiple clutches in captive Mugger crocodiles may indicate higher nutritional status and/or breeding strategies of the females under resourceful conditions. We suggest the need for future work on understanding proximate mechanisms underlying the ‘double clutching’ behaviour of Mugger crocodiles.
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Affiliation(s)
- Brinky Desai
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Ahmedabad, Gujarat, India
| | | | | | - Ratna Ghosal
- Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Ahmedabad, Gujarat, India
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9
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10
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11
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Abstract
Birds are our best models to understand vocal learning – a vocal production ability guided by auditory feedback, which includes human language. Among all vocal learners, songbirds have the most diverse life histories, and some aspects of their vocal learning ability are well-known, such as the neural substrates and vocal control centers, through vocal development studies. Currently, species are classified as either vocal learners or non-learners, and a key difference between the two is the development period, extended in learners, but short in non-learners. But this clear dichotomy has been challenged by the vocal learning continuum hypothesis. One way to address this challenge is to examine both learners and canonical non-learners and determine whether their vocal development is dichotomous or falls along a continuum. However, when we examined the existing empirical data we found that surprisingly few species have their vocal development periods documented. Furthermore, we identified multiple biases within previous vocal development studies in birds, including an extremely narrow focus on (1) a few model species, (2) oscines, (3) males, and (4) songs. Consequently, these biases may have led to an incomplete and possibly erroneous conclusions regarding the nature of the relationships between vocal development patterns and vocal learning ability. Diversifying vocal development studies to include a broader range of taxa is urgently needed to advance the field of vocal learning and examine how vocal development patterns might inform our understanding of vocal learning.
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12
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DaCosta JM, Sorenson MD. Variation in the Non-mimetic Vocalizations of Brood-Parasitic Indigobirds and Their Potential Role in Speciation. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.725979] [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
Indigobirds (Vidua spp.) are obligate brood parasites in which imprinting on heterospecific hosts shapes adult vocal behavior and mating preferences. Adult male indigobirds mimic the songs and other vocalizations of their respective hosts, which signals their own host environment to prospective mates and has important implications for speciation. In this study, we examined variation within and among indigobird species in the non-mimetic components of their vocal behavior, including both chatter calls and their impressive repertoires of intricate non-mimicry songs. We test whether indigobird species in Tanzania (V. chalybeata, V. codringtoni, V. funerea, and V. purpurascens) differ consistently in general features of their non-mimetic vocalizations, and we test whether local ecological conditions influence vocal behavior. Indigobird non-mimetic song repertories are learned from and shared with other males of the same species. We find that local dialect “neighborhoods” are variable in size among species and regions, depending on habitat continuity and the distribution of male territories. Despite the complete turnover of the specific songs comprising non-mimicry song repertoires from one local dialect to the next, we find significant species effects for more general measures of non-mimicry songs such as repertoire size and diversity, frequency, song length, and pace. For some traits, we also found significant regional differences, which may be mediated by significant relationships between elevation and morphometrics. Chatter calls were broadly similar across both species and localities, but we found significant species and region effects for frequency and to a lesser extent pace. We discuss the possibility that learning and mimicking the vocalizations of different hosts might influence the production of non-mimetic vocalizations and explain many of the species differences we detected. Whether these species differences are purely due to phenotypic plasticity or also reflect genetic divergence in traits influencing sound production and/or female preferences, they may contribute to reproductive isolation among nascent and recently evolved indigobird species.
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13
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Hamao S. Effect of sympatry on discrimination of heterospecific song by varied tits. Anim Behav 2021. [DOI: 10.1016/j.anbehav.2021.07.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Robert A, Melo M, Lengagne T, Julien S, Gomez D, Doutrelant C. Patterns of bird song evolution on islands support the character release hypothesis in tropical but not in temperate latitudes. J Evol Biol 2021; 34:1580-1591. [PMID: 34510616 DOI: 10.1111/jeb.13928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 11/30/2022]
Abstract
The character release hypothesis-which predicts that a decline in interspecific competition leads to the expansion of trait expression-remains to be tested for communication signals. Taking advantage of the fact that oceanic islands host fewer species than the mainland, we tested whether island birds show an increase in frequency bandwidth of acoustic signals compared with mainland birds. Given the higher animal diversity and more saturated acoustic space in the tropics, we expected acoustic character release, if any, to be stronger in the tropics than in the temperate zone. We field recorded 22 bird species (11 pairs consisting of an endemic island species and its closest mainland relative) breeding at similar latitudes and in similar habitats: six tropical pairs (São Tomé Island/Mount Cameroon) and five temperate pairs (Madeira Island/southern France). For each species, we measured the degree of acoustic interference experienced when vocalizing and the spectral characteristics of its song (minimum and maximum frequencies, bandwidth). As expected, island species spent more time vocalizing alone, and any overlap in vocalizations involved fewer species. The vocalizations of island species spanned broader frequency bandwidths than their mainland counterparts in the tropics (true for all six pairs), but this pattern was less evident in the temperate region (2/5 pairs with no marked differences and 1/5 with opposite pattern). Overall, the character release of communication signals only occurred where the differential in number of species was large (tropics). We discuss latitude differences and the potential factors driving the observed differences.
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Affiliation(s)
- Aloïs Robert
- CEFE UMR 5175, CNRS - Univ. Montpellier - EPHE, Montpellier, France
| | - Martim Melo
- CIBIO Centro de Investigação em Biodiversidade e Recursos Genéticos, InBio Laboratório Associado, Campus Agrário de Vairão, Universidade do Porto, Vairão, Portugal.,MHNC-UP Museu de História Natural e da Ciência da Universidade do Porto, Porto, Portugal.,FitzPatrick Institute of African Ornithology, DST Centre of Excellence, University of Cape Town, Rondebosch, South Africa
| | - Thierry Lengagne
- UMR 5023 Université de Lyon, Écologie des Hydrosystèmes Naturels et Anthropisés, Université, ENTPE, CNRS, Villeurbanne, France
| | - Sacha Julien
- CEFE UMR 5175, CNRS - Univ. Montpellier - EPHE, Montpellier, France
| | - Doris Gomez
- CEFE UMR 5175, CNRS - Univ. Montpellier - EPHE, Montpellier, France
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15
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Beco R, Silveira LF, Derryberry EP, Bravo GA. Ecology and behavior predict an evolutionary trade-off between song complexity and elaborate plumages in antwrens (Aves, Thamnophilidae). Evolution 2021; 75:2388-2410. [PMID: 34382212 DOI: 10.1111/evo.14325] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 06/06/2021] [Indexed: 12/31/2022]
Abstract
The environment can impose constraints on signal transmission properties such that signals should evolve in predictable directions (Sensory Drive Hypothesis). However, behavioral and ecological factors can limit investment in more than one sensory modality leading to a trade-off in use of different signals (Transfer Hypothesis). In birds, there is mixed evidence for both sensory drive and transfer hypothesis. Few studies have tested sensory drive while also evaluating the transfer hypothesis, limiting understanding of the relative roles of these processes in signal evolution. Here, we assessed both hypotheses using acoustic and visual signals in male and female antwrens (Thamnophilidae), a species-rich group that inhabits diverse environments and exhibits behaviors, such as mixed-species flocking, that could limit investment in different signal modalities. We uncovered significant effects of habitat (sensory drive) and mixed-species flocking behavior on both sensory modalities, and we revealed evolutionary trade-offs between song and plumage complexity, consistent with the transfer hypothesis. We also showed sex- and trait-specific responses in visual signals that suggest both natural and social selection play an important role in the evolution of sexual dimorphism. Altogether, these results support the idea that environmental (sensory drive) and behavioral pressures (social selection) shape signal evolution in antwrens.
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Affiliation(s)
- Renata Beco
- Seção de Aves, Museu de Zoologia da Universidade de São Paulo, São Paulo, 04263-000, Brazil.,Departamento de Zoologia do Instituto de Biociências, Universidade de São Paulo, São Paulo, 05508-090, Brazil
| | - Luís F Silveira
- Seção de Aves, Museu de Zoologia da Universidade de São Paulo, São Paulo, 04263-000, Brazil
| | - Elizabeth P Derryberry
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee, 37996
| | - Gustavo A Bravo
- Seção de Aves, Museu de Zoologia da Universidade de São Paulo, São Paulo, 04263-000, Brazil.,Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, 02138.,Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts, 02138
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16
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Drucker JR, Senner NR, Gomez JP. Interspecific aggression in sympatry between congeneric tropical birds. Behav Ecol 2021. [DOI: 10.1093/beheco/arab060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Interspecific aggression may shape species distributions through competitive exclusion, resulting in spatial segregation, or facilitate sympatry as an adaptive mechanism for resource partitioning. Competitive exclusion results from asymmetric aggression of one species towards another, but if the aggressive relationship between species is symmetric, they may persist in sympatry. Interspecific aggression is widely cited as a mechanism for maintaining the distributional limits of tropical birds, but how it shapes the spatial dynamics of competing species that are sympatric over larger geographic areas is less clear. To address this issue, we conducted reciprocal playback experiments on two congeneric Antbirds — Thamnophilus atrinucha and T. doliatus — that occur in sympatry across a habitat matrix in Colombia to characterize their relationship as symmetrically or asymmetrically aggressive and analyzed point count data to assess the degree to which they occur sympatrically. We found weak evidence for competitive exclusion, with the larger T. doliatus responding asymmetrically to T. atrinucha, and the two species having a low co-detection rate during point counts. However, despite their 22% difference in body size, T. atrinucha still responded to T. doliatus playback in over half of our trials, and the two species co-occurred on nearly 25% of point counts, indicating that interspecific aggression does not drive complete spatial segregation. Our findings highlight how the degree to which one species can competitively exclude another may vary, especially across a dynamic landscape.
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Affiliation(s)
- Jacob R Drucker
- Committee on Evolutionary Biology, University of Chicago, Chicago, IL 60637, USA
- Integrative Science Center, The Field Museum, Chicago, IL 60605, USA
- School of Natural Science, Hampshire College, Amherst, MA 01002, USA
| | - Nathan R Senner
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA
| | - Juan Pablo Gomez
- Departamento de Química y Biología, Universidad del Norte, Área Metropolitana de Barranquilla, Colombia
- Department of Biology, University of Florida, Gainesville, FL 32611, USA
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17
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Chen P, Chen T, Liu B, Zhang M, Lu C. Song variation of a native songbird in a modified habitat by invasive plant. Integr Zool 2021; 17:93-104. [PMID: 34216516 PMCID: PMC9292316 DOI: 10.1111/1749-4877.12573] [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] [Indexed: 11/14/2022]
Abstract
Habitat structure has been considered as an important factor affecting the acoustic evolution of birds, and bird songs are increasingly affected by artificial environmental variation. Invasive plants sometimes can dramatically alter native habitats, but the song variation of native songbirds migrating into invaded habitats has received little attention. The invasion of smooth cordgrass Spartina alterniflora in the coastal wetlands of eastern China has drastically altered the vegetation structure and some small passerines have begun to use invaded habitats to breed. In this study, we compared the song type prevalence and the song characteristics of male plain prinia Prinia inornata to identify differences in vocal behavior between native and invaded habitats. We also tested for differences in vocal behavior in relation to singing perch and wind speed variation between different habitats. The results indicated that males of plain prinia in invaded habitats sang shorter songs than those in native habitats and had a lower song diversity. The homogeneous vegetation structure and higher wind speed in invaded habitats likely leads to males changing the traditional perched singing style. The song variation may be related to the founder effect, the alteration of vegetation structure and microclimate in invaded habitats. This finding highlights the need for better understanding the behavioral evolution of native species in the process of adapting to the invaded habitat. In the future, experimental manipulation is needed to ascertain how the invasive plant drove these vocal behavior changes of native songbirds.
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Affiliation(s)
- Pan Chen
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, China.,School of Ecology and Environment, Anhui Normal University, China
| | - Taiyu Chen
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Bin Liu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Manyu Zhang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
| | - Changhu Lu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing, China
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18
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Kenyon HL, Martin PR. Experimental tests of selection against heterospecific aggression as a driver of avian colour pattern divergence. J Evol Biol 2021; 34:1110-1124. [PMID: 33949033 DOI: 10.1111/jeb.13798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 11/30/2022]
Abstract
Signal divergence is thought to reduce the costs of co-occurrence for closely related species and may thereby be important in the generation and maintenance of new biodiversity. In birds, closely related, sympatric species are more divergent in their colour patterns than those that live apart, but the selective pressures driving sympatric divergence in colour pattern are not well-understood. Here, we conducted field experiments on naïve birds using spectrometer-matched, painted, 3D-printed models to test whether selection against heterospecific aggression might drive colour pattern divergence in the genus Poecile. We found that territorial male black-capped chickadees (P. atricapillus) are equally likely to attack sympatric and allopatric congeners, and wintering flocks are equally likely to visit feeders occupied by sympatric and allopatric congeners, despite sympatric congeners being more divergent in colour pattern. These results suggest that either the concerted evolution of additional traits (e.g. discrimination), or interactions in sympatry that promote learning, is required if colour pattern divergence among sympatric species is to reduce heterospecific aggression. Alternatively, colour pattern divergence among sympatric species may be caused by other selective pressures, such as selection against hybridization or habitat partitioning and secondary signal adaptation.
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Affiliation(s)
- Haley L Kenyon
- Department of Biology, Queen's University, Kingston, ON, Canada
| | - Paul R Martin
- Department of Biology, Queen's University, Kingston, ON, Canada
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19
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Bennett KFP, Lim HC, Braun MJ. Sexual selection and introgression in avian hybrid zones: Spotlight on Manacus. Integr Comp Biol 2021; 61:1291-1309. [PMID: 34128981 DOI: 10.1093/icb/icab135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Hybrid zones offer a window into the processes and outcomes of evolution, from species formation or fusion to genomic underpinnings of specific traits and isolating mechanisms. Sexual selection is believed to be an important factor in speciation processes, and hybrid zones present special opportunities to probe its impact. The manakins (Aves, Pipridae) are a promising group in which to study the interplay of sexual selection and natural hybridization: they show substantial variation across the family in the strength of sexual selection they experience, they readily hybridize within and between genera, and they appear to have formed hybrid species, a rare event in birds. A hybrid zone between two manakins in the genus Manacus is unusual in that plumage and behavioral traits of one species have introgressed asymmetrically into populations of the second species through positive sexual selection, then apparently stalled at a river barrier. This is one of a handful of documented examples of asymmetric sexual trait introgression with a known selective mechanism. It offers opportunities to examine reproductive isolation, introgression, plumage color evolution, and natural factors enhancing or constraining the effects of sexual selection in real time. Here, we review previous work in this system, propose new hypotheses for observed patterns, and recommend approaches to test them.
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Affiliation(s)
- Kevin F P Bennett
- Behavior, Ecology, Evolution, and Systematics Program, University of Maryland, College Park, MD, USA.,Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
| | - Haw Chuan Lim
- Department of Biology, George Mason University, Manassas, VA, USA.,Center for Conservation Genomics, Smithsonian Conservation Biology Institute, Washington, DC, USA
| | - Michael J Braun
- Behavior, Ecology, Evolution, and Systematics Program, University of Maryland, College Park, MD, USA.,Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA
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20
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Tamura N, Boonkhaw P, Prayoon U, Phan QT, Yu P, Liu X, Hayashi F. Geographical variation in squirrel mating calls and their recognition limits in the widely distributed species complex. Behav Ecol Sociobiol 2021. [DOI: 10.1007/s00265-021-03022-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Yukilevich R. Reproductive Character Displacement Drives Diversification of Male Courtship Songs in Drosophila. Am Nat 2021; 197:690-707. [PMID: 33989143 DOI: 10.1086/714046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractMale secondary sexual traits are one of the most striking and diverse features of the animal kingdom. While these traits are often thought to evolve via sexual selection, many questions remain about their patterns of diversification and their role in speciation. To address these questions, I performed a comparative study of precopulatory male courtship songs of 119 Drosophila species across 10 distinct species groups. I related song divergence to genetic distances, geographic relationships, and sexual isolation between species. On the basis of pairwise Euclidean song distances, species groups typically retained their phylogenetic signal while species within groups diverged five times more in sympatry relative to allopatry, producing a pattern of reproductive character displacement. This occurred despite similar genetic distances in allopatry and sympatry, was exaggerated among younger species pairs, and was driven primarily by the parameter interpulse interval. While sexual isolation in sympatry was high even with low song divergence, these variables were correlated with each other and with increased divergence of female mating preferences in sympatry. The widespread pattern of character displacement implies that allopatric divergence due to processes like sexual selection are very slow relative to sympatric processes such as reinforcement and reproductive interference in driving song diversification across Drosophila.
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22
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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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23
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Fernández-Gómez RA, Morales-Mávil JE, Hernández-Salazar LT, Sosa-López JR. Asymmetric behavioural responses to divergent vocal signals in allopatric Neotropical sparrows. Anim Behav 2021. [DOI: 10.1016/j.anbehav.2021.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Integumentary Colour Allocation in the Stork Family (Ciconiidae) Reveals Short-Range Visual Cues for Species Recognition. BIRDS 2021. [DOI: 10.3390/birds2010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The family Ciconiidae comprises 19 extant species which are highly social when nesting and foraging. All species share similar morphotypes, with long necks, a bill, and legs, and are mostly coloured in the achromatic spectrum (white, black, black, and white, or shades of grey). Storks may have, however, brightly coloured integumentary areas in, for instance, the bill, legs, or the eyes. These chromatic patches are small in surface compared with the whole body. We have analyzed the conservatism degree of colouration in 10 body areas along an all-species stork phylogeny derived from BirdTRee using Geiger models. We obtained low conservatism in frontal areas (head and neck), contrasting with a high conservatism in the rest of the body. The frontal areas tend to concentrate the chromatic spectrum whereas the rear areas, much larger in surface, are basically achromatic. These results lead us to suggest that the divergent evolution of the colouration of frontal areas is related to species recognition through visual cue assessment in the short-range, when storks form mixed-species flocks in foraging or resting areas.
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25
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Sebastianelli M, Blumstein DT, Kirschel ANG. Higher-pitched bird song towards the coast supports a role for selection in ocean noise avoidance. BIOACOUSTICS 2021. [DOI: 10.1080/09524622.2021.1879680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Daniel T. Blumstein
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA, USA
| | - Alexander N. G. Kirschel
- Department of Biological Sciences, University of Cyprus, Nicosia, Cyprus
- Department of Ecology and Evolutionary Biology, University of California Los Angeles, Los Angeles, CA, USA
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, UK
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26
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Simpson RK, Wilson DR, Mistakidis AF, Mennill DJ, Doucet SM. Sympatry drives colour and song evolution in wood-warblers (Parulidae). Proc Biol Sci 2021; 288:20202804. [PMID: 33434456 DOI: 10.1098/rspb.2020.2804] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Closely related species often exhibit similarities in appearance and behaviour, yet when related species exist in sympatry, signals may diverge to enhance species recognition. Prior comparative studies provided mixed support for this hypothesis, but the relationship between sympatry and signal divergence is likely nonlinear. Constraints on signal diversity may limit signal divergence, especially when large numbers of species are sympatric. We tested the effect of sympatric overlap on plumage colour and song divergence in wood-warblers (Parulidae), a speciose group with diverse visual and vocal signals. We also tested how number of sympatric species influences signal divergence. Allopatric species pairs had overall greater plumage and song divergence compared to sympatric species pairs. However, among sympatric species pairs, plumage divergence positively related to the degree of sympatric overlap in males and females, while male song bandwidth and syllable rate divergence negatively related to sympatric overlap. In addition, as the number of species in sympatry increased, average signal divergence among sympatric species decreased, which is likely due to constraints on warbler perceptual space and signal diversity. Our findings reveal that sympatry influences signal evolution in warblers, though not always as predicted, and that number of sympatric species can limit sympatry's influence on signal evolution.
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Affiliation(s)
- Richard K Simpson
- Department of Integrative Biology, University of Windsor, Windsor, Ontario N9B 3P4, Canada
| | - David R Wilson
- Department of Integrative Biology, University of Windsor, Windsor, Ontario N9B 3P4, Canada.,Department of Psychology, Memorial University of Newfoundland, St John's, Newfoundland A1B 3X9, Canada
| | - Allison F Mistakidis
- Department of Integrative Biology, University of Windsor, Windsor, Ontario N9B 3P4, Canada
| | - Daniel J Mennill
- Department of Integrative Biology, University of Windsor, Windsor, Ontario N9B 3P4, Canada
| | - Stéphanie M Doucet
- Department of Integrative Biology, University of Windsor, Windsor, Ontario N9B 3P4, Canada
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27
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Mikula P, Valcu M, Brumm H, Bulla M, Forstmeier W, Petrusková T, Kempenaers B, Albrecht T. A global analysis of song frequency in passerines provides no support for the acoustic adaptation hypothesis but suggests a role for sexual selection. Ecol Lett 2020; 24:477-486. [DOI: 10.1111/ele.13662] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Peter Mikula
- Department of Zoology Faculty of Science Charles University Viničná 7 Praha12844Czech Republic
- Institute of Vertebrate Biology Czech Academy of Sciences Květná 8 Brno603 65Czech Republic
| | - Mihai Valcu
- Department of Behavioural Ecology and Evolutionary GeneticsMax Planck Institute for Ornithology Eberhard‐Gwinner‐Str. 7 Seewiesen82319Germany
| | - Henrik Brumm
- Communication and Social Behaviour GroupMax Planck Institute for Ornithology Eberhard‐Gwinner‐Str. 11 Seewiesen82319Germany
| | - Martin Bulla
- Department of Behavioural Ecology and Evolutionary GeneticsMax Planck Institute for Ornithology Eberhard‐Gwinner‐Str. 7 Seewiesen82319Germany
- Department of Ecology Faculty of Environmental Sciences Czech University of Life Sciences Praha16521Czech Republic
| | - Wolfgang Forstmeier
- Department of Behavioural Ecology and Evolutionary GeneticsMax Planck Institute for Ornithology Eberhard‐Gwinner‐Str. 7 Seewiesen82319Germany
| | - Tereza Petrusková
- Department of Ecology Faculty of Science Charles University Viničná 7 Praha12843Czech Republic
| | - Bart Kempenaers
- Department of Behavioural Ecology and Evolutionary GeneticsMax Planck Institute for Ornithology Eberhard‐Gwinner‐Str. 7 Seewiesen82319Germany
| | - Tomáš Albrecht
- Department of Zoology Faculty of Science Charles University Viničná 7 Praha12844Czech Republic
- Institute of Vertebrate Biology Czech Academy of Sciences Květná 8 Brno603 65Czech Republic
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28
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Metcalf OC, Barlow J, Devenish C, Marsden S, Berenguer E, Lees AC. Acoustic indices perform better when applied at ecologically meaningful time and frequency scales. Methods Ecol Evol 2020. [DOI: 10.1111/2041-210x.13521] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Oliver C. Metcalf
- Conservation, Ecology, Evolution and Behaviour (CEEB) Ecology and Environment Research Centre (EERC) Manchester Metropolitan University Manchester UK
| | - Jos Barlow
- Departamento de Biologia Universidade Federal de Lavras Lavras Brazil
- Lancaster Environment Centre Lancaster University Lancaster UK
- MCTIC/Museu Paraense Emílio Goeldi Belém Brazil
| | - Christian Devenish
- Conservation, Ecology, Evolution and Behaviour (CEEB) Ecology and Environment Research Centre (EERC) Manchester Metropolitan University Manchester UK
| | - Stuart Marsden
- Conservation, Ecology, Evolution and Behaviour (CEEB) Ecology and Environment Research Centre (EERC) Manchester Metropolitan University Manchester UK
| | - Erika Berenguer
- Lancaster Environment Centre Lancaster University Lancaster UK
- Environmental Change Institute School of Geography and the Environment University of Oxford Oxford UK
| | - Alexander C. Lees
- Conservation, Ecology, Evolution and Behaviour (CEEB) Ecology and Environment Research Centre (EERC) Manchester Metropolitan University Manchester UK
- Cornell Lab of Ornithology Cornell University Ithaca NY USA
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29
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Saitta ET, Stockdale MT, Longrich NR, Bonhomme V, Benton MJ, Cuthill IC, Makovicky PJ. An effect size statistical framework for investigating sexual dimorphism in non-avian dinosaurs and other extinct taxa. Biol J Linn Soc Lond 2020. [DOI: 10.1093/biolinnean/blaa105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Abstract
Despite reports of sexual dimorphism in extinct taxa, such claims in non-avian dinosaurs have been rare over the last decade and have often been criticized. Since dimorphism is widespread in sexually reproducing organisms today, under-reporting in the literature might suggest either methodological shortcomings or that this diverse group exhibited highly unusual reproductive biology. Univariate significance testing, especially for bimodality, is ineffective and prone to false negatives. Species recognition and mutual sexual selection hypotheses, therefore, may not be required to explain supposed absence of sexual dimorphism across the grade (a type II error). Instead, multiple lines of evidence support sexual selection and variation of structures consistent with secondary sexual characteristics, strongly suggesting sexual dimorphism in non-avian dinosaurs. We propose a framework for studying sexual dimorphism in fossils, focusing on likely secondary sexual traits and testing against all alternate hypotheses for variation in them using multiple lines of evidence. We use effect size statistics appropriate for low sample sizes, rather than significance testing, to analyse potential divergence of growth curves in traits and constrain estimates for dimorphism magnitude. In many cases, estimates of sexual variation can be reasonably accurate, and further developments in methods to improve sex assignments and account for intrasexual variation (e.g. mixture modelling) will improve accuracy. It is better to compare estimates for the magnitude of and support for dimorphism between datasets than to dichotomously reject or fail to reject monomorphism in a single species, enabling the study of sexual selection across phylogenies and time. We defend our approach with simulated and empirical data, including dinosaur data, showing that even simple approaches can yield fairly accurate estimates of sexual variation in many cases, allowing for comparison of species with high and low support for sexual variation.
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Affiliation(s)
- Evan T Saitta
- Life Sciences Section, Integrative Research Center, Field Museum of Natural History, Chicago, IL, USA
| | | | - Nicholas R Longrich
- Department of Biology and Biochemistry and Milner Centre for Evolution, University of Bath, Bath, UK
| | - Vincent Bonhomme
- Institut des sciences de l’évolution, Université de Montpellier, Montpellier, France
| | | | - Innes C Cuthill
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - Peter J Makovicky
- Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN, USA
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30
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Estrela MDN, Simões CRMA, Vieira GHC, de Araújo CB. Predicting the effects of noise on Anuran spatial distribution: the case of Scinax nebulosus. BIOACOUSTICS 2020. [DOI: 10.1080/09524622.2019.1618394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Matheus da N. Estrela
- Programa de Pós-graduação em Ciências Biológicas, Universidade Federal da Paraíba (UFPB), Joao Pessoa, Brazil
| | - Cássio R. M. A. Simões
- Programa de Pós-graduação em Biodiversidade e Evolução (PPGBioEvo), Universidade Federal da Bahia (UFBA), Salvador, Brazil
| | - Gustavo H. C. Vieira
- Programa de Pós-graduação em Ciências Biológicas, Universidade Federal da Paraíba (UFPB), Joao Pessoa, Brazil
- Departamento de Sistemática e Ecologia, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba (UFPB), Joao Pessoa, Brazil
| | - Carlos B. de Araújo
- Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte (IFRN), Ipanguaçu, Brazil
- Programa de Pós-graduação em Ciências Biológicas, Universidade Estadual de Londrina, Londrina, Brazil
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31
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Cruz-Yepez N, González C, Ornelas JF. Vocal recognition suggests premating isolation between lineages of a lekking hummingbird. Behav Ecol 2020. [DOI: 10.1093/beheco/araa050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Species with genetically differentiated allopatric populations commonly differ in phenotypic traits due to drift and/or selection, which can be important drivers of reproductive isolation. Wedge-tailed sabrewing (Campylopterus curvipennis) is a species complex composed of three genetically and acoustically differentiated allopatric lineages that correspond to currently recognized subspecies in Mexico: C. c. curvipennis (Sierra Madre Oriental), C. c. pampa (Yucatán Peninsula), and C. c. excellens (Los Tuxtlas). Although excellens is taxonomically recognized as a distinct species, there is genetic evidence that lineages excellens and curvipennis have diverged from each other later than pampa. In this study, we experimentally tested C. c. curvipennis song recognition as a major factor in premating reproductive isolation for lineage recognition. To this end, we conducted a song playback experiment to test whether territorial males of one C. c. curvipennis lek discriminate among potential competitors based on male songs from the three lineages. Males of curvipennis responded more aggressively to songs of their own lineage and excellens, than to songs of the most divergent lineage pampa, as evidenced by significant differences in a variety of intensity and latency response variables. This indicate that the pampa male song does not represent a competitive threat as curvipennis and excellens songs, in which divergence and song recognition represent premating reproductive isolation between these isolated lineages. However, the acoustic limits between curvipennis and excellens might be attenuated by gene flow in case of secondary contact between them, despite the strong and relatively rapid divergence of their sexually selected song traits.
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Affiliation(s)
- Nataly Cruz-Yepez
- Instituto de Investigaciones sobre los Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Av. San Juanito Itzícuaro s/n, Col. Nueva Esperanza, Morelia, Michoacán, Mexico
- Departamento de Biología Evolutiva, Instituto de Ecología AC, Carretera antigua a Coatepec 351, El Haya, Xalapa, Veracruz, Mexico
| | - Clementina González
- Instituto de Investigaciones sobre los Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Av. San Juanito Itzícuaro s/n, Col. Nueva Esperanza, Morelia, Michoacán, Mexico
| | - Juan Francisco Ornelas
- Departamento de Biología Evolutiva, Instituto de Ecología AC, Carretera antigua a Coatepec 351, El Haya, Xalapa, Veracruz, Mexico
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32
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Kirschel ANG, Seddon N, Tobias JA. Range-wide spatial mapping reveals convergent character displacement of bird song. Proc Biol Sci 2020; 286:20190443. [PMID: 31039717 DOI: 10.1098/rspb.2019.0443] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
A long-held view in evolutionary biology is that character displacement generates divergent phenotypes in closely related coexisting species to avoid the costs of hybridization or ecological competition, whereas an alternative possibility is that signals of dominance or aggression may instead converge to facilitate coexistence among ecological competitors. Although this counterintuitive process-termed convergent agonistic character displacement-is supported by recent theoretical and empirical studies, the extent to which it drives spatial patterns of trait evolution at continental scales remains unclear. By modelling the variation in song structure of two ecologically similar species of Hypocnemis antbird across western Amazonia, we show that their territorial signals converge such that trait similarity peaks in the sympatric zone, where intense interspecific territoriality between these taxa has previously been demonstrated. We also use remote sensing data to show that signal convergence is not explained by environmental gradients and is thus unlikely to evolve by sensory drive (i.e. acoustic adaptation to the sound transmission properties of habitats). Our results suggest that agonistic character displacement driven by interspecific competition can generate spatial patterns opposite to those predicted by classic character displacement theory, and highlight the potential role of social selection in shaping geographical variation in signal phenotypes of ecological competitors.
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Affiliation(s)
- Alexander N G Kirschel
- 1 Department of Biological Sciences, University of Cyprus , PO Box 20537, Nicosia 1678 , Cyprus.,2 Edward Grey Institute, Department of Zoology, University of Oxford , South Parks Road, Oxford OX1 3PS , UK
| | - Nathalie Seddon
- 2 Edward Grey Institute, Department of Zoology, University of Oxford , South Parks Road, Oxford OX1 3PS , UK
| | - Joseph A Tobias
- 2 Edward Grey Institute, Department of Zoology, University of Oxford , South Parks Road, Oxford OX1 3PS , UK.,3 Department of Life Sciences, Imperial College London , Silwood Park, Buckhurst Road, Ascot, Berkshire SL5 7PY , UK
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33
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Kirschel ANG, Nwankwo EC, Seal N, Grether GF. Time spent together and time spent apart affect song, feather colour and range overlap in tinkerbirds. Biol J Linn Soc Lond 2020. [DOI: 10.1093/biolinnean/blz191] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Most studies on the processes driving evolutionary diversification highlight the importance of genetic drift in geographical isolation and natural selection across ecological gradients. Direct interactions among related species have received much less attention, but they can lead to character displacement, with recent research identifying patterns of displacement attributed to either ecological or reproductive processes. Together, these processes could explain complex, trait-specific patterns of diversification. Few studies, however, have examined the possible effects of these processes together or compared the divergence in multiple traits between interacting species among contact zones. Here, we show how traits of two Pogoniulus tinkerbird species vary among regions across sub-Saharan Africa. However, in addition to variation between regions consistent with divergence in refugial isolation, both song and morphology diverge between the species where they coexist. In West Africa, where the species are more similar in plumage, there is possible competitive or reproductive exclusion. In Central and East Africa, patterns of variation are consistent with agonistic character displacement. Molecular analyses support the hypothesis that differences in the age of interaction among regions can explain why species have evolved phenotypic differences and coexist in some regions but not others. Our findings suggest that competitive interactions between species and the time spent interacting, in addition to the time spent in refugial isolation, play important roles in explaining patterns of species diversification.
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Affiliation(s)
- Alexander N G Kirschel
- Department of Biological Sciences, University of Cyprus, Nicosia, Cyprus
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, UK
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA
| | - Emmanuel C Nwankwo
- Department of Biological Sciences, University of Cyprus, Nicosia, Cyprus
| | - Nadya Seal
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA
| | - Gregory F Grether
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA
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34
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Gogoleva SS. Effects of ecological factors on the acoustic parameters of passerine species in a tropical lowland forest in southern Vietnam. BIOACOUSTICS 2020. [DOI: 10.1080/09524622.2018.1540945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Svetlana S. Gogoleva
- Department of Tropical Ecology, A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia
- Department of Terrestrial Ecology, Joint Russian-Vietnamese Tropical Research and Technological Centre, Hanoi, Vietnam
- Department of Ornitology, Zoological Museum of the Lomonosov Moscow State University, Moscow, Russia
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35
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Friedman NR, Miller ET, Ball JR, Kasuga H, Remeš V, Economo EP. Evolution of a multifunctional trait: shared effects of foraging ecology and thermoregulation on beak morphology, with consequences for song evolution. Proc Biol Sci 2019; 286:20192474. [PMID: 31847778 PMCID: PMC6939928 DOI: 10.1098/rspb.2019.2474] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
While morphological traits are often associated with multiple functions, it remains unclear how evolution balances the selective effects of different functions. Birds' beaks function not only in foraging but also in thermoregulating and singing, among other behaviours. Studies of beak evolution abound, however, most focus on a single function. Hence, we quantified relative contributions of different functions over an evolutionary timescale. We measured beak shape using geometric morphometrics and compared this trait with foraging behaviour, climatic variables and song characteristics in a phylogenetic comparative study of an Australasian radiation of songbirds (Meliphagidae). We found that both climate and foraging behaviour were significantly correlated with the beak shape and size. However, foraging ecology had a greater effect on shape, and climate had a nearly equal effect on size. We also found that evolutionary changes in beak morphology had significant consequences for vocal performance: species with elongate-shaped beaks sang at higher frequencies, while species with large beaks sang at a slower pace. The evolution of the avian beak exemplifies how morphological traits can be an evolutionary compromise among functions, and suggests that specialization along any functional axis may increase ecological divergence or reproductive isolation along others.
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Affiliation(s)
- Nicholas R Friedman
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Okinawa, Japan.,Department of Zoology and Laboratory of Ornithology, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Eliot T Miller
- Cornell Laboratory of Ornithology, Cornell University, Ithaca, NY, USA
| | - Jason R Ball
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Okinawa, Japan
| | - Haruka Kasuga
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Okinawa, Japan.,Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Vladimír Remeš
- Department of Zoology and Laboratory of Ornithology, Faculty of Science, Palacký University, Olomouc, Czech Republic.,Department of Ecology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Evan P Economo
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Okinawa, Japan
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36
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Chavarria‐Pizarro T, Gomez JP, Ungvari‐Martin J, Bay R, Miyamoto MM, Kimball R. Strong phenotypic divergence in spite of low genetic structure in the endemic Mangrove Warbler subspecies ( Setophaga petechia xanthotera) of Costa Rica. Ecol Evol 2019; 9:13902-13918. [PMID: 31938490 PMCID: PMC6953683 DOI: 10.1002/ece3.5826] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 10/18/2019] [Indexed: 12/13/2022] Open
Abstract
Despite the enormous advances in genetics, links between phenotypes and genotypes have been made for only a few nonmodel organisms. However, such links can be essential to understand mechanisms of ecological speciation. The Costa Rican endemic Mangrove Warbler subspecies provides an excellent subject to study differentiation with gene flow, as it is distributed along a strong precipitation gradient on the Pacific coast with no strong geographic barriers to isolate populations. Mangrove Warbler populations could be subject to divergent selection driven by precipitation, which influences soil salinity levels, which in turn influences forest structure and food resources. We used single nucleotide polymorphisms (SNPs) and morphological traits to examine the balance between neutral genetic and phenotypic divergence to determine whether selection has acted on traits and genes with functions related to specific environmental variables. We present evidence showing: (a) associations between environmental variables and SNPs, identifying candidate genes related to bill morphology (BMP) and osmoregulation, (b) absence of population genetic structure in neutrally evolving markers, (c) divergence in bill size across the precipitation gradient, and (d) strong phenotypic differentiation (P ST) which largely exceeds neutral genetic differentiation (F ST) in bill size. Our results indicate an important role for salinity, forest structure, and resource availability in maintaining phenotypic divergence of Mangrove Warblers through natural selection. Our findings add to the growing body of literature identifying the processes involved in phenotypic differentiation along environmental gradients in the face of gene flow.
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Affiliation(s)
- Tania Chavarria‐Pizarro
- Department of BiologyUniversity of FloridaGainesvilleFLUSA
- Department of BiologyLudwig Maximilian University of MunichMunichGermany
| | - Juan Pablo Gomez
- Department of BiologyUniversity of FloridaGainesvilleFLUSA
- Departamento de Química y BiologíaUniversidad del NorteBarranquillaColombia
| | | | - Rachael Bay
- Department of Evolution and EcologyUniversity of CaliforniaDavisCAUSA
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37
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Porter CK, Smith JW. Diversification in trophic morphology and a mating signal are coupled in the early stages of sympatric divergence in crossbills. Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/blz163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Understanding the mechanisms generating diversity in mating signals is critical to understanding the process of speciation. One mechanism of mating signal diversification occurs when phenotypes that experience divergent ecological selection also affect the production of mating signals, resulting in a coupling between ecological diversification and mating signal diversification. Here, we present evidence that rapid diversification in bill size has resulted in the diversification of some components of song structure in a young adaptive radiation of seed-eating finches (red crossbill, Loxia curvirostra complex). Specifically, we find that larger-billed ecotypes sing songs with lower minimum frequencies, lower syllable repetition rates and greater vocal deviation (i.e. lower performance) than smaller-billed ecotypes for pure tonal syllables. In contrast, bill size was not correlated with maximum frequency or frequency bandwidth, and we found no relationship between bill size and any song parameters in buzzy syllables. Furthermore, we found no evidence for a relationship between the degree of bill size divergence and the potential for song discrimination between sympatric ecotypes. Because bill size is correlated with some features of pure tonal syllables (which appear to be most important for courtship in crossbills) in crossbill song, our results suggest that there was an early-evolving link between ecological and mating signal diversification that may have influenced the rapid evolution of reproductive isolation between sympatric ecotypes.
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Affiliation(s)
- Cody K Porter
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY,USA
- Program in Ecology, University of Wyoming, Laramie, WY, USA
| | - Julie W Smith
- Department of Biology, Pacific Lutheran University, Tacoma, WA, USA
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38
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Hamilton K, Goulet CT, Johnstone CP, Chapple DG. Does geographical isolation influence group recognition and social preference in an invasive lizard? J Zool (1987) 2019. [DOI: 10.1111/jzo.12738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Katelyn Hamilton
- School of Biological Sciences Monash University Clayton Vic Australia
| | - Celine T. Goulet
- School of Biological Sciences Monash University Clayton Vic Australia
| | | | - David G. Chapple
- School of Biological Sciences Monash University Clayton Vic Australia
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39
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Macedo G, Silva M, Amaral FRD, Maldonado-Coelho M. Symmetrical discrimination despite weak song differentiation in 2 suboscine bird sister species. Behav Ecol 2019. [DOI: 10.1093/beheco/arz066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Song mediates territorial competition and mate choice in birds and population divergence in this signal can have important evolutionary consequences. For example, divergent songs can act in specific recognition and limit gene flow and, hence, have a fundamental role on the origin and/or integrity of evolutionary lineages. Especially interesting systems to test the role of song in specific recognition are species pairs that present small structural differences in this signal. Here, we perform song play-back experiments on males of a long-diverged sister pair of Neotropical Suboscine species, the squamate antbird (Myrmoderus squamosus) and the white-bibbed antbird (Myrmoderus loricatus), which occur in parapatry in the Atlantic Forest and that overlap extensively in song variation. Previous evidence indicates that genetic introgression between these species is either absent or negligible, suggesting that vocal discrimination or other mechanisms function as effective barriers to gene flow. Our results show that responses to heterospecific songs were symmetrical and intermediary compared with responses to conspecific songs in both species. A stronger response to conspecific territorial songs suggests that conspecific individuals pose greater competitive threat than heterospecifics. An important implication of our study is that even small song differences can play an important role in specific recognition.
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Affiliation(s)
- Gabriel Macedo
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil
| | - Marco Silva
- SAVE Brasil, BirdLife International, São Paulo, Brazil
| | - Fábio Raposo do Amaral
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil
| | - Marcos Maldonado-Coelho
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema, São Paulo, Brazil
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40
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Louder MIM, Lawson S, Lynch KS, Balakrishnan CN, Hauber ME. Neural mechanisms of auditory species recognition in birds. Biol Rev Camb Philos Soc 2019; 94:1619-1635. [PMID: 31066222 DOI: 10.1111/brv.12518] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 04/12/2019] [Accepted: 04/15/2019] [Indexed: 01/23/2023]
Abstract
Auditory communication in humans and other animals frequently takes place in noisy environments with many co-occurring signallers. Receivers are thus challenged to rapidly recognize salient auditory signals and filter out irrelevant sounds. Most bird species produce a variety of complex vocalizations that function to communicate with other members of their own species and behavioural evidence broadly supports preferences for conspecific over heterospecific sounds (auditory species recognition). However, it remains unclear whether such auditory signals are categorically recognized by the sensory and central nervous system. Here, we review 53 published studies that compare avian neural responses between conspecific versus heterospecific vocalizations. Irrespective of the techniques used to characterize neural activity, distinct nuclei of the auditory forebrain are consistently shown to be repeatedly conspecific selective across taxa, even in response to unfamiliar individuals with distinct acoustic properties. Yet, species-specific neural discrimination is not a stereotyped auditory response, but is modulated according to its salience depending, for example, on ontogenetic exposure to conspecific versus heterospecific stimuli. Neuromodulators, in particular norepinephrine, may mediate species recognition by regulating the accuracy of neuronal coding for salient conspecific stimuli. Our review lends strong support for neural structures that categorically recognize conspecific signals despite the highly variable physical properties of the stimulus. The available data are in support of a 'perceptual filter'-based mechanism to determine the saliency of the signal, in that species identity and social experience combine to influence the neural processing of species-specific auditory stimuli. Finally, we present hypotheses and their testable predictions, to propose next steps in species-recognition research into the emerging model of the neural conceptual construct in avian auditory recognition.
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Affiliation(s)
- Matthew I M Louder
- Department of Evolution, Ecology and Behavior, School of Integrative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, U.S.A
| | - Shelby Lawson
- Department of Evolution, Ecology and Behavior, School of Integrative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, U.S.A
| | - Kathleen S Lynch
- Department of Biology, Hofstra University, Hempstead, NY 11759, U.S.A
| | | | - Mark E Hauber
- Department of Evolution, Ecology and Behavior, School of Integrative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, U.S.A
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41
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Love J, Hoepfner A, Goller F. Song Feature Specific Analysis of Isolate Song Reveals Interspecific Variation in Learned Components. Dev Neurobiol 2019; 79:350-369. [PMID: 31002477 DOI: 10.1002/dneu.22682] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/14/2019] [Accepted: 04/15/2019] [Indexed: 11/05/2022]
Abstract
Studies of avian vocal development without exposure to conspecific song have been conducted in many passerine species, and the resultant isolate song is often interpreted to represent an expression of the genetic code for conspecific song. There is wide recognition that vocal learning exists in oscine songbirds, but vocal learning has only been thoroughly investigated in a few model species, resulting in a narrow view of birdsong learning. By extracting acoustic signals from published spectrograms, we have reexamined the findings of isolate studies with a universally applicable semi-automated quantitative analysis regimen. When song features were analyzed in light of three different production aspects (respiratory, syringeal, and central programming of sequence), all three show marked interspecific variability in how close isolate song features are to normal. This implies that song learning mechanisms are more variable than is commonly recognized. Our results suggest that the interspecific variation shows no readily observable pattern reflecting phylogeny, which has implications for understanding the mechanisms behind the evolution of avian vocal communication. We emphasize that song learning in passerines provides an excellent opportunity to investigate the evolution of a complex, plastic trait from a phylogenetic perspective.
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Affiliation(s)
- Jay Love
- School of Biological Sciences, University of Utah, 257 South 1400 East, Salt Lake City, Utah, 84112
| | - Amanda Hoepfner
- School of Biological Sciences, University of Utah, 257 South 1400 East, Salt Lake City, Utah, 84112
| | - Franz Goller
- School of Biological Sciences, University of Utah, 257 South 1400 East, Salt Lake City, Utah, 84112.,Institute for Zoophysiology, University of Muenster, Muenster, Germany
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42
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Lavinia PD, Barreira AS, Campagna L, Tubaro PL, Lijtmaer DA. Contrasting evolutionary histories in Neotropical birds: Divergence across an environmental barrier in South America. Mol Ecol 2019; 28:1730-1747. [DOI: 10.1111/mec.15018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/22/2018] [Accepted: 01/07/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Pablo D. Lavinia
- División Ornitología Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’ (MACN–CONICET) Buenos Aires Argentina
| | - Ana S. Barreira
- División Ornitología Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’ (MACN–CONICET) Buenos Aires Argentina
| | - Leonardo Campagna
- Fuller Evolutionary Biology Program Cornell Laboratory of Ornithology Ithaca New York
- Department of Ecology and Evolutionary Biology Cornell University Ithaca New York
| | - Pablo L. Tubaro
- División Ornitología Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’ (MACN–CONICET) Buenos Aires Argentina
| | - Darío A. Lijtmaer
- División Ornitología Museo Argentino de Ciencias Naturales ‘Bernardino Rivadavia’ (MACN–CONICET) Buenos Aires Argentina
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43
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Boycott TJ, Gao J, Gall MD. Deer browsing alters sound propagation in temperate deciduous forests. PLoS One 2019; 14:e0211569. [PMID: 30759129 PMCID: PMC6373924 DOI: 10.1371/journal.pone.0211569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 01/16/2019] [Indexed: 11/23/2022] Open
Abstract
The efficacy of animal signals is strongly influenced by the structure of the habitat in which they are propagating. In recent years, the habitat structure of temperate forests has been increasingly subject to modifications from foraging by white-tailed deer (Odocoileus virginianus). Increasing deer numbers and the accompanying browsing have been shown to alter vegetation structure and thus the foraging, roosting, and breeding habitats of many species. However, despite a large body of literature on the effects of vegetation structure on sound propagation, we do not yet know what impact deer browsing may have on acoustic communication. Here we used playback experiments to determine whether sound fidelity and amplitude of white noise, pure tones, and trills differed between deer-browsed and deer-excluded plots. We found that sound fidelity, but not amplitude, differed between habitats, with deer-browsed habitats having greater sound fidelity than deer-excluded habitats. Difference in sound propagation characteristics between the two habitats could alter the efficacy of acoustic communication through plasticity, cultural evolution or local adaptation, in turn influencing vocally-mediated behaviors (e.g. agonistic, parent-offspring, mate selection). Reduced signal degradation suggests vocalizations may retain more information, improving the transfer of information to both intended and unintended receivers. Overall, our results suggest that deer browsing impacts sound propagation in temperate deciduous forest, although much work remains to be done on the potential impacts on communication.
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Affiliation(s)
- Timothy J. Boycott
- Biology Department, Vassar College, Poughkeepsie, New York, United States of America
| | - Jingyi Gao
- Biology Department, Vassar College, Poughkeepsie, New York, United States of America
| | - Megan D. Gall
- Biology Department, Vassar College, Poughkeepsie, New York, United States of America
- * E-mail:
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44
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Luzuriaga-Aveiga VE, Weir JT. Elevational differentiation accelerates trait evolution but not speciation rates in Amazonian birds. Ecol Lett 2019; 22:624-633. [PMID: 30714311 DOI: 10.1111/ele.13229] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/15/2018] [Accepted: 01/04/2019] [Indexed: 01/21/2023]
Abstract
The importance of ecologically mediated divergent selection in accelerating trait evolution has been poorly studied in the most species-rich biome of the planet, the continental Neotropics. We performed macroevolutionary analyses of trait divergence and diversification rates across closely related pairs of Andean and Amazonian passerine birds, to assess whether the difference in elevational range separating species pairs - a proxy for the degree of ecological divergence - influences the speed of trait evolution and diversification rates. We found that elevational differentiation is associated with faster divergence of song frequency, a trait important for pre-mating isolation, and several morphological traits, which may contribute to extrinsic post-mating isolation. However, elevational differentiation did not increase recent speciation rates, possibly due to early bursts of diversification during the uplift of the eastern Andes followed by a slow-down in speciation rate. Our results suggest that ecological differentiation may speed up trait evolution, but not diversification of Neotropical birds.
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Affiliation(s)
- Vanessa E Luzuriaga-Aveiga
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, M1C 1A4, Canada.,Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON, M1C 1A4, Canada
| | - Jason T Weir
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, M1C 1A4, Canada.,Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON, M1C 1A4, Canada.,Department of Ornithology, Royal Ontario Museum, 100 Queen's Park, Toronto, ON, M5S 2C6, Canada
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45
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46
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Miles MC, Schuppe ER, Ligon RM, Fuxjager MJ. Macroevolutionary patterning of woodpecker drums reveals how sexual selection elaborates signals under constraint. Proc Biol Sci 2019; 285:rspb.2017.2628. [PMID: 29467264 PMCID: PMC5832706 DOI: 10.1098/rspb.2017.2628] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 01/29/2018] [Indexed: 11/23/2022] Open
Abstract
Sexual selection drives elaboration in animal displays used for competition and courtship, but this process is opposed by morphological constraints on signal design. How do interactions between selection and constraint shape display evolution? One possibility is that sexual selection continues exaggeration under constraint by operating differentially on each signal component in complex, modular displays. This is seldom studied on a phylogenetic scale, but we address the issue herein by studying macroevolutionary patterning of woodpecker drum displays. These territorial displays are produced when an individual rapidly hits its bill on a hard surface, and drums vary across species in the number of beats included (length) and the rate of drumbeat production (speed). We report that species body size limits drum speed, but not drum length. As a result of this biomechanical constraint, there is less standing variation in speed than length. We also uncover a positive relationship between sexual size dimorphism and the unconstrained trait (length), but with no effect on speed. This suggests that when morphology limits the exaggeration of one component, sexual selection instead exaggerates the unconstrained trait. Modular displays therefore provide the basis for selection to find novel routes to phenotypic elaboration after previous ones are closed.
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Affiliation(s)
- Meredith C Miles
- Department of Biology, Wake Forest University, Winston-Salem, NC 27101, USA
| | - Eric R Schuppe
- Department of Biology, Wake Forest University, Winston-Salem, NC 27101, USA
| | - R Miller Ligon
- Department of Biology, Wake Forest University, Winston-Salem, NC 27101, USA
| | - Matthew J Fuxjager
- Department of Biology, Wake Forest University, Winston-Salem, NC 27101, USA
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47
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Deng Z, Lloyd H, Xia C, Møller AP, Liang W, Zhang Y. Components of variation in female common cuckoo calls. Behav Processes 2019; 158:106-112. [DOI: 10.1016/j.beproc.2018.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 09/18/2018] [Accepted: 10/17/2018] [Indexed: 11/28/2022]
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48
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Tseng H, Liao C, Hsu J, Wang L, Huang W. Parental behavior drives large bite force in an insular skink population. J Zool (1987) 2018. [DOI: 10.1111/jzo.12638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H.‐Y. Tseng
- Department of Biology National Museum of Natural Science Taichung Taiwan
| | - C.‐P. Liao
- Department of Biology National Museum of Natural Science Taichung Taiwan
- Department of Life Science Tunghai University Taichung Taiwan
| | - J.‐Y. Hsu
- Department of Biology National Museum of Natural Science Taichung Taiwan
| | - L.‐Y. Wang
- Functional Morphology and Biomechanics Institute of Zoology Kiel University Kiel Germany
| | - W.‐S. Huang
- Department of Biology National Museum of Natural Science Taichung Taiwan
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49
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Escalona Sulbarán MD, Ivo Simões P, Gonzalez-Voyer A, Castroviejo-Fisher S. Neotropical frogs and mating songs: The evolution of advertisement calls in glassfrogs. J Evol Biol 2018; 32:163-176. [PMID: 30481406 DOI: 10.1111/jeb.13406] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 02/04/2023]
Abstract
Anurans emit advertisement calls with the purpose of attracting mates and repelling conspecific competitors. The evolution of call traits is expected to be associated with the evolution of anatomical and behavioural traits due to the physics of call emission and transmission. The evolution of vocalizations might imply trade-offs with other energetically costly behaviours, such as parental care. Here, we investigated the association between body size, calling site, parental care and call properties (call duration, number of notes, peak frequency, frequency bandwidth and call structure) of the advertisement calls of glassfrogs (Centrolenidae)-a family of Neotropical, leaf-dwelling anurans-using phylogenetic comparative methods. We also explored the tempo and mode of evolution of these traits and compared them with those of three morphological traits associated with body size, locomotion and feeding. We generated and compiled acoustic data for 72 glassfrog species (46% of total species richness), including representatives of all genera. We found that almost all acoustic traits have significant, but generally modest, phylogenetic signal. Peak frequency of calls is significantly associated with body size, whereas call structure is significantly associated with calling site and paternal care. Thus, the evolution of body size, calling site and paternal care could constrain call evolution. The estimated disparity of acoustic traits was larger than that of morphological traits and the peak in disparity of acoustic traits generally occurred later in the evolution of glassfrogs, indicating a historically recent outset of the acoustic divergence in this clade.
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Affiliation(s)
- Moisés D Escalona Sulbarán
- Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Pedro Ivo Simões
- Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
| | - Alejandro Gonzalez-Voyer
- Instituto de Ecología, Departamento de Ecología Evolutiva, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Santiago Castroviejo-Fisher
- Laboratório de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Herpetology, American Museum of Natural History, New York City, New York
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50
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Carneiro L, Bravo GA, Aleixo A. Phenotypic similarity leads to taxonomic inconsistency: A revision of the lowland's antpittas. ZOOL SCR 2018. [DOI: 10.1111/zsc.12324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lincoln Carneiro
- Coordenação de Zoologia Museu Paraense Emílio Goeldi Belém Brazil
- Faculdade de Educação do Campo Universidade Federal do Pará Cametá Brazil
| | - Gustavo A. Bravo
- Department of Organismic and Evolutionary Biology & Museum of Comparative Zoology Harvard University Cambridge Massachusetts
| | - Alexandre Aleixo
- Coordenação de Zoologia Museu Paraense Emílio Goeldi Belém Brazil
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