Auditory discrimination learning in zebra finches: effects of sex, early life conditions and stimulus characteristics

Animal Behaviour, Journal Year: 2016, Volume and Issue: 116, P. 99 - 112

Published: April 29, 2016

Language: Английский

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Are commonly used metrics of bird song complexity concordant?

Ornithology, Journal Year: 2019, Volume and Issue: 136(1)

Published: Jan. 1, 2019

Abstract Researchers studying the evolution of animal communication often ask what generates and maintains signal complexity, but they define measure complexity in different ways. If metrics are not concordant, then studies using them probably comparable. In this study, we asked whether 7 bird song vary tandem among individuals a single species, Rock Wren (Salpinctes obsoletus). The included were chosen because regularly used by researchers field to test hypotheses within literature. Results indicated that none positively correlated with any others, suggesting songs under general selective pressures favoring increased across multiple features. correlated, care should be taken when designing analyses comparing results. always clearly “complexity” investigation verify it has significance study species. Contradictory outcomes existing research into may result from fact word is represent independent traits.

Language: Английский

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Vocal athletics – from birdsong production mechanisms to sexy songs

Animal Behaviour, Journal Year: 2021, Volume and Issue: 184, P. 173 - 184

Published: May 20, 2021

Language: Английский

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Short- and long-term repeatability and pseudo-repeatability of bird song: sensitivity of signals to varying environments

Behavioral Ecology and Sociobiology, Journal Year: 2017, Volume and Issue: 71(10)

Published: Sept. 26, 2017

Language: Английский

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Multi-modal signal evolution in birds: re-examining a standard proxy for sexual selection

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2018, Volume and Issue: 285(1889), P. 20181557 - 20181557

Published: Oct. 17, 2018

Sexual selection is proposed to be an important driver of speciation and phenotypic diversification in animal systems. However, previous phylogenetic tests have produced conflicting results, perhaps because they focused on a single signalling modality (visual ornaments), whereas sexual may act alternative modalities (e.g. acoustic ornaments). Here, we compile data from 259 avian sister species pairs assess the relationship between visible plumage dichromatism—a standard index birds—and macroevolutionary divergence other major modality: song. We find evidence for strong negative degree dichromatism song traits, which remains significant even when accounting key factors, including habitat type, ecological interspecific interactions. This opposite pattern expected by straightforward interpretation selection–diversification hypothesis, whereby higher levels indicating should related greater mating signal regardless modality. Our findings imply ‘trade-off’ elaboration visual ornaments signals, suggest that effects can only determined considering multiple modalities.

Language: Английский

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Females prefer the calls of better fathers in a Neotropical frog with biparental care

Behavioral Ecology, Journal Year: 2019, Volume and Issue: unknown

Published: Sept. 6, 2019

Abstract Male secondary sexual traits potentially function as indicators of direct or indirect fitness benefits to females. Direct benefits, such paternal care, may be especially important females in species with biparental care. In an experimental field study the golden rocket frog (Anomaloglossus beebei), a Neotropical we tested predictions from four hypotheses proposed explain evolutionary relationship between male and care quality (the “good parent,” “differential allocation,” “trade-off,” “essential care” hypotheses). We examined: 1) influence on offspring survival, 2) relationships calls maternal opportunities for males acquire multiple mates, 3) female preferences three acoustic properties advertisement calls. Our results reveal that positively impacts producing longer also provide higher-quality form greater egg attendance territory defense, prefer Females did not discriminate among potential mates based differences dominant frequency call rate. These findings, which suggest are consistent good parent hypothesis inconsistent trade-off, differential allocation, essential hypotheses.

Language: Английский

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Seasonal patterns of nocturnal singing by ovenbirds and white-throated sparrows

Behaviour, Journal Year: 2017, Volume and Issue: 154(13-15), P. 1275 - 1295

Published: Jan. 1, 2017

Abstract Recent research suggests that many diurnal songbirds also sing at night. The functions of nocturnal singing by diurnally active birds are not well understood. We used automated recorders to record from May through July 2014. examined how date, temperature, wind, weather, and lunar phase influenced vocal behaviour. found ovenbirds white-throated sparrows was related date with clear seasonal patterns did mirror the dawn chorus. Nocturnal rates declined seasonally, but peaked earlier for than ovenbirds. Both species sang less often on nights a full moon or precipitation. Ovenbirds fewer songs cold windy while cloudy nights. show song is shaped environmental factors shows pattern may be useful gaining insights into song.

Language: Английский

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The evolution of paternal care: a role for microbes?

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2020, Volume and Issue: 375(1808), P. 20190599 - 20190599

Published: Aug. 9, 2020

Paternal care, particularly in cases of uncertain paternity, carries significant costs. Extensive research, both theoretical and experimental, has explored the conditions which paternal care behaviour would be favoured. Common explanations include an adjustment with uncertainty paternity limited accuracy parentage assessment. Here, we propose a new explanation that microbes may play role evolution among their hosts. Using computational models, demonstrate associated increased could favoured by natural selection. We find microbe-induced evolve under wider than suggested genetic models. Moreover, show is more likely to when considering interactions increase microbial transmission, such as feeding grooming. Our results imply factors affecting composition host microbiome also alter behaviour. This article part theme issue 'The evolution'.

Language: Английский

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Like Father Like Son: Cultural and Genetic Contributions to Song Inheritance in an Estrildid Finch

Frontiers in Psychology, Journal Year: 2021, Volume and Issue: 12

Published: June 4, 2021

Social learning of vocalizations is integral to song inheritance in oscine passerines. However, other factors, such as genetic and the developmental environment, can also influence phenotype. The relative contributions these factors have a strong on evolution may affect important evolutionary processes speciation. are well-described only for few species likely vary with taxonomy. Using archived data, we examined patterns domestic population Java sparrows ( Lonchura oryzivora ), some which had been cross-fostered. Six-hundred seventy-six songs from 73 birds were segmented classified into notes note subtypes N = 22,972), range acoustic features measured. Overall, found evidence cultural structure characteristics notes; sons’ syntax composition similar that their social fathers not influenced by relatedness. For vocal consistency subtypes, measure performance, there was no apparent or inheritance, but both age environment consistency. These findings suggest high fidelity material, i.e., characteristics, could allow novel variants be preserved accumulate over generations, implications conservation. differences performance do show links instead potentially serving condition dependent signals.

Language: Английский

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What is the whistle all about? A study on whistle songs, related male characteristics, and female song preferences in common nightingales

Journal of Ornithology, Journal Year: 2015, Volume and Issue: 157(1), P. 49 - 60

Published: June 8, 2015

Language: Английский

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