Effects of location in territory and distance from neighbours on the use of song repertoires by Carolina wrens

Simpson, Barbara S.

doi:10.1016/s0003-3472(85)80012-9

Cited by 56 publications

(34 citation statements)

References 30 publications

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“…It is true that the methods of staging intrasexual confrontations, and the methods of measuring repertoire use, differ somewhat between our study and those in which males were found to increase use of the repertoire in intrasexual situations (Falls and D'Agincourt 1982;Kramer et al 1985;Simpson 1985), but we doubt that these methodological differences are sufficient to explain the differences in results. Our methods are most comparable with those of Kramer et al (1985), who showed that song sparrows have a higher switching rate when confronted with playback plus a taxidermic mount of a male song sparrow than when confronted with playback alone.…”

Section: Discussioncontrasting

confidence: 61%

“…Catchpole's rule is also compatible with results in other species, showing bout complexity is increased for intersexual situations (D'Agincourt and Falls 1983;Derrickson 1987). However, the rule does not fit with the tendency to increase bout complexity for intrasexual encounters, which has been demonstrated in several species (Falls and D'Agincourt 1982;Kramer et al 1985;Simpson 1985).…”

Section: Discussionmentioning

confidence: 85%

“…Falls and D'Agincourt (1982) found that bout length (the number of consecutive repetitions of one song type) decreases during playback of conspecific song in eastern meadowlarks (Sturnella magna) but not in western meadowlarks (SturnelIa neglecta). Simpson (1985) showed that male Carolina wrens (Thryothorus ludovicianus) caged on their own territories increase their switching frequency (number of switches per 100 songs) in response to playback or to the proximity of another caged male. Correlational results suggest for a few species that males may also increase use of the repertoire in intersexual contexts.…”

Section: Introductionmentioning

confidence: 99%

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Use of the song repertoire in intersexual and intrasexual contexts by male red-winged blackbirds

Searcy

Yasukawa

1990

Behav Ecol Sociobiol

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Live and stuffed male and female red-winged blackbirds (Agelaius phoeniceus) were presented to territorial males in order to study the repertoire organization of males during intersexual and intrasexual encounters. Territorial male red-winged blackbirds switched song types more frequently and sang more song types in response to presentation of a female stimulus than during control periods, but decreased their switching frequency when a male stimulus was presented. Switching frequency in response to the female stimulus was three times that in response to the male stimulus. These results support the hypothesis that song repertoires of male redwinged blackbirds evolved primarily in response to intersexual rather than intrasexual selection. They also suggest that male red-winged blackbirds have been selected to de-emphasize their song repertoires during encounters with conspecific males as a result of some as yet unidentified cost.

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Section: Discussioncontrasting

confidence: 61%

Section: Discussionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

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Use of the song repertoire in intersexual and intrasexual contexts by male red-winged blackbirds

Searcy

Yasukawa

1990

Behav Ecol Sociobiol

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“…In birds, aggressiveness during ter-son 1986), and more. Little is known, however, about how ritorial behavior has been correlated with many individual aggression is influenced by habitat variation within a territory, and environmental factors including sex (Lynch et al 1985, and very few studies have simultaneously examined which of Marra 2000, Bard et al 2002, position of encounter within multiple variables most strongly affect bird aggression (but a territory (Wunderle 1978a, Simpson 1985, size of territory see Shy and Morton 2004). (Watson and Miller 1971), body size and age (Marra 2000),…”

Section: Introductionmentioning

confidence: 99%

Variation in Aggression of Black-throated Blue Warblers Wintering in Jamaica

Smith

Johnson²,

Campos

et al. 2012

The Condor

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Variation in aggression among birds on different territories has been hypothesized to be influenced by intrinsic factors such as a bird's age, sex, or size and extrinsic factors such as density of neighbors, abundance of food, or territory size. However, little work has examined how and why aggression may vary within a bird's home range. We examined variation in aggressive behaviors of nonbreeding Black-throated Blue Warblers {Setophaga caerulescens) in Jamaican coffee farms by using experimentally simulated intrusions into home ranges. Our multivariate models confirmed that multiple variables associated with aggression included sex, home range size, proximity of intrusion to home range center, and the presence of another aggressive bird in the area. In addition, we found that birds responded more aggressively to intrusions in shade trees, where insects were more abundant, than in the understory of coffee or of small patches of remnant forest. These results suggest the birds responded to variation in habitat and/or food supply within their home ranges and varied aggressive responses accordingly, revealing a finer scale of behavioral resource matching than previously documented for bird territoriality. Variación en la Agresión de Individuos de Setophaga caerulescens que Invernan en JamaicaResumen. Se ha hipotetizado que la variación en la agresión entre las aves en territorios diferentes está influenciada por factores intrínsecos como la edad del ave, el sexo y el tamaño, y por factores extrínsecos como la densidad de vecinos, la abundancia de alimentos o el tamaño del territorio. Sin embargo, poco se ha examinado cómo y por qué la agresión puede variar dentro del área de acción de un ave. Examinamos la variación en los comportamientos de agresión de individuos no reproductivos de Setophaga caerulescens en granjas de café de Jamaica mediante el empleo de simulaciones experimentales de intrusión en las áreas de acción. Nuestros modelos multivariados confirmaron que las variables asociadas con la agresión incluyeron sexo, tamaño del área de acción, proximidad de la intrusión al centro del área de acción y presencia de otra ave agresiva en el área. Adicionalmente, encontramos que las aves respondieron de forma más agresiva a las intrusiones en las plantaciones de café con árboles de sombra, donde los insectos fueron más abundantes, que en las plantaciones sin árboles de sombra o en pequeños parches remanentes de bosque. Estos resultados sugieren que las aves respondieron a variaciones en el habitat o en la provisión de alimentos dentro de sus áreas de acción y que de acuerdo a esto cambiaron sus respuestas agresivas, revelando una escala de más detalle de ajuste del comportamiento a los recursos de lo que se habla documentado previamente para la territorialidad de las aves.

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“…Information regarding the location and movements of an animal can provide crucial context when examining variation in signaling behaviors that may vary according to the location of the signaler (Simpson 1985, Haff et al 2015, and to studies of vocal interactions involving multiple individuals (Vehrencamp et al 2014). To fully realize this potential, it will be necessary to estimate not only the DOA of a source, but also its absolute location.…”

Section: Doa Estimation For Monitoring Movementsmentioning

confidence: 99%

Direction-of-arrival estimation of animal vocalizations for monitoring animal behavior and improving estimates of abundance

Hedley¹,

Huang²,

Yao³

2017

ACE

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ABSTRACT. Autonomous recording units (ARUs) show promise for improving the spatial and temporal coverage of biodiversity monitoring programs, and for improving the resolution with which the behaviors of animals can be monitored on small spatial scales. Most ARUs, however, provide the user with little to no ability to determine the direction of an incoming sound, a shortcoming that limits the utility of ARU recordings for assessing the abundance of animals. We present a recording system constructed from two Wildlife Acoustics SM3 recording units that can estimate the direction-of-arrival (DOA) of an incoming signal with high accuracy. Field tests of this system revealed that 95% of sounds were estimated within 12° of the true DOA in the azimuth angle and 9° in the elevation angle, and that the system was largely robust to background noise and accurate to at least 30 m. We tested the ability of the system to discriminate up to four simulated birds singing simultaneously and show that the system generally performed well at this task, but, as expected, fainter and longer sounds were more likely to be overlapped and therefore undetected by the system. We propose that a microphone system that can estimate the DOA of sounds, such as the system presented here, may improve the ability of ARUs to assess abundance during biodiversity surveys by facilitating more accurate localization of sounds in three dimensions. Estimation de la direction d'arrivée des vocalisations animales pour le suivi comportemental d'animaux et l'amélioration des estimations d'abondanceRÉSUMÉ. Les instruments d'enregistrement autonomes (IEA) sont prometteurs pour améliorer la couverture spatiale et temporelle des programmes de suivi de la biodiversité et améliorer la résolution à laquelle le comportement des animaux peut être suivi sur de petites échelles spatiales. Toutefois, la plupart des IEA ne permettent pas (ou très peu) à l'utilisateur de déterminer la direction d'un son; cette lacune limite l'utilité des enregistrements issus d'IEA pour ce qui est de l'évaluation de l'abondance des animaux. Dans la présente étude, nous présentons un système d'enregistrement conçu à l'aide de deux unités d'enregistrement « Wildlife Acoustics SM3 » qui peuvent estimer la direction d'arrivée (DA) d'un son avec une grande précision. Des tests de ce système sur le terrain ont révélé que 95 % des sons ont été estimés à l'intérieur de 12° de la DA réelle dans l'angle d'azimut et de 9° dans l'angle d'élévation; le système était très fiable malgré les bruits de fond et précis au moins jusqu'à 30 m. Nous avons testé la capacité du système à discriminer jusqu'à quatre oiseaux chantant simultanément (que nous avons simulés) et avons montré que le système performe généralement bien, mais comme attendu, les sons plus faibles et plus longs étaient davantage susceptibles d'être superposés et donc non détectés par le système. Nous croyons qu'un système de microphone qui permet d'estimer la DA des sons, comme le système ici présenté, peut améliorer la capacité des IEA à évalu...

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Effects of location in territory and distance from neighbours on the use of song repertoires by Carolina wrens

Cited by 56 publications

References 30 publications

Use of the song repertoire in intersexual and intrasexual contexts by male red-winged blackbirds

Use of the song repertoire in intersexual and intrasexual contexts by male red-winged blackbirds

Variation in Aggression of Black-throated Blue Warblers Wintering in Jamaica

Direction-of-arrival estimation of animal vocalizations for monitoring animal behavior and improving estimates of abundance

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