Geographic Variation in Song of Gambel's White-Crowned Sparrow

Behaviour ◽  
1998 ◽  
Vol 135 (3) ◽  
pp. 321-342 ◽  
Author(s):  
Douglas Nelson
Keyword(s):  
Species Recognition ◽  
Local Level ◽  
Acoustic Features ◽  
Long Distance ◽  
Zonotrichia Leucophrys ◽  
Song Recognition ◽  
Song Variation ◽  
Males And Females ◽  
Dialect Recognition ◽  
Song Types

AbstractWhite-crowned sparrow (Zonotrichia leucophrys) song varies geographically, often forming local 'dialects' in sedentary and short-distance migratory subspecies. In playback experiments males and females can distinguish this variation. Gambel's white-crowned sparrow (Z. L. gambelii) is a long-distance migrant that breeds across subarctic Canada and Alaska. Previous studies identified a wide degree of song variation within local populations of this subspecies. I compared songs recorded in Alaska and Churchill, Manitoba, and found significant differences in acoustic structure. As in other subspecies, the most prominent differences occurred in the terminal trill portion of the song. In a playback experiment to territorial males at Churchill, males gave equivalent strong responses to both Alaska and local gambelii song, significantly weaker responses to mountain white-crowned sparrow (Z. L. oriantha) song, and the weakest responses to heterospecific song. I describe a model of song recognition in which 'dialect recognition' is a component of species recognition. I conclude that as a consequence of differences in the timing of song learning, the subspecies of white-crowned sparrow may differ in the acoustic features that they attend to in song recognition. The diversity of song types at a local level within gambelii populations may interfere with recognizing song differences between populations.

scholarly journals Responses of Adult White-Crowned Sparrows to Playback of Song Phrases: Implications for the Ontogeny of Song Recognition

The Condor ◽  
2002 ◽  
Vol 104 (4) ◽  
pp. 848-854 ◽  
Author(s):  
Jill A. Soha ◽  
Carol Whaling
Keyword(s):  
Developmental Change ◽  
Song Learning ◽  
Melospiza Melodia ◽  
Territorial Behavior ◽  
Song Sparrow ◽  
Vocal Response ◽  
Adult Males ◽  
Zonotrichia Leucophrys ◽  
Song Recognition ◽  
Song Types

Abstract We examined the contribution of individual song phrases to territorial behavior in Nuttall's White-crowned Sparrows (Zonotrichia leucophrys nuttalli) in the Bodega, California, dialect area. We presented territorial adult males with playbacks of five song types: local conspecific song, three single phrase types of local conspecific song, and Song Sparrow (Melospiza melodia) song. Local conspecific song evoked the strongest response, measured in latency to flight, number of flights, average and closest distance from playback speaker, and vocal response. Of individual song phrases, the trill evoked the strongest response, and the whistle evoked the weakest. Combining these results with those of previous studies on young birds, we describe a model of developmental change from responsiveness to all phrase types in dependent fledglings, through reliance on a species-universal phrase as a cue for song learning, to the use of a more variable, dialect-distinct phrase as a territorial signal by adults. Respuestas de Adultos de Zonotrichia leucophrys al Playback de Cantos: Implicancias para la Ontogenia del Reconocimiento de Cantos Resumen. Examinamos la contribución de frases individuales de canto al comportamiento territorial de Zonotrichia leucophrys nuttalli en el área del dialecto de Bodega, California. Enfrentamos a machos adultos territoriales con playbacks de cinco tipos de canto: canto local de aves coespecíficas, tres tipos de frases individuales de canto local de aves coespecíficas, y canto de Melospiza melodia. El canto local de aves coespecíficas produjo la respuesta más fuerte, medida como latencia a volar, número de vuelos, distancia media y mínima a la estación de playback, y respuesta vocal. De las frases individuales de canto, el trino produjo la respuesta más fuerte y el silbido la más débil. Combinando estos resultados con aquellos de estudios anteriores en aves jóvenes, describimos un modelo de cambio en las etapas del desarrollo del canto que va desde la respuesta a todos los tipos de frases en volantones dependientes, pasando por una etapa de dependencia de una frase común a todas las especies como guía para aprender cantos, hasta el uso de una frase dialéctica distintiva como señal territorial en los adultos.

The Significance of Song Variation in a Population of Darwin's Finches

Behaviour ◽  
1984 ◽  
Vol 89 (1-2) ◽  
pp. 90-116 ◽  
Author(s):  
B.R. Grant
Keyword(s):  
Kin Recognition ◽  
Species Recognition ◽  
Recognition System ◽  
Song Type ◽  
Adult Males ◽  
Effective Population ◽  
Song Variation ◽  
Breeding Territory ◽  
Short Period ◽  
Song Types

AbstractMales of Geospiza conirostris, the large cactus finch, on Isla Genovesa, Galápagos, sing a single, precisely copied song. There are two song types in the population, and these are sub-divided into 3 and 5 discrete song sub-types respectively. Adult males sing only one song sub-type throughout life. Sons sing the same song sub-type as their fathers' and do not copy the songs of either natal or breeding territory neighbours. Significantly more of the males holding territories with neighbours of unlike (heterotypic) song type obtain a female than males in territories with no heterotypic neighbour. Pairs in territories with a heterotypic neighbour fledge significantly more young than do pairs in territories with no heterotypic neighbour. Significantly more of those young born on territories with a heterotypic neighbour, that survive to become adults, obtain a mate, than do those surviving young born on territories with no heterotypic neighbour. The data are consistent with the hypothesis that the relative greater importance of song for species recognition in this population has made it advantageous for males to have a single, short, distinct, precisely copied and stable song. The necessity for recognizing both song types as conspecific has produced a unique mating pattern which favours pairs in territories with a heterotypic song neighbour. This allows young to associate visual and auditory cues of father and neighbouring male during the short period of imprinting. A small effective population size, combined with the observation that no female has been known to mate with a male of the same song sub-type as her father's, suggests a possible kin recognition system to avoid inbreeding.

scholarly journals The ascent and decline of a great balneological resort: PUCIOASA

2020 ◽  
pp. 498-500
Author(s):  
Doroteea TEOIBAS-SERBAN ◽  
Liviu IORDACHE ◽  
Dan BLENDEA
Keyword(s):  
Water Analysis ◽  
18Th Century ◽  
Local Level ◽  
Iron Concentration ◽  
Long Distance ◽  
Number Of Patients ◽  
The Government ◽  
High Level ◽  
In The Beginning ◽  
Rehabilitation Clinic

Introduction. Pucioasa is one of the greater and sadly, almost forgotten balneological resort of Romania. Known since the 18th century, where it was discovered a record of this area on the Austrian map in 1791 with sulphurous streams, the healing waters of the “Pe Pucioasa” hill enters the therapeutic balneological circle when the first water analysis occurred – 1821-1828 by Dr. Trangot von Schobel. In 1878, Ion Ghica, a prominent figure in Romania at that time initiated the exploitation of 14 wells from the 30 known streams of sulphurous and ferruginous waters, thus obtaining enough healing mineral water for a capacity of 60 beds of the balneological establishment. Since 1841, the Resort developed, transformed into a Rehabilitation Clinic (1969) and the number of patients treated there increased from 20 in the beginning to 1000 patient per day. Many of the patients included foreign elite society members who came regularly to benefit from the waters’ healing properties, both external and internal cures, setting Pucioasa on a high level of not only balneology treatment, but also of balneological tourism. Matherials and methods: Studying local industrializations and water analysis, we concluded that there were many factors that contributed to the decline of this great and international renowned balneological resort. The first wrong step in this direction was made when building and extending de gypsum carrier, the peek being between 1970 and 1975, when the industrial forging process made the sulphurous streams to migrate, and the waters from the wells diminished in its sulphur and iron concentration. Another possible factor for the decline can be the modernisation of the medical world, development of anti-inflammatory drugs and modern medical equipment which reduced the need for the elite society to come a long distance for the balneological treatment. Results: Whichever of the reasons, the once prosperous Balneological Resort of Pucioasa fell into an unknown, unimpressive place, known and frequented only by the locals. The Rehabilitation Clinic still has 60 beds, which are occupied to the maximum each month, it still prospers on a local level, but lost its glory from almost a century ago. Conclusions: The Romanian general population and the government must take an interest to one of the many once prosperous balneological resorts in order to revive the national treasure of Romania which is balneology, which many of the developed European countries only wish that they can possess. Keywords: Balneary Resort, Pucioasa,

scholarly journals An Investigation into Marmot Migration in Grand Teton National Park

1996 ◽  
Vol 20 ◽  
pp. 78-82
Author(s):  
George Montopoli ◽  
Nick Visser ◽  
Hank Harlow
Keyword(s):  
National Park ◽  
Movement Patterns ◽  
Snow Melt ◽  
Marmota Flaviventris ◽  
Long Distance ◽  
The North ◽  
North Fork ◽  
Males And Females ◽  
Study Sites ◽  
Long Distance Movement

In 1994 and 1995, a high abundant winter snowfall at higher elevations appeared to result in long distance movement patterns by yellow-bellied marmot (Marmota flaviventris) over snow to lower, snowfree elevations where food was more available. As the snow melted and food became abundant, the marmots return to higher altitudes. In 1996, we continued to investigate the potential for migrational movements, by studying two study sites at different elevations in the North Fork of Cascade Canyon. Four marmots at each site were implanted with intraperitoneal tracking transmitters. Of eight marmots that were equipped with intraperitoneal transmitters, six demonstrated significant movements of greater than 0.5 km, one did not, and one most likely died as a result of predation before any movement could be observed. Of the six that demonstrated significant movements within the canyon, only one moved distances greater than 1 km. Marmots, after emerging from hibernation, migrated down canyon to snowfree areas as they become available. With progressive snow melt, most marmots move upward to higher elevations, but not to the extent originally expected. Instead, they moved to the first available habitat where food was obtainable, and other (dominant) marmots accepted their presence. This movement is exhibited in both males and females, yearlings and adults, and melanistic and normal colored marmots.

scholarly journals Looking to a Digital Future

M/C Journal ◽  
1998 ◽  
Vol 1 (1) ◽  
Author(s):  
Nick Caldwell
Keyword(s):  
New Technologies ◽  
Service Providers ◽  
Local Level ◽  
Digital Transmission ◽  
Online News ◽  
Public Broadcasting ◽  
Long Distance ◽  
Internet Service ◽  
Existing Structures ◽  
The Government

The Australian Broadcasting Corporation is in the midst of significant change as a result of budgetary pressures from the government and the challenge of the oncoming digital age. Lack of funding and dwindling resources have forced the ABC to shut down many of its regional services and to outsource many of its formerly in-house productions. However, there do appear some ways in which the ABC might meet, as the rhetoric goes, "the challenge of the digital era". Traditionally, the role of the ABC has included the provision of comprehensive coverage of, and service for, the whole of Australia, including regions that would be economically unfeasible for commercial operations to penetrate. Recently, however, budgetary cuts have eroded this role substantially, with the axing of state based current affairs and the cessation of Radio Triple J's planned expansion into regional Australia. The Internet has provided a potential, if problematic, stop-gap solution, through the launch of the ABC's online news service. Internet based news solutions have few of the production-end overheads of the television service. There are no expensive studio set ups, no presenters, no cameras, just text that can be quickly keyed into the system and formatted for instantaneous, non-linear delivery. I should note at this point that currently, this "delivery" is in the passive sense of the word: users must search out the content and download it onto their machines. In Internet jargon, this is called "pull" technology. New technologies being developed promise to "push" the content automatically and directly to a user's computer. The ABC's implementation, taking advantage of all these benefits, is text-based, comprehensive, updated constantly, and easy to use. Currently, however, delivery of Internet-based content is tied to the existing phone network, and with most Internet service providers based in state capitals, regional Internet access is hindered by the cost of long-distance calls. The potential exists, nonetheless, for the ABC to achieve truly national coverage by methods that bypass existing structures. The planned shift by Australian TV networks to digital transmission has the potential to enable new possibilities for public broadcasting. A digital infrastructure could allow information and programming to be cheaply produced at the local level, then recompiled centrally and redistributed across the country. The convergence of computer and television will enable a greater variety of content to be sent to the home -- and, possibly, sent back out again in an altered form. Such a transformation of the way we experience television may well alter the concept of public broadcasting beyond recognition, if not render it obsolete. However, these possibilities, although reasonable given projected advances in technology, so far largely remain fantasy due to the debate over regulation between the Federal government and the commercial networks. It remains to be seen whether the ABC will be able to take advantage of the new opportunities. Citation reference for this article MLA style: Nick Caldwell. "Looking to a Digital Future: Thoughts on the New ABC." M/C Journal 1.1 (1998). [your date of access] <http://www.media-culture.org.au/9807/abc.php>. Chicago style: Nick Caldwell, "Looking to a Digital Future: Thoughts on the New ABC," M/C Journal 1, no. 1 (1998), <http://www.nedia-culture.org.au/9807/abc.php> ([your date of access]). APA style: Nick Caldwell. (1998) Looking to a digital future: thoughts on the new ABC. M/C Journal 1(1). <http://www.media-culture.org.au/9807/abc.php> ([your date of access]).

scholarly journals Anthropogenic noise affects winter song structure of a long-distance migrant, Gambel’s white-crowned sparrow

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Jennifer N Phillips ◽  
Madhusudan Katti
Keyword(s):  
Urban Areas ◽  
Noise Levels ◽  
Long Distance ◽  
Zonotrichia Leucophrys ◽  
Wintering Grounds ◽  
Song Structure ◽  
Habitat Features ◽  
Acoustic Mismatch ◽  
Breeding Grounds ◽  
Zonotrichia Leucophrys Gambelii

Abstract Many animals learn to produce acoustic signals that are used to attract mates and defend territories. The structure of these signals can be influenced by external features of the environment, including the anthropogenic soundscape. In many sedentary species, habitat features and soundscape appears to influence the cultural evolution of songs, often with tradeoffs for better transmission over sexually selected song structure. However, none have investigated whether noise on the wintering grounds affects song structure, which for long-distance migrants may result in an acoustic ‘mismatch’ when returning to a breeding ground. This study investigates urban noise effects on song structure in a long-distance migrant, Zonotrichia leucophrys gambelii, on the wintering grounds in the Fresno Clovis Metropolitan Area and in outlying non-urban areas. Songs and background noise levels were recorded concurrently, and song measurements of frequency and duration were examined differences across noise levels and habitats . We found that the buzz and trill decrease in bandwidth in the presence of noise. The length of the whistle and buzz portion of the song also tends to decreases with noise in urban habitats. This trend toward short, pure tones in noisy areas may transmit better in noisy urban winter habitats, but may not be adaptive on quieter breeding grounds. We suggest that future studies should consider whether winter auditory feedback and song learning environments have consequences for song crystallization and breeding success for long-distance migrants.

Newborns Crying in Different Contexts: Discrete or Graded Signals?

1998 ◽  
Vol 86 (3_suppl) ◽  
pp. 1123-1140 ◽  
Author(s):  
D. Lenti Boero ◽  
C. Bianchi ◽  
C. Volpe ◽  
A. Marcello ◽  
C. Lenti
Keyword(s):  
Time Window ◽  
Interesting Property ◽  
The Other ◽  
Acoustic Features ◽  
Acoustic Parameters ◽  
Long Distance ◽  
Human Infants ◽  
Context Type ◽  
Normal Human ◽  
Individual Specificity

The aim of this study was to investigate whether human infants' cries show individually and contextually discriminable acoustic parameters. 20 full-term normal human newborns (aged 1 to 4 days) had their cries recorded during routine blood withdrawal (pain context) 30 min. before a scheduled feeding (hunger context) and when subjected to kinetic stimuli during neurological examination (manipulation context). Type of cries, melodic contours, F0 parameters, but not the “macro” trend of the start of the fundamental frequency, indicated a difference in pain cries in the other two contexts. All the acoustic features considered showed an individual specificity. The peak frequencies of voiceless or partially voiced wails had the interesting property of being optimised as long distance signals. We hypothesised that this feature of infants' cries may have evolved in a time window when the infants were left in collective nurseries and not carried on the mothers' backs as maintained by the traditional view.

Migratory behaviour of captive white-crowned sparrows, Zonotrichia leucophrys gambelii, differs during autumn and spring migration

Behaviour ◽  
2006 ◽  
Vol 143 (10) ◽  
pp. 1219-1240 ◽  
Author(s):  
Marilyn Ramenofsky ◽  
Renée Agatsuma
Keyword(s):  
Life History ◽  
High Intensity ◽  
Primary Source ◽  
Migratory Restlessness ◽  
Long Distance ◽  
Free Living ◽  
Zonotrichia Leucophrys ◽  
Life History Stages ◽  
In Captivity ◽  
Zonotrichia Leucophrys Gambelii

AbstractGambel's white-crown sparrow (Zonotorichia leucophrys gambelii) is a long-distance, over-land migrant. In captivity birds display many characteristics of the autumn and spring migratory life history stages that include hyperphagia, fattening and high intensity nocturnal activity termed migratory restlessness or Zugunruhe. We recorded the behaviour of captive birds while simultaneously collecting 24 h locomotor activity. These data were used to define the behaviour displayed by captive birds during autumn and spring in order to compare the two migratory stages and to draw inferences for free-living birds. The predominant behaviour during day and nighttime was rest. Feeding occurred only during daylight hours but at a greater frequency in autumn than spring. Birds generally used their feet as the primary source of locomotion during the day termed 'jump'. During the night, two distinct behaviours, 'beak-up flight' and 'beak-up' involving high intensity wing motions were observed and considered components of migratory restlessness. The frequency of the 'beak-up flight' was greatest during spring and associated with the enhanced tempo of vernal migration. In both stages, migratory restlessness was preceded by a quiescent phase, the occurrence of which differed and related to time available for foraging and length of the night. Given these findings, we hypothesize that diel behaviours displayed by autumn and spring migrants in captivity highlight distinctions between the two life history stages.

Dominance and geographic information contained within black-capped chickadee (Poecile atricapillus) song

Behaviour ◽  
2013 ◽  
Vol 150 (13) ◽  
pp. 1601-1622 ◽  
Author(s):  
Allison H. Hahn ◽  
Lauren M. Guillette ◽  
Marisa Hoeschele ◽  
Daniel J. Mennill ◽  
Ken A. Otter ◽  
...  
Keyword(s):  
British Columbia ◽  
Discriminant Function ◽  
Dominance Rank ◽  
Geographic Location ◽  
Relative Amplitude ◽  
Complex Signal ◽  
Acoustic Features ◽  
Song Variation ◽  
Eastern Ontario ◽  
Discriminant Function Analyses

In songbirds, male song is an acoustic signal used to attract mates and defend territories. Typically, song is an acoustically complex signal; however, the fee-bee song of the black-capped chickadee is relatively simple. Despite this relative simplicity, two previous studies (Christie et al., 2004b; Hoeschele et al., 2010) found acoustic features within the fee-bee song that contain information regarding an individual’s dominance rank; however each of these studies reported a different dominance-related acoustic cue. Specifically, the relative amplitude of the two notes differed between the songs of dominant and subordinate males from northern British Columbia, while the interval pitch ratio differed between the songs of dominant and subordinate males from eastern Ontario. In the current study, we examined six acoustic features within songs from both of the chickadee populations (northern British Columbia and eastern Ontario) examined in these previous studies and used bioacoustic analyses and discriminant function analyses to determine whether there is a consistent dominance-related acoustic cue across both, or in each of these populations. Consistent with the previous findings, the current results indicate that relative amplitude differs based on dominance status in the songs from British Columbia; however, our results failed to reach significance with songs from Ontario. These results suggest that acoustic cues that signal a male’s dominance in this species vary with geographic location. Furthermore, examining songs from these two locations and one additional location in northern British Columbia, we found that discriminant function analyses could correctly classify songs based on geographic location. Considering the broad extent of the species’ range, black-capped chickadee song is considered relatively invariant; however, our results suggest that there is geographic variation in songs, although the differences are subtle compared to geographic song variation in other species.

Sign in / Sign up

Export Citation Format

Share Document