Lincoln's Sparrow (Melospiza lincolnii)

1995 ◽  
Author(s):  
Elisabeth M. Ammon
Keyword(s):  
Melospiza Lincolnii

scholarly journals Song in the cold is ‘hot’: memory of and preference for sexual signals perceived under thermal challenge

2012 ◽  
Vol 8 (5) ◽  
pp. 751-753 ◽  
Author(s):  
Michaël Beaulieu ◽  
Keith W. Sockman
Keyword(s):  
Environmental Conditions ◽  
Thermal Environment ◽  
High Elevation ◽  
Sexual Signals ◽  
Sexual Signal ◽  
Male Song ◽  
In The Wild ◽  
Melospiza Lincolnii ◽  
Recorded Temperature

The environmental conditions under which signals are perceived can affect receiver responses. Many songbird populations produce a song chorus at dawn, when, in cold habitats, they would experience thermal challenge. We recorded temperature and the song activity of Lincoln's sparrows ( Melospiza lincolnii ) on a high-elevation meadow, and determined that song behaviour is concentrated around the coldest time of the day, at dawn. We hypothesized that this is because male song in the cold is more attractive to females than song in the warm. To test this, we exposed laboratory-housed Lincoln's sparrow females to songs at 1°C and 16°C, which they naturally experience in the wild. Females spent 40 per cent more time close to the speaker during playback at 1°C than at 16°C. When tested at 16°C 1–2 days later, females biased their movement towards the speaker playing songs previously heard at 1°C over 16°C. Thus, female Lincoln's sparrows remembered and affiliated with songs they heard under thermal challenge, indicating that the thermal environment can affect the attractiveness of a sexual signal.

Racial Differentiation in Passerella (Melospiza) lincolnii

The Condor ◽  
1935 ◽  
Vol 37 (3) ◽  
pp. 144-160 ◽  
Author(s):  
Alden H. Miller ◽  
T. T. McCabe
Keyword(s):  
Racial Differentiation ◽  
Melospiza Lincolnii

scholarly journals Song Competition Affects Monoamine Levels in Sensory and Motor Forebrain Regions of Male Lincoln's Sparrows (Melospiza lincolnii)

PLoS ONE ◽  
2013 ◽  
Vol 8 (3) ◽  
pp. e59857 ◽  
Author(s):  
Kendra B. Sewall ◽  
Samuel P. Caro ◽  
Keith W. Sockman
Keyword(s):  
Melospiza Lincolnii

scholarly journals Annual Survival Rates of Wintering Sparrows: Assessing Demographic Consequences of Migration

The Auk ◽  
2002 ◽  
Vol 119 (1) ◽  
pp. 149-165 ◽  
Author(s):  
Brett K. Sandercock ◽  
Alvaro Jaramillo
Keyword(s):  
Time Allocation ◽  
Short Distance ◽  
Evolutionary Ecology ◽  
Migratory Birds ◽  
Puget Sound ◽  
Survival Rates ◽  
Long Distance ◽  
Zonotrichia Leucophrys ◽  
Local Survival ◽  
Melospiza Lincolnii

AbstractThe demographic consequences of migration have important implications for both evolutionary ecology and conservation biology. We investigated local survival rates for six populations of sparrows at a wintering site. Recent developments in mark–recapture statistics were applied to a 13 year dataset with large numbers of marked individuals (n = 1,632 to 4,394). The study taxa were closely related, and included one resident species (Song Sparrow [Melospiza melodia gouldii]), one short-distance migrant (“Puget Sound” White-crowned Sparrow [Zonotrichia leucophrys pugetensis]), two moderate-distance migrants (Lincoln's [Melospiza lincolnii] and Fox [Passerella iliaca] sparrow), and two long-distance migrants (“Gambel's” White-crowned [Zonotrichia leucophrys gambelii] and Golden-crowned [Zonotrichia atricapilla] sparrow). A literature review demonstrated a cline in fecundity among these sparrows: resident and short-distance migrants laid multiple clutches of few eggs, whereas long-distance migrants tended to produce one large clutch. Annual rates of local survival were low in the interval after first capture (<0.35), possibly because of variation in true survival, site-fidelity, presence of transients and heterogeneity of capture. Estimates of local survival among birds that returned at least once were more robust and were comparable among Song (0.558 ± 0.054 SE), Puget Sound White-crowned (0.461 ± 0.026), Lincoln's (0.456 ± 0.066), Fox (0.352 ± 0.0), Golden-crowned (0.422 ± 0.023) and Gambel's White-crowned (0.432 ± 0.0) sparrows. Estimates of survivorship for Lincoln's and Fox sparrows are among the first values available for those species. Local survival was not higher among resident than migratory taxa, nor did it covary with migration distance among migratory species. These results did not support the time-allocation hypothesis of Greenberg (1980), but are consistent with aspects of bet-hedging theory. While these analyses have potential implications for conservation of migratory birds, further work is required to establish whether these patterns are applicable to Neotropical migrants.

scholarly journals Sex Differences in Forebrain Monoaminergic Response to Song Performance

2017 ◽  
Vol 89 (3) ◽  
pp. 219-230 ◽  
Author(s):  
Susan M. Lyons ◽  
Keith W. Sockman
Keyword(s):  
Sex Differences ◽  
Social Behavior ◽  
High Performance ◽  
Sensory Systems ◽  
Sexual Signals ◽  
Social Signals ◽  
Social Stimuli ◽  
Melospiza Lincolnii ◽  
Low Performance ◽  
Caudomedial Nidopallium

In many species, successful reproduction is dependent on the ability to adjust social behavior in response to an ever-changing social environment. Because a sexual signal's value and meaning can differ between females and males, responses to those signals should also differ. One way individuals can modulate social behavior is through experience-dependent modulation of the sensory systems that process social signals. Central monoamines (norepinephrine, dopamine, serotonin) modulate neural sensitivity to social stimuli and are key regulators of experience-dependent neuroplasticity in vertebrate sensory systems. However, few studies have examined how exposure to different sexual signals influences monoaminergic activity in female compared to male sensory systems. We used Lincoln's sparrows (Melospiza lincolnii) to examine sex differences in how variation in the trill performance of song influences central monoaminergic activity in the auditory telencephalon. Trill performance measures the rate at which a song syllable is produced relative to the syllable's frequency bandwidth and is thought to reflect the difficulty with which songs are produced. High-performance trills are more threatening to males but more attractive to females. We found that the effects of trill performance on monoaminergic activity were sex-dependent. Relative to the response to low-performance songs, exposure to high-performance songs decreased noradrenergic activity in the caudomedial nidopallium, and tended to decrease serotoninergic activity in the caudomedial mesopallium and caudomedial nidopallium of the auditory telencephalon in females, but in males, the monoamine measurements were indistinguishable between song treatments. These results suggest that the mechanisms underlying sensory processing of male sexual signals differ between the sexes.

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