The Swamp Sparrow, Melospiza Georgiana, as a Host for Long-Term Arbovirus Studies

Bird-Banding ◽  
1967 ◽  
Vol 38 (1) ◽  
pp. 80
Author(s):  
Kathleen S. Anderson ◽  
Robert J. Tonn ◽  
Elizabeth J. Randall ◽  
Andrew Main
Keyword(s):  
Swamp Sparrow ◽  
Melospiza Georgiana

scholarly journals Stable-Isotope (C, N, H) Analyses Help Locate the Winter Range of the Coastal Plain Swamp Sparrow (Melospiza Georgiana Nigrescens)

The Auk ◽  
2007 ◽  
Vol 124 (4) ◽  
pp. 1137-1148 ◽  
Author(s):  
Russell Greenberg ◽  
Peter P. Marra ◽  
Matthew J. Wooller
Keyword(s):  
South Carolina ◽  
Stable Isotope ◽  
Coastal Plain ◽  
Isotope Analysis ◽  
Coastal Region ◽  
Breeding Habitat ◽  
Δ13c And Δ15n ◽  
Swamp Sparrow ◽  
Brackish Marshes ◽  
Melospiza Georgiana

Abstract Some taxa of North American birds have unknown winter ranges, because of the difficulty in tracking individuals between seasons. Stable isotopes may provide clues to help locate these nonbreeding populations. Previously, no valid records existed for the Coastal Plain Swamp Sparrow (Melospiza georgiana nigrescens) from October to late April. We used stable-isotope (C, N, and H) analyses to provide estimates of where molt occurs and then searched those areas for individuals of this species. The δ13C and δ15N of rump feathers were consistent with the Coastal Plain Swamp Sparrow molting in more saline marshes than the nominate subspecies after the breeding season, which confirms what was already known. The values for the same isotopes from crown feathers revealed that winter molt in the Coastal Plain Swamp Sparrow probably occurred in similar coastal brackish habitats. The δD of crown feathers indicated that prebreeding molt occurred at latitudes between South Carolina and Virginia. A subsequent search of this region located 18 Coastal Plain Swamp Sparrows, all of which were found in North Carolina or southeastern Virginia. Coastal Plain Swamp Sparrows were found predominantly in brackish marshes similar to their breeding habitat. On the basis of these observations, it appears that Coastal Plain Swamp Sparrows undergo a short southerly migration to a coastal region with substantially warmer winter conditions. This study is the first to make a specific geographic prediction based on stable-isotope analysis and to test the prediction in the field. Análisis de Isótopos Estables (C, N, H) Ayudan a Localizar la Distribución Invernal de Melospiza georgiana nigrescens

The Response of Swamp Sparrows To Acoustically Distinct Song Types

Behaviour ◽  
1982 ◽  
Vol 80 (1-2) ◽  
pp. 70-83 ◽  
Author(s):  
Peter Marler ◽  
Margaret H. Searcy ◽  
William A. Searcy
Keyword(s):  
Song Type ◽  
Repeated Presentation ◽  
Swamp Sparrow ◽  
Differential Reaction ◽  
Different Types ◽  
Melospiza Georgiana ◽  
Previously Treated ◽  
To Come ◽  
Song Types ◽  
Measured Response

AbstractMale and femal swamp sparrows (Melospiza georgiana) were tested for differential reaction to four acoustically distinct swamp sparrow song types. We tested males by playing bouts of single song types from speakers placed on male territories. Males gave the same kinds of aggressive responses to each of the four song types, and there were no quantitative differences in the strengths of the responses to the different types. In the experiments with females, we played songs to captive female swamp sparrows previously treated with estradiol, and measured response in terms of copulation solicitation display. Females displayed in response to all four song types, and again there were no quantitative differences in the strength of response to the different types. We conclude that different swamp sparrow song types do not convey different messages to either male or female listeners. Although the identity of the particular song type presented was unimportant, the number of types presented was important, at least to females. Females responded more strongly overall to bouts of four song types than to bouts of single song types. This result occurred because females habituated to the repeated presentation of a single song type, and showed a recovery in response when song types were switched. We conclude that the ability to sing multiple song types may aid males in stimulating females to come into reproductive condition and then copulate.

Swamp Sparrow (Melospiza georgiana)

2019 ◽  
Author(s):  
John A. Herbert ◽  
Thomas B. Mowbray
Keyword(s):  
Swamp Sparrow ◽  
Melospiza Georgiana

scholarly journals Typical versions of learned swamp sparrow song types are more effective signals than are less typical versions

2014 ◽  
Vol 281 (1785) ◽  
pp. 20140252 ◽  
Author(s):  
R. F. Lachlan ◽  
R. C. Anderson ◽  
S. Peters ◽  
W. A. Searcy ◽  
S. Nowicki
Keyword(s):  
Computational Methods ◽  
Song Learning ◽  
Song Type ◽  
Syllable Type ◽  
Male And Female ◽  
Large Sample ◽  
Swamp Sparrow ◽  
Melospiza Georgiana ◽  
Cluster A ◽  
Song Types

The learned songs of songbirds often cluster into population-wide types. Here, we test the hypothesis that male and female receivers respond differently to songs depending on how typical of those types they are. We used computational methods to cluster a large sample of swamp sparrow ( Melospiza georgiana ) songs into types and to estimate the degree to which individual song exemplars are typical of these types. We then played exemplars to male and female receivers. Territorial males responded more aggressively and captive females performed more sexual displays in response to songs that are highly typical than to songs that are less typical. Previous studies have demonstrated that songbirds distinguish song types that are typical for their species, or for their population, from those that are not. Our results show that swamp sparrows also discriminate typical from less typical exemplars within learned song-type categories. In addition, our results suggest that more typical versions of song types function better, at least in male–female communication. This finding is consistent with the hypothesis that syllable type typicality serves as a proxy for the assessment of song learning accuracy.

Swamp Sparrow (Melospiza georgiana)

2020 ◽  
Author(s):  
John A. Herbert ◽  
Thomas B. Mowbray
Keyword(s):  
Swamp Sparrow ◽  
Melospiza Georgiana
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