POINT-TRANSECT SURVEYS FOR SONGBIRDS: ROBUST METHODOLOGIES. Buckland, S. T. The Auk, 123(2):345–357, April, 2006. ![POINT-TRANSECT SURVEYS FOR SONGBIRDS: ROBUST METHODOLOGIES [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Point-transect sampling is widely used for monitoring trends in abundance of songbirds. It is conceptualized as a “snapshot” method in which birds are “frozen” at a single location. With conventional methods, an observer records birds detected from a point for several minutes, during which birds may move around. This generates upward bias in the density estimate. I compared this conventional approach with two other approaches: in one, the observer records locations of detected birds at a snapshot moment; in the other, distances to detected cues (songbursts), rather than birds, are recorded. I implemented all three approaches, together with line-transect sampling and territory mapping in a survey of four bird species. The conventional method gave a biased estimate of density for one species. The snapshot method was found to be the most efficient of the point-sampling methods. Line-transect sampling proved more efficient than the point-sampling methods for all four species. This is likely to be generally true, provided that terrain and habitat allow easy use of a design with random transect lines. I concluded that the snapshot method is more appropriate than the conventional timed-count method for surveying songbirds. Although precision was rather poor with the cue-based method (partly because too few resources were devoted to cue rate estimation), it may be particularly useful for some single-species surveys. In addition, it is the only valid method for estimating abundance from surveys in which acoustic equipment is used to detect birds.Muestreos en Transectos Puntuales para Aves Canoras: Metodologías Robustas
@article{buckland_point-transect_2006,
title = {{POINT}-{TRANSECT} {SURVEYS} {FOR} {SONGBIRDS}: {ROBUST} {METHODOLOGIES}},
volume = {123},
issn = {0004-8038, 1938-4254},
shorttitle = {{POINT}-{TRANSECT} {SURVEYS} {FOR} {SONGBIRDS}},
url = {https://bioone.org/journals/The-Auk/volume-123/issue-2/0004-8038(2006)123[345:PSFSRM]2.0.CO;2/POINT-TRANSECT-SURVEYS-FOR-SONGBIRDS-ROBUST-METHODOLOGIES/10.1642/0004-8038(2006)123[345:PSFSRM]2.0.CO;2.full},
doi = {10.1642/0004-8038(2006)123[345:PSFSRM]2.0.CO;2},
abstract = {Point-transect sampling is widely used for monitoring trends in abundance of songbirds. It is conceptualized as a “snapshot” method in which birds are “frozen” at a single location. With conventional methods, an observer records birds detected from a point for several minutes, during which birds may move around. This generates upward bias in the density estimate. I compared this conventional approach with two other approaches: in one, the observer records locations of detected birds at a snapshot moment; in the other, distances to detected cues (songbursts), rather than birds, are recorded. I implemented all three approaches, together with line-transect sampling and territory mapping in a survey of four bird species. The conventional method gave a biased estimate of density for one species. The snapshot method was found to be the most efficient of the point-sampling methods. Line-transect sampling proved more efficient than the point-sampling methods for all four species. This is likely to be generally true, provided that terrain and habitat allow easy use of a design with random transect lines. I concluded that the snapshot method is more appropriate than the conventional timed-count method for surveying songbirds. Although precision was rather poor with the cue-based method (partly because too few resources were devoted to cue rate estimation), it may be particularly useful for some single-species surveys. In addition, it is the only valid method for estimating abundance from surveys in which acoustic equipment is used to detect birds.Muestreos en Transectos Puntuales para Aves Canoras: Metodologías Robustas},
number = {2},
urldate = {2019-04-25},
journal = {The Auk},
author = {Buckland, Stephen T.},
month = apr,
year = {2006},
pages = {345--357},
}
Downloads: 0
{"_id":"XwvSSCExFfCcogMRf","bibbaseid":"buckland-pointtransectsurveysforsongbirdsrobustmethodologies-2006","authorIDs":[],"author_short":["Buckland, S. T."],"bibdata":{"bibtype":"article","type":"article","title":"POINT-TRANSECT SURVEYS FOR SONGBIRDS: ROBUST METHODOLOGIES","volume":"123","issn":"0004-8038, 1938-4254","shorttitle":"POINT-TRANSECT SURVEYS FOR SONGBIRDS","url":"https://bioone.org/journals/The-Auk/volume-123/issue-2/0004-8038(2006)123[345:PSFSRM]2.0.CO;2/POINT-TRANSECT-SURVEYS-FOR-SONGBIRDS-ROBUST-METHODOLOGIES/10.1642/0004-8038(2006)123[345:PSFSRM]2.0.CO;2.full","doi":"10.1642/0004-8038(2006)123[345:PSFSRM]2.0.CO;2","abstract":"Point-transect sampling is widely used for monitoring trends in abundance of songbirds. It is conceptualized as a “snapshot” method in which birds are “frozen” at a single location. With conventional methods, an observer records birds detected from a point for several minutes, during which birds may move around. This generates upward bias in the density estimate. I compared this conventional approach with two other approaches: in one, the observer records locations of detected birds at a snapshot moment; in the other, distances to detected cues (songbursts), rather than birds, are recorded. I implemented all three approaches, together with line-transect sampling and territory mapping in a survey of four bird species. The conventional method gave a biased estimate of density for one species. The snapshot method was found to be the most efficient of the point-sampling methods. Line-transect sampling proved more efficient than the point-sampling methods for all four species. This is likely to be generally true, provided that terrain and habitat allow easy use of a design with random transect lines. I concluded that the snapshot method is more appropriate than the conventional timed-count method for surveying songbirds. Although precision was rather poor with the cue-based method (partly because too few resources were devoted to cue rate estimation), it may be particularly useful for some single-species surveys. In addition, it is the only valid method for estimating abundance from surveys in which acoustic equipment is used to detect birds.Muestreos en Transectos Puntuales para Aves Canoras: Metodologías Robustas","number":"2","urldate":"2019-04-25","journal":"The Auk","author":[{"propositions":[],"lastnames":["Buckland"],"firstnames":["Stephen","T."],"suffixes":[]}],"month":"April","year":"2006","pages":"345–357","bibtex":"@article{buckland_point-transect_2006,\n\ttitle = {{POINT}-{TRANSECT} {SURVEYS} {FOR} {SONGBIRDS}: {ROBUST} {METHODOLOGIES}},\n\tvolume = {123},\n\tissn = {0004-8038, 1938-4254},\n\tshorttitle = {{POINT}-{TRANSECT} {SURVEYS} {FOR} {SONGBIRDS}},\n\turl = {https://bioone.org/journals/The-Auk/volume-123/issue-2/0004-8038(2006)123[345:PSFSRM]2.0.CO;2/POINT-TRANSECT-SURVEYS-FOR-SONGBIRDS-ROBUST-METHODOLOGIES/10.1642/0004-8038(2006)123[345:PSFSRM]2.0.CO;2.full},\n\tdoi = {10.1642/0004-8038(2006)123[345:PSFSRM]2.0.CO;2},\n\tabstract = {Point-transect sampling is widely used for monitoring trends in abundance of songbirds. It is conceptualized as a “snapshot” method in which birds are “frozen” at a single location. With conventional methods, an observer records birds detected from a point for several minutes, during which birds may move around. This generates upward bias in the density estimate. I compared this conventional approach with two other approaches: in one, the observer records locations of detected birds at a snapshot moment; in the other, distances to detected cues (songbursts), rather than birds, are recorded. I implemented all three approaches, together with line-transect sampling and territory mapping in a survey of four bird species. The conventional method gave a biased estimate of density for one species. The snapshot method was found to be the most efficient of the point-sampling methods. Line-transect sampling proved more efficient than the point-sampling methods for all four species. This is likely to be generally true, provided that terrain and habitat allow easy use of a design with random transect lines. I concluded that the snapshot method is more appropriate than the conventional timed-count method for surveying songbirds. Although precision was rather poor with the cue-based method (partly because too few resources were devoted to cue rate estimation), it may be particularly useful for some single-species surveys. In addition, it is the only valid method for estimating abundance from surveys in which acoustic equipment is used to detect birds.Muestreos en Transectos Puntuales para Aves Canoras: Metodologías Robustas},\n\tnumber = {2},\n\turldate = {2019-04-25},\n\tjournal = {The Auk},\n\tauthor = {Buckland, Stephen T.},\n\tmonth = apr,\n\tyear = {2006},\n\tpages = {345--357},\n}\n\n\n\n\n\n\n\n","author_short":["Buckland, S. T."],"key":"buckland_point-transect_2006","id":"buckland_point-transect_2006","bibbaseid":"buckland-pointtransectsurveysforsongbirdsrobustmethodologies-2006","role":"author","urls":{"Paper":"https://bioone.org/journals/The-Auk/volume-123/issue-2/0004-8038(2006)123[345:PSFSRM]2.0.CO;2/POINT-TRANSECT-SURVEYS-FOR-SONGBIRDS-ROBUST-METHODOLOGIES/10.1642/0004-8038(2006)123[345:PSFSRM]2.0.CO;2.full"},"metadata":{"authorlinks":{}},"downloads":0,"html":""},"bibtype":"article","biburl":"https://bibbase.org/zotero/Dilljone","creationDate":"2020-06-16T14:23:32.361Z","downloads":0,"keywords":[],"search_terms":["point","transect","surveys","songbirds","robust","methodologies","buckland"],"title":"POINT-TRANSECT SURVEYS FOR SONGBIRDS: ROBUST METHODOLOGIES","year":2006,"dataSources":["RjvoQBP8rG4o3b4Wi","PCLgmPg2qmgXQKAK3"]}