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Social and Behavioral Sciences Commons™
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Articles 1 - 4 of 4
Full-Text Articles in Social and Behavioral Sciences
Identification Of Sprague's Pipit Nest Predators, Stephen K. Davis, Stephanie L. Jones, Kimberly Dohms, Teslin Holmes
Identification Of Sprague's Pipit Nest Predators, Stephen K. Davis, Stephanie L. Jones, Kimberly Dohms, Teslin Holmes
USGS Northern Prairie Wildlife Research Center
Nest predation is the primary factor influencing grassland songbird reproductive success. Understanding factors driving spatial and temporal variation in nest survival requires that we identify the primary nest predators and factors influencing predator abundance and behavior. Predation events are rarely witnessed, and the identification of nest predators is inferred, often incorrectly, from nest remains or observations of potential predators. We used video photography to identify predators of Sprague's Pipit (Anthus spragueii) nests in Saskatchewan and Montana. We monitored 60 nests in Saskatchewan and 11 nests in Montana and documented at least ten different species preying upon eggs and …
Conservation Implications When The Nest Predators Are Known, Frank Thompson, C.A. Ribic
Conservation Implications When The Nest Predators Are Known, Frank Thompson, C.A. Ribic
USGS Northern Prairie Wildlife Research Center
Conservation and management of passerines has largely focused on habitat manipulation or restoration because the natural communities on which these birds depend have been destroyed and fragmented. However, productivity is another important aspect of avian conservation, and nest predation can be a large source of nesting mortality for passerines. Recent studies using video surveillance to identify nest predators allow researchers to start evaluating what methods could be used to mitigate nest predation to help passerines of conservation concern. From recent studies, we identified latitudinal and habitat-related patterns in the importance of predator groups that depredate passerine nests. We then reviewed …
Knowledge Gained From Video-Monitoring Grassland Passerine Nests, P. J. Pietz, D.A. Granfors, C.A. Ribic, F. R. Thompson
Knowledge Gained From Video-Monitoring Grassland Passerine Nests, P. J. Pietz, D.A. Granfors, C.A. Ribic, F. R. Thompson
USGS Northern Prairie Wildlife Research Center
In the mid-1990s, researchers began to adapt miniature cameras to video-record activities :rt cryptic passerine nests in grasslands. In the subsequent decade, use of these video surveillance systems spread dramatically, leading to major strides in our knowledge of nest predation and nesting ecology of many species. Studies using video nest surveillance have helped overturn or substantiate many long-standing assumptions and provided insights on a wide range of topics. For example, researchers using video data have (1) identified an extensive and highly dynamic predator community in grasslands that varies both temporally (e.g., by time of day, nest age, season, year) and …
Bird Productivity And Nest Predation In Agricultural Grasslands, C.A. Ribic, Michael Guzy, Travis Anderson, David Sample, Jamie Nack
Bird Productivity And Nest Predation In Agricultural Grasslands, C.A. Ribic, Michael Guzy, Travis Anderson, David Sample, Jamie Nack
USGS Northern Prairie Wildlife Research Center
Effective conservation strategies for grassland birds in agricultural landscapes require understanding how nesting success varies among different grassland habitats. A key component to this is identifying nest predators and how these predators vary by habitat. We quantified nesting activity of obligate grassland birds in three habitats [remnant prairie, cool-season grass Conservation Reserve Program (CRP) fields, and pastures) in southwest Wisconsin, 2002-2004. We determined nest predators using video cameras and examined predator activity using track stations. Bobolink (Dolichonyx oryzivorus) and Henslow's Sparrow (Ammodramus henslowii) nested primarily in CRP fields, and Grasshopper Sparrow (A. savannarum) in …