The historic and current status of the mountain plover in Montana

Knowles, Craig J.; Knowles, Pamela R.; Montana.,

doi:10.5962/bhl.title.69187

1998

DOI: 10.5962/bhl.title.69187

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The historic and current status of the mountain plover in Montana

Craig J. Knowles¹,

Pamela R. Knowles²,

Montana. Montana.³

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Cited by 2 publications

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“…Prairie dog colonies are one of the few remaining suitable habitat types for Mountain Plovers in Montana, and have experienced declines throughout the last century due to largescale poisoning and sylvatic plague (Olson andEdge 1985, Knowles 1999). Other habitats inhabited by breeding plovers in Montana include areas heavily grazed by domestic sheep in central Montana, and hardpan drainages and a former bentonite mining area in Valley County (Prellwitz 1993, Knowles andKnowles 1998). Plovers are either absent or occur in low densities in Montana outside of these habitats.…”

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Density and abundance of Mountain Plovers in northeastern Montana

Childers¹,

Dinsmore²

2008

The Wilson Journal of Ornithology

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Estimates of local abundance for declining species provide important information necessary for conservation measures. We estimated the density and abundance of Mountain Plover (Charadrius montanus) in Phillips and Valley counties in north-central Montana in 2004 using distance sampling methodology. Sampling efforts were stratified to include active prairie dog (Cynomys sp.) colonies, an Area of Critical Environmental Concern (ACEC) specifically established for Mountain Plover, and all other habitats. The density of plovers was greatest on prairie dog colonies (7.20 ± 0.42 [SE] plovers/km 2 ) and much lower on both the ACEC (1.60 ± 0.31 plovers/km 2 ), and all other habitats (0.07 ± 0.01 plovers/km 2 ). An estimated 1,028 (95% CI = 903-1,153) plovers inhabited this region in 2004, most (74%) on prairie dog colonies. Our results highlight the importance of prairie dog colonies to plovers in this region and suggest that as much as 10% of their continental population may breed in north-central Montana. This article is available at Iowa State University Digital Repository: http://lib.dr.iastate.edu/nrem_pubs/188BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Density and abundance of Mountain Plovers in northeastern MontanaAuthor ( BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses.Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne's Terms of Use, available at www.bioone.org/page/terms_of_use.Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. ABSTRACT.-Estimates of local abundance for declining species provide important information necessary for conservation measures. We estimated the density and abundance of Mountain Plover (Charadrius montanus) in Phillips and Valley counties in north-central Montana in 2004 using distance sampling methodology. Sampling efforts were stratified to include active prairie dog (Cynomys sp.) colonies, an Area of Critical Environmental Concern (ACEC) specifically established for Mountain Plover, and all other habitats. The density of plovers was greatest on prairie dog colonies (7.20 Ϯ 0.42 [SE] plovers/km 2 ) and much lower on both the ACEC (1.60 Ϯ 0.31 plovers/km 2 ), and all other habitats (0.07 Ϯ 0.01 plovers/km 2 ). An estimated 1,028 (95% CI ϭ 903-1,153) plovers inhabited this region in 2004, most (74%) on prairie dog colonies. Our results highlight the importance of prairie dog colonies to plovers in t...

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Density and abundance of Mountain Plovers in northeastern Montana

Childers¹,

Dinsmore²

2008

The Wilson Journal of Ornithology

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Avian diversity in a priority area for conservation in North America: the Janos-Casas Grandes Prairie Dog Complex and adjacent habitats in northwestern Mexico

et al. 2006

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From February 1994 to January 2004, we studied the avifauna of a 25,000-ha area centered on the Janos-Casas Grandes Prairie Dog Complex of Northwestern Chihuahua, Mexico. Avian diversity totalled 227 species, of which 86 (38%) were residents, 78 (35%) winter migrants, 30 (14%) summer migrants, 27 (11%) transients, and 6 (2%) accidental vagrants. Around 84 (38%) species were observed in at least two habitat types, with riparian areas supporting the highest observed diversity of birds (112 species). Of the 143 species observed in only one habitat type, 44 (30%) occurred in riparian areas, 35 (26%) in association with ponds and aquatic vegetation, 28 (20%) in grasslands, 16 (11%) in the oak woodland-grassland ecotone, 12 (9%) in mesquite scrubland, 5 (3%) around human settlements, and 3 (2%) in crop fields. In particular, summer rains influenced the abundance and/or distribution of several species in grasslands such as the long-billed curlew (Numenius americanus). The present study, which was part of a larger effort to document the merits of establishing a large biosphere reserve in the area, confirmed the importance of the prairie dog complex and grasslands to many species of conservation concern, including the threatened mountain plover (Charadrius montanus), a winter resident. With the higher-elevation habitats yet to be surveyed, the local diversity of bird species here already places the proposed reserve among the most important protected areas in all of Mexico. The establishment of the reserve is urgently needed, especially for the protection of grasslands and their associated fauna.

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The historic and current status of the mountain plover in Montana

Cited by 2 publications

References 9 publications

Density and abundance of Mountain Plovers in northeastern Montana

Density and abundance of Mountain Plovers in northeastern Montana

Avian diversity in a priority area for conservation in North America: the Janos-Casas Grandes Prairie Dog Complex and adjacent habitats in northwestern Mexico

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