Breeding Bird Assemblages in the Rio Grande Wild and Scenic River Recreation Area, New Mexico

Stahlecker, Dale W.; Kennedy, Patricia L.; Cully, Anne C.; Kuykendall, Charles B.

doi:10.2307/3671507

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…These species tended to occur more frequently and at higher densities away from the stream, regardless of pasture management. These results differ from studies conducted in forest and shrub species in western (Anderson et al 1994, Knopf 1985, southwestern (Medin and Clary 1991, Stahlecker et al 1989, Szaro 1981, and Great Plains (Lowther 1984, Stauffer and Best 1980, Tubbs 1980 riparian areas, which found higher bird species richness and/or density in riparian areas than in other habitats in general. In contrast to the previous studies, the vegetation structure adjacent to the pasture streams in our study does not differ dramatically from the structure in the rest of the pasture.…”

Section: Land Use Type Species Richness Total Densitycontrasting

confidence: 81%

Grassland birds associated with agricultural riparian practices in southwestern Wisconsin

Renfrew¹,

Ribic²

2001

REM

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Rotational grazing has been proposed as a Best Management Practice (BMP) for minimizing runoff in Wisconsin agricultural riparian areas. The influence of this land management practice on grassland birds has not been evaluated in relation to more traditional agricultural land management systems in Midwestern riparian areas. This study compared the grassland bird community in riparian areas in Wisconsin that were rotationally grazed to 2 common land use practices along streams in Wisconsin: continuously grazed pastures and rowcrop fields with 10-m-wide ungrazed buffer strips located along the stream. We calculated total number of birds, the Berger-Parker Index of Dominance, and number of birds ha-1 for each site. Vegetation variables used were height-density, litter depth, and percent bare ground. Bird species richness, species dominance, and density did not differ among land use types. In contrast, grassland bird species of management concern [Savannah Sparrow (Passerculus sandwichensis Gmelin), Eastern Meadowlark (Sturnella magna L.), and Bobolink (Dolichonyx oryzivorus L.)] were found on continuous and rotational pastures but very rarely or never occurred on buffer strips. Contrary to previous research, however, rotationally grazed pastures did not support more of these species than continuously grazed pastures. Bird density was related to vegetation structure, with higher densities found on sites with deeper litter. Within the pasture land use types, there were no consistent differences between species richness and density near the stream (<10 m) and away (>10 m).

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Section: Land Use Type Species Richness Total Densitycontrasting

confidence: 81%

Grassland birds associated with agricultural riparian practices in southwestern Wisconsin

Renfrew¹,

Ribic²

2001

REM

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“…The estimated densities of some species far exceed the breeding and migration densities reported elsewhere. The peak densities of Yellow Warblers (48.0 birds/ha) were much greater than reported breeding densities in southwestern riparian areas (San Pedro River, Arizona, peak of 5.7 birds/ha [Krueper 1992]; Rio Grande River, New Mexico, 3.3 birds/ha [Stahlecker et al 1989] and 0.6 birds/ha [V. C. Hink & R. D. Ohmart, unpublished manuscript]; and at 2500 m in Colorado, 2.5 birds/ha [Knopf et al 1988]), verifying that these stopover sites provide habitat for a great number of northbound migrants. Peak densities of Yellow Warblers, Wilson's Warblers (33.7 birds/ha), and Yellow-rumped Warblers (30.1 birds/ha) in this study also surpass estimates of densities during spring and fall migration along the Rio Grande (Yellow Warblers, Ͻ0.5 birds/ha in spring; Wilson's Warblers, 1.3 birds/ha in spring and 2.5 birds/ha in fall; Yellow-rumped Warblers, 5.1 birds/ha in spring and 22.1 birds/ha in fall; V. C. Hink and R. D. Ohmart, unpublished manuscript) and in a variety of habitats in the Chiricahua Mountains of southeastern Arizona (Yellow Warblers, 0.36 birds/ha in fall; Wilson's Warblers, 0.5 birds/ha in spring and 2.0 birds/ha in fall; Yellowrumped Warblers, 3.0 birds/ha in spring and 1.1 birds/ ha in fall ;Hutto 1985b).…”

Section: High Densities Of Migrating Birdsmentioning

confidence: 76%

Comparative Use of Riparian Corridors and Oases by Migrating Birds in Southeast Arizona

Skagen

Melcher

Howe

et al. 1998

Conservation Biology

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The relative importance of cottonwood-willow riparian corridors and isolated oases to land birds migrating across southeastern Arizona was evaluated during four spring migrations, 1989 to 1994, based on patterns of species richness, relative abundance, density, and body condition of birds. We surveyed birds in 13 study sites ranging in size and connectivity from small isolated patches to extensive riparian forest, sampled vegetation and insects, and captured birds in mistnets. The continuous band of riparian vegetation along the San Pedro River does not appear to be functioning as a corridor for many migrating species, although it may for a few, namely Yellow-breasted Chats ( Icteria virens ), Summer Tanagers ( Piranga rubra ), and Northern Rough-winged Swallows ( Steldigopteryx serripennis ), which account for fewer than 10% of the individuals migrating through the area. Small, isolated oases hosted more avian species than the corridor sites, and the relative abundances of most migrating birds did not differ between sites relative to size-connectivity. There were few differences in between-year variability in the relative abundances of migrating birds between corridor and oasis sites. Between-year variability decreased with overall abundance of species and was greater for species with breeding ranges that centered north of 50 Њ N latitude. Body condition of birds did not differ relative to the size-connectivity of the capture site, but individuals of species with more northerly breeding ranges had more body fat than species that breed nearby. Peak migration densities of several bird species far exceeded breeding densities reported for the San Pedro River, suggesting that large components of these species were en route migrants. Peak densities of Yellow Warblers ( Dendroica petechia ) reached 48.0 birds/ha, of Wilson's Warblers ( Wilsonia pusilla ) 33.7 birds/ha, and of Yellow-rumped Warblers ( D. coronata ) 30.1 birds/ha. Riparian vegetation is limited in extent in the vicinity of our study sites, covering less than 1% of the landscape. We conclude that all riparian patches in southeastern Arizona are important as stopover sites to en route migrants regardless of their size and degree of isolation or connectivity. In light of potential habitat limitation, the protection of both small, disjunct riparian patches and extensive riverine tracts in western landscapes is imperative. Uso Comparativo de Corredores Riparios y Oasis por Aves Migratorias en el Sureste de ArizonaResumen: Se evaluó la importancia relativa de los corredores riparios de sauces y los oasis aislados para las aves que migran a través del sureste de Arizona durante cuatro migraciones de primavera, de 1989 a 1994, en base a patrones de riqueza de especies, abundancia relativa, densidades y condición corporal de las aves. Estudiamos aves en 13 sitios variando en tamaño y conectividad desde parches pequeños aislados hasta bosques riparios extensos. Muestreamos la vegetación e insectos y capturamos aves con redes. Las bandas continuas de vegetación rip...

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“…Browse for deer and elk. Between 19 and 32 species of breeding birds occurred in upland forests of east-central Taos County, New Mexico (Stahlecker et al 1989).…”

Section: Cercocarpus Montanusmentioning

confidence: 99%

Fire Effects on Plants of the Jemez Mountains and the Pajarito Plateau

Foxx

Hansen

2013

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Life Form Locations of regenerative tissues Potential damage to tissues by fire Annual plants Reproduce from seed in soilbank or on dead plants, dispersion via gravity, wind, water, hitchhiking. Depends on the location of the seeds and exposure to heat. May disappear in a few years when conditions change. Perennial plants Bulbs, corms, tubers Living tissue is below the soil surface. Protected from fire because of soil insulation; fire may stimulate sprouting. Rhizomatous roots Living tissue is below or just above the soil surface.

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Breeding Bird Assemblages in the Rio Grande Wild and Scenic River Recreation Area, New Mexico

Cited by 5 publications

References 9 publications

Grassland birds associated with agricultural riparian practices in southwestern Wisconsin

Grassland birds associated with agricultural riparian practices in southwestern Wisconsin

Comparative Use of Riparian Corridors and Oases by Migrating Birds in Southeast Arizona

Fire Effects on Plants of the Jemez Mountains and the Pajarito Plateau

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