Trends associated with residential development in riparian breeding bird habitat along the Snake River in Jackson Hole, WY, USA: Implications for conservation planning

2006 ◽  
Vol 128 (4) ◽  
pp. 431-446 ◽  
Author(s):  
Courtland M. Smith ◽  
Douglas G. Wachob
Keyword(s):  
Conservation Planning ◽  
Residential Development ◽  
Snake River ◽  
Breeding Bird ◽  
Bird Habitat ◽  
Jackson Hole

scholarly journals The Effects of Human Residential Development on Avian Communities Along the Snake River Riparian Corridor in Jackson Hole, WY

2002 ◽  
Vol 26 ◽  
pp. 60-68
Author(s):  
Courtland Smith
Keyword(s):  
Human Development ◽  
Statistical Tests ◽  
Spatial Scales ◽  
Principal Component ◽  
Negative Influence ◽  
Residential Development ◽  
Snake River ◽  
Neotropical Migrant ◽  
Jackson Hole ◽  
Riparian Corridor

Throughout North America, bird declines may be attributable to loss of habitat on the breeding grounds. Human land uses, especially residential development pressures within western ecosystems, are greatly impacting riparian landscapes and biota, particularly breeding birds. While most studies have focused on eastern birds, it is unclear how western bird assemblages respond to development and its concomitant effects on habitat alteration and fragmentation. I sampled bird community parameters and habitat variables at three spatial scales (microhabitat, macrohabitat, and landscape) along a human development gradient along the Snake River riparian corridor in Jackson Hole, WY. Fifty-six cottonwood forest patches were surveyed during the 2001-02 breeding season. Principal component analysis, canonical correspondence analysis, and multiple linear regression statistical tests were used to determine the effects of housing densities on avian assemblages, guilds, and habitat features. Overall species richness and diversity declined with increasing human development. Neotropical migrant species were most negatively impacted and consistently declined in proportional representation on forested plots as human development densities increased. Short-distance migrants, food generalists, ground gleaners, and avian nest predators all increased with increasing human development. Brood parasites, on the other hand, did not increase with increasing fragmentation and their distribution may reflect the availability of nest host species. Of the environmental variables measured, landscape features were most affected and metrics consistent with habitat fragmentation were most correlated with human development. These results suggest that residential development within riparian habitats may be exerting a strong negative influence on western bird communities and at high densities may lead to a depauperate avian biota and reproductive sinks.

scholarly journals The Effects of Human Residential Development on Avian Communities Along the Snake River Riparian Corridor in Jackson Hole WY USA

2001 ◽  
Vol 25 ◽  
pp. 94-103
Author(s):  
Courtland Smith
Keyword(s):  
Human Development ◽  
Statistical Tests ◽  
Spatial Scales ◽  
Principal Component ◽  
Negative Influence ◽  
Residential Development ◽  
Snake River ◽  
Neotropical Migrant ◽  
Jackson Hole ◽  
Riparian Corridor

Throughout North America, bird declines may be attributable to loss of habitat on the breeding grounds. Human land uses, especially residential development pressures within western ecosystems, are greatly impacting riparian landscapes and biota, particularly breeding birds. While most studies have focused on eastern birds, it is unclear how western bird assemblages respond to development and its concomitant effects on habitat alteration and fragmentation. I sampled bird community parameters and habitat variables at three spatial scales (microhabitat, macrohabitat, and landscape) along a human development gradient along the Snake River riparian corridor in Jackson Hole, WY, USA. Fifty­ six cottonwood forest patches were surveyed during the 2001-02 breeding season. Principal component analysis, canonical correspondence analysis, and multiple linear regression statistical tests were used to determine the effects of housing densities on avian assemblages, guilds, and habitat features. Overall species richness and diversity declined with increasing human development. Neotropical migrant species were most negatively impacted and consistently declined in proportional representation on forested plots as human development densities increased. Short-distance migrants, food generalists, ground gleaners, and avian nest predators all increased with increasing human development. Brood parasites, on the other hand, did not increase with increasing fragmentation and their distribution may reflect the availability of nest host species. Of the environmental variables measured, landscape features were most affected and metrics consistent with habitat fragmentation were most correlated with human development. These results suggest that residential development within riparian habitats may be exerting a strong negative influence on western bird communities and at high densities may lead to a depauperate avian biota and reproductive sinks.

scholarly journals Effects of Domestic Livestock and Native Wildlife Grazing in Grand Teton National Park

1993 ◽  
Vol 17 ◽  
pp. 91-95
Author(s):  
Michael Smith ◽  
Jerrold Dodd ◽  
Paul Meiman
Keyword(s):  
Plant Community ◽  
National Park ◽  
Mule Deer ◽  
Snake River ◽  
Grand Teton National Park ◽  
Jackson Hole ◽  
Domestic Livestock ◽  
Wildlife Populations

The Snake River plains and foothill areas of Jackson Hole have been grazed by domestic livestock since settlement of the area. Wildlife populations, including elk, mule deer, and antelope have historically used and continue to use the area. Moose are currently relatively abundant and a small herd of bison have been introduced. Currently, livestock use part of the area contained in Grand Teton National Park either as a concession or due to authorization by Park enabling legislation. Park managers need information concerning the effects of grazing by large ungulates on vegetation resources to assist in effectively managing grazing to service forage needs and achieve desired plant community goals.

scholarly journals Riparian Plant Community Structure in Managed Hydrological Regime

2008 ◽  
Vol 31 ◽  
pp. 115-116
Author(s):  
Sabine Mellman-Brown ◽  
Dave Roberts ◽  
Bruce Pugesek
Keyword(s):  
National Park ◽  
Hydrological Regime ◽  
Snake River ◽  
Bureau Of Reclamation ◽  
Spring Runoff ◽  
Extreme Flood ◽  
Jackson Hole ◽  
Inundation Duration ◽  
High Flows ◽  
National Park System

The hydrology of the Snake River in Grand Teton National Park is partly determined by releases from Jackson Lake Dam. The dam was first built in 1908 and became part of the National Park system GTNP was expanded to include most of Jackson Hole. Completion of the present structure of Jackson Lake Dam occurred in 191 7 and resulted in an increase above the natural level of Jackson Lake of 11.9 m. The Bureau of Reclamation (BOR) manages the dam and sets discharge schedules, primarily to meet agricultural needs, and to a lesser extent the needs of recreational river use. Major changes to the hydrological regime of the Snake River include lower than natural peak releases, decrease in frequency of extreme flood events, and unusually high flows from July to September. In addition, peak releases prior to 1957 were not synchronized with spring runoff but shifted to July or early August. Changes in inundation frequencies of floodplains, inundation duration and timing of peak flows have profound effects on the extent and composition of the riparian zone.

scholarly journals Effects of Domestic Livestock and Native Wildlife Grazing in Grand Teton National Park

1991 ◽  
Vol 15 ◽  
pp. 165-168
Author(s):  
Michael Smith ◽  
Jerrold Dodd ◽  
Uyapo Omphile ◽  
Paul Meiman
Keyword(s):  
Plant Community ◽  
National Park ◽  
Mule Deer ◽  
Snake River ◽  
Grand Teton National Park ◽  
Jackson Hole ◽  
Domestic Livestock ◽  
Wildlife Populations

The Snake River plains and foothill areas of Jackson Hole have been grazed by domestic livestock since settlement of the area. Wildlife populations, including elk, mule deer, and antelope have historically used and continue to use the area. Moose are currently relatively abundant and a small herd of bison have been introduced. Currently, livestock continue to use part of the area contained in Grand Teton National Park either as a concession or due to authorization by Park enabling legislation. Park managers need information concerning the effects of grazing by large ungulates on vegetation resources to assist in effectively managing grazing to achieve desired plant community goals.

scholarly journals Monitoring Breeding Bird Populations in Grand Teton National Park

1996 ◽  
Vol 20 ◽  
pp. 35-38
Author(s):  
Martin Cody
Keyword(s):  
National Park ◽  
Information Source ◽  
Monitoring Program ◽  
Bird Species ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Subalpine Fir ◽  
Bird Populations ◽  
Breeding Populations ◽  
Jackson Hole

This report covers year 2 of a three year project, 1995-1997 inclusive, to instigate a permanent program of monitoring landbird species composition and densities in a variety of representative habitats within Grand Teton National Park (GTNP). Habitats range from grassland and sagebrush on the valley floor of Jackson Hole (around 1900 m) through a range of scrub, woodland, and tall foothill forest vegetation types to montane sites of subalpine fir and tundra (ca. 3000 m). The monitoring program is intended to provide data on year-to-year fluctuations in breeding bird species and densities, and document longer-term changes (if any) in the local avifauna of resident and migratory species. The data base will document variability in size of breeding populations among years, local shifts in distribution and abundance over habitat types, and potentially form an information source on which management and conservation decisions might be based.

Effects of Habitat Disturbance from Residential Development on Breeding Bird Communities in Riparian Corridors

2006 ◽  
Vol 38 (3) ◽  
pp. 504-521 ◽  
Author(s):  
Suzanne M. Lussier ◽  
Richard W. Enser ◽  
Sara N. Dasilva ◽  
Michael Charpentier
Keyword(s):  
Habitat Disturbance ◽  
Residential Development ◽  
Bird Communities ◽  
Breeding Bird ◽  
Riparian Corridors

scholarly journals GTNP Breeding Bird Monitoring Project 2001 Season

2001 ◽  
Vol 25 ◽  
pp. 31-43
Author(s):  
M. Cody
Keyword(s):  
Breeding Bird ◽  
Bird Populations ◽  
Topographic Features ◽  
Area 5 ◽  
Bird Monitoring ◽  
Jackson Hole ◽  
History Of ◽  
Study Sites ◽  
Land Bird ◽  
Independent Work

Overview: GTNP Breeding Bird Monitoring Project: 1. Following initial independent work by M. L. Cody and by funding from NPS, we instigated a scheme for long-term monitoring of breeding land bird populations in a wide variety of habitats representative of the northern Rockies and the Greater Yellowstone Ecosystem (GYE). Census sites are located almost entirely within Grand Teton National Park, where a broad range of representative vegetation types is accessible within close geographic proximity. 2. 30 monitoring sites are established within and adjacent to the park in pristine habitat. Sites range from the Jackson Hole lowlands to subalpine and alpine sites, from meadow, sagebrush and marshland, through willow scrub, cottonwood and aspen woodlands, to lodgepole pine and spruce-fir forests. Some sites have a monitoring history of >30y; others were established in the mid-1990's. 3. The location and accessibility of the study sites permits all to be regularly and repeatedly censused during the short (6-week) breeding season. Census sites are standardized in area ( 5- 10 ha in size) and mapped in detail (topographic features, vegetation). Census schedules, timing, and methodological protocols are established, and allow for controlled inter-site and inter-year comparisons in breeding bird populations, species composition, and densities.

Sign in / Sign up

Export Citation Format

Share Document