scholarly journals Breeding Bird Communities in a Naturally Fragemented Forest Ecosystem in Grand Teton National Park

1998 ◽  
Vol 22 ◽  
pp. 37-37
Author(s):  
Gregory Schrott
Keyword(s):  
Habitat Fragmentation ◽  
National Park ◽  
Bird Species ◽  
Bird Communities ◽  
Western North America ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Bird Populations ◽  
Natural Processes

This project examined the bird species breeding in the morainal forests on the valley floor in Grand Teton National Park. These forests are very patchily distributed and range in size from less than 1 hectare to over 700 hectares, allowing for a unique opportunity to study the responses of the local bird species to a forest system that has been fragmented for centuries through natural processes. This information can be useful for predicting the potential long-term impacts of human-caused forest fragmentation on bird populations in western North America. Until quite recently very little was known of the tolerances of western forest bird species to habitat fragmentation and this project could represent an important step towards understanding their needs in this regard.

scholarly journals Monitoring Breeding Bird Populations in Grand Teton National Park: 1995-1997

1997 ◽  
Vol 21 ◽  
pp. 13-25
Author(s):  
Martin Cody ◽  
Stephen Cain
Keyword(s):  
Breeding Season ◽  
National Park ◽  
Management Strategies ◽  
Bird Species ◽  
Breeding Habitat ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Bird Populations ◽  
The Impact

In summer 1997 our NPS-funded project # CA-1460-5-0010, covering a 3-y period from summer 1995 through summer 1997, was completed. The immediate goals of the project were to instigate a system for monitoring the densities of breeding bird species, by establishment of flxed sites as a basis for a long term monitoring plan and of census protocols that can detect changes of breeding species and their densities over successive years. The monitoring scheme is conducted largely within Grand Teton National Park (GTNP), but covers habitats and an avifauna representative of the Greater Yellowstone Ecosystem (GYE) and the central-northern Rocky Mountains in general. The project emphasizes the need for long­term and on-going studies on breeding bird species and densities and their importance as a tool for evaluating the impact of both local and distant influences on breeding bird populations. For residents, species that remain all year in or near the breeding habitat, local effects include those operating on-site during the non-breeding season as well as during the breeding season. For migrant species, those that breed on-site but leave to spend the non-breeding season in other locations, often distant and usually of quite different habitat composition, there are both on-site influences on breeding population densities, such as inter-year changes in vegetation structure and productivity, and off-site or distant influences, including factors that affect over-wintering success in the non­breeding habitat and others that influence a successful transit between wintering and breeding grounds. The assessment of long-term trends in bird densities may be used as a form of bioassay of the state of the local environments. Information from such studies can provide region-wide indicators that, given a sufficiently comprehensive data base, can segregate local from distant influences on populations. Such indicators can be incorporated into management strategies to aid in determining which local strategies may be necessary (and feasible) to help maintain the biota.

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.

scholarly journals Monitoring Breeding Bird Populations in Grand Teton National Park

1994 ◽  
Vol 18 ◽  
pp. 42-45
Author(s):  
Martin Cody
Keyword(s):  
National Park ◽  
Monitoring Program ◽  
Bird Species ◽  
Migratory Species ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Subalpine Fir ◽  
Bird Populations ◽  
Jackson Hole ◽  
Management And Conservation

The central aim of this project is 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 will provide data on year-to-year fluctuations in breeding bird species and densities, and eventually on any longer-term changes in the local avifauna, of both resident and migratory species; the data base will further understanding of population variability, local shifts in distribution and abundance, and potentially form a source for management and conservation decisions.

scholarly journals Distribution and Body Size Diverstiy of Emberizine Sparrows in Grand Teton National Park

2005 ◽  
Vol 29 ◽  
pp. 17-21
Author(s):  
Martin Cody
Keyword(s):  
Body Size ◽  
Entire Range ◽  
National Park ◽  
Breeding Birds ◽  
Bird Communities ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Monitoring Effort ◽  
Field Workers ◽  
Census Record

Over the last decade or so, we have monitored breeding bird densities over the entire range of habitats within GTNP, from grasslands and sagebrush to scrub, woodland , and forest. Many field workers, including park scientists, have contributed to the monitoring efforts. In all, there are 30 established monitoring sites, and each has been visited on average in two out of three years since 1995. Some sites, however, have been censused yearly, and on some of these the census record extends back for several decades. The monitoring work provides a rather complete assessment of the park's breeding bird communities, i.e. species over habitats among years, and to date some 160 species have been recorded in the monitoring effort, all but a handful of which are breeding birds. This report addresses specifically one prominent group of breeding birds, the emberizine sparrows and buntings.

scholarly journals Monitoring Migratory Bird Populations in Grand Teton National Park, Northern Rocky Mountains

1993 ◽  
Vol 17 ◽  
pp. 55-67
Author(s):  
Martin Cody ◽  
Steven Cain
Keyword(s):  
National Park ◽  
Migratory Bird ◽  
Routine Activity ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Monitoring Scheme ◽  
Bird Populations ◽  
Jackson Hole ◽  
Study Sites ◽  
Land Bird

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) was initiated in summer 1993. It is projected that the monitoring scheme, when fully established and formalized, will become a routine activity in Grand Teton National Park, where a broad range of representative vegetation types is accessible within close geographic proximity. Sixteen study sites were established within the park in pristine habitat, 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 of the study sites have a long history of research on the breeding birds (see below). Census sites are standardized at 5 ha in size, and mapped in detail (topography, vegetation). The locations and accessibility of the study sites permit all to be regularly and repeatedly censused during the short (6-week) breeding season. Census schedules, timing, and methodological protocols are being established and refined, to provide for strictly controlled inter-site and inter-year comparisons in breeding bird populations, species composition, and densities. In view of the projected benefits to science and resource management of this monitoring scheme, the project hopefully will be continued and the data base further expanded in future years, with a larger range of study sites (24-36).

scholarly journals Bird Populations in a Black Cottonwood Community, Grand Teton National Park

1982 ◽  
Vol 6 ◽  
pp. 43-45
Author(s):  
Kenneth Diem
Keyword(s):  
Populus Tremuloides ◽  
National Park ◽  
Pinus Contorta ◽  
Populus Trichocarpa ◽  
Bird Species ◽  
Quaking Aspen ◽  
Black Cottonwood ◽  
Predominantly Black ◽  
Grand Teton National Park ◽  
Bird Populations

Baseline information on the avifauna of the riparian communities in Grand Teton National Park is sparse. Consequently, the objective of this project is to collect information on the composition, density, distribution and habitat of the bird species inhabiting a portion of the black cottonwood, Populus trichocarpa, community in Grand Teton National Park. The study was initiated in June 1980 on a portion of the western floodplain of Pilgrim Creek. The southeast conner of this 300m x 400m (12ha) plot is identified by a metal post. This post can be located on a bearing line of 4° E of N. 77 mm from the fiducial center of the infrared aerial photo N 31 (U.S. Bur. of Reclamation Series B/Rl7, 7-16-79). This floodplain community is predominantly black cotton wood with scattered trees of quaking aspen, Populus tremuloides, engelman spruce, Picea engelmannii and lodgepole pine, Pinus contorta. In restricted moister areas several small patches of alder, Alnus incana occur under the larger trees and a few patches of willow, (Salix, sp.) are located in moist openings of the woodland.

scholarly journals Grand Teton National Park Breeding Bird Monitoring Project

2000 ◽  
Vol 24 ◽  
pp. 23-30
Author(s):  
Martin Cody
Keyword(s):  
National Park ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Bird Populations ◽  
Area 5 ◽  
Bird Monitoring ◽  
Jackson Hole ◽  
Study Sites ◽  
Land Bird ◽  
Independent Work

Overview: GTNP Breeding Bird Monitoring Project. 1. Following initial independent work by M. L. Cody and 3y 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 >30 y; 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.

scholarly journals Bird Populations in a Black Cottonwood Community, Grand Teton National Park

1981 ◽  
Vol 5 ◽  
pp. 54-57
Author(s):  
Kenneth Diem
Keyword(s):  
Populus Tremuloides ◽  
National Park ◽  
Pinus Contorta ◽  
Populus Trichocarpa ◽  
Bird Species ◽  
Quaking Aspen ◽  
Black Cottonwood ◽  
Predominantly Black ◽  
Grand Teton National Park ◽  
Bird Populations

Baseline information on the avifauna of the riparian communities in Grand Teton National Park is sparse. Consequently, the objective of this project is to collect information on the composition, density, distribution and habitat of the bird species inhabiting a portion of the black cottonwood, Populus trichocarpa, community in Grand Teton National Park. The study was initiated in June 1980 on a portion of the western floodplain of Pilgrim Creek. The southeast corner of this 300m x 400m (12ha) plot is identified by a metal post. This post can be located on a bearing line of 4° E of N. 77 mm from the fiducial center of the infrared aerial photo N 31 (U.S. Bur. of Reclamation Series B/R17, 7-16-79). This floodplain community is predominantly black cottonwood with scattered trees of quaking aspen, Populus tremuloides, engelman spruce, Picea engelmannii and lodgepole pine, Pinus contorta. In restricted moister areas several small patches of alder, Alnus incana occur under the larger trees and a few patches of willow, (Salix, sp.) are located in moist openings of the woodland.

scholarly journals Breeding Bird Popluations in Grand Teton National Park: Density and Distribution

1995 ◽  
Vol 19 ◽  
pp. 19-23
Author(s):  
Martin Cody
Keyword(s):  
Data Base ◽  
National Park ◽  
Monitoring Program ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Bird Populations ◽  
Bird Monitoring ◽  
Census Techniques ◽  
Monitoring Protocols ◽  
Changes Over Time

GTNP (Grand Teton National Park) recently initiated a breeding bird monitoring program, with a view toward assessing population densities of breeding birds and their potential changes, both of residents and neotropical migrants; the 1995 season was the first in which the monitoring protocols of the program were fully instigated. The program goals are the monitoring of both species and densities over a broad range of habitats within the park, with a view to detecting changes over time in these variables, in year-to-year "background" variation and in possible long-term trends. Site selection, mapping and marking, and deployment of various bird census techniques, will be completed and refined over three introductory years, 1995-1997. Thence, it is anticipated that the monitoring program will become permanently established, contributing yearly to an expanding data base on the park's breeding bird populations. This data base, it is believed, will become a useful backup and basis for management decisions, and an increasingly sensitive index from which changes in the park's avifauna, natural or anthropogenic, can be calibrated.

scholarly journals Bird Populations in a Narrowleaf Cottonwood Community, Grand Teton National Park, Wyoming

1980 ◽  
Vol 4 ◽  
pp. 40-43
Author(s):  
Kenneth Diem
Keyword(s):  
Populus Tremuloides ◽  
National Park ◽  
Pinus Contorta ◽  
Bird Species ◽  
Quaking Aspen ◽  
Grand Teton National Park ◽  
Bird Populations ◽  
Engelmann Spruce ◽  
Baseline Information ◽  
Scattered Trees

An Avian Atlas for the State of Wyoming is being developed by the Wyoming Game and Fish Department. Baseline information on the avifauna of the riparian communities is especially sparse. Consequently, the objective of this project is to collect information on the composition, density, distribution and habitat of the bird species inhabiting a portion of the narrowleaf cottonwood, Populus angustifolia, community in Grand Teton National Park. The study was initiated in June 1980 on a portion of the western floodplain of Pilgrim Creek. The metal, southeast corner stake of this 300 m x 400m (12 ha) plot is located on a bearing line 4° E of N. 77 mm from the fiducial center of the infrared aerial photo N31 (U.S. Bur. of Reclamation Series B/R17, 7-16-79). This floodplain community is predominantly narrowleaf cottonwood with scattered trees of quaking aspen, Populus tremuloides, engelmann spruce, Picea engelmannii, and lodgepole pine, Pinus contorta. In the moister areas several small patches of alder, Alnus incana occur under the larger trees and a few patches of willow (Salix, sp.) are located in moist openings of the woodland.

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