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 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 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.

scholarly journals Hypogeous Fungi Occurrence, Distribution and Mycorrhizal Hosts in Grand Teton National Park and John D. Rockefeller, Jr. Memorial Parkway

1990 ◽  
Vol 14 ◽  
pp. 13-14
Author(s):  
Steven Miller
Keyword(s):  
Populus Tremuloides ◽  
National Park ◽  
Pinus Contorta ◽  
Quaking Aspen ◽  
Abies Lasiocarpa ◽  
Hypogeous Fungi ◽  
Grand Teton National Park ◽  
Subalpine Fir ◽  
Field Season ◽  
Speckled Alder

The 1990 field season constituted the last of a three year study to survey the hypogeous fungi of Grand Teton National Park and the Greater Yellowstone ecosystem. The objectives were to: 1. collect and identify hypogeous fungi found in association with ectomycorrhizal tree hosts such as lodgepole pine (Pinus contorta), subalpine fir (Abies lasiocarpa), Douglas-frr (Pseudotsuga menziesii), quaking aspen (Populus tremuloides), and speckled alder (Alnus tenuifolia), and several species of willow (Salix sp.) throughout the area; and 2. to gain an initial understanding of the importance of these fungi as food for small mammals.

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

1983 ◽  
Vol 7 ◽  
pp. 45-50
Author(s):  
Kenneth Diem
Keyword(s):  
Populus Tremuloides ◽  
National Park ◽  
Pinus Contorta ◽  
Picea Engelmannii ◽  
Quaking Aspen ◽  
Balsam Poplar ◽  
Bird Populations ◽  
Populus Angustifolia ◽  
Baseline Information ◽  
Scattered Trees

This study was initiated in 1980 to collect baseline information on the composition, density, distribution and habitat of the avifauna of the Narrowleaf Cottonwood, (Populus angustifolia) and Balsam Poplar, (Populus tacamabacca) community on a portion of the western floodplain of Pilgrim Creek. This cottonwood community has scattered trees of quaking aspen, (Populus tremuloides), engelman spruce, (Picea engelmannii) and lodgepole pine, (Pinus contorta). In restricted moister areas, several patches of alder, (Alnus incana) occur under the larger trees and a few patches of willow, (Salix sp.) are located in the wetter openings of that woodland.

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: 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 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

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, Morphology, Survival, and Genetics of Aspen (Populus Tremuloides) Seedlings Following the 1988 Yellowstone Fires

1996 ◽  
Vol 20 ◽  
pp. 118-122
Author(s):  
Monica Turner ◽  
Rebecca Reed ◽  
William Romme ◽  
Gerald Tuskan
Keyword(s):  
Populus Tremuloides ◽  
Yellowstone National Park ◽  
National Park ◽  
Plant Competition ◽  
Mineral Soil ◽  
Rare Event ◽  
Weather Conditions ◽  
Elevational Gradient ◽  
Quaking Aspen ◽  
Burned Areas

An unexpected consequence of the 1988 Yellowstone fires was the widespread establishment of seedlings of quaking aspen (Populus tremuloides) in the burned forests, including areas outside the previous range of aspen (Kay 1993; Romme et al. 1997). Although aspen is the most widely distributed tree species in North America (Powells 1965), it is relatively uncommon and localized in distribution within Yellowstone National Park (Despain 1991). Most aspen stands in Yellowstone are found in the lower elevation landscapes in the northern portion of the park, and the species was absent - prior to 1988 -- across most of the high plateaus that dominate the southern and central park area. Aspen in the Rocky Mountain region reproduces primarily by means of vegetative root sprouting. Although viable seeds are regularly produced, establishment of seedlings in the wild is apparently a rare event due to the limited tolerance of aspen seedlings for desiccation or competition (e.g., Pearson 1914; McDonough 1985). In the immediate aftermath of the 1988 Yellowstone fires, there was a brief "window of opportunity" for aspen seedling establishment, as a result of abundant aspen seed production, moist weather conditions in spring and summer, and bare mineral soil and reduced plant competition within extensive burned areas (Jelinski and Cheliak 1992; Romme et al. 1997). We initiated this 3-year study in 1996 to address four questions about the aspen seedlings now growing in burned areas across the Yellowstone Plateau: (1) What are the broad-scale patterns of distribution and abundance of aspen seedlings across the subalpine plateaus of Yellowstone National Park? (2) What is the morphology and population structure -- e.g., proportions of genets (genetic individuals that developed from a single seed) and ramets (vegetative root sprouts produced by a genet) of various ages - in aspen seedling populations? (3) What are the mechanisms leading to eventual persistence or extirpation of seedling populations along an elevational gradient, particularly with respect to ungulate browsing and plant competition? (4) What is the genetic diversity and relatedness of the seedling populations along gradients of elevation and substrate?

Long-term aspen dynamics, trophic cascades, and climate in northern Yellowstone National Park

2016 ◽  
Vol 46 (4) ◽  
pp. 548-556 ◽  
Author(s):  
Robert L. Beschta ◽  
Luke E. Painter ◽  
Taal Levi ◽  
William J. Ripple
Keyword(s):  
Populus Tremuloides ◽  
Cervus Elaphus ◽  
Yellowstone National Park ◽  
National Park ◽  
Average Density ◽  
Drought Severity ◽  
Quaking Aspen ◽  
Climatic Trend ◽  
Predator Prey

We report long-term patterns of quaking aspen (Populus tremuloides Michx.) recruitment for five ungulate exclosures in the northern ungulate winter range of Yellowstone National Park. Aspen recruitment was low (<3 aspen·ha−1·year−1) in the mid-1900s prior to exclosure construction due to herbivory by Rocky Mountain elk (Cervus elaphus Linnaeus, 1758) but increased more than 60-fold within 25 years after exclosure construction despite a drying climatic trend since 1940. Results support the hypothesis that long-term aspen decline in Yellowstone’s northern range during the latter half of the 20th century was caused by high levels of ungulate herbivory and not a drying climate. Gray wolves (Canis lupus Linnaeus, 1758) were reintroduced during 1995–1996. For the period 1995–2012, we summarized annual predator–prey ratios, ungulate biomass, and drought severity. The average density of young aspen increased from 4350 aspen·ha−1 in 1997–1998 to 8960 aspen·ha−1 in 2012; during the same time period, those >1 m in height increased over 30-fold (from 105 to 3194 aspen·ha−1). Increased heights of young aspen occurred primarily from 2007 to 2012, a period with relatively high predator–prey ratios, declining elk numbers, and decreasing browsing rates. Consistent with a re-established trophic cascade, aspen stands in Yellowstone’s northern range have increasingly begun to recover.

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