Effects of Military Training and Fire in the Snake River Birds of Prey National Conservation Area
Entry ID:
usgsbrdfresc0003
|
[
Update this Record
]
|
Updating this record requires registration.
|
Summary
Abstract:
The unique characteristics of the Snake River Canyon and the adjoining upland desert south of Boise, Idaho, have been recognized since the 1940s (Olendorff and Kochert 1977). An area associated with a 130-km stretch of canyon supports one of the highest densities of non-colonial nesting raptors in the world (U.S. Dep. Inter. 1979, Olendorff et al, 1989). This area also contains exceptionally high ... raptor biodiversity: 15 species of birds of prey nest in the canyon or surrounding upland areas, and another 10 species use the area during migration or winter. Because of these natural values and the perceived importance of this region to the conservation of populations of raptors, in 1971 the Secretary of the Interior designated approximately 10,800 ha of public land along a portion of this stretch of the Snake River as the Snake River Birds of Prey Natural Area. This Natural Area only encompassed approximately half of the unique assemblage of raptors and protected little of their foraging habitat (U.S. Dep. Inter. 1979). During the 1970s, research sponsored of the U.S. Bureau of Land Management (BLM) identified for many species the importance of foraging habitat on the benchlands north of the canyon (U.S. Dep. Inter. 1979). On the basis of this research, the Secretary designated 195,325 ha of public land as the Snake River Birds of Prey Area under Public Land Order 5777 in 1980. On August 4, 1993, Congress enacted Public Law 103-64 providing permanent protection to the area, now known as the Snake River Birds of Prey National Conservation Area (NCA). This 196,225-ha area, now slightly larger following adjustments, was established "to provide for the conservation, protection, and enhancement of raptor populations and habitats and the natural and environmental resources and values associated therewith, and of the scientific, cultural, and educational resources and values of the public lands in the conservation area". When the NCA was established, the public land orders that established the 1971 Natural Area and the 1980 administrative withdrawal area were both revoked. Responsibility for managing the NCA rests with the BLM. Studies of the abundance, home range sizes, food habits, nesting distribution, and reproduction of raptors in the NCA have been conducted periodically for more than 25 years. In the mid-1960s, Hickman (1968) surveyed southeastern Oregon and southwestern Idaho, including the present NCA, for nesting golden eagles (Aquila chrysaetos). In the late 1960s and early 1970s, University of Idaho students studied golden eagles and prairie falcons (Falco mexicanus) in the present NCA (Beecham 1970), KIochert 1972, Ogden 1973). In 1972, BLM initiated a raptor research project that, in 1975, became an integrated team project to investigate the ecology of raptors and their prey. The findings of this effort (U.S. Dep. Inter 1979) were the basis for protecting the area and helped to define its boundaries. During the 1980s, BLM research biologists worked cooperatively with industry biologists to evaluate the effects of electric power transmission lines and dam construction on raptors in the NCA. Interest in raptor ecology, research, and monitoring within the NCA has increased with the establishment of Boise State University's Raptor Research center, the Peregrine Fund's World Center for Birds of Prey in Boise, and the Raptor Research and Technical Assistance Center. Geographic Description: An area associated with a 130-km stretch of the Snake River Canyon and the adjoining upland desert south of Boise, Idaho, supports an exceptionally high density and diversity of nesting raptors, as well as a diverse assemblage of wintering and migrant raptors. Most investigations occurred within or near the National Conservation Area boundaries, particularly within the 198.616 ha Integration Study Area (ISA). The ISA was selected to include relatively homogenous areas both east and west of the OTA and to extend far enough to encompass foraging ranges of prairie falcons nesting in the Snake River Canyon. The ISA included the OTA and surrounding public and private lands east of the Canyon/Ada County line (the R 1 W - R 2 W range line) west of Mountain Home and Idaho State Highway 51 (the R 5 E - R 6 E range line), south of the 1977 Birds of Prey Study Area boundary (U.S. Dep. Inter. 1979), and north fo the cliff areas on the south side of the river. 1.5.2 Bounding Rectangle Coordinates Methodology: To investigate relationships among three trophic levels (soils/vegetation ["habitat" in the broad sense"], prey, and raptors), and to examine potential influences affecting those relationships, studies focused on spatial and temporal variation in habitat use by foraging raptors, and on habitat characteristics associated with principal prey species. Two simultaneous approaches were used: (1) manipulative experiments to test specific hypotheses about the effects of tracked vehicles; and (2) extensive sampling to relate indexes of habitat quality (e.g., vegetation composition, prey abundance, and raptor foraging and reproductive success) to military activity, livestock grazing and wildlfire.
Purpose:
The overall goal of the BLM/IDARNG Research Project was to obtain information critical for preserving and managing raptors, their prey, and habitat in the NCA. Specifically, research results would be used to: 1) provide information for an analysis of the effects of military training in the NCA that will meet National Environmental Policy Act (NEPA) requirements; 2) contribute information about ... the effects of wildfires and grazing in the NCA for future planning and decision making; 3) furnish information to revise and improve the NCA Management Plan; and 4) provide the basis for continued long-term monitoring of the raptors, their prey, and habitats in the NCA. The research project was designed to accomplish the following objectives: 1) to test the hypothesis that military training activities have no effect on raptors, their prey, or habitats; 2) to assess the effects of wildfire on raptors and the ability of the postburn vegetation community to support prey populations; and 3) to collect baseline data that will eventually allow evaluation of techniques for restoring and protecting native plant communties as well as assessment of the relationships between livestock grazing and prey abundance.
Related URL
|
Description:
National Biological Information Infrastructure Metadata Clearinghouse Link to this site to view additional data set documentation.
|
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
| |
N: 43.0
|
|
S: 43.0
|
|
E: -116.0
|
|
W: -116.0
|
Temporal Coverage
Start Date:
1997-01-18
Stop Date:
1997-01-20
Quality
The data is reported in the publication. All data is held by the investigator. Please contact Professor Allan Green for more information. Any plant collections (~30,000 mosses, liverwort and lichens collected by Professor Rod Seppelt from Antarctica and sub-Antarctic Islands) will be housed in the Australian Antarctic Division herbarium. This herbarium is being formerly transferred ... to the Tasmanian Herbarium. As specimens are fully incorporated into the herbarium (ADT) the data is automatically sent to and held in the Antarctic Database at the Australian Antarctic Division Data Centre. The data is currently in two separate databases, one which searchable and the other is in the process of being moved over. For more information or access to samples, please contact: Professor Rod Seppelt Principal Research Scientist Australian Antarctic Division Channel highway Kingston 7050 Tasmania, Australia ph: +61 (03) 6232 3438 fax: +61 (03) 6232 3449 e-mail: rod.seppelt@aad.gov.au 
Data Set Progress
COMPLETE
Personnel
Role:
INVESTIGATOR
Phone:
+64 7 838 4225
Fax:
+64 7 838 4324
Email:
greentga at waikato.ac.nz
Contact Address:
Department of Biological Sciences
University of Waikato
PO Box 3105
City:
Hamilton
Country:
NEW ZEALAND
Role:
INVESTIGATOR
Phone:
+61 3 6232 3438
Fax:
+61 03 6232 3449
Email:
rod.seppelt at aad.gov.au
Contact Address:
Australian Antarctic Division
Channel Highway
City:
Kingston
Province or State:
Tasmania
Postal Code:
7050
Country:
Australia
Role:
DIF AUTHOR
Phone:
+64 3 358 0200
Fax:
+64 3 358 0211
Email:
c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City:
Christchurch
Country:
New Zealand
Role:
DIF AUTHOR
Phone:
+64 3 358 0200
Fax:
+64 3 358 0211
Email:
s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City:
Christchurch
Country:
New Zealand
Publications/References
Seppelt, R.D. Green, T.G.A. Skotnicki, M.L. Notes on the flora, vertebrate fauna and biological significance of Beaufort Island, Ross Sea, Antarctica. Polarforschung 66(1/2): 53-59, 1999. Green, T.G.A. 2001 The state of the Ross Sea region terrestrial environment: Terrestrial biota. Ross Sea Region 2001: A state of the environment report for the Ross Sea region of Antarctica. Waterhouse, E.(ed), Christchurch New Zealand Antarctic Institute 047810961X
Creation and Review Dates
DIF Creation Date:
2009-04-22
Last DIF Revision Date:
2009-06-18
|
[
Update this Record
]
|
Updating this record requires registration.
|
|