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Development of a conservation education and interpretation guidebook for the Thorne Bay and Craig Ranger Districts, Tongass National Forest /Atkinson, Nelli R. January 2005 (has links) (PDF)
Thesis (M.S.)--University of Wisconsin--Stevens Point, 2005. / Includes bibliographical references (p. 159-162).
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Co-habitateEvans, Meaghan Terese. January 2009 (has links) (PDF)
Thesis (M Arch)--Montana State University--Bozeman, 2009. / Typescript. Chairperson, Graduate Committee: Mike Everts. Includes bibliographical references (leaves 87-90).
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Mass erosion occurrence and debris torrent impacts on some streams in the Willamette National Forest /Chesney, Charles J. January 1982 (has links)
Thesis (M.S.)--Oregon State University, 1983. / Typescript (photocopy). Includes bibliographical references (leaves 91-104). Also available on the World Wide Web.
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Living in the low country modeling archaeological site location in the Francis Marion National Forest, South Carolina /O'Donoughue, Jason M. January 2008 (has links) (PDF)
Thesis (M.A.)--University of Tennessee, Knoxville, 2008. / Title from title page screen (viewed on Sept. 15, 2009). Thesis advisor: David G. Anderson. Vita. Includes bibliographical references.
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Relationships between forest-floor invertebrate distribution, movement, and microclimate under alternative riparian management practicesRykken, Jessica J. 09 June 2004 (has links)
Graduation date: 2005
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Characterization of stream fish assemblages and land use associations within a southern Ohio National ForestLaRue, Michelle L. 24 July 2001 (has links)
Seasonally, in 1998 and 1999, I examined spatial and temporal variation in
fish assemblages of agricultural, forested, and acid mine drainage tributaries within
the Wayne National Forest (WNF) in southern Ohio. Land use and natural
disturbance explained patterns in stream fish assemblages. Creek chub and green
sunfish were present in all land use types. Generally, with the exception of creek
chub and green sunfish, species most abundant in one land use type occurred
infrequently in the other land use types sampled. For example, redbelly dace and
blacknose dace dominated forested assemblages but rarely occurred in mining or
agricultural assemblages.
Agricultural sites consisted of higher order streams, located at lower
elevations with reduced canopy cover. Forested sites included intermittent streams
associated with higher elevation, low stream order, and high canopy cover. Acidic
conditions characterized mining sites, which otherwise remained physically similar
to forested sites. Stream order, elevation, and canopy cover explained the majority
of the variance in assemblage structure within 1998, and pH was also important. In
1999, water quality, specifically dissolved oxygen, and seasonal variation became
important. Assemblages changed following drought in 1999. Forested assemblages
remained most similar following drought, while agricultural assemblages exhibited
less similarity (i.e., greater variability). These results suggest that large-scale reach
characteristics and chemical signals related to land use are important to fish
assemblage structure, but in times of environmental fluctuation, water chemistry of
other site-specific variables may be of even greater importance due to physiological
tolerances and limitations of fishes. / Graduation date: 2002
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Breeding bird community composition in relation to riparian vegetation structure in grazed habitatsSanders, Todd Alan 12 May 1995 (has links)
Riparian zones provide habitat for breeding birds in the semiarid western United
States; however, there are few data available that address the effects of livestock grazing
strategies on riparian habitats and avian communities. Documenting avian community
composition in different riparian vegetation communities and relating vegetation
communities to livestock grazing strategies may identify management alternatives that
are sustainable from a wildlife habitat perspective, and may permit constructive coalitions
between agricultural industry and environmental groups. I compared diurnal breeding
bird abundance, individual species abundance, and species richness, and vegetation
composition and structure among 12 streamside riparian areas of Bear and Silvies valleys
in eastern Oregon during 1993 and 1994. Bird and vegetation data were collected along
four replicate transects within each of three riparian vegetation communities
characterized by vegetation structure: herbaceous, discontinuous willow (Salix spp.), and
continuous willow. These riparian vegetation communities were grazed under summer
season-long, summer short-duration, and fall short-duration livestock grazing strategies,
respectively, >5 years before the study.
Differences in riparian vegetation among communities were primarily related to
shrub structure by experimental design. The continuous willow community had more
shrub cover overall (P<0.001) and within each 1-m height interval from 0-4 m
(P<0.013) than the herbaceous and discontinuous willow communities. The herbaceous
community had no shrub cover >1 m in height. Willows extended farther (P=0.031)
from the steam edge in the continuous willow community than in the discontinuous
willow community. No willows were detected in the herbaceous community.
I detected 4,016 birds representing 56 species along the transects. Total bird
abundance was greater (P<0.001) in the continuous willow community than in the
herbaceous and discontinuous willow communities. Species richness was inconsistent
(P=0.034) between years within communities; it was greatest (P<0.037) in the
continuous and discontinuous willow communities in 1993, and greatest (P<0.003) in
the continuous willow community in 1994. Total bird abundance and species richness in
1994 increased with willow volume (r��>0.707, P<0.001). Of 23 bird species with >20
individual detections over both years, 13 species were most abundant in one or two
vegetation communities (P<0.088). Seven species (yellow warbler [Dendroica
petechia], song sparrow [Melospiza melodia], willow flycatcher [Empidonax traillii],
American robin [Turdus migratorius], common snipe [Gallinago gallinago], bobolink
[Dolichonyx oryzivorus], and Vaux's swift [Chaetura vauxi]) were most abundant in the
continuous willow community. Three species (savannah sparrow [Passerculus
sandwichensis], black tern [Chlidonias niger], and American wigeon [Anas americana])
were most abundant in the herbaceous community. Willets (Catoptrophorus
semipalmatus) were most abundant in the herbaceous and discontinuous willow
communities whereas cinnamon teal (A. cyanoptera) were most abundant in the
herbaceous and continuous willow communities. Red-winged blackbirds (Ageliaus
phoeniceus) were inconsistent (P=0.032) between years within communities: they were
most abundant in the continuous willow community in 1993, and most abundant in the
continuous willow and herbaceous communities in 1994.
Hydrophytic woody vegetation within semiarid rangeland environments increases
structural complexity and is associated with avian abundance and diversity. Yellow
warblers, willow flycatchers, and song sparrows, which depend on hydrophytic shrubs for
nesting almost exclusively in the semiarid West, are especially threatened by the
elimination or simplification of woody riparian vegetation. I suggest that riparian
vegetation structure and composition, which is associated with avian abundance, species
richness, riparian associate bird species, and landscape-level biological diversity, be
maintained where possible. Seasonal light (<30% use) fall short-duration grazing seemed
to be compatible with the maintenance of woody riparian vegetation whereas summer
season-long and summer short-duration grazing is likely incompatible. / Graduation date: 1995
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Ecology of mallard ducklings on Lower Klamath National Wildlife Refuge, CaliforniaMauser, David M. 09 December 1991 (has links)
The ecology of female mallards (Anas platyrhynchos) and their
broods was studied during 1988-90 on Lower Klamath National Wildlife
Refuge, California. Survival of 127 radio-marked ducklings from 64
broods was 0.18 to 10 days of life, and 0.37 and 0.34 to fledging for
1988, 1989, and 1990, respectively. For the 3 years of the study,
49.2% of hens lost their entire brood; 81.2, 36.8, and 37.5% in 1988,
1989, and 1990, respectively. Ninety-three percent of mortality
occurred on or before 10 days of life. No significant differences were
detected in the proportion of radio-marked ducklings lost from early
hatched or late hatched nests. A variety of predators consumed radio-marked
ducklings; however, 49% of the cases of mortality were a result
of an unknown predator. During 1989 and 1990, 3 radio-marked ducklings
from 16 hens which appeared to lose their entire brood were fledged by
other brood hens, and of 29 radio-marked ducklings that reached 44 days
of life, 6 (20.7%) had joined other broods.
Movements, home range, and habitat use were determined for 27
radio-marked broods. Relocation movements (>1000 m in 24 hrs) occurred
in 12 of the 27 broods, primarily in the first week and after the
fourth week of life. In 1989, significantly fewer radio-marked
ducklings from broods hatching in permanent marshes survived to fledge
compared to those originating in seasonal wetlands. Mean size of home
ranges was 1.27 ± 0.47 km² and 0.62 ± 0.21 km² in 1989 and 1990,
respectively. Most habitat selection by brood rearing hens occurred at
the second order, (selection of home range area). Hens selected
seasonally flooded wetlands with a cover component and avoided open or
permanently flooded habitats.
Estimated recruitment (females fledged/adult female in the spring
population), proportional change in population size, and number of
fledged young varied markedly during the 3 years of the study.
Estimated recruitment was 0.31, 1.26, and 0.83 for 1988, 1989, and
1990, respectively. The estimated proportional change in population
size ranged from 0.73 in 1988 to 1.29 and 1.04 during 1989 and 1990,
respectively. Number of fledged young ranged from 915 in 1988 to 6,102
in 1989. Movements, habitat use, and survival of postbreeding radio-marked
mallard hens were also determined. From mid-April to early
August, 5,279 exposure days without the loss of a radio-marked hen were
tallied. Of the 4 hens which emigrated from the study area, all were
unsuccessful in rearing a brood. Unsuccessful hens moved to surveyed
areas north of the study area significantly sooner than successful
hens. Canals were the primary habitat utilized by postbreeding hens in
1988 while mixed seasonal and emergent permanent marsh were the most
frequently used habitats in 1989 and 1990. Open seasonal and mixed
seasonal marshes were the most frequently utilized habitats by
incubating hens. Radio-marked hens moved a mean distance of 1,350 m
from the nest to suspected feeding areas. / Graduation date: 1992
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Paradigm lost : re-evaluating prehistoric rockshelter utilization within the Hoosier National Forest region / Re-evaluating prehistoric rockshelter utilization within the Hoosier National Forest regionWaters, Nikki A. January 2002 (has links)
There is no abstract available for this thesis. / Department of Anthropology
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A HABITAT ANALYSIS OF SPRING-SUMMER ELK RANGE ON THE APACHE-SITGREAVES NATIONAL FOREST, ARIZONA.DelGiudice, Glenn D. (Glenn David) January 1982 (has links)
No description available.
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