| METHODS FOR TRAPPING SAGE GROUSE CENTROCERCUS-UROPHASIANUS IN COLORADO USA | GIESEN K M | 1982 |
METHODS FOR TRAPPING SAGE GROUSE CENTROCERCUS-UROPHASIANUS IN COLORADO USAKeywordsNo keywords available AbstractDuring 1963-1980 at least 6231 sage grouse (C. urophasianus) (5147 adults, 1084 juveniles) were captured and banded in Colorado. Most (5752) were banded since 1973. Four trapping methods were evaluated for capture efficiency (spotlighting, drive traps, stationary cannon nets and vehicle-mounted cannon nets) between 1977 and 1980 during which 1955 grouse were captured. Spotlighting resulted in most captures (1326; 67.8%) followed by drive trapping (347; 17.7%), vehicle-mounted cannon nets (221; 11.3%) and stationary cannon nets (61; 3.1%). Spotlighting was least selective for age or sex of birds trapped except when trapping on leks. Drive trapping and both methods of cannon-netting were selective for juveniles. Trapping mortality was < 1.0% for all trapping methods with injuries most common in drive trapping and cannon-netting. AuthorsGIESEN K M; SCHOENBERT T J; BRAUN C E Year Published1982 PublicationWildlife Society Bulletin Locations |
| Movements and Radionuclide Concentrations of Sage Grouse in Southeastern Idaho | CONNELLY, JW | 1983 |
KeywordsNo keywords available AbstractMovements
and
radionuclide
concentrations
of
sage
grouse
(Centrocercus
urophasianus)
sum-
mering
near
nuclear
facilities
on
the
Idaho
National
Engineering
Laboratory
in
southeastern
Idaho
were
studied
from
1977
through
1980.
From
10
July
through
7
September,
95%
of
all
locations
(N
=
131)
of
radio-
marked
grouse
were
within
2
km
of
their
feeding
areas
on
lawns
surrounding
the
facilities.
During
October
and
November,
82%
of
all
radiolocations
(N
=
22)
were
greater
than
2
km
from
these
areas.
The
maximum
1-way
movement
to
winter
range
was
81
km.
Radionuclide
concentrations
(primarily
radiocesium)
were
higher
(P
=
0.05)
in
sage
grouse
summering
near
a
facility
with
liquid
radioactive
waste
storage
than
in
grouse
summering
near
a
solid
radioactive
waste
disposal
area
or
in
control
areas.
The
short
biological
half-
life
of
the
ingested
radionuclides
and
the
timing
of
sage
grouse
movements
from
summering
areas
reduced
any
potential
radiation
dose
to
a
person
consuming
1
of
these
birds AuthorsCONNELLY, JW; MARKHAM, OD Year Published1983 PublicationThe Journal of Wildlife Management LocationsDOI10.2307/3808063 |
| Lek Attendance of Male Sage Grouse | EMMONS, SR | 1984 |
KeywordsNo keywords available AbstractNo abstract available AuthorsEMMONS, SR; BRAUN, CE Year Published1984 PublicationThe Journal of Wildlife Management LocationsDOI10.2307/3801461 |
| Behavior of lekking sage grouse in response to a perched golden eagle. | Ellis, K.L. | 1984 |
Behavior of lekking sage grouse in response to a perched golden eagle.KeywordsNo keywords available AbstractNo abstract available AuthorsEllis, K.L. Year Published1984 PublicationWestern Birds Locations |
| Sexual selection in lekking sage grouse: phenotypic correlates of male mating success | GIBSON, RM | 1985 |
KeywordsNo keywords available AbstractMate choice cues in sage grouse were reinvestigated by analyzing relationships between male mating success and a range of suggested cues. Display cues were implicated by significant relationships between mating status (whether or not a male mated) and lek attendance, display rate (corrected for effects of female proximity and time of day) and an acoustic component related to temporal and frequency measure of a whistle emltted during the strut display. Although display rate and the acoustic component were intercorrelated, both exerted significant partial effects on mating success in mutivariate analyses. These display measures also differed significantly between males. In contrast, mating success was not significantly related to measures of territory characteristics, including size and proximity to the lek center, or to body size. These results resolve discrepancies between previous studies and provide a basis for experimental analysis of the role of female choice in this lek system. AuthorsGIBSON, RM; BRADBURY, JW Year Published1985 PublicationBehavioral Ecology And Sociobiology LocationsDOI10.1007/BF00299040 |
| Sage Grouse Population Trends in Oregon, 1941-1983 | Crawford, J.A. | 1985 |
KeywordsNo keywords available AbstractNo abstract available AuthorsCrawford, J.A.; Lutz, R.S. Year Published1985 PublicationThe Murrelet LocationsDOI10.2307/3535162 |
| SAGE GROUSE FOOD SELECTION IN WINTER, NORTH-PARK, COLORADO | REMINGTON, TE | 1985 |
KeywordsNo keywords available AbstractSelection
of
sagebrush
by
sage
grouse
(Centrocercus
urophasianus)
was
investigated
during
winters
1980-81
and
1981-82
in
North
Park,
Colorado.
Wyoming
big
sagebrush
(Artemisia
tridentata
ssp.
wyomingensis)
composed
90%
of
browsed
plants
but
only
48%
of
plants
at
random
sites.
Mountain
big
sagebrush
(A.
t.
ssp.
vaseyana)
and
alkali
sagebrush
(A.
longiloba)
composed
7
and
3%,
and
12
and
2%
of
browsed
plants
and
plants
at
random
sites,
respectively.
Wyoming
big
sagebrush
leaves
contained
more
crude
protein
and
lower
levels
of
monoterpenes
than
mountain
big
sagebrush.
Plants
browsed
by
grouse
contained
more
protein
than
unbrowsed
or
random
plants.
Plant
vigor
and
crude
protein
levels
discriminated
among
browsed,
unbrowsed,
and
random
Wyoming
big
sagebrush
samples
in
a
discriminant
function
anal-
ysis.
Crude
protein
and
three
oxygenated
monoterpenes
discriminated
between
browsed
and
unbrowsed
mountain
big
sagebrush
samples
in
a
discriminant
function
analysis AuthorsREMINGTON, TE; BRAUN, CE Year Published1985 PublicationJournal of Wildlife Management LocationsDOI10.2307/3801395 |
| Interseasonal Movements and Fidelity to Seasonal Use Areas by Female Sage Grouse | BERRY, JD | 1985 |
KeywordsNo keywords available AbstractNo abstract available AuthorsBERRY, JD; ENG, RL Year Published1985 PublicationThe Journal of Wildlife Management LocationsDOI10.2307/3801877 |
| Wildlife habitats in managed rangelands - the Great Basin of southeastern Oregon. Sage grouse. | Call, M.W. | 1985 |
Wildlife habitats in managed rangelands - the Great Basin of southeastern Oregon. Sage grouse.KeywordsNo keywords available AbstractDecreases in sage grouse followed the decrease in sagebrush. Other factors, such as unfavorable weather conditions at hatching time and increased predation, hunting, and disease have each been important at various times in localized areas but are probably not the most important factors in the overall downward trend. AuthorsCall, M.W.; Maser, C. Year Published1985 PublicationU S Forest Service Locations |
| NATAL DISPERSAL AND LEK FIDELITY OF SAGE GROUSE | DUNN, PO | 1985 |
NATAL DISPERSAL AND LEK FIDELITY OF SAGE GROUSEKeywordsNo keywords available AbstractNatal
dispersal
and
lek
fidelity
(attendance
within
and
between
years)
of
Sage
Grouse
(Centrocercus
urophasianus)
were
studied
on
Cold
Spring
Mountain,
northwestern
Col-
orado,
from
July
1981
through
May
1984.
Female
Sage
Grouse
followed
the
typical
avian
pattern
of
dispersing
farther
than
males.
However,
there
was
no
difference
between
pro-
portions
of
male
and
female
yearling
grouse
attending
the
lek
closest
to
their
juvenile
banding
location.
Fifteen
percent
of
all
individually
marked
juveniles
(24/157
birds)
were
known
to
have
attended
leks
as
yearlings.
There
was
no
difference
between
yearling
and
adult
lek
attendance
rates
for
either
sex;
however,
females
attended
leks
less
often
than
males.
Yearling
females,
but
not
yearling
males,
visited
2
or
more
leks
more
often
than
adults.
These
differences
may
be
related
to
yearlings'
inexperience
with
breeding
or
to
a
strategy
to
enhance
reproductive
success. AuthorsDUNN, PO; BRAUN, CE Year Published1985 PublicationThe Auk: Ornithological Advances Locations |
