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Small mammal populations of the principal agricultural crops in north-central Kansas
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Small mammal populations of the principal agricultural crops in north-central Kansas
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Description
Author
Welker
,
Thomas
L
.
Title
Small
mammal
populations
of the
principal
agricultural
crops
in
north-central
Kansas
Degree Program
Biology
Abstract
Seven
habitats
were
sampled
from
March
through
October
1991
.
Five
study
sites
(alfalfa
,
grain
sorghum
,
winter
wheat
,
corn
, and
soybean)
represented
the
principal
agricultural
crop
types
of
Kansas
. The
remaining
two
study
sites
, a
fencerow
bordered
by
smooth
brome
(Bromus
inermis)
and an
upland
pasture
,
comprised
the
non-cropland
habitats
.
Each
habitat
was
trapped
at
least
once
a
month
;
however
,
sites
in
which
perturbations
occurred
were
sometimes
sampled
more
often
,
depending
upon
the
number
of
disruptions
.
Study
sites
were
compared
on the
basis
of
species
richness
,
species
diversity
,
evenness
, and
similarity
.
Differences
among
seasons
and in the
crop
rotation
and/or
vegetative
condition
at
study
sites
also were
examined
to
ascertain
their
effects
on the
relative
density
and
species
diversity
of
small
mammal
populations
within
and
among
sites
.
Effects
of
agricultural
perturbations
were
tested
to
determine
significance
by
comparing
the
relative
densities
of
select
small
mammal
species
before
and
after
each
disturbance
.
Generally
,
agricultural
perturbations
showed
no
effect
on
small
mammal
abundances
,
although
,
harvest
altered
relative
densities
in a
few
instances
.
Ten
species
of
small
mammals
were
represented
among
the
seven
study
sites
. Of the
ten
,
Peromyscus
maniculatus
(deer
mouse)
was by
far
the
most
abundant
,
dominating
all
habitats
. The
deer
mouse
was a
permanent
resident
at
all
sites
,
except
the
upland
pasture
site
,
which
held
no
resident
rodent
species
.
During
the
study
,
small
mammals
were
most
common
from
late
spring
through
the
end
of
summer
.
P
.
maniculatus
was
most
abundant
during
late
spring
and
early
fall
,
whereas
Onychomys
leucogaster
(northern
grasshopper
mouse)
reached
its
highest
abundance
in
mid-summer
through
early
fall
Chaetodipus
hispidus
(hispid
pocket
mouse)
was
absent
from
all
habitats
until
mid-summer
and
disappeared
in
early
fall
. The
remaining
rodent
species
were not
present
in
high
enough
densities
to
make
generalizations
regarding
trends
in
abundance
.
Habitat
breadth
values
(BH)
calculated
for
each
small
mammal
species
represented
indicated
that
P
.
maniculatus
,
O
.
leucogaster
,
Reithrodontomys
megalotis
(western
harvest
mouse)
, and
possibly
C
.
hispidus
, were
habitat
generalists
. The
winter
wheat
site
exhibited
the
highest
species
diversity
and
species
richness
of
all
the
study
sites
,
whereas
the
upland
pasture
possessed
the
lowest
values
of these
parameters
. The
corn
and
alfalfa
sites
were
most
similar
,
while
the
upland
pasture
versus
the
alfalfa
and
soybean
sites
were
most
dissimilar
.
Date Original
1994
Publisher
Fort Hays State University
Relation
Digital reproduction of the Fort Hays State University Theses Collection.
Type
Text
Format
application/pdf
Identifier
WelkerThomas_1994_web.pdf
Source
LD2652 .T5 B5 W44 1994
Language
eng
Relation-Requires
Adobe Reader is required to view this item. Download at
http://get.adobe.com/reader/.
Rights
Copyright 1994 Thomas L. Welker
Access Requirements
Off campus access to Forsyth Library Resources -
http://www.fhsu.edu/library/electronic/off-campus-access/
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