Researches on Population Ecology
1437-5613
0034-5466
Cơ quản chủ quản: N/A
Phân tích ảnh hưởng
Các bài báo tiêu biểu
The genetics and ecology of sympatric speciation: A case study
Tập 40 - Trang 175-187 - 1998
Mating occurs on the larval host plant in allRhagoletis species (Diptera:
Tephritidae). We show how this attribute, when coupled with certain differences
in other biological traits, strongly influences the mode of speciation. In
species of thesuavis species group, host shifts have never occurred during
speciation, and larvae feed in the husks of any walnut species(Juglans spp.),
which are highly t...
Territory establishment of young bio-clawed shrew,Sorex unguiculatus (Dobson) (Insectivora, Soricidae)
Tập 30 - Trang 83-93 - 1988
A model of the plant-to-plant movement of aphids I. Description of the model
Tập 9 - Trang 53-61 - 1967
The plant-to-plant movement of insects in one of the factors determining the
distribution of individuals in insect populations. In this report the movement
of barley aphids was analyzed by a statistical model. The model is represented
as the convolution of three probability functions: The probability thatl
individuals are located on a plant at timet 1 is represented by the following
equation $$R\l...
The spatial distribution of the wheat-bulb fly,Leptohylemyia coarctata (fall.) (Diptera: Anthomyiidae)
Tập 16 - Trang 127-131 - 1974
The spatial distribution of the eggs, larvae, pupae and adults of the wheat-bulb
fly was investigated by fitting 42 sets of data comprising 1334 samples to the
Poisson and negative binomial distributions, and by using the power law (S 2 =am
b ). In general, the tests indicated that all stages were aggregated and fitted
the negative binomial model....
Dynamics of an enclosed population of pine mice,Microtus pinetorum
Tập 10 - Trang 21-30 - 1968
Enclosed populations of pine mice were studied over a 28-month period and
compared with populations in surrounding natural areas. The enclosed populations
reached densities far greater than any observed in surrounding natural areas. It
is suggested that the restriction placed on dispersal by the enclosure walls and
the addition of food in the form of trap bait could have allowed the enclosed
popul...
Combining methods of insect pest control: Partitioning mortality and predicting complementarity
Tập 34 - Trang 91-107 - 1992
An age-structured population model is used as a vehicle for presenting a method
for the analysis of interactions between pairs of insect pest control methods.
This analysis is based on partitioning the total mortality acting on a
population into its constituent components from all known sources. Pairwise
critical mortality curves are then constructed which represent the combined
mortality required...
Movement patterns of threeAthalia sawflies in relation to the spatio-temporal distributions of their habitats
Tập 34 - Trang 1-14 - 1992
I compared the differences in the movement intensity of three species of
sympatricAthalia sawflies,A. japonica, A. rosae andA. infumata feeding on
cruciferous plants. Mark-release-recapture census was conducted to estimate
movement distance, sex ratio and age composition of adult sawflies. In addition,
the sex ratio of newlyemerged adults was examined by rearing field-collected
larvae until adult ...
The effects and limits of territoriality on population regulation in grey red-backed voles,Clethrionomys rufocanus bedfordiae
Tập 33 - Trang 367-386 - 1991
The effects of breeding territoriality on the stability of grey red-backed vole
(Clethrionomys rufocanus bedfordiae) populations were investigated on a control
grid and a grid on which the voles were fed, in an outdoor enclosure in
Hokkaido, Japan. Vole populations were monitored by live trapping from 1984 to
1986: (1) Population density was 2–7 times greater on the experimental grid to
which food...
Alternative risk-taking styles: The case of time-budgeting strategies of terrestrial gastropods
Tập 25 - Trang 321-335 - 1983
The terrestrial slugsArion ater, Limax maximus andAriolimax columbianus have
similar morphological designs but differ remarkably in their life history
tactics and behavioural time budgets. The adaptive value of particular
risk-taking styles was investigated using a comprehensive computer simulation
model. The model allowed each species' success (growth rates, food acquisition)
and costs (distance ...