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 estimation and simulation of variable developmental period, with application to the mosquitoAedes aegypti (L.)
Tập 21 - Trang 68-80 - 1979
The variability of stage developmental period may be a seminal feature of some insect populations and therefore of importance in management studies. A transfer function technique is described for estimating the frequency distribution of developmental period and simulating the subsequent population dynamics. The technique relates recruitment time series of consecutive stages by an age-specific deve......
Hệ thống một ký sinh một chủ: Động thái quần thể của bướm zygaenid Pryeria sinica Moore trong môi trường chưa bị xáo trộn Dịch bởi AI
Tập 28 - Trang 333-346 - 1986
Động thái quần thể của Pryeria sinica đã được nghiên cứu trong một khu vực chưa bị xáo trộn từ năm 1976 đến 1979. Chúng tôi đã phân tích quy trình ổn định quần thể địa phương bằng cách tiếp cận bảng sinh mệnh cho các giai đoạn chưa trưởng thành và phương pháp đánh dấu-nắm bắt cho giai đoạn trưởng thành. Con cái thường đẻ khoảng 130 trứng trong một khối trứng. Hình dạng của đường cong sống sót là l......
#Pryeria sinica #động thái quần thể #ký sinh trùng #tỷ lệ tử vong #sinh thái học.
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 ......
The structure and behavior of defoliating insect/forest systems
Tập 23 - Trang 280-298 - 1981
Using four detailed and complex simulation models we derive a framework for predicting behavior of any defoliating insect/forest system. The framework uses simple and easily gathered biological information on four sets of state variables, each with a characteristic temporal scale, to predict presence, absence or form of key ecological processes acting on or between the variables. The combination o......
Regulatory processes and population cyclicity in laboratory populations ofAnagasta kühniella (Zeller) (Lepidoptera: Phycitidae) IV. The sequential steps in the behavioral process of host finding and parasitization by the entomophagous parasite,Venturia canescens (Gravenhorst) (Hymenoptera: Ichneumonidae)
Tập 15 - Trang 23-31 - 1973
The sequential steps in the behavioral process of a California stock of the entomophagous parasite,Venturia canescens (Grav.), parasitizingAnagasta kühniella (Zeller) was studied. In host-habitat finding, food media infested with hosts were very attractive to the parasites. Host finding was not covered in detail in this paper as it is presented in subsequent papers. Briefly, in all experiments hos......
Morphometric variation within apterous females ofSchizaphis graminum biotypes
Tập 28 - Trang 163-172 - 1986
The occurrence of greenbug,Schizaphis graminum (Rondani), biotypes is a constant threat to the development and stability of pest-resistant cereal crop varieties. Of the five biotypes (A, B, C, D, E) reported, only biotype B can be differentiated in life from the others by the physical characteristics of color. The other biotypes are differentiated on the basis of their ability to kill certain host......