Population Ecology
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Contributions of three-site mutations in acetylcholinesterase and cytochrome P450 to genetic variation in susceptibility to organophosphate insecticides within a natural population of Drosophila melanogaster
Population Ecology - Tập 52 Số 1 - Trang 159-169 - 2010
In this study, we attempted to elucidate the two resistance factors conferring resistance to organophosphates within the Katsunuma population of Drosophila melanogaster (Meigen), one of which has been mapped on the second chromosome and the other on the third chromosome. With regard to the second chromosome factor, we tested susceptibility to malathion of 54 recombinant inbred lines with recombina...... hiện toàn bộ
A comparison of species diversity estimatorsAbstract Although having been much criticized, diversity indices are still widely used in animal and plant ecology to evaluate, survey, and conserve ecosystems. It is possible to quantify biodiversity by using estimators for which statistical characteristics and performance are, as yet, poorly defined. In the present study, four of the most frequently used diversity... ... hiện toàn bộ
Population Ecology - Tập 41 Số 2 - Trang 203-215 - 1999
Evolution of apomixis as a strategy of colonization in the dioecious species Lindera glauca (Lauraceae)
Population Ecology - Tập 44 - Trang 0293-0297 - 2002
I have investigated the reproductive biology of four dioecious species of Lindera in Japan: Lindera obtusiloba Bl., L. umbellata Thunb., L. erythrocarpa Makino, and L. glauca Bl. The sex ratios in populations of the first three species are close to equality, but in L. glauca only female individuals are found in Japan, although males are known from continental Asia. The persistence of this dioecio...... hiện toàn bộ
A laboratory study on the predatory mite, Typhlodromus pyri (Acarina: Phytoseiidae). II The effect of temperature and prey consumption on the numerical reponse of adult femalesSummary The numerical response of adult female T. pyri feeding on different levels of ERM larvae, and at a range of temperatures was examined. The duration of the pre‐oviposition period decreased as larval consumption increased, and the rate of oviposition was linearly related to the rate of consumption of larvae. Mathematical models were ... ... hiện toàn bộ
Population Ecology - Tập 30 Số 1 - Trang 13-24 - 1988
Different population responses of three sympatric rodent species to acorn masting—the role of tannin tolerance
Population Ecology - Tập 59 - Trang 29-43 - 2017
Rodent population dynamics are predicted to respond positively to the masting of acorns, but diverging results have been published. This study tested the hypothesis that population responses to acorn masting vary depending on differences in the tolerance to tannins of different rodent species. The effects of acorn abundance on the rodent population densities were analyzed using a dataset obtained ...... hiện toàn bộ
Sự biến động dân số và sự duy trì của các hệ thống một ký sinh chủ – hai ký sinh tùy thuộc vào phân bố tài nguyên: từ hành vi ký sinh đến động thái quần thể Dịch bởi AI Tóm tắt Động lực học quần thể và độ biến động được nghiên cứu trong các hệ thống thí nghiệm một ký sinh chủ – hai ký sinh với các phân bố tài nguyên khác nhau: điều kiện tài nguyên tụ tập và điều kiện tài nguyên thưa thớt. Hệ thống bao gồm một loài bọ hạt chủ, Callosobruchus chinensis , và hai loài ký sinh trùng ong, Anisoptero... ... hiện toàn bộ
Population Ecology - - 1999
The demography of native and non-native plant species in mountain systems: examples in the Greater Yellowstone Ecosystem
Population Ecology - Tập 56 - Trang 81-95 - 2013
In mountainous areas, native and non-native plants will be exposed to climate change and increased disturbance in the future. Non-native plants may be more successful than natives in disturbed areas and thus be able to respond quicker to shifting climatic zones. In 2009, monitoring plots were established for populations of a non-native species (Linaria dalmatica) and a closely related native speci...... hiện toàn bộ
Evaluating the influence of diet‐related variables on breeding performance and home range behaviour of a top predatorAbstract Diet composition is linked to reproductive performance directly or indirectly by other life‐history traits, including home range behaviour. The relationships between prey abundance, diet and individual fitness have often been explored. However, these relationships are complex and difficult to disentangle, especially in vertebrate top predators. Here, we pre... ... hiện toàn bộ
Population Ecology - - 2015
Tổng số: 755
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