排序方式: 共有3条查询结果,搜索用时 707 毫秒
1
1.
Moonsammy Stephan Oyedotun Temitope D. Timothy Renn-Moonsammy Donna-Marie Oyedotun Temitayo Deborah Ally Nasrudeen Kasim Oluwasinaayomi Faith Famewo Ayomide 《Journal of Material Cycles and Waste Management》2021,23(4):1678-1687
Journal of Material Cycles and Waste Management - The novel COVID-19 pandemic has disrupted the functioning of solid waste management globally as households experience an increase in their waste... 相似文献
2.
The use of geographic information systems (GIS) technology in natural resource management has expanded rapidly: It is the
preferred tool of spatial data analysis addressing large landscapes and is typically the presentation medium for conveying
landscape-scale scientific findings to all kinds of audiences. In a case study using the Coastal Landscape Analysis and Modeling
Study in western Oregon, it was found that the use of GIS to analyze and display natural resource data in that project produced
a variety of responses among different participants and participant groups. The findings offer insights into the workings
of groups attempting public involvement in natural resource management. 相似文献
3.
Na’ama Morag Ally R. Harari Amos Bouskila Tamar Keasar 《Behavioral ecology and sociobiology》2011,65(12):2287-2296
Mothers can epigenetically influence their progeny’s characteristics in response to environmental conditions they experience,
thereby increasing offspring adaptation to anticipated future conditions. When resource shortage is anticipated, females are
expected to produce larger offspring, as large body size often confers competitive and dispersal advantages. We tested this
hypothesis using the polyembryonic parasitoid, Copidosoma koehleri. In this wasp, each egg proliferates into a clone of genetically identical individuals within its moth host, and body size
correlates negatively with clone size. We expected females anticipating resource limitation to produce fewer and larger offspring
per clone than females that anticipate abundant resources. Encounter rates of parasitoid females with hosts were manipulated
to simulate varying levels of resource availability. High-encounter-rate females were introduced to ten hosts successively,
while low-encounter-rate females encountered each of ten hosts at 8-h intervals. To control for female age at oviposition,
we also introduced females at different ages to a single host. Contrary to our predictions, low-encounter-rate females produced
larger offspring clones than high-encounter-rate females, and offspring body size did not differ between treatments. Low-encounter-rate
females were shorter-lived than females that encountered hosts successively. Single-oviposition females resembled the high-encounter-rate
females in longevity but produced as many offspring per clone as in the low-encounter-rate treatment. Female age, and number
of previous host encounters, did not affect offspring clone size. These results suggest that offspring proliferation bears
a cost to mothers, thus mothers that repeatedly induce high proliferation in their offspring pay an increased price. 相似文献
1