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比较双层叠帐法和BG-trap诱捕器法2种媒介伊蚊监测方法在登革热疫点的捕蚊效果，为科学开展监测提供参考。方法 2017年9－10月，选择杭州市12个区（县）的160个住宅区，包括核心区、警戒区及监控区，同时使用双层叠帐法和BG-trap诱捕器法对居民区及其周围环境进行媒介伊蚊应急监测，2种方法设置间隔100 m以上，监测30 min，分别计算叮咬指数（只/h）和诱蚊指数（只/h）。采用单因素方差...
The sand trap:Demand outpaces caution–and knowledge（图）
sand trap Demand outpaces caution knowledge
2017/9/20
Sand, spanning miles of beaches, carpeting vast oceans and deserts, is a visual metaphor for limitless resources. Yet researchers in this week’s journal Science seize another metaphor – sand in an ho...
Scientists discover spring-loaded mechanism in unusual species of trap-jaw ant（图）
scientists spring-loaded mechanism trap-jaw ant
2017/9/19
Researchers reveal how a group of trap-jaw ants can snap their jaws shut at speeds of up to 50 miles per hour – just fast enough to capture their elusive prey.
They report their findings in the Journ...
Camera-trap research paves the way for global monitoring networks
Camera-trap research global monitoring networks
2017/7/24
Biodiversity loss is one of the driving factors in ecosystem change, on par with climate change and human development. When one species, especially a large predator, disappears from an area, other pop...
Trap-jaw ants jump with their jaws to escape the antlion's den
Trap-jaw ants jump escape the antlion's den
2015/5/25
Some species of trap-jaw ants use their spring-loaded mandibles to hurl themselves out of harm’s way when an ant-trapping predator stalks, researchers report in the journal PLOS ONE. This dramatic man...
Trap Crop Systems for Striped Cucumber Beetle Control in Winter Squash
Striped Cucumber Beetle Contro Winter Squash
2015/1/22
Striped cucumber beetle, Acalymma vittatum F., is the primary insect pest of cucurbit crops in the Northeastern United States. Adult beetles colonize squash crops from field borders, causing feeding d...
新型分子标记——SRAP与TRAP及其应用
SRAP TRAP 分子标记
2007/12/7
SRAP与TRAP是最近发展的新型分子标记系统，具有简单、高效、高共显性、重复性、易测序等优点，尤其是可检测基因的可译框（ORFs）区域。本文对分别在芸薹属作物与向日葵中开发的SRAP、TRAP标记系统的基本原理与分析程序进行介绍。引物设计是SRAP与TRAP分析的关键，目前已开发出多个SRAP正、反向引物；与SRAP标记技术无须任何序列信息不同，TRAP技术需要基于已知cDNA 或EST序列信息...