Rapid urbanization in the last three decades has impacted biogeographic patterns of wildlife in China profoundly.Large areas of natural habitats have been converted into concentrated industrial and residential areas[1...Rapid urbanization in the last three decades has impacted biogeographic patterns of wildlife in China profoundly.Large areas of natural habitats have been converted into concentrated industrial and residential areas[1].Remaining habitats in vicinities of cities are often fragmented and degraded[2].Besides land use/land cover changes,anthropogenic disturbances such as the introduction of exotic species further add pressure on local biodiversity[3].How does wildlife respond to these impacts?Who展开更多
COVER STORY China, long hailed as the cheap manufacturing capital of the world, is putting financial pressure on parts of this very industry. Tax rebates favorable to textile, iron and steel industries, for example, a...COVER STORY China, long hailed as the cheap manufacturing capital of the world, is putting financial pressure on parts of this very industry. Tax rebates favorable to textile, iron and steel industries, for example, are being cast aside and picked up by hi-tech and medical industries. While this may be a partial remedy to alleviate China’s colossal trade surplus-which irritates international neighbors-and clean up the environment, many small manufacturers are feeling the heat. Industries with high added-value are clearly winners of the new trade policies, and agriculture is too, as the government continues its efforts to boost the rural economy. But in the long run, if textile and other low-tech manufacturing can use the current rebate policy as a stimulus to add more value to their products, even they might look back and see the new trade era as more win-win than they originally thought.展开更多
In many species, agonistic interactions result in social relationships that are stable over time. In Syrian hamsters, two unfamiliar males that are placed together will fight vigorously and a clear winner/loser relati...In many species, agonistic interactions result in social relationships that are stable over time. In Syrian hamsters, two unfamiliar males that are placed together will fight vigorously and a clear winner/loser relationship is usually established. In subsequent interactions, the loser will flee soon after detecting the familiar winner. Here we tested the hypothesis that losing a fight with a conspecific will affect future agonistic interactions not only toward that individual （i.e., the familiar winner） but also toward unfamiliar conspecifics. To test this hypothesis we paired two Syrian hamster males in three trials on one day in which the loser had tile opportunity to escape the winner. The next day the loser was paired with an unfarniliar male, also for three trials. If he lost again, he was tested on a third day with a third unfamiliar male. Subjects were those males that were losers on all three days. The latency to escape on the first trial on Days 2 and 3 was significantly shorter than on the first trial on Day l, indicating that losing against the first male affected the response toward unfamiliar males. However, the latency to escape on the first trial on Days 2 and 3 was significantly longer than that on the third trial on the preceding day, indicating that a loser treats unfamiliar males differently than a familiar winner. These results suggest that a defeat during an interaction with one male affects later agonistic behavior towards other, unfamiliar males [Current Zoology 57 （4）： 449-452, 2011].展开更多
ask,demand,request,require,claim都有“要求”的意思,但含义有所不同。 1.ask为一般常用词,其口气因上下文而异。如: He asked me for a pencil and a piece of paper 他向我要一支铅笔和一张纸。 They asked to go for a walk.他们...ask,demand,request,require,claim都有“要求”的意思,但含义有所不同。 1.ask为一般常用词,其口气因上下文而异。如: He asked me for a pencil and a piece of paper 他向我要一支铅笔和一张纸。 They asked to go for a walk.他们要求去散步. 2.demand为不客气的强硬要求,常用来指一个有权要求别人做某事的坚持要对方服从,不希望有相反的意见.如: We demanded an immediate answer from the manager. 我们要求经理立即答复。 I demanded to know the truth.我要求知道真相. The loser in the election demanded that the votes be counted again.竞选失败者要求再数一次选票.展开更多
你是否因为别人无足轻重的批评黯然神伤?你是否因为别人尖酸刻薄的嘲讽垂头丧气?你是否因为无法融入别人的圈子而感到自卑?如果是,请听听这首"Loser like Me",重新拾起你的信心和希望吧!"Loser like Me"这首歌出自...你是否因为别人无足轻重的批评黯然神伤?你是否因为别人尖酸刻薄的嘲讽垂头丧气?你是否因为无法融入别人的圈子而感到自卑?如果是,请听听这首"Loser like Me",重新拾起你的信心和希望吧!"Loser like Me"这首歌出自美剧《欢乐合唱团》(Glee)第二季第16集,是剧中New Directions合唱团在地区赛上的参赛曲目。展开更多
听完"Loser like Me"这首歌,你不仅会获得满满的正能量,还可以学到许多地道的英文表达。一起来看看吧。首先,歌词第一小节中有一个表达为start off like me,意为"像我一样开始",其中start off意为"开始"...听完"Loser like Me"这首歌,你不仅会获得满满的正能量,还可以学到许多地道的英文表达。一起来看看吧。首先,歌词第一小节中有一个表达为start off like me,意为"像我一样开始",其中start off意为"开始"。比如在毕业联欢会上,你被同学们拉上台唱歌,但你还没有想好要唱什么,便急中生智道:"Can I start off by singing the school song?(我可以从校歌开始吗?)"毕业时分,校歌无疑最能勾起回忆,于是同学们纷纷表示同意,说:"That’s a good way展开更多
基金supported by the National Natural Science Foundation of China (31570458)
文摘Rapid urbanization in the last three decades has impacted biogeographic patterns of wildlife in China profoundly.Large areas of natural habitats have been converted into concentrated industrial and residential areas[1].Remaining habitats in vicinities of cities are often fragmented and degraded[2].Besides land use/land cover changes,anthropogenic disturbances such as the introduction of exotic species further add pressure on local biodiversity[3].How does wildlife respond to these impacts?Who
文摘COVER STORY China, long hailed as the cheap manufacturing capital of the world, is putting financial pressure on parts of this very industry. Tax rebates favorable to textile, iron and steel industries, for example, are being cast aside and picked up by hi-tech and medical industries. While this may be a partial remedy to alleviate China’s colossal trade surplus-which irritates international neighbors-and clean up the environment, many small manufacturers are feeling the heat. Industries with high added-value are clearly winners of the new trade policies, and agriculture is too, as the government continues its efforts to boost the rural economy. But in the long run, if textile and other low-tech manufacturing can use the current rebate policy as a stimulus to add more value to their products, even they might look back and see the new trade era as more win-win than they originally thought.
文摘In many species, agonistic interactions result in social relationships that are stable over time. In Syrian hamsters, two unfamiliar males that are placed together will fight vigorously and a clear winner/loser relationship is usually established. In subsequent interactions, the loser will flee soon after detecting the familiar winner. Here we tested the hypothesis that losing a fight with a conspecific will affect future agonistic interactions not only toward that individual （i.e., the familiar winner） but also toward unfamiliar conspecifics. To test this hypothesis we paired two Syrian hamster males in three trials on one day in which the loser had tile opportunity to escape the winner. The next day the loser was paired with an unfarniliar male, also for three trials. If he lost again, he was tested on a third day with a third unfamiliar male. Subjects were those males that were losers on all three days. The latency to escape on the first trial on Days 2 and 3 was significantly shorter than on the first trial on Day l, indicating that losing against the first male affected the response toward unfamiliar males. However, the latency to escape on the first trial on Days 2 and 3 was significantly longer than that on the third trial on the preceding day, indicating that a loser treats unfamiliar males differently than a familiar winner. These results suggest that a defeat during an interaction with one male affects later agonistic behavior towards other, unfamiliar males [Current Zoology 57 （4）： 449-452, 2011].
文摘ask,demand,request,require,claim都有“要求”的意思,但含义有所不同。 1.ask为一般常用词,其口气因上下文而异。如: He asked me for a pencil and a piece of paper 他向我要一支铅笔和一张纸。 They asked to go for a walk.他们要求去散步. 2.demand为不客气的强硬要求,常用来指一个有权要求别人做某事的坚持要对方服从,不希望有相反的意见.如: We demanded an immediate answer from the manager. 我们要求经理立即答复。 I demanded to know the truth.我要求知道真相. The loser in the election demanded that the votes be counted again.竞选失败者要求再数一次选票.
文摘你是否因为别人无足轻重的批评黯然神伤?你是否因为别人尖酸刻薄的嘲讽垂头丧气?你是否因为无法融入别人的圈子而感到自卑?如果是,请听听这首"Loser like Me",重新拾起你的信心和希望吧!"Loser like Me"这首歌出自美剧《欢乐合唱团》(Glee)第二季第16集,是剧中New Directions合唱团在地区赛上的参赛曲目。
文摘听完"Loser like Me"这首歌,你不仅会获得满满的正能量,还可以学到许多地道的英文表达。一起来看看吧。首先,歌词第一小节中有一个表达为start off like me,意为"像我一样开始",其中start off意为"开始"。比如在毕业联欢会上,你被同学们拉上台唱歌,但你还没有想好要唱什么,便急中生智道:"Can I start off by singing the school song?(我可以从校歌开始吗?)"毕业时分,校歌无疑最能勾起回忆,于是同学们纷纷表示同意,说:"That’s a good way
