2014.04.04 【英译汉】气候变暖,落基山野花花期延长了一个月(3)

发表于:2014-04-04 00:59 [只看楼主] [划词开启]

@heyjude1943 @如雪肃杀 @myAnne123 @Medical20 @指尖流苏 @me陈丽雯 @孤单羽毛

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Warming gives us one more month of flowers in the Rockies(3)

气候变暖,落基山野花花期延长了一个月(3)

For some species, the longer blooming season will mean more growth and a population boom; for others, the warmth is less than ideal, causing those species to migrate to higher or lower elevations to a more comfortable temperature. Each of these species’ shifts, mostly imperceptible to us, will alter the composition of the meadow—and the resources available to pollinators  and other animals in the area. This isn’t necessarily a bad thing; most animals can adapt to changes in their resource distribution and availability. But over time, we might see more significant changes in the ecosystem.


接上文:

Numbers are very nice and all, but they don’t quite convey the complexity of the changes. So here are some individual species and their changes in flowering times to help us imagine it better.

数字是很好,但他们不太能表达变化的复杂性。所以这里列了一些个别物种和它们的开花时间的变化来帮助我们更好地想象这个问题。

Heartleaf bittercress (Cardamine cordifolia) now blooms 28 days earlier, peaks 25 days earlier, and closes 18 days earlier, for a longer growing season by 10 days.

始花期提前了28天,盛花期提前了25天,末花期时间提前了18天。整个花期延长了10天。


Twolobe larkspur (Delphinium nuttallianum) first blooms 14 days earlier and peaks 12 days earlier for a longer flowering season.

Twolobe larkspur始花期和盛花期分别提前了14天和12天,花期延长。


Sulphur buckwheat (Eriogonum umbellatum ) has its last bloom 41 days earlier—but its first bloom has stayed the same. Its abundance has decreased by 88 percent.

末花期提前了41天,但是始花期时间不变,其多度下降了88%。


Yarrow (Achillea millefolium) blooms linger for 17 more days into the fall.

欧蓍草花期延长17天,进入了秋天。


Creeping mahonia (Mahonia repens ) peaks 16 days earlier.

盛花期提前了16天。


Wild strawberry (Fragaria virginiana) now blooms 11 days earlier and is 36 percent more common.

弗吉尼亚草莓始花期时间提前了11天,36% 更普通。


*These numbers are all calculated from the average change in days per decade * 4 (39 years ~ 4 decades). Basic info: (1) First flower bloomed 6 days earlier per decade on average; (2)Spring peaked moved up 5 per decade on average; (3) Last flower bloomed 3 days later per decade on average; (4) Site temperature increased 0.4°C per decade on average; (5) Snowmelt occurred 3.5 days earlier per decade on average

这些数据是由有每十年花期天数的平均值计算得来。基本数据:(1)第一次开花时间每十年平均提前了6天(2)春季野花鼎盛期每十年平均提前了5天(3)最晚开花时间每十年平均推迟3天(4)温度每十年平均升高0.4°C (5)积雪融化时间每十年平均提前3.5天。

参考文献:

CaraDonna P.J., Iler A.M. & Inouye D.W. Shifts in flowering phenology reshape a subalpine plant community, Proceedings of the National Academy of Sciences, DOI:10.1073/pnas.1323073111


科普小知识:多度


对个体数(密度)有关的定量的群落测度之一。常具有两方面的意义:(1)意味着个体数的推测,分为5级:①极少;②少;③稍多;④多;⑤极多,而单独使用并不太多。常与覆盖度结合而作为优势度来使用;国内多采用DRUDE的七级制多度:SOC(SOCIALS) 极多

COP3(COPIOSAE) 数量很多

COP2 数量多

COP1 数量尚多

SP(SPARSAL) 数量不多而分散

SOL(SOLITARIAE) 数量很少而稀疏

UN(UNICURN) 个别或单株

(2)意味着仅限于某种生物种类出现的调查区中平均个体数,用于群落结构的分析。多度A与频率F及密度D之间有着这样的关系:A=100×D.F。另外,多度A与频率F之比即 A/F比率(P.W.Whitford,1949)是分散系数之一。




2014.04.04 【英译汉】气候变暖,落基山野花花期延长了一个月(1)

2014.04.04 【英译汉】气候变暖,落基山野花花期延长了一个月(2)



最后编辑于:2014-04-13 21:36
分类: 英语
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