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Dictionary » D » Drought

Drought

Drought

1. Dryness; want of rain or of water; especially, such dryness of the weather as affects the earth, and prevents the growth of plants; aridity. The drought of march hath pierced to the root. (Chaucer) In a drought the thirsty creatures cry. (Dryden)

2. Thirst; want of drink.

3. Scarcity; lack. A drought of Christian writers caused a dearth of all history. (Fuller)

Origin: oe. Droght, drougth, dru, as. Druga, from drugian to dry. See dry, and cf. Drouth, which shows the original final sound.


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Re:

... example which is from a natural situation is beak size in birds. In particular, Darwin's finches in the Galapagos islands. During a period of drought, small-seed plants began to dominate the flora and there was selective pressure for reduced beak size in the finches living there who depended ...

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by robsabba
Thu Aug 27, 2009 2:48 pm
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 177
Views: 16360

Re: Innovating a research

... of strawberries in my backyard, the variables being either the varieties grown, the growing medium, fertilizer, etc. I could test for pest or drought resistance, berry size or production, etc. I wonder though, would research I can conduct in my own backyard be statistically relevant, or would ...

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by biomom
Thu Jul 16, 2009 3:54 pm
 
Forum: General Discussion
Topic: Innovating a research
Replies: 4
Views: 115

Re: Diversifying selection

... don't have the material with me--but basically in a less harsh environment ("normal mild") both large and small beaks were alive. During drought the small disappeared and later reappeared after normal conditions returned. 3) This and other studies (bacterial ecological specialization) ...

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by AFJ
Fri Jul 10, 2009 2:15 am
 
Forum: Evolution
Topic: Diversifying selection
Replies: 15
Views: 442

Greenies Realise

... the sea = increased rainfall for us, of course the media just happened to forget about that and then remembered again about a week ago when the 'drought' drama wasnt getting as many viewers. Sorry was only applying to my situation - feel sorry for our wheat belt though. BTW, Through my mocking ...

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by futurezoologist
Sun Jun 28, 2009 1:23 pm
 
Forum: Ecology
Topic: Greenies Realise
Replies: 4
Views: 209

Re: Problems with Evolution !

... because they lack the fat deposits, thus, cannot survive a long period of time without food. While species A will most likely survive until the drought is over, due to the fat depositss. Therefore, the alleles of spcies A will be passed on to the next generation where you will see that the POPULATION ...

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by Darwin420
Mon Nov 24, 2008 9:10 pm
 
Forum: Evolution
Topic: Problems with Evolution !
Replies: 33
Views: 5448
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