https://padlet.com/sabrinalongwell25/5z82y75vnltclpav Which mechanism of microevolution caused the beak of the medium ground finch population in Daphne major to increase in size from 1976 to 1978? en-us 2021-02-03 14:12:43 UTC 2021-02-05 13:57:41 UTC hello@padlet.com sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163718757 Before the drought, the finch beak length averaged around 7 mm to 11 mm and the population was at 751. After the drought, the finch beak length averaged around 10 mm to 12 mm and the population was at 93. (source: data sheet)]]> 2021-02-04 13:55:30 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163718757 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163732177 The plant life in Daphne Major decreased. The portulaca plant started at 8 per square meter in Dec 1976 then in Dec 1977 the plant was at 0 per square meter. The tribulus plant started at 11 per square meter in Dec 1976 then in Dec 1977 the plant was at 6 per square meter. (source: data sheet)]]> 2021-02-04 13:57:54 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163732177 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163748142 Daphne Major experienced a major drought during 1977. During this drought only 20 mm of rainwater fell on the island. (source: data sheet)]]> 2021-02-04 14:00:48 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163748142 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163765370 Natural selection is when organisms that are better adapted to survive, survive and those that are not, die. This is what occured on Daphne Major. The drought of 1977 was the cause, and since so little rain water fell, some of the medium ground finches were not able to survive due to their now changing environment.]]> 2021-02-04 14:03:48 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163765370 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163792827 Since so little rainwater fell, most of the plant life died. The portulaca plant produces soft, easy to eat seeds, while the tribulus produces large, hard seeds. The portulaca plant did not survive the drought, only the tribulus did. However, only the finches with long, tough beaks could eat the seeds from the tribulus flower. ]]> 2021-02-04 14:08:27 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163792827 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163806441 After the drought, 658 finches had died. The only ones left over were the finches with longer beak sizes. This is because these finches could eat the limited food that was available for them. In this case, the limited food was the tribulus and the finches whose beaks could not break the seeds died off. The longer beaked finches were better adapted to survive, so they survived]]> 2021-02-04 14:10:32 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163806441 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163835668 Natural selection caused the beak of the medium ground finch population in Daphne major to increase in size from 1976 to 1978.]]> 2021-02-04 14:15:30 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163835668 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163872532 2021-02-04 14:21:55 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163872532 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163876740 2021-02-04 14:22:36 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163876740 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163882503 2021-02-04 14:23:36 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163882503 sabrinalongwell25 https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163888957 2021-02-04 14:24:40 UTC https://padlet.com/sabrinalongwell25/5z82y75vnltclpav/wish/1163888957