Microevolution by AJ SMALL https://padlet.com/ajsmall23/nbzq5zzzhxy1 Of Medium Ground Finches Beak Size en-us 2019-02-05 16:32:43 UTC 2025-10-11 20:57:52 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Bigthunderstorm.png Claim ajsmall23 https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328321975 Natural Selection caused the beak of the Medium Ground Finch Population on Daphne Major to increase in size from 1976 to 1978.]]> 2019-02-06 15:58:38 UTC https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328321975 Evidence 1 ajsmall23 https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328323433 Drought began on the island in 1977 and the rain decreased to only 20 mm the entire year.
(NSTA PG. 306)]]> 2019-02-06 16:01:03 UTC https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328323433 Reasoning 1 ajsmall23 https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328324914 The drought caused the Portulaca plants to die off and natural selection took course because of this. These plants had produced the small seeds that the Medium Ground Finches ate.]]> 2019-02-06 16:03:31 UTC https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328324914 Evidence 2 ajsmall23 https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328325700 Portulaca plants withered and died from the severe drought on the island in 1977.
(NSTA PG. 306)]]> 2019-02-06 16:04:47 UTC https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328325700 Evidence 3 ajsmall23 https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328327285 The finches population on Daphne Major decreased from 1976 to 1978.
(NSTA PG. 306)]]> 2019-02-06 16:07:17 UTC https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328327285 Reasoning 2 ajsmall23 https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328327870 Natural Selection caused the smaller, thin beaked finches died off from not being able to eat because of the drought as they were unable to eat the larger, harder seeds of the Tribulus plants. This caused their population to decrease from 751 in the summer of 1976 to 90 left on the island by the end of 1978.]]> 2019-02-06 16:08:12 UTC https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328327870 Reasoning 3 ajsmall23 https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328328181 Natural selection caused the average beak size of the Medium Ground Finch population on Daphne Major to increase from a depth of 9.65 mm and a length of 10.71 mm to a depth of 10.55 mm and a length of 11.61 mm. ]]> 2019-02-06 16:08:42 UTC https://padlet.com/ajsmall23/nbzq5zzzhxy1/wish/328328181