Cate westrich CER by CATE WESTRICH https://padlet.com/catewestrich25/gs06ya7302zky922 The natural selection mechanism has increased the bird's beak size from 1979 to 1978. en-us 2021-02-02 18:58:40 UTC 2026-02-01 19:36:44 UTC hello@padlet.com https://padlet.net/icons/png/1f30a.png Summer of 1976 the beak depth of the birds is 9.65mm and a length of 10.71mm then in 1978 , there was only 90 finches left on the island, with and average beak depth of 10.55mm and a length of 11.61mm catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160259029 2021-02-03 18:12:46 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160259029 catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160316395 The reason why that had happened is because there was a drought. and the seeds/plants that they where previously eating had died out do to no water. so the birds with shorter beaks for plants decreased and the birds with longer beaks who hunt primarily insects increased.]]> 2021-02-03 18:22:35 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160316395 in 1977 there was only 20 mm of rainfall on daphne major causing a severe drought. catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160540165 2021-02-03 19:02:57 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160540165 catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160546037 When the drought came it had dried out most soft plants that the smaller beaked birds where eating. But nuts and seed that were still there aloud the big beaked birds to be able to last longer on the island.]]> 2021-02-03 19:04:06 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160546037 in 1976 there was portulaca seeds,hard seeds, about 10 per square meter. tribulus terrestris, soft seeds about 9 per square meter. catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160565060 2021-02-03 19:07:49 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160565060 catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160588458 For the short beaked birds. Because of the drought. so that population had died out due to the seeds.]]> 2021-02-03 19:12:26 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1160588458 catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1165280587 2021-02-04 18:13:36 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1165280587 catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1165293334 2021-02-04 18:15:40 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1165293334 catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1165294645 2021-02-04 18:15:52 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1165294645 catewestrich25 https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1165297596 2021-02-04 18:16:21 UTC https://padlet.com/catewestrich25/gs06ya7302zky922/wish/1165297596