https://padlet.com/charleyellebracht24/zl4rjvbwayuw Claim: Natural selection caused the beaks of the medium ground finch to increase in size on Daphne Major from 1976-1978 en-us 2020-02-07 16:04:31 UTC 2024-07-15 12:39:05 UTC hello@padlet.com charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442226266 during the drought the portulaca seed decreased from 18 to 0 per square meter from 1976-1978. The tribulus seed decreased from 14 to 4 per square meter.]]> 2020-02-07 16:04:31 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442226266 charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442226269 in the year 1976 the rainfall was 130mm, in 1977 the rainfall was 20mm and then in 1978 the rainfall went back up to 540mm to around its normal rainfall per year. so in 1976 and 1977 there was a drought.]]> 2020-02-07 16:04:31 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442226269 charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442227873 the population went from 751 in 1976 to 93 in January of 1978 to back up in 306 in June of 1978]]> 2020-02-07 16:06:40 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442227873 charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442232619 Because of the drought it caused the Portulaca seeds to decrease to 0 so the birds that didn't have evolved beaks couldn't eat the Tribulus seeds so they had nothing to eat.]]> 2020-02-07 16:12:59 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442232619 charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442236245 because the Portulaca seeds decreased to 0 they non evolved birds couldn't eat it and died from starvation but the ones who did have evolved harder and longer beaks could eat the Tribulus seeds so they didn't starve.]]> 2020-02-07 16:18:16 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442236245 charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442244452 Because of the lack of food especially with the Portulaca seed going extinct on the island the non-evolved birds died from starvation because they didn't have any food which caused a decrease in the population making it go down.]]> 2020-02-07 16:30:32 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442244452 charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442247209 2020-02-07 16:34:31 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442247209 charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442251685 2020-02-07 16:41:01 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442251685 charleyellebracht24 https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442253756 2020-02-07 16:44:17 UTC https://padlet.com/charleyellebracht24/zl4rjvbwayuw/wish/442253756