https://padlet.com/erikaleipold23/x864sb87mzeo Medium Ground Finch en-us 2019-02-05 15:21:53 UTC 2019-02-20 16:30:40 UTC hello@padlet.com erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/327825383 Natural selection caused the beaks of the Medium Ground Finch population on Daphne Major to increase in size from 1976-1978.]]> 2019-02-05 15:28:55 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/327825383 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328270307 2019-02-06 14:44:51 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328270307 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328270806 According to the Google Sheet- Number of Portulaca and Tribulus per Square Meter per Month, From November of 19777 to December of 1978 the Portulaca Seeds had an average of about 0.4 seeds per month and the Tribulus seeds had an average of about 5 seeds per month.]]> 2019-02-06 14:45:32 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328270806 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328275019 According to the Google Sheet- Number of Medium Ground Finches on Daphne Major by Month, In November of 1976 the Finch population on Daphne Major was 751 Finches. In November of 1978 the Finch population on Daphne Major was 243 Finches.]]> 2019-02-06 14:50:54 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328275019 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328278651 According to the Google Sheet- Rainfall on Daphne Major by Year, In 1976 the average rainfall on Daphne Major was 130mm that year then it dropped in 1977 to 20mm of rainfall that year]]> 2019-02-06 14:55:59 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328278651 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328280361 The Portulaca seed is a soft shelled seed and the only seed that the thin-beaked Medium Ground Finch could eat because their beaks were to tiny for the hard-shelled Tribulus seed. Due to the seed dying out because of the drought that occured and the Tribulus seed being the only seed available the thin-beaked Finches were unable to eat anything and they died. Now that there were only thick-beaked Finches they reproduced together to create offspring with thicker beaks. This process is Natural Selection.]]> 2019-02-06 14:58:27 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328280361 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328296210 This shows that the Mechanism of Microevolution was Natural Selection because in 1976 before the drought began the population of total finches was 751 on Daphne Major. Once the drought hit in 1977 and the damage was done in 1978 the Finch population on Daphne Major was 243 Finches. This is a sharp decrease and goes to show that all of the thin-beaked Finches died out, explaining the sharp decrease, and only the thick-beaked finches and their thick-beaked offspring were left because they were the only ones who could eat their only food source left, the Tribulus seed. Due to them being the only ones left they then reproduced and they gave the thick-beaked trait to heir offspring making the populations beak size increase which shows natural selection.]]> 2019-02-06 15:22:21 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328296210 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328299722 This shows that Natural Selection occured because this is showing the drought. In 1976 before the drought the rainfall average was 130mm then in 1977 while the drought was occuring this number dropped to 20mm that year. Because of this drought the Portulaca seed (soft seed) was not able to grow and the thin-beaked birds could not eat. This caused the thin-beaked birds to die off and the thick-beaked birds were the only ones left on the island. Then the thick-beaked birds reproduced the population changed to have thicker beaks showing natural selection.]]> 2019-02-06 15:27:22 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328299722 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328302948 According to the Google Sheet- Finch Characteristics 1976 and Finch Characteristics 1978, the the average beak size for the Medium Ground Finch in 1976 was 10.7mm long and 10.2mm deep. In 1978 the average beak size for the Medium Ground Finch increased to 11.6mm long and 11.5mm deep.]]> 2019-02-06 15:31:55 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328302948 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328305919 This evidence shows that Natural Selection occured because in 1976 before the drought occurred when there were Portulaca or soft shelled seeds that the thin-beaked Finches could eat, were available there was plenty for them to eat and so the population of thin and thick beaked birds remained. Then after the drought had occurred in 1977 the thin-beaked birds died out so there was only thick-beaked birds on Daphne Major which increased the average beak size.]]> 2019-02-06 15:35:25 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328305919 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328309683 2019-02-06 15:40:28 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328309683 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328310533 2019-02-06 15:41:42 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328310533 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328763953 2019-02-07 14:55:00 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328763953 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328765753 2019-02-07 14:57:19 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328765753 erikaleipold23 https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328766384 2019-02-07 14:58:15 UTC https://padlet.com/erikaleipold23/x864sb87mzeo/wish/328766384