CER - Lab 18 (Finch) by JENNIFER VELASCO COMAYAGUA https://padlet.com/jennifervelascocom24/vmyazzqzekb en-us 2020-02-04 18:26:54 UTC 2023-03-15 05:53:33 UTC hello@padlet.com Drought jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440515344 Showing from the data that was collected it showed that in 1977 the rainfall was 20 mm. During 1976 the rainfall was at 130 mm and in 1978 it was 540 mm. By looking at the data in 1977 (during the drought) it was at 20 mm and comparing them to the other years, before the drought it was at 130 mm. During the drought, it dropped to 20 mm and after the drought it increased to 540 mm.]]> 2020-02-04 19:05:47 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440515344 Traits jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440515647 2020-02-04 19:06:10 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440515647 Seeds jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440515737 The average beak depth for these birds are around 9.84 mm. What this has to deal with natural selection is that the birds with the average beak depth that are "better adapted" will last longer or mostly likely to survive longer which is the "survival of the Fittest". "Survival of the Fittest" is inspiration "by the principle of natural selection, postulating that those who are eliminated in the struggle for existence are the unfit."]]> 2020-02-04 19:06:17 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440515737 Reasoning 1# jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440515865 2020-02-04 19:06:26 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440515865 Reasoning 2# jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440516044 2020-02-04 19:06:38 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440516044 Reasoning 3# jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440516204 2020-02-04 19:06:50 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440516204 Plants jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440516386 Plant life, certain plants died due to the lack of water. Portulaca ended up with the population that went to 0. The reason being because the birds with a small beaks were able to eat Portulaca because the Tribulus were hard for birds with small beaks. Due to the birds with small beaks eating Portulacas, the population of the Portulacas started to decrease because during the drought (1977) the Portulacas population was still active, but then after the drought the Portulacas population went to 0 and the rainfall in 1977 was at 540 mm. This explaining that Portulacas don't need water because "The cylindrical foliage of the portulaca flower retains moisture very well, thus, regular watering is not needed." This explains why the Portulacas went down because the drought happened causing other plants to die, but not Portulacas because they don't need that much water. Portulacas not needing water helped the small beak birds survive because it wouldn't need water. After the drought, the Portulacas population went down due to the birds with small beaks eating them. ]]> 2020-02-04 19:07:05 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440516386 Genes jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440516479 2020-02-04 19:07:13 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/440516479 "Genes that determine traits that are associated with an increased chance of survival and successful reproduction will become more common in a population, and genes that determine traits they decrease an individual's chance of survival or reproduction will become less common." Basically, the "survivors will pass on their better genes to their offspring who will also show this beneficial variation." This will help the larger birds offspring to survive if the drought happens again. jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442313078 2020-02-07 18:15:17 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442313078 The medium ground finch eats seeds, of course, but it eats Tribulus the most. The seeds play a big role in the increase of beak because "... the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of them survived." jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442316292 2020-02-07 18:20:03 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442316292 Question: Which mechanism of microevolution caused the beak of medium ground finch population in Daphne Major to increase in size from 1976 to 1978? jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442320092 2020-02-07 18:25:14 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442320092 jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442348160 2020-02-07 19:10:45 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442348160 jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442349288 2020-02-07 19:12:35 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442349288 jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442349467 2020-02-07 19:12:55 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442349467 jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442352195 2020-02-07 19:17:50 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442352195 jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442781163 2020-02-09 23:03:28 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442781163 The population of the small beaks died off because they were short and thin and because of their beaks. The small beaks died off because they couldn't eat what the larger beaks could. This caused a trait of long beaks to increase for those birds that had larger beaks. The average beak depth is 9.84 mm or somewhere around there. jennifervelascocom24 https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442789952 2020-02-09 23:51:58 UTC https://padlet.com/jennifervelascocom24/vmyazzqzekb/wish/442789952