User:Chicaiza.1/sandbox

https://en.wikipedia.org/wiki/Character_displacement 1.)This page has plenty of room for growth. Applying research that has been conducted on character displacement in relation to the galapagos finches could allow there to be a better understanding on the evolution of the Galapagos finches. This could be done by looking at the Geospiza fortis who diverged in beak size from Geospiza magnivostris 22 years after its arrival to the island.

https://en.wikipedia.org/wiki/Darwin%27s_finches 1.)I very much enjoyed the portion of Molecular basis of beak evolution, I think it would be great to have even more information on the beak evolution of the finches. Adding another subtopic such as the morphology of the beaks could help broaden the knowledge of evolution in finches. Discussing environment and describing the impact it had on finches beak size would be a way to approach the topic. There is on going research describing species such as the Geospiza fortis and the Geospiza scandens that describe these changes.

2.)Adding on to the topic of beak size among the finches there could be a portion that shows factors that have contributed to the change and evolution of finches beak size, for example character displacement.

https://en.wikipedia.org/wiki/Character_displacement Character displacement has indicated to be a major factor in beak size among finches located on the Galapagos Island and Hawaii.(Schluter 1988)
 * Schluter,D. 1988 Character Displacement and the Adaptive Divergence of Finches on Islands and Continents. The American Naturalist 131:799-824

Topic: Darwin's Finches Peter R. Grant, B. Rosemary Grant. Unpredictable Evolution in a 30-Year Study of Darwin's Finches. Science Magazine.2002;296(e.g. 2):707-711

Through out this research they discuss Geospiza fortis (medium ground finch) and Geospiza scandens (cactus finch) and the predictability along with the unpredictability of evolution. It discusses the physical change in body size and physical change with their beak structure. This research allows me to look at both the genotypic and phenotypic change through out time on finches in the Galapagos.

2.	Peter R. Grant, B. Rosemary Grant. Evolution of Character Displacement in Darwin's Finches. Science Magazine.2006;313:224-226

This research gives an insight as to the reasons such as food source and supply that allowed Geospiza fortis to have a similar beak structure as Geospiza scandens. It looks at the aspect of completion within evolution.

3.	A. HERREL, J. PODOS, S. K. HUBER and A. P. HENDRY. Bite performance and morphology in a population of Darwin’s ﬁnches: implications for the evolution of beak shape. Functional Ecology.2005;19:43-48

In this journal the author describes and gives insight in to the bite force in Darwin’s finches. He discusses how beak, head and body dimensions have an impact on bite force. This research will allow me to look at how other factors such as bite force could have allowed a change in the physiology of finches through out time.

4.	A. HERREL, J. PODOS, S. K. HUBER and A. P. HENDRY. Evolution of bite force in Darwin's finches: a key role for head width. Evolutionary Biology.2005;18(3):669-675

This research gives a more in depth look at how head width plays a larger role in determining the bite force in Darwin’s finches. This research brings in the factor of head width as playing a very important role in the evolution of the Galapagos finches.

5.	Schluter,D. Character Displacement and the Adaptive Divergence of Finches on Islands and Continents. The American Naturalist .1988;131(6):799-824

This research looks at character displacement in finches it goes beyond just looking at beak size and also looks at other factors such as food availability and competition that exists with in the island. The author believes although they are factors that can affect the process of evolution, it isn’t as significant as in other environments.