Darwin’s Finches and Natural Selection in the Galapagos

During his visit to the Galapagos Islands, Charles Darwin discovered several different island finches that helped him develop the theory of natural selection.

The Galapagos Islands are an archipelago of over 100 small islands spanning 13 major islands and the equator of the coast of Ecuador. Giant tortoise, Iguana, Seal, Sea lion, Shark, Shark, 26 unique birds inhabit. 14 of them are birds known as Darwin. These finches are considered to be the fastest growing vertebrate in the world as its appearance and behavior quickly adapts to this closed and rapidly changing environment.

Today, Darwin 's finches are attacked by introduced parasitic fly. Earth observation volunteers capture the fins in a mist network (a thin net not visible to birds), measure them, collect gene samples, and record the damage caused by parasites before releasing them I will help you. They recorded and tested the function of Finch's songs, gathered data on the living bird's behavior at will, and helped determine the number of current birds on the island. They also helped to study the evolutionary change of Darwin's Finch. All of these activities will provide important information for the action plan being implemented in the Galapagos National Park to ensure the survival of these iconic finches

Take the finch of Darwin as an example. Each finch observed by Charles Darwin seems to be sufficiently similar that they may have shared a recent universal finch ancestry. When Charles Darwin examined the finches of different islands of the Galapagos Islands, he discovered that each island has its own physical difference - so much, as they are completely different species It should be classified. Those finches are geographically separated from each other - they are long enough to be a completely independent group. This discovery eventually developed his theory of natural selection and its role in the origin of species.

A woman's choice shapes the male Southern Cappuccino sea dieter's wings and songs, as driving the formation of seeds in those birds to shape the scorpions of the Galapagos-Darwin in a natural way (and still to shape) It seems to be the key. People are fascinated by the evolution of Finch species flocks. Leonardo Campagna, Márcio Repenning, Luís Fábio Silveira, Carla Suertegaray Fontana, Pablo L. Tubaro, Irby J. Lovette (2017). Repeated divergence of chromogenic genes in fast finch radiation, Science Advances, 3: e 1602404, May 24, 2017 published online doi: 10.1126 / sciadv.1602404

On the voyage of Darwin to the Darwin Beagle of the Galapagos Islands, he noticed the change in Finch species. Darwin knew there was a finch in the South American continent, but at the Galapagos he found 13 different species. Each species has different characteristics that contribute to their environment: their sputum depends on the source of the food.

The Galapagos bird is a famous example of the voyage of Darwin. Each Garapagos Islands visited by Darwin has its own birds (14 in total). This can not be seen anywhere in the world. Several cockroaches are suitable for large seeds, some are suitable for small seeds, some are thin cockroaches to supply buds and cockroaches like parrots to feed fruit, and small insects (See FIG. 4). People use thorns and find insect larvae in trees like woodpeckers. (6 people are ground resident, 8 are wood birds) (diversity on various ecological roles or niches is considered necessary condition for coexistence of multiple species and on this topic later lecture Darwin seems to have modified slightly in the original colonizer, perhaps the finch in South America, 600 miles east of the east.