The introduction of exotic spicies species in America

The introduction of vegetable species and exotic animals, from (mostly) Europe, were modified the naturals landscape of the territory. The crops and the animals (slowly or faster) <--pick one, were taking the spaces who where occupied native crops occupied like: corn, potatoes, chili, quinoa (pseudocereal used as flour) and the native animal husbandry disappeared in the face of predominance of horses, sheeps, lambs and cattle. (suggestion: as horses, sheeps, lambs, and cattle predominated.)

In fact, from the beginning, one of the conqueror's interest was having growing food in the American colonies the food they were used. That motivied motivated the transfer of plants and animals to the new continent, since the second voyage of Colombus. He transforming transformed his ships in a sort of Noah's arc, whose getaways decline by to the American's beach grains and multiple animals.   (no entiendo lo que quieres decir en este parte...)

The diverse species of European exotics animals and vegetables were introduced with varying luck (degrees of success) in American landscapes. They were unsuccessful especially in their attempt to acclimate the basic products of hispanic feeding of the time: bread, wine and olive oil.

America became a huge in a hug field of experiment in the search of grounds and climates conducive to the breeding of Mediterranean animals and plants. 

¡Hola mundo!

Hola, soy Elaine, una estudiante de matemáticas en los Estados Unidos. Nací en Beijing pero desde el año 2000 vivo en la ciudad Nueva York. Por eso, puedo hablar Mandarin y Inglés con más facilidad. He estado aprendido español por siete años, más o menos, en la escuela. Pero ahora, no tengo más clases de español y es muy difícil mantener el nivel de fluidez que tuve. Por eso, sé que necesito hacer esfuerzos con mi tiempo libre. Y aquí estoy.

Puede corregir cualquiera parte si hay errores en gramática o vocabulario. ¡Gracias!