biodiverisdad

conforman,resultado de miles de años de evolucion según procesos naturales y la influencia del ser humano.
La biodiversidad comprende igualmente al variedad del ecosistema y las grandes diferencias genéticas dentro de cada especie que permiten las múltiples formas de vida y muchas interacciones con el resto del entrono , el sustento de la vida en el planeta.isdqiophdiowqdddddhioóóooooooooooooooooooooooooooooihdwqoóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóóó´hdiwooooooooooooooooooooohdbyheeeeeeeeeeeeeeeeeeeeeeeeeeeeee-
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jjjjjjjjjuijjjjjjjjjjjjjjjjjjjjjjjOrigen y evolución del término[editar]

Diversas especies epifitas en una selva de AméricaCentral (Costa Rica). Los ecosistemas de la zona intertropical son el hogar de la mayor parte de la biodiversidad mundial actual.
Según la RAE, el término biodiversidad define la “Variedad de especies animales y vegetales en su medio ambiente”3

Sin embargo el concepto, por su carácter intuitivo, ha presentado ciertas dificultades para su definición precisa, tal como señaló Fermín Martín Piera4al argumentar que el abuso en su empleo podría vaciarlo de contenido, ya que en sus palabras: suele acontecer en la historia del pensamiento que los nuevos paradigmas conviven durante un tiempo con las viejas ideas, considerando junto a otros autores que el concepto de biodiversidad fue ya apuntado por la propia teoría de la evolución.

A principios del siglo XX, los ecólogos Jaccard y Gleasonpropusieron en distintas publicaciones los primeros índices estadísticos destinados a comparar la diversidad interna de los ecosistemas. A mediados del siglo XX, el interés científico creciente permitió el desarrollo del concepto para describir la complejidad y organización, hasta que en 1980, Thomas Lovejoy propuso la expresión diversidad biológica.5

Definición[editar]
Si en el campo de labiología la biodiversidad se refiere al número de poblaciones de organismos y especies distintas, para los ecólogos el concepto incluye la diversidad de interacciones durables entre las especies y su ambiente inmediato o biotopo, el ecosistema en que los organismos viven. En cada ecosistema, los organismos vivientes son parte de un todo actuando recíprocamente entre sí, pero también con el aire,...