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Tpn 9 poblaci n conceptos eco 4

Tpn 9 poblaci n conceptos eco 4

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Colegio San Juan Bautista

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Ecología 4° año TT y TM

Eje temático N°2: Poblaciones

Tema: Población: conceptos

Objetivo: Interpretar conceptos de especie y población.

Análisis de la estructura de la población.

“Cada una de las especies que habitan el planeta se encuentra distribuida en él y conforma

poblaciones. Dentro de cada población, los individuos pueden cruzarse y dejar descendencia

fértil; el libre flujo genético entre ellos a lo largo de las generaciones da como resultado la

existencia de ciertas características que pueden ser favorables para su adaptación al ambiente;

esas características pueden sufrir modificaciones en el transcurso de la evolución.

El comportamiento de las poblaciones es dinámico. Para describir la situación de una población en

un momento dado y predecir posibles cambios en ella, es necesario conocer el tamaño

poblacional, la densidad y todos los parámetros que lo modifican, como la natalidad, la mortalidad

y las migraciones”

Partimos este nuevo tema con el texto presentado, el cuál guarda mucha información que

sintetiza los contenidos que vamos a desarrollar en este eje temático.

Act.N°1: Te invito a:

Buscar el significado de los conceptos resaltados en amarillo y registrarlo a continuación.

Act.N°2: Distribución de la población

SI

NO

Factores que inciden

en la distribución

de las poblaciones

Con simples palabras redactes un pequeño texto que refleje lo que te significa el diagrama,

utilizando los conceptos del texto anterior.

La causa de la

ausencia de una

especie en una región

es…..

¿Dispersión?

Región inaccesible

Otros factores

Conducta de selección

de hábitat

Otras especies (predadoras,

parasitismo, competencia)

Factores físicos y químicos

(temperatura, luz, agua,

oxígeno, salinidad, etc.

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Ecología 4° año TT y TM Eje temático N°2: Poblaciones Tema: Población: conceptos Objetivo: Interpretar conceptos de especie y población. Análisis de la estructura de la población. “Cada una de las especies que habitan el planeta se encuentra distribuida en él y conforma poblaciones. Den ...
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