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Videos de Conceptos Relacionados

What is Conservation Biology?01:57

What is Conservation Biology?

Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.
Conservation of Declining Populations02:07

Conservation of Declining Populations

Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
Sustainable Development01:43

Sustainable Development

As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
Conservation of Small Populations02:04

Conservation of Small Populations

Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less likely to...
Habitat Fragmentation02:31

Habitat Fragmentation

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
Ecological Niches02:02

Ecological Niches

All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.Multiple species cannot occupy the exact same niche within their habitat. If the niches of two or more species overlap to a large extent, the competitive exclusion principle dictates that one species will outcompete the other, forcing it to...

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Ecosystem-service science and the way forward for conservation.

Conservation biology : the journal of the Society for Conservation Biology·2008
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Skin grafts and cheetahs.

Nature·1996
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Conservation: tactics for a constant crisis.

Science (New York, N.Y.)·1991
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Island lizards: the genetic-phenetic variation correlation.

Nature·1973

Video Experimental Relacionado

Updated: Jul 12, 2026

At-Risk Butterfly Captive Propagation Programs to Enhance Life History Knowledge and Effective Ex Situ Conservation Techniques
07:10

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Published on: February 11, 2020

Ecología: Objetivos de conservación: ¿Ayudan?

M E Soulé, M A Sanjayan

    Science (New York, N.Y.)
    |August 31, 2007
    PubMed
    Resumen
    Este resumen es generado por máquina.

    Los esfuerzos actuales de conservación protegen sólo el 5% de la tierra global, insuficiente para la supervivencia de la biodiversidad. Se necesitan cambios políticos urgentes para evitar la extinción masiva de especies debido a la pérdida de hábitat.

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    Área de la Ciencia:

    • Ciencias de la Conservación Ciencias de la Conservación.
    • Ecología Ecología Ecología.
    • Estudios de la biodiversidad Estudios de la biodiversidad.

    Sus antecedentes:

    • Un área de tierra limitada (≤5%) está designada para la protección de la naturaleza a nivel mundial.
    • La supervivencia de la biodiversidad tropical es cuestionable fuera de las reservas protegidas.
    • Los objetivos de conservación existentes (por ejemplo, protección del 10% del territorio) son inadecuados.

    Objetivo del estudio:

    • Evaluar la eficacia de las políticas actuales de protección de la tierra en la preservación de la biodiversidad global.
    • Para resaltar la discrepancia entre los objetivos de conservación y los requisitos ecológicos para la supervivencia de las especies.

    Principales métodos:

    • Análisis de la asignación global de área de tierra para la conservación.
    • Revisión de los datos ecológicos sobre la alteración del hábitat y la pérdida de especies.
    • Evaluación de las recomendaciones actuales de la política internacional de conservación.

    Principales resultados:

    • Las actuales tierras protegidas (≤5%) son insuficientes para salvaguardar la biodiversidad global.
    • El consenso ecológico indica que el 90% de la alteración del hábitat conduce al 50% de la pérdida de especies.
    • Las políticas existentes son insuficientes para evitar una crisis de biodiversidad.

    Conclusiones:

    • Las actuales políticas de conservación no están logrando prevenir la pérdida masiva de biodiversidad.
    • Se requiere un aumento significativo en el hábitat protegido para mitigar la extinción de especies.
    • Es necesaria una reforma política urgente para hacer frente a la creciente crisis de la biodiversidad.