Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Conservation of Declining Populations02:07

Conservation of Declining Populations

12.5K
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.
12.5K
What is Climate?01:16

What is Climate?

20.4K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
20.4K
Threats to Biodiversity01:50

Threats to Biodiversity

26.5K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
26.5K
Global Climate Change01:50

Global Climate Change

28.7K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
28.7K
Generalization, Discrimination, and Extinction01:24

Generalization, Discrimination, and Extinction

1.3K
Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
1.3K
Habitat Fragmentation02:31

Habitat Fragmentation

20.9K
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.
20.9K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Effect of Bean-Derived Soluble Dietary Fibers on Macrophage Function In Vitro.

Foods (Basel, Switzerland)·2026
Same author

NAMPHORA: a fossil and modern pollen database from Northern Africa and adjacent Mediterranean and Arabian regions.

Scientific data·2026
Same author

Black Death Land Abandonment Drove European Diversity Losses.

Ecology letters·2026
Same author

Life on New Earth: biodiversity change and humanity in a novel future.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026
Same author

The Greatest Extinction Event in 66 Million Years? Contextualising Anthropogenic Extinctions.

Global change biology·2025
Same author

Many non-native plant species are threatened in parts of their native range.

The New phytologist·2025
Same journal

Daily briefing: How cooperation built the world.

Nature·2026
Same journal

Deep-sea oddities and boatloads of other new species - June's best science images.

Nature·2026
Same journal

From cloning to gene-editing: the enduring legacy of Dolly the sheep.

Nature·2026
Same journal

Time to give hydration breaks the red card? What science says about keeping cool.

Nature·2026
Same journal

Universities are relying on AI-detection software to catch cheating. How well do the programs work?

Nature·2026
Same journal

Daily briefing: 'Cyborg' cockroaches breathe underwater with printed suit.

Nature·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Jan 10, 2026

Author Spotlight: Advancing Coral Culture - Creating a Semi-Quantitatively Controlled Microenvironment System to Counter Current Limitations
05:58

Author Spotlight: Advancing Coral Culture - Creating a Semi-Quantitatively Controlled Microenvironment System to Counter Current Limitations

Published on: July 21, 2023

2.5K

Extinción y cambio climático.

Chris D Thomas1, Mark Williamson

  • 1Department of Biology, University of York, Heslington, York, YO10 5DD, UK. chris.thomas@york.ac.uk

Nature
|February 24, 2012
PubMed
Resumen
Este resumen es generado por máquina.

Las relaciones especie-área (SAR) pueden sobreestimar los riesgos de extinción. Este estudio sostiene que las relaciones entre endemias y áreas (EAR) son más apropiadas para evaluar la pérdida de biodiversidad por el hábitat y el cambio climático, desafiando las afirmaciones anteriores.

Más Videos Relacionados

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
07:54

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

3.3K
Extinction Training During the Reconsolidation Window Prevents Recovery of Fear
11:17

Extinction Training During the Reconsolidation Window Prevents Recovery of Fear

Published on: August 24, 2012

36.1K

Videos de Experimentos Relacionados

Last Updated: Jan 10, 2026

Author Spotlight: Advancing Coral Culture - Creating a Semi-Quantitatively Controlled Microenvironment System to Counter Current Limitations
05:58

Author Spotlight: Advancing Coral Culture - Creating a Semi-Quantitatively Controlled Microenvironment System to Counter Current Limitations

Published on: July 21, 2023

2.5K
Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
07:54

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

3.3K
Extinction Training During the Reconsolidation Window Prevents Recovery of Fear
11:17

Extinction Training During the Reconsolidation Window Prevents Recovery of Fear

Published on: August 24, 2012

36.1K

Área de la Ciencia:

  • Ecología Ecología Ecología.
  • Biodiversidad Ciencia Ciencia de la biodiversidad.
  • Biología de la Conservación Biología de la Conservación.

Sus antecedentes:

  • Las relaciones especie-área (SAR) se utilizan comúnmente para estimar los riesgos de extinción debido a la pérdida de hábitat o el cambio climático.
  • Él y Hubbell (2011) propusieron usar relaciones endémicas-área (EAR) en lugar de SAR, lo que sugiere que las estimaciones basadas en SAR son demasiado altas.

Objetivo del estudio:

  • Evaluar críticamente la metodología y las conclusiones presentadas por He y Hubbell (2011) con respecto a los SAR y EAR para la evaluación del riesgo de extinción.
  • Para demostrar que las estimaciones SAR del riesgo de extinción no son necesariamente sesgadas y que los datos empíricos utilizados por He y Hubbell pueden ser inapropiados para su análisis.

Principales métodos:

  • Reevaluación de los métodos estadísticos utilizados en los análisis de la relación especie-área (SAR).
  • Análisis de datos empíricos sobre la distribución de las especies y el área del hábitat.
  • Comparación de las estimaciones del riesgo de extinción derivadas de las SAR frente a las relaciones endémicas-área (EAR).

Principales resultados:

  • Las estimaciones SAR del riesgo de extinción son potencialmente sesgadas y no son inherentemente demasiado altas.
  • Los datos empíricos utilizados por He y Hubbell no son adecuados para robustos cálculos de riesgo de extinción.
  • Los argumentos anteriores que sugieren menores riesgos de extinción por el cambio climático son erróneos, ya que las respuestas de las especies indican riesgos futuros significativos.

Conclusiones:

  • Los SAR siguen siendo una herramienta válida para evaluar los riesgos de extinción, contrariamente a las afirmaciones de He y Hubbell.
  • Las especies ya están exhibiendo respuestas al cambio climático consistentes con riesgos sustanciales de extinción futura.
  • Una evaluación precisa de la pérdida de biodiversidad requiere una cuidadosa consideración de la metodología y los datos empíricos apropiados.