Video Experimental Relacionado

Updated: Jun 5, 2025

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

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

Published on: July 21, 2023

Extinciones por el cambio climático

Mark C Urban^1,2,3

¹Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA.

Science (New York, N.Y.)

|December 5, 2024

Resumen

El cambio climático acelerará la extinción de especies, especialmente si las temperaturas globales superan los 1,5°C. Esto amenaza a un tercio de todas las especies, lo que pone de relieve la necesidad urgente de esfuerzos de conservación.

Área de la Ciencia:

Ecología
Ciencias del clima
Biología de la conservación

Sus antecedentes:

El cambio climático plantea riesgos significativos, aunque inciertos, para la biodiversidad mundial.
La predicción de la vulnerabilidad de las especies a los cambios climáticos es crucial para una conservación efectiva.

Objetivo del estudio:

Realizar una evaluación global cuantitativa de las extinciones provocadas por el cambio climático.
Sintetizar las investigaciones y proyecciones existentes para un análisis exhaustivo.

Principales métodos:

Metaanálisis de 485 estudios.
Inclusión de proyecciones de más de 5 millones de especies.

Principales resultados:

Se proyecta que las tasas de extinción se acelerarán significativamente más allá del calentamiento de 1,5 ° C.
Los escenarios de emisión más altos podrían poner en peligro aproximadamente un tercio de las especies de la Tierra.
Los anfibios, las especies de montaña / isla / agua dulce y las de América del Sur, Australia y Nueva Zelanda son los más vulnerables.
La contribución del cambio climático a las extinciones observadas ha aumentado desde 1970.

Conclusiones:

La mitigación urgente de los gases de efecto invernadero es esencial para evitar extinciones masivas.
Las estrategias de conservación específicas son fundamentales para proteger a las especies vulnerables durante la crisis climática.
Detener y revertir el cambio climático antropogénico es fundamental para la preservación a largo plazo de la biodiversidad.

Más Videos Relacionados

Using Generative Art to Convey Past and Future Climate Transitions

Using Generative Art to Convey Past and Future Climate Transitions

Published on: March 31, 2023

Impedance Pneumography for Minimally Invasive Measurement of Heart Rate in Late Stage Invertebrates

Impedance Pneumography for Minimally Invasive Measurement of Heart Rate in Late Stage Invertebrates

Published on: April 4, 2020

Videos de Conceptos Relacionados

Global Climate Change

Global Climate Change

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.

Threats to Biodiversity

Threats to Biodiversity

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...

The Fossil Record

The Fossil Record

The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...

What is Climate?

What is Climate?

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.

Conservation of Declining Populations

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.

Habitat Fragmentation

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.