Related Experiment Video
Updated: Feb 8, 2026
07:46
Using the Activity-based Anorexia Rodent Model to Study the Neurobiological Basis of Anorexia Nervosa
Published on: October 22, 2015
15.1K
Activity restriction and the mechanistic basis for extinctions under climate warming
1Department of Zoology, The University of Melbourne, Parkville, VIC, 3010, Australia.
Ecology Letters
|October 15, 2013
Summary
Climate warming may not cause extinctions solely by restricting lizard activity. Loss of shade is a more likely driver, highlighting the need for detailed habitat and life history data in extinction risk forecasts.
Area of Science:
- Ecology and evolutionary biology
- Climate change biology
- Physiological ecology
Background:
- Anthropogenic climate warming is predicted to cause widespread extinctions.
- Warming-induced activity restriction is a proposed mechanism for recent lizard extinctions.
- Forecasting future extinction risk requires understanding the generality of extinction mechanisms.
Discussion:
- Thermodynamic niche analyses challenge the generality of activity restriction as a primary driver of climate-induced extinctions.
- Loss of shade emerges as a more plausible explanation for observed population declines.
- Climate warming can impact populations through effects on fecundity and mortality, independent of activity potential.
Key Insights:
- Activity restriction from warming is unlikely to be a universal mechanism for extinction.
- Shade availability is a critical factor in predicting extinction risk.
- Mechanistic forecasts must integrate behavioral, habitat, and life-history traits.
Outlook:
- Future extinction risk assessments require nuanced, mechanistic models.
- Understanding species-specific responses to climate change is crucial.
- Conservation strategies must consider microhabitat characteristics like shade.
Related Concept Videos
01:16What is Climate?
20.9K
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.
20.9K
01:29Cardiomyopathy IV: Restrictive Cardiomyopathy
566
Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
566
01:50Global Climate Change
29.0K
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.
29.0K
01:24Generalization, Discrimination, and Extinction
1.4K
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...
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...
1.4K
01:11Restriction Enzymes
36.2K
Restriction enzymes are bacterial enzymes used to cut DNA in a sequence-specific manner. To cleave DNA, they bind to specific palindromic sequences called restriction sites. Such palindromic DNA sequences or inverted repeats are commonly found in regions of functional significance, such as the origin of replication, gene operator sites, and regions containing transcription termination signals.
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
36.2K
01:21Mechanistic Models: Overview of Compartment Models
385
Mechanistic models, a category encompassing both physiological and compartmental modeling, differ from empirical models' approaches to incorporating known factors about the systems being modeled. Empirical models describe data with minimal assumptions, while mechanistic models aim to provide a robust description of available data by specifying assumptions and integrating known factors about the system. Compartmental analysis is a key example of a mechanistic model in pharmacokinetics and...
385