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(4 classifications) (16 resources)

Ecological Core Concepts -- Populations

Discipline Specific Core Concepts Classifications
Density and distribution (43)
Genetic and phenotypic diversity (18)
Life history traits and reproduction (21)
Population growth and regulation (50)

Resources
View Resource A herd of alpine ibex (Capra ibex) struggling to move through deep snow.

A herd of alpine ibex (Capra ibex) struggles through deep snow. A recent study examined 45 years of census data for a population of alpine ibex in Gran Paradiso National Park in northwestern Italy. Researchers found that in the absence of natural predators and human hunting, density dependence and the severity of winter weather limit the populationís size. Severe winter weather affects populatio...

 

Publisher: EcoEd Digital Library

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http://www.esajournals.org/toc/ecol/85/6
View Resource A juvenile Marbled Murrelet (Brachyramphus marmoratus) sits on its nest platform high in an old-growth Douglas fir.

A juvenile Marbled Murrelet (Brachyramphus marmoratus) sits on its nest platform high in an old-growth Douglas fir. The Marbled Murrelet is an endangered seabird. A recent study used age-ratio analysis of museum specimens collected from 1892-1922 to measure long-term demographic changes in this species. Researchers compared the long-term demography with contemporary estimates and predictions from...

 

Publisher: EcoEd Digital Library

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View Resource A Bearded Vulture (Gypaetus barbatus), a threatened species.

The Bearded Vulture (Gypaetus barbatus) is a threatened species. Many conservation programs aim to increase population size by improving survival and reproduction; however, density dependence may confound this approach. A recent study evaluated the consequences of population growth on reproductive performance of Bearded Vultures in the Spanish Pyrenees, and its results suggest that the use of...

 

Publisher: EcoEd Digital Library

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View Resource The Insect Predation Game: Evolving Prey Defenses and Predator Responses

In this activity, learn about predator-prey interactions by pretending to be generalist insect predators foraging for three prey species (candy). Three feeding adaptations are used (mandibles, raptorial forelegs, and unmodified legs). Students conduct several simulations, each of which lasts about a minute. After each simulation, prey reproduce and predator numbers are adjusted to reflect...

 

Publisher: EcoEd Digital Library

View Resource Evaluating a Multi-Component Assessment Framework for Biodiversity Education

The Network of Conservation Educators and Practitioners (NCEP) is a global initiative that seeks to create opportunities for the broad exchange of educational and training information and strategies among conservation educators and practitioners. The lack of access to such resources is a significant obstacle to building capacity in biodiversity conservation. To expand teaching resources and...

 

Publisher: EcoEd Digital Library

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