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Ecological Core Concepts -- Populations -- Population growth and regulation

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View Resource A female rotifer (Brachionus calyciflorus) with two eggs

A female rotifer (Brachionus calyciflorus) with two eggs. The eggs are the result of parthenogenesis, or asexual reproduction by the female, which occurs in rotifers when growing conditions are...

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http://www.esajournals.org/doi/abs/10.1890/04-1400
View Resource A Generally Accessible Derivation of the Golden Rule of Bioeconomics

This article provides formulas to understand the bioeconomics of world fishery harvesting.

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....

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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...

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View Resource A Simple Equation for Presenting Reproductive Value to Introductory Biology and Ecology Classes

This article provides a reproductive value equation, along with a hypothetical life table, for teachers of introductory biology and ecology classes

View Resource African buffalo (Syncerus caffer) in the bovine tuberculosis control program at Hluhluwe-iMfolozi Park, South Africa.

The African buffalo (Syncerus caffer) population in the bovine tuberculosis (bTB) control program at Hluhluwe-iMfolozi Park, South Africa was studied in 2000-2001 to investigate how chronic infection...

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http://www.esajournals.org/doi/abs/10.1890/05-0038
View Resource An adult snow petrel (Pagodroma nivea) roosts on its nest among boulders in Antarctica.

The population dynamics of the snow petrel (Pagodroma nivea) were studied over 40 years in order for scientists to better understand the sensitivity of the petrelís population growth rate to...

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http://www.esajournals.org/doi/abs/10.1890/05-0514
View Resource Demographic vital rates and population growth: an introduction to projection matrices and elasticity analysis

In this TIEE dataset, students address the question of how changes in demographic vital rates influence the rate of population growth. Students learn how projection matrices and elasticity...

http://tiee.esa.org/vol/v7/issues/data_sets/conard/abstract....
View Resource Effects of frost on wildflowers: an unexpected consequence of climate change [resource group]

A collection of slides about the effects of frost on Colorado wildflowers at the Rocky Mountain Biological Laboratory (RMBL). RMBL is a high-altitude field research station at 9,500 feet in the...

http://ecoed.esa.org/index.php?P=AdvancedSearch&Q=Y&FK=%22Ef...
View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 01 of 22

A view of the Rocky Mountain Biological Laboratory, a high-altitude field research station at 9,500 feet in the Colorado Rocky Mountains. RMBL has supported field work since it was founded in 1928,...

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