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Ecological Core Concept is Populations -- Population growth and regulation

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		*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...	You must be logged in to access all resource information.	More Info

		A Generally Accessible Derivation of the Golden Rule of Bioeconomics This article provides formulas to understand the bioeconomics of world fishery harvesting.		More Info

		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....	You must be logged in to access all resource information.	More Info

		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...	You must be logged in to access all resource information.	More Info

		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		More Info

		*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...	You must be logged in to access all resource information.	More Info

		*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 petrel’s population growth rate to...	You must be logged in to access all resource information.	More Info

		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...		More Info

		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,...	You must be logged in to access all resource information.	More Info

		Effects of frost on wildflowers: an unexpected consequence of climate change--image 02 of 22 An example of a late spring frost and snow event at the Rocky Mountain Biological Laboratory, at 9,500 feet in the Colorado Rocky Mountains. This photograph was taken on 13 June 2001, when the...	You must be logged in to access all resource information.	More Info

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