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Audience is Undergraduate upper division 15-16

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		Degradation of a Tropical Stream [resource folder] A series of photographs showing the widening of a road that then caused an increase in the sediment load in the streams below the road. The photographs show the road and the surrounding tropical...		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

		Demography from physical cemeteries, "virtual cemeteries," and census data In this exercise, students will use data concerning lifespan and demography to generate graphs, compare the survivorship curves of two cohort groups with Logrank (Mantel-Cox) tests, and explain the...	You must be logged in to access all resource information.	More Info

		Desert star (Monoptilon bellioides) flowers in bloom. Desert star (Monoptilon bellioides) flowers in bloom. Desert star is an annual plant that grows in very arid regions of the southwestern United States. Desert star and other desert annuals may delay...	You must be logged in to access all resource information.	More Info

		Do Antbirds Help or Hinder Army Ants? In this activity, students examine the nature of the interaction between army ants and ant-following birds. Ant-following birds benefit from the relationship by staying just ahead of the ants and...		More Info

		Drivers of Avian Local Species Richness: Continental-Scale Gradients, Regional LAndscape, or Local Land Cover? Students use data to test hypotheses on breeding bird species richness. Students will exercise critical thinking skills to interpret data sets and maps. They will then create graphic presentations...		More Info

		Drought in East Africa These Landsat images show Kenya’s Masai Mara Reserve on December 4, 1994, a year with normal rainfall, and November 27, 2009, a year when the rains failed and a severe drought overtook the land. The...	You must be logged in to access all resource information.	More Info

		Dry rivers, vibrant with culture and life: Press release A press release for an article addressing the benefits of dry river beds. This article also explores how human manipulation of seasonal water sources for land use disrupts the natural cycle necessary...		More Info

		Ecological Impacts of High Deer Densities This Figure Set explores the complexity of forest ecosystems with particular emphasis on the effects of expanding white-tailed deer (Odocoileus virginianus) populations on trees, birds, and people....		More Info

		Ecology as a Way of Knowing This article, originally published in the Ecology 101 section of the Bulletin of the ESA, focuses on the macro and micro issues that shape introductory ecology courses for undergraduates. It also...		More Info

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