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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...

View Resource Nitrogen biogeochemistry of headwater catchments underlain by discontinuous permafrost

In this TIEE data set, students answer the question of what influences flux of nitrogen from catchments underlain by discontinuous permafrost. Students work with a large dataset describing...

View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 05 of 22

A flowering plant of Helianthella quinquenervis (aspen sunflower, Asteraceae) at the Rocky Mountain Biological Laboratory(RMBL). This species has flower buds that are frost-sensitive. The plants have...

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View Resource Juvenile loggerhead sea turtle (Caretta caretta) in a plastic pail in South Carolina

Juvenile loggerhead sea turtle (Caretta caretta) in a plastic pail in South Carolina. Loggerheads are an endangered species, populations of which are declining in part due to human interference with...

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View Resource Enhancing science teachers' understanding of ecosystem interactions with qualitative conceptual models

The project described in this article explores how a series of conceptual ecological models can be used to portray the improvement in ecological understanding over the span of a short course. The...

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