Red Knots (Calidris canutus) feed on bivalves that live buried in mud. Using their smart bill tip, Red Knots are able to find such hard-shelled prey very efficiently. Red Knots are highly gregarious,...
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In this TIEE experiment, students investigate the costs of reproduction. In dioecious plants, a female's investment in reproduction is typically much greater than a male's, because while both sexes...
Given the expense, time and considerable teacher effort required to perform hands-on activities in the classroom, their consequences for student learning need to be evaluated. This study takes one...
A bark scorpion (Centroides sp., green in the photograph) is pictured in an oval of ultraviolet light (purple in the photograph), demonstrating a unique method for studying scorpions in their native...
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This photograph compares the ventral wings of two individual butterflies of the same species (Bicyclus anynana) that matured during different seasons of the year. The wing on the left is produced...
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I use this image in my junior level ecology class
in the unit on physiological ecology to illustrate the evolution of organismal design. I show the image and tell them who the critter is and what...
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Long-toed salamanders (Ambystoma macrodactylum) exhibit a wide diversity of limb and digit malformations following injury and infection by a trematode parasite (Ribeiroia ondatrae). A recent study...
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In this TIEE dataset, students answer the question of whether nutrient cycling (excretion) rates of fish in lakes scale with body size and temperature as predicted by The Metabolic Theory of...
This laboratory exercise examines the response of native birds to different frequencies of a mimic species while holding the other two parameters constant - the degree of distastefulness and the...
This article illustrates how multiple methods can be used to assess student understanding of the “novel weapons hypothesis” presented in the Callaway and Ridenour review of theories regarding...
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