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Audience is Undergraduate lower division 13-14
Results 151 - 155 of 395
View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 14 of 22

A female broad-tailed hummingbird (Selasphorus platycercus) in Colorado visiting tall larkspur (Delphinium barbeyi). The hummingbirds migrate north from Mexico each spring. Larkspurs serve as an...

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 15 of 22

Photo of an early-stage inflorescence of tall larkspur (Delphinium barbeyi) after a mid-June snowstorm at the Rocky Mountain Biological Laboratory. The buds were killed by the cold temperature. Like ...

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 12 of 22

Excavated plants of Helianthella quinquenervis (aspen sunflower, Asteraceae). H. quinquenervis is a long-lived perennial (some individuals can live 50-75 years). Note that each plant has multiple...

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 11 of 22

Results of a demographic study of Helianthella quinquenervis (aspen sunflower, Asteraceae) within plots at 2,900m at the Rocky Mountain Biological Laboratory. Note that seedlings are not common in...

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 21 of 22

A graph (modified from Boggs and Inouye 2012, Ecology Letters) demonstrating that Speyeria mormonia (Mormon fritillary) butterfly visits are proportionally greater when their food plant, Erigeron...

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