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Secondary resource type is Case study
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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 07 of 22

A meadow with thousands of plants of Helianthella quinquenervis (aspen sunflower, Asteraceae) at peak bloom. This species is a common long-lived perennial plant in meadows near the Rocky Mountain...

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 08 of 22

Photo of a meadow with thousands of Helianthella quinquenervis (aspen sunflower, Asteraceae) plants. In the year that this photo was taken, a springtime frost killed all but a few flower buds....

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 10 of 22

The number of flowers produced by the aspen sunflower (Helianthella quinquenervis) in a particular year is affected by the date of the start of the growing season, which is in turn influenced by the...

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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 16 of 22

Buds of Delphinium barbeyi (tall larkspur, Ranunculaceae) killed by a late season frost. In those years, the larkspur suffers reproductive failure, affecting animal species that rely on them for...

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 17 of 22

The glacier lily (Erythronium grandiflorum) is one of the earliest wildflowers to bloom after snowmelt in the Rocky Mountains. Its ovaries and seeds are sensitive to late-season frosts. But...

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http://www.amjbot.org/content/97/9/1431.full
View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 18 of 22

A queen bumble bee (Bombus bifarius) foraging for nectar on a flower of Erythronium grandiflorum (glacier lily). This flower has frost-sensitive ovaries. Bumble bee queens and hummingbirds are...

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 19 of 22

Example of a frost-killed ovary (on left) and a normally developing fruit (on right) of Erythonium grandiflorum, the glacier lily. The two plants were selected to show the difference, and weren't...

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View Resource Effects of frost on wildflowers: an unexpected consequence of climate change--image 20 of 22

A Mormon fritillary butterfly (Speyeria mormonia) visiting flowers of the fleabane daisy (Erigeron speciosus), an important and preferred nectar resource. Flower buds of E. speciosus are...

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http://onlinelibrary.wiley.com/doi/10.1111/j.1461-0248.2012....
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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