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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 most years, and the overall population seems to be declining. The lack of seedlings in most years is a consequence of frost damage to flower buds the previous year (so no seeds were produced). The population decline is an apparent consequence of reduced seed production.
Temporal and geographic description Data for Helianthella quinquenervis (aspen sunflower, Asteraceae) in a demography study at the Rocky Mountain Biological Laboratory, Colorado.
Legend (figures or tables) Number of individuals of Helianthella quinquenervis in demography plots at the Rocky Mountain Biological Laboratory. The number of seedlings each year is shown in blue and the number of older individuals is in tan.
Resource Group A slide show about the effects of frost on Colorado wildflowers at the Rocky Mountain Biological Laboratory.
Resource Group Link
Special Collection
Primary or BEN resource type
Secondary resource type
Discipline Specific Core Concepts
Life science discipline (subject)
Keywords demography, seedling
Intended End User Role
Educational Language
Pedagogical Use Category
Pedagogical Use Description The slide show could be used as part of a lecture on the consequences of climate change, or the ecology of the Rocky Mountains.
Uniqueness A common wildflower in the Colorado Rocky Mountains, but an unusually long-term demographic study.
Aggregation Level
Full Name of Primary Author David W. Inouye
Primary Author Controlled Name
Primary Author Affiliation Dept. of Biology
University of Maryland
College Park, MD 20742-4415
Primary Author email
Secondary Author Email(s)
Added By Id
  • dwinouye
Submitter Name David Inouye
Submitter Email
Rights Free use with attribution. Contact photographer if you want a higher-resolution version. And contact author if you'd like a single file with all the slides so you don't have to download them one at a time (this capability may be added to EcoEd in the future).
Review type
Drought and Water Ecosystem Services Collection Off
Conservation Targets Under Global Change Collection On
Big Data Collection Off
Editors Choice No
Resource Status
Date Of Record Submission 2011-12-01
I Agree to EcoEdDL's Copyright Policy & Terms of Use No
Date Of Record Release 2012-01-04 09:19:45
Last Modified By Id
  • mcmilla
Date Last Modified 2013-04-01 21:15:04
Release Flag Published

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