By Akasha M. Faist Department of Ecology and Evolutionary Biology University of Colorado, Boulder, CO NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE.

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Presentation transcript:

by Akasha M. Faist Department of Ecology and Evolutionary Biology University of Colorado, Boulder, CO NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE Grazing in Vernal Pools: Restoration Management Decisions Day 1 Presentation

Class Structure 2 1.Brief lecture on what vernal pools are and why they are important. 2.Work to identify the ecological pros and cons of grazing in vernal pools. 3.Develop an argument for or against grazing. 4.Present the argument. 5.Discuss what is happening in the “real world.”

Learning Goals 3 1.Use evidence to construct an argument. 2.Compare and contrast ecological studies asking similar questions in the same system. 3.Use vernal pool ecological relationships to help make land management decisions. 4.Identify and work through biases to reach a management decision.

Vernal Pools 4

What Are Vernal Pools? 5

California Vernal Pools 6 Annual cycle Winter Summer-Fall Spring

Winter Wet Phase 7 Pools filled with water from precipitation; plants in small germinant state under water.

Spring Flowering Phase 8 Spring flowers follow the receding water line.

Summer Dry Phase 9 Plants are mostly dormant waiting for the winter rains.

Many Endangered and Endemic Species 10

California Population Densities Common vernal pool habitat 1

Vernal Pool Habitat Loss 12 Agriculture Land development Climate change

Cattle Grazing 13

Restoration Needed 14

Should grazing be added to the management plan? + =?=? 15

16 Image Credits Slide 1: Photo Credit: Akasha Faist. Slide 4: Photo Credit: Sharon Collinge. Slide 5: Photo Credits: Sharon Collinge. Slide 6: vernal pools 2” Slide 8: "Vernal pool in spring“ By USFWS [Public domain], via Wikimedia Commons “Vernal Pool” Slide 9: Photo credit: Sharon Collinge. Slide 10: “Endangered species”: California tiger salamander, By John Cleckler [Public domain], via Wikimedia Commonshttps://upload.wikimedia.org/wikipedia/commons/c/ce/California_Tiger_Salamander.jpg; “Pogogyne douglasii” By Stickpen (Own work) [CC0], via Wikimedia Commons, “Vernal Pool fairy shrimp” By Pacific Southwest Region (Flickr: Vernal Pool fairy shrimp) [CC BY 2.0 ( via Wikimedia Commons ( “Downingiayina” See page for author [Public domain], via Wikimedia Commons Slide 11: “California Population map” See page for author [Public domain], via Wikimedia Commons Slide 12: “California farm” Richard Croft [CC BY-SA 2.0 ( via Wikimedia Commons, “Darnestown, MD farm panorama”, By Flickr user: Jeff Turner Grafton [CC BY 2.0 ( via Wikimedia Commons. ( Slide 13: “NRCSA01033-California” Gary Kramer / Photo courtesy of USDA Natural Resources Conservation Service., via Wikimedia Commons. Slide 14: Photo Credit: Akasha Faist Slide 15: “NRCSA01033-California” Gary Kramer / Photo courtesy of USDA Natural Resources Conservation Service., via Wikimedia Commons. Photo credit: Akasha Faist.