Winter Ecology -

PREVIOUS YEARS' INDIVIDUAL PROJECT PRESENTATIONS -

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by Topic -
I.
Winter Physical Processes
II.
Fungi Winter Ecology
III.
Vegetation Winter Processes
IV.
Ecosystem and Landscape Processes in Winter
V.
Arthropod Winter Ecology
VI.
Fish Winter Ecology
VII.
Mammal Winter Ecology
VIII.
Bird Winter Ecology
Also search by Keywords



I. Winter Physical Processes
 
Year Presenter
Project [file access, size]
*=field project
Keywords
2006 Jyh-How Huang * Snow as a Conducting Media for Temperature. [ppt, 2M] snowpack: temperature
2008 Derek Sweeney * Impact of Recreational Snow Compaction on Small Mammals in the Subnivean Space [ppt, 5M] snowpack: compression; human impact: skiing; mammal habitat
2009 Jason Blair
Avalanches:  Disaster or Miracle? A Changing Ecological Effect [ppt, 1M] snowpack: avalanche; vegetation biodiversity, habitat; climate change 
2010 David Olson * Influences of Stationary Objects on Winter Subnivean Micro-Environments [ppt, 1M] snowpack: temperature, density; rocks, tree trunks

Brittany Engleking * Natural Snowpack vs. Human Disturbed Snowpack in the Subalpine [ppt, 3M] snowpack: temperature, density; human impact: compression

Garrett Porter * Are we polluting the Ridge’s precipitation? [ppt, 3M] snowpack: chemistry, pH, electrical conductivity; atmospheric deposition

Chris Giersch * The Mountain Pine Beetle and Its Effects on Snowpack [ppt, 6M] snowpack: temperature, density; canopy light exposure, forest health: mountain pine beetle kill

Genesis Machek * The Effects of Wind Exposure and Disturbance on the Insulative Value of the Subnivean Space [pptx, 100k] snowpack: temperature, density, insulation; wind exposure; human impact: compression
2011 Vivian Underhill
*
Effects of Aspect on Faceting in the Rocky Mountain Snowpack [pptx, 1.5M] snowpack: aspect; faceting, near-surface & depth hoar; diurnal radiation

Sean Sutherland
*

Short-term changes in snowpack due to weather [pptx, 4.5M]

snowpack: grain type, faceting, depth hoar; short-term (1 week) change, weather


II. Fungi & Lichen Winter Ecology (Microbial ecology: see also Ecosystem and Landscape Processes in Winter)
 
2009 Ken Anderson 
Ecological and Economical Impact of Snow Molds [ppt, 1.4M] fungi: snowmolds
2011

Zack Schubert

*

Distribution of Arboreal Lichens Relative to Snowpack [ppt, 1.5M]

lichen, height above/below snowpack surface; aspen, conifers


III. Vegetation Winter Processes
 
2005 Charlie Morriss
Evergreens and Sunlight [ppt, 160K] plant physiology: conifers

Tim Moret
Riparian Zones in Winter [ppt, 3.2M] vegetation: riparian; streams

Arden Piland
Survival of Subnivean vs. Supranivean Plants: The Snow Buttercup and Engelmann Spruce [ppt, 1.2M] plant adaptations: conifers, herbaceous plants; snowpack

Tyler Bieneman
Lodgepole Pine / Ponderosa Pine Ecotone vs. Lodgepole Pine / Limber Pine Ecotone  [ppt, 1.3M] vegetation: montane, subalpine, conifers, ecotones

Alan Rosacker
Stem Morphology for Quaking Aspen (Populus tremuloides) and Limber Pine (Pinus flexilis) [ppt, 4M] plant morphology: conifers, deciduous trees
2006 Kyle Cunningham
A Winter Comparison Study of Dominant Alpine Plant Communities in the 
Southern Rocky Mountains and the Chugach Mountains of Southern Alaska. [ppt, 800k]
vegetation: alpine

Kate Samelson
Winter Ecological Interactions between Alpine and Subalpine Ecosystems. [ppt, 1.3M] vegetation: alpine, subalpine; landscape continuum
2008 Philip Neumann
The Impact of Lodgepole Pine Size on Heat-formed Tree Wells [ppt, 1.7M] snowpack metamorphism; conifers, forest canopy light

Miles Daly
The Impact of Forest on Snowpack Stability [ppt, 500k] snowpack: avalanches; forests

Jason Ward
Hydrologic Change & Riparian Forests  [ppt, 600k] vegetation: riparian forests; surface hydrology 
2009 Andrea Dixon
Effects of Snowpack on Plant Community [ppt, 1M] vegetation: alpine; snowpack

Brian Schleckser * What are the Effects of Exposure on the Treeline Ecosystem?  [ppt, 8M] vegetation: alpine / subalpine treeline; wind exposure
2010 Jaclyn Ramaley * Foundation Conifer of the Subalpine Forest Limber Pine / Pinus flexilis [pptx, 400k] plant habitat: conifers; landscape position: snowcover, soil, slope

Nick Ludolph
Human Suppression of Snow Avalanches and Vegetation Dynamics
in the Subalpine Ecosystem [pptx, 5M]
snowpack: avalanches; vegetation: subalpine forests; human impacts: snow fences

Michael Schuster * The Effect of Tree Density and Height on Tree-flagging of Lodgepole Pines
in Niwot’s Sub-alpine Forest [pptx, 2M]
vegetation: subalpine forests; forest structure, canopy light
2011

Ryan Zubizarreta

*
Snow Depth Differences at 10,080 ft. under Limber Pine, Engelmann Spruce, and Aspen Trees [pptx, 2.4M] vegetation:  subapline forest, tree canopy structure; snowpack: depth change with distance from trunk

Justin Burman
*

Spatial Variability of Aspen Bark Chlorophyll Content In the Winter [ppt, 3M]

plant physiology: chlorophyll; aspect, trunk-face cardinal direction; aspen, bark color


IV. Ecosystem and Landscape Processes in Winter
 
2009 Sara Fairchild
Winter and its Effects on Soil Respiration  [ppt, 900k] soil respiration: carbon sequestration, seasonal dependence

Ryan Provencher
Nutrient Distribution in the Alpine and Subalpine Ecosystems of the Front Range  [ppt, 3M] biogeochemistry: nutrients; vegetation zones, landscape continuum
2010 Sara Crepinsek * How CO2 Respiration Near the Mountain Research Station Relates to Climate Change [pptx, 2M] soil respiration; snowpack: depth; carbon sequestration; climate change

Justin D’Atri * Winter Soil Respiration Near Dead and Living Lodgepole Pines at Niwot Ridge, CO [ppt, 1M] soil respiration; forest health / insects: mountain pine beetle kill; lodgepole forest
2011

Daniel Bradley

*
Soil Carbon under the Snowpack in a Continuous Conifer Forest [pptx, 0.5M] soil microbial respiration: soil carbon, snowpack depth; lodgepole forest


V. Arthropod Winter Ecology
 
2006 Jeff McClenahan
Winter Adaptations of the Leaf Litter and Soil Arthropod Collembola.  [ppt, 1.1M] soil / litter: arthropods
2008 Liz Manley
Examining Overwinter Cold-hardiness in Insects [ppt, 2.2M] insect physiology

Ashley Noonan
Alpine Glacial Melt: The Effects on Invertebrates of Alpine Aquatic Ecosystems [pdf, 12.5M] aquatic: streams

Matthew McClure
Ice Streams & Invertebrates [ppt, 2.3M] aquatic: streams, arthropods
2009 Andrew Habig
Winter Mortalities of the Mountain Pine Beetle [ppt, 500k] forest insects: mountain pine beetle
2010 Carissa Fisher * The Effects of Chemical and Physical Factors of Streams on Aquatic Invertebrates [pptx, 2M] aquatic: stream morphology; chemistry: dissolved oxygen, pH, temperature, total organic carbon; invertebrates: biodiversity


VI. Fish Winter Ecology
 
2008 Lauren Pacheco
Cold Tolerant Fish in Alpine Streams [ppt, 300k] aquatic: streams; fish: phyisology; climate change


VII. Mammal Winter Ecology
 
2005 Megan McCarthy
The Lynx and the Snowshoe Hare: Which Factors Cause the Cyclical Oscillations in the Population? [ppt, 900K] mammals: snowshoe hare; population dynamics

Chad Martens
Are Alpine Species Disappearing?: The Effects of Climate Change on Alpine Vertebrates in the Rocky Mountains. [ppt, 1M] mammals: marmot, pika; birds: ptarmigan; climate change, vegetation change

Sheryn Olson
Adaptations of Mustelinae to Winter, or: They Didn’t Listen to Bergmann [ppt, 1M] mammals: weasel

Joanna Denninghoff 
Ecological Influences of Canis lupus arctos and Canis lupus of Yellowstone National Park [ppt, 5M] mammals: wolf
2006 Bobby Bennett 
Hibernation of the Black and Brown Bear [ppt, 520K] mammals: bear; hibernation

Justina Thorsen
A Comparison of Abert Squirrels, Pine Squirrels and Fox Squirrels with Respect to Life in the Cold. [ppt, 4M] mammals: squirrel

Kelly Matheson
Seasonal Coat Color Distribution of Mustela frenata (Long-tailed Weasel) in North America [ppt, 830k] mammals: weasel; seasonal pelage change
2008 David Rosengarten
Road Permeability Issues and Solutions for Ungulates [ppt, 2.7M] mammals: elk, deer; migration, human impacts, highways

Kevin Kohler 
Effect of Winter Phases on Survival of Subnivean Mammals [ppt, 400k] mammals: vole, weasel; mortality
2009 Taylor Loen
Implications of Beetle Killed Lodgepole Pine Effects on the Red Squirrel in Winter [ppt, 100k] mammals: squirrel; conifers, mountain pine beetle kill

Noel DiPaola
In What Way is Climate Change Affecting the Small Rodent Community? [ppt, 2.4M]  mammals: lemmings; climate change
2010 Melissa Pacheco * Habitat Use of the Snowshoe Hare [pptx, 2M] mammals: snowshoe hare; habitat: forest spatial structure

Michael McHugh * Comparing Moose Behaviors in Snowy Environments [ppt, 4M] mammals: moose; behavior: habitat, foraging, movement, bedding; snowpack
2011 Erin Kinney
*

Animal Activity and Tree Well Width [ppt, 2.3M]

mammals: behavior: movement, resting, tracks, snowpack entrance holes; forest, tree wells


VIII. Bird Winter Ecology
 
2005 Chad Martens
Are Alpine Species Disappearing?: The Effects of Climate Change on Alpine Vertebrates in the Rocky Mountains. [ppt, 1M] birds: ptarmigan; mammals: marmot, pika; climate change, vegetation change
2010 John Rudolph * Winter Foraging Habits of Communal Flocking Birds [pptx, 1M] birds: nuthatch, chickadee; niche separation: foraging behavior

Shelley Nagata * Available Alpine Resources for the Insectivorous Golden-crowned Kinglet [pptx, 12M] birds: kinglet: food resources: arboreal insect community


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rev.  20 Fb 11