Beyond Habitat Selection: Physiological Responses of Species to Climate Betsy Reardon GEO 387H:...
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Transcript of Beyond Habitat Selection: Physiological Responses of Species to Climate Betsy Reardon GEO 387H:...
![Page 1: Beyond Habitat Selection: Physiological Responses of Species to Climate Betsy Reardon GEO 387H: Physical Climatology Literature Review Presentation Professor:](https://reader037.fdocuments.in/reader037/viewer/2022110403/56649e625503460f94b5dd50/html5/thumbnails/1.jpg)
Beyond Habitat Selection: Physiological Responses of
Species to Climate
Betsy ReardonGEO 387H: Physical ClimatologyLiterature Review PresentationProfessor: Dr. Zong-Liang Yang
![Page 2: Beyond Habitat Selection: Physiological Responses of Species to Climate Betsy Reardon GEO 387H: Physical Climatology Literature Review Presentation Professor:](https://reader037.fdocuments.in/reader037/viewer/2022110403/56649e625503460f94b5dd50/html5/thumbnails/2.jpg)
Presentation Outline
• Introduction to Ecology/Biogeography• Climate Envelope Models vs.
Mechanistic Models• Key Life History Features and Their
Relationship to Climate• Conclusions
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Introduction
• What is Ecology?• What is Biogeography?• Species Ranges and Range Limits
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http://www.conifers.org/cu/ju/communis
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Introduction
• What is Ecology?• What is Biogeography?• Species Ranges and Range Limits• Future Predictions about Range
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Climate Envelope Model
• Based on Ecological Niche Theory– Hutchinson 1957
• Define Current Range• Determine Correlative Environmental
Variables• Attempt to Anticipate Future Spatial of
Environmental Variables
• Species Track Environmental Variables
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Climate Envelope Model
• Based on either presence-absence data or abundance counts
• Assume full range information with comprehensive data
• Assume capturing all significant environmental variables
• Attempt to not “Over-Fit” the data
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http://www.ecologyandsociety.org/vol4/iss1/art1/figure2
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http://www.bio.sdsu.edu/eb/avanderg/pitfall_locations2.jpg
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Mechanistic Model
• Identify relationship between key biological events and climate
• Predict physiological responses to climate change
• Forecast future range boundaries
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Key Life History Features
• Migration• Sex Determination• Phenology• Reproduction
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Migration
• Triggers classically studied as either temperature or lighting variations
• Suggest relationship to large-scale global climate phenomena– Ex. North Atlantic Oscillation (NAO)– Huppop and Huppop (2003)
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http://www.bird-friends.com/pics/BlackThroatedBlueWarbler
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http://www.fws.gov/arrowwood/pothole.html
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Sex Determination
• Human sex determination is based on sex chromosomes
• Most reptile sex determination is based on environmental controls
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http://i1.treknature.com/
• 2ºC shifted from normal• 4ºC beyond rebound
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http://www.parkerriver.org
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Phenology
• Study of the timing of biological events– Use to study reaction of species to
climate change– Use to anticipate shifts in ecological
relationships
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Reproduction
• Commonly coupled with other life history events
• Reproductive success is dependent on climate
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http://www.naturcymru.org.uk
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http://www.marksphotos.nuttybird.net
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Conclusions
• Essential links between key life history events and climate
• Rate of evolution and climate change• Climate Envelop vs. Mechanistic
Models