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Effects of changing climate on the demography of the Karner blue butterfly: Progress summary. NPS Climate change response grant A joint collaboration between NPS, USGS, University of Notre Dame. PROJECT OVERVIEW. DEMOGRAPHY. NICHE MODELING. Temp treatments Snow cover treatments
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Effects of changing climate on the demography of the Karner blue butterfly:Progress summary NPS Climate change response grant A joint collaboration between NPS, USGS, University of Notre Dame
PROJECT OVERVIEW DEMOGRAPHY NICHE MODELING • Temp treatments • Snow cover treatments • Predation/parasitism • Lupine phenology • Range-wide • Population-specific MICROCLIMATE POP. GENETICS • Genetic diversity and variation • What is a “population”? • Map Kbb, lupine, and microclimate at INDU
PROJECT OVERVIEW DEMOGRAPHY NICHE MODELING • Temp treatments • Snow cover treatments • Predation/parasitism • Lupine phenology • Range-wide • Population-specific MICROCLIMATE POP. GENETICS • Genetic diversity and variation • What is a “population”? • Map Kbb, lupine, and microclimate at INDU
DEMOGRAPHY TEMPERATURE TREATMENTS ~160 diapausingKbb eggs (2010 2nd flight) per treatment
Treatment Cohort Demography *Did not reach pupation
Adult Mass vs. 9C DD Scatter plot First Flight Second Flight
Adult Mass vs. 12C DDScatter plot First Flight Second Flight
Adult Mass by SexANOVA First Flight Second Flight
Days to PupationANOVA First Flight Second Flight
Days to PupationANOVA First Flight Second Flight
.Ecological Niche Modeling. Land cover Temperature Precipitation
.Ecological Niche Modeling. Land cover Temperature Precipitation
.Historic Range. • Historic range: NH/ME to MN • Since extirpated: • IL, MA, NJ, PA, ME, and Ontario
.Environmental Layers. • BIOCLIM variables • Canadian Centre for Climate Modeling Analysis (CCCMA). Current and A2 scenario (2080) • Advanced Very High Resolution Radiometer (AVHRR) land cover • Moderate Resolution Imaging Spectroradiometer (MODIS) vegetation continuous fields • IPCC Major Soil Classifications
.Algorithm Comparisons. .OM-GARP (Current).
.Algorithm Comparisons. • GARP depicts more complete historic range • MaxEnt probability threshhold lower .OM-GARP (Current). .MaxEnt (Current).
.Algorithm Comparisons. OM-GARP (2080)
.Algorithm Comparisons. .OM-GARP (Current). .MaxEnt (Current). OM-GARP (2080) .MaxEnt (2080).
.Algorithm Comparisons. OM-GARP (2080) .MaxEnt (2080). 1. Similar complete displacement 2. Working on sub-pupulation GARP models a. NY/IN complete suitability issues
.Research Questions. • 1. Assessing the potential of local adaptation-do different Karner sub-populations fill different climatic niches? • Sub-population-specific approach to modeling • 2. Are ecological niche models capable of capturing local adaptation within a range-wide data set?
.Cluster Analysis. • Obtained values for each BIOCLIM variable at each occurrence point • PCA scatter plot-cluster?
.PCA Scatter. • PC1=65.3% • PC2=14.6% PC2: (Max Temp of Warmest Quarter, Mean Temp of Wettest Quarter) PC1: (Mean Temp of Driest Quarter, Temp Seasonality)
.Preliminary Conclusions. • Question 1: Do different Karner sub-populations fill different climatic niches? Different Optimal Conditions Different Response Variables Lack of Geographic Overlap Climatic Variation
.Preliminary Conclusions. • Question 2: Are ecological niche models capable of capturing local adaptation within a range-wide data set? Yes Limitation
.Implications. • Ecological niche range-wide outputs for fragmented ranges analyzed with caution • Management efforts: • Need for sub-population specific management plans • Placement of recovery units in areas with similar to origin climate envelopes