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Available Alpine Resources for the Insectivorous Golden- crowned Kinglet Shelley Nagata -Winter Ecology, 2010 – Mountain Research Station, University of.

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Presentation on theme: "Available Alpine Resources for the Insectivorous Golden- crowned Kinglet Shelley Nagata -Winter Ecology, 2010 – Mountain Research Station, University of."— Presentation transcript:

1 Available Alpine Resources for the Insectivorous Golden- crowned Kinglet Shelley Nagata -Winter Ecology, 2010 – Mountain Research Station, University of Colorado, Boulder EBIO 4100, Sec 570

2 Overview  Research & background topics about the Golden-crowned Kinglet  Investigate how Kinglet is able to survive through the cold weather  Procedure and Methods that were executed in order to answer this question  Results  Drawing conclusions

3 Research  Kinglets summer diet  Little information on winter diet  Difficulties faced among winter Bernd Heinrich and Ross Bell

4 Key Features of the Golden-crowned Kinglet (Regulus satrapa)  Identification Tips  Important behavioral aspects http://www.usgs.gov

5 What are the Kinglets eating??  Discover the possible resources available in alpine ecosystems.  Determine how well the resources are represented in the sampled area

6 Methods  Field Tools - Beat sheet - Sledge hammer -Aspirator  Communities 1 & 2 -10,100 ft -9,600 ft  Community constants -20 Trees at each site -Spruce Forests  Collect count data Bernd Heinrich and Ross Bell

7 Classifying - body shape -wings - legs

8

9 Segmented appendages

10 Results continued…  Diversity Index s Shannon-Wiener Index (H’) = -Σ (p i )(lnp i ) i=1 p i  proportion of individuals of species (i) in community  Chi-squared test X 2 = Σ (Observed-Expected) 2 / Expected

11 Community Diversities  Community 1: 10,100 ft H’= 0.21 More distributed environment Less Stable  Community 2: 9,600 ft H’ = 0.24 Greater abundance  compare the multiple dependent variables collected under different environments

12 Chi-squared Interpretation  Level 0.01 indicated a significant difference between the proportions of insects found in community 1 and community 2.  Distribution of observations differs among the two communities  Communities structured differently in regards to the different orders found in the communities

13 Drawing Conclusions  Freeze Avoidance -Cannot tolerate formation of ice in body tissues  Free Tolerance -Tolerate formation of ice within tissues -Evolving Orders  Winter foraging results in abundance  Evolving affects on foraging specialization

14 References  Bell, R. & Heinrich, B. 2010. Winter Food of Small Insectivorous Bird, the Golden-Crowned Kinglet. Wilson Ornithological Society. The Wilson Bulletin 107(3): 558-561.  http://www.mbr-pwrc.usgs.gov/Infocenter/ i7480id.html http://www.mbr-pwrc.usgs.gov/Infocenter/


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