Publications to date
Wingfield J.C., Pérez J.H., Krause J.S., Gonzalez-Gomez P., Lisovski S., Chmura H.E., & Word K.R. How birds cope with extreme climatic events (In Press - Philosophical Transactions)
Gersony J. Prager C. Sweet S.K., & Boelman N. Scaling thermal properties from the leaf to the canopy in the alaskan arctic tundra. Arctic, Antarctic and Alpine Research 2016. 48(4):739-754
Krause J.S., Pérez J.H., Chmura H.E., Meddle S.L., Hunt K.E., Sweet S.K. Gough L., Boelman N. & Wingfield J.C. The effects of extreme spring weather on body condition and stress physiology in arctic-breeding songbirds. General and Comparative Endocrinology 2016 (237) 10-18.
Boelman N., Holbrook J., Vierling L., Greaves H., Krause J.S., Perez, J.H., Chmura, H.E., Sweet S.K., Asmus A, Gough, L., & Wingfield J.C. Airborne laser scanning and spectral remote sensing give a bird's eye perspective on arctic tundra breeding habitat at multiple spatial scales. Remote Sensing of Environment 2016 184: 337-349.
Krause J.S., Pérez J.H., Chmura H.E., Meddle S.L., Hunt K.E., Gough L., Boelman N. & Wingfield J.C. The stress response is attenuated during inclement weather in parental, but not in pre-parental, Lapland longspurs (Calcarius lapponicus) breeding in the Low Arctic. Hormones and Behavior 2016 83:68-74.
Perez J.H., Krause J.S., Chmura H.E., Bowman S., McGuigan M.A., Asmus A., Meddle S.L., Hunt K.E., Gough L., Boelman N., Wingfield J.C. Nestling growth rates in relation to food abundance and weather in the Arctic. Auk 2016 133 (2):261-272
Krause J.S., Nemeth Z., Pérez J.H., Chmura H.E., Word K.R. Ramenofsky M, Wingfield J.C. A comparison of hematocrit in two subspecies of white-crowned sparrows: A migrant and a resident. Physiological and Biochemical Zoology 2016 89 (1): 51-60.
Krause J.S., Chmura H.E., Pérez J.H., Asmus A., Word K.R., Meddle S.L., Quach L.N., McGuigan M.A., Gough L., Boelman N. & Wingfield J.C. Adrenocortical responses to stress on the leading edge of a northward range expansion in arctic-breeding Gambel’s White-crowned sparrow. Oecologia 2015 180 (1) 33-44.
Wingfield J.C., Krause J.S., Pérez, J.H., Chmura, H.E., Word, K.R., Nemeth, Z., Calisi, R.M., S.L. Meddle. Changes in Distribution, Invasive Species and Coping With A Changing World: What Makes a Pioneer? 2015 (222) 44-53. DOI: 10.1007/s00442-015-3447-7
Krause J. S., S. L. Meddle, and J. C. Wingfield. The Effects of Acute Restraint Stress on Plasma Levels of Prolactin and Corticosterone across Life-History Stages in a Short-Lived Bird: Gambel’s White-Crowned Sparrow (Zonotrichia leucophrys gambelii). Physiological and Biochemical Zoology 2015 (88) 589-598.
Boelman N., Gough L., Wingfield J.C., Sweet S.K., Asmus A, Krause J.S., Chmura H.E., Perez, J.H., Greater shrub dominance in Arctic tundra reduces breeding habitat and alters food resources for migratory songbirds in northern Alaska, 2015. Global Change Biology 21 (4) 1508-1520.
Boelman NT, Gough L, Mclaren JR, Greaves H (2011) Does NDVI reflect variation in the structural attributes associated with increasing shrub dominance in arctic tundra? Environmental Research Letters, 6. DOI: 10.1088/1748-9326/6/3/035501.
Rich ME, Gough L, NT Boelman NT (2013) Arctic arthropod assemblages in habitats of differing shrub dominance. Ecography, 36, 994-1003. DOI: 10.1111/j.1600-0587.2012.00078.x.
Sweet SK, Gough L, Griffin KL, Boelman NT (2014) Tall deciduous shrubs offset delayed start of growing season through rapid leaf development in the Alaskan arctic tundra. Arctic, Antarctic, and Alpine Research, 46, 694-709. DOI: 10.1657/1938-4246-46.3.682.
Boelman NT, Gough L, Wingfield J, Goetz S, Asmus A, Krause J, Perez J, Sweet S (2014) Greater shrub dominance alters breeding habitat and food resources for migratory songbirds in Alaskan arctic tundra. Global Change Biology. DOI: 10.1111/gcb.12761.
Sweet SK, Asmus A, Rich ME, Gough L, Wingfield J, Boelman NT (2015) NDVI as a predictor of canopy arthropod biomass in the Alaskan arctic tundra. Ecological Applications, 25, 779-790. DOI: 10.1890/14-0632.1.
Krause JS, McGuigan MA, Bishop V, Wingfield JC, Meddle SM (in press) Changes in Glucocorticoid and Mineralocorticoid Receptor mRNA Expression during the short arctic breeding season in a free living wild song bird the Gambel’s White-crowned Sparrow. Journal of Neuroendocrinology 27: 66-75. DOI: 10.1111/jne.12237
Sweet SK, Griffin KL, Steltzer H, Gough L, Boelman NT (2015) Greater deciduous shrub abundance extends tundra peak season and increases modeled net CO2 uptake. Global Change Biology. DOI: 10.1111/gcb.12852.
Media and outreach
Click here to watch a brief presentations followed by a panel discussion titled ‘Warming Arctic, Changing Planet’. Sponsored by the Quebec Government Office, Lamont-Doherty Earth Observatory, and the Earth Institute of Columbia University.
Click here to watch an Earth Science Colloquium presentation, followed by a question and answer session titled 'Arctic warming: What it means for the birds and the bees'. Sponsored by Lamont-Doherty Earth Observatory, and the Department of Earth and Environmental Science of Columbia University.
Click here to read an article published by Audubon on our project entitled "Out of Sync".
Liz O'Connell from FrontierScientists.com produced a documentary entitled "Migration". This video addresses the environmental challenges faced by birds in the arctic and how migration is affect by poor weather conditions. Click here to visit their website with links to their videos.
Click here to read a Research Highlight by Anna Armstrong in Nature Plants that features some of our research.
Click here to to view a video of a presentation entitled 'Mediators of change: How do Arctic plants and animals shape global ecological dynamics?' This presentation given by Natalie Boelman at
Arctic Matters Day put on by the National Academy of Sciences, addresses some of the
changes occurring in the Arctic due to climate change, and how those changes then affect the ecological dynamics of the Arctic.
Manuscripts in review
Boelman, N., Krause, J.S., Perez, J.H., Chmura, H.E., Sweet S.K., Asmus A, Gough, L., Wingfield J.C. Inter-annual variation in arrival timing in two long distance migrants Gambel’s white-crowned sparrows and Lapland longspurs. (Submitted)
Conference presentations and posters
Gough L, Boelman NT, Wingfield JC, Krause JS, Sweet S, Rich ME, Asmus A (Poster) Effects of increasing shrub cover in arctic tundra on associated arthropods and migratory birds (Poster). Presented at Long Term Ecological Research All Scientists Meeting (LTER ASM) 2012: Estes Park, CO.
Krause JS, Perez JH, Word KR, Chmura HE, Asmus A, Sweet S, Gough L, Boelman NT, Schas J, Wingfield JC (Poster) Timing of Reproduction in Two Long Distance Migrants: Trophic Match? Presented at UC Davis Regional Annual Animal Behavior Student Conference 2013: Davis, CA.
Krause JS, Perez JH, Sweet S, Asmus A, Rish ME, Schas J, Word KR, Gough L, Wingfield JC, Boelman NT (Poster) Impacts of Changing Seasonality and the Potential for Trophic Mismatches in the Arctic. Presented at Society of Integrative and Comparative Biology (SICB) 2013 San Francisco, CA; and Arctic Long Term Ecological Research (ARC LTER) Meeting 2013: Woods Hole, MA.
Quach LN, Perez JH, Krause JS, Chmura HE, Word KR, Schas J, Ramenofsky M, Wingfield JC (Poster) Adrenocortical Responses to Stress on the Leading Edge of a Northward Range Expansion in White-crowned Sparrows. Presented at Society of Integrative and Comparative Biology (SICB) 2013: San Francisco, CA.
Sweet S, Boelman NT, Gough L, Team Bird (Poster) Greater Thaw Depth Facilitates the Growth of Woody Shrubs Through Accelerated Leaf Development. Presented at Arctic Long Term Ecological Research (ARC LTER) Meeting 2013: Woods Hole, MA.
Chmura HE, Krause JS, Perez JH, Sweet S, Asmus A, Boelman NT, Gough L, Wingfield JC (Poster) Interannual variability in arctic phenology and reproductive success in the White-crowned sparrow (Zonotrichia leucophrys gambelii) and Lapland longspur (Calcarius lapponicus) (Poster). Presented at Society of Integrative and Comparative Biology (SICB) 2014: Austin, TX.
Krause JS, McGuigan MA, Wingfield JC, Meddle SM (Talk) Regulation of Glucocorticoid and Mineralocorticoid Receptor mRNA Expression in Gambel’s White-crowned Sparrow During Breeding: The Transition from Pre-parental to Parental Phase. Presented at Society for Comparative and Integrative Biology (SICB) 2014: Austin, TX.
Sweet S, Boelman NT, Griffin KL, Steltzer H, Gough L (Poster) Greater deciduous shrub cover extends the period of maximum tundra greenness and increases seasonal CO2 flux. Presented at Arctic Long Term Ecological Research (ARC LTER) Meeting 2014: Woods Hole, MA; and the American Geophysical Union (AGU) Conference 2014: San Francisco, CA.
Sweet SK, Krause JS, Asmus A Effects of warming-induced increases in shrub abundance and changing seasonality on migratory songbirds in the Alaskan arctic tundra (Talk). Presented at Arctic Long Term Ecological Research (ARC LTER) Meeting 2014: Woods Hole, MA.
Chmura, HE, Krause, JS, Perez, JH, Sweet SK, Asmus A, Hunt KE, McGuigan, MA, Boelman, NT, Gough L, & Wingfield JC (Poster) Reproductive success in the White-crowned sparrow (Zonotrichia leucophrys gambelii) and Lapland longspur (Calcarius lapponicus): Reproductive Timing and Implications for Global Change. Presented at Society for Comparative and Integrative Biology (SICB) 2015: West Palm Beach, FL.
Krause, JS, Meddle, SM Wingfield, JC (Talk) Seasonal modulation of prolactin and corticosterone secretion in response to acute stress in a short lived arctic breeding bird. Presented at Society for Comparative and Integrative Biology (SICB) 2015: West Palm Beach, FL.
McGuigan, MA, Krause, JS, Chmura, HE, Perez, JH, Gough, L, Boelman, NT, Meddle, SM, Wingfield, JC (Poster) Spatial habitat use in post-breeding songbirds: A radio-telemetry study in Gambel’s White-crowned sparrows. Presented at Society for Comparative and Integrative Biology (SICB) 2015: West Palm Beach, FL.
Sweet SK, Asmus A, Rich M, Wingfield JC, Gough L, Boelman NT (Poster) NDVI as a predictor of canopy arthropod biomass in the Alaskan arctic tundra. Presented at Arctic Long Term Ecological Research (ARC LTER) Meeting 2015: Woods Hole, MA.
Krause, J.S., Perez, J.H., Chmura, H.E., Gough, L., Boelman, N.T., & Wingfield, J.C. (Invited Talk) Breeding in an extreme environment: Physiological and morphological responses to inter-annual environmental variation, snow storms, and range distribution. American Ornithologist’s Union (AOU) 2015: Norman, OK.
Krause JS, Perez JH, Word KR, Chmura HE, Asmus A, Sweet S, Gough L, Boelman NT, Schas J, Wingfield JC (Poster) Timing of Reproduction in Two Long Distance Migrants: Trophic Match? Presented at UC Davis Regional Annual Animal Behavior Student Conference 2013: Davis, CA.
Krause JS, Perez JH, Sweet S, Asmus A, Rish ME, Schas J, Word KR, Gough L, Wingfield JC, Boelman NT (Poster) Impacts of Changing Seasonality and the Potential for Trophic Mismatches in the Arctic. Presented at Society of Integrative and Comparative Biology (SICB) 2013 San Francisco, CA; and Arctic Long Term Ecological Research (ARC LTER) Meeting 2013: Woods Hole, MA.
Quach LN, Perez JH, Krause JS, Chmura HE, Word KR, Schas J, Ramenofsky M, Wingfield JC (Poster) Adrenocortical Responses to Stress on the Leading Edge of a Northward Range Expansion in White-crowned Sparrows. Presented at Society of Integrative and Comparative Biology (SICB) 2013: San Francisco, CA.
Sweet S, Boelman NT, Gough L, Team Bird (Poster) Greater Thaw Depth Facilitates the Growth of Woody Shrubs Through Accelerated Leaf Development. Presented at Arctic Long Term Ecological Research (ARC LTER) Meeting 2013: Woods Hole, MA.
Chmura HE, Krause JS, Perez JH, Sweet S, Asmus A, Boelman NT, Gough L, Wingfield JC (Poster) Interannual variability in arctic phenology and reproductive success in the White-crowned sparrow (Zonotrichia leucophrys gambelii) and Lapland longspur (Calcarius lapponicus) (Poster). Presented at Society of Integrative and Comparative Biology (SICB) 2014: Austin, TX.
Krause JS, McGuigan MA, Wingfield JC, Meddle SM (Talk) Regulation of Glucocorticoid and Mineralocorticoid Receptor mRNA Expression in Gambel’s White-crowned Sparrow During Breeding: The Transition from Pre-parental to Parental Phase. Presented at Society for Comparative and Integrative Biology (SICB) 2014: Austin, TX.
Sweet S, Boelman NT, Griffin KL, Steltzer H, Gough L (Poster) Greater deciduous shrub cover extends the period of maximum tundra greenness and increases seasonal CO2 flux. Presented at Arctic Long Term Ecological Research (ARC LTER) Meeting 2014: Woods Hole, MA; and the American Geophysical Union (AGU) Conference 2014: San Francisco, CA.
Sweet SK, Krause JS, Asmus A Effects of warming-induced increases in shrub abundance and changing seasonality on migratory songbirds in the Alaskan arctic tundra (Talk). Presented at Arctic Long Term Ecological Research (ARC LTER) Meeting 2014: Woods Hole, MA.
Chmura, HE, Krause, JS, Perez, JH, Sweet SK, Asmus A, Hunt KE, McGuigan, MA, Boelman, NT, Gough L, & Wingfield JC (Poster) Reproductive success in the White-crowned sparrow (Zonotrichia leucophrys gambelii) and Lapland longspur (Calcarius lapponicus): Reproductive Timing and Implications for Global Change. Presented at Society for Comparative and Integrative Biology (SICB) 2015: West Palm Beach, FL.
Krause, JS, Meddle, SM Wingfield, JC (Talk) Seasonal modulation of prolactin and corticosterone secretion in response to acute stress in a short lived arctic breeding bird. Presented at Society for Comparative and Integrative Biology (SICB) 2015: West Palm Beach, FL.
McGuigan, MA, Krause, JS, Chmura, HE, Perez, JH, Gough, L, Boelman, NT, Meddle, SM, Wingfield, JC (Poster) Spatial habitat use in post-breeding songbirds: A radio-telemetry study in Gambel’s White-crowned sparrows. Presented at Society for Comparative and Integrative Biology (SICB) 2015: West Palm Beach, FL.
Sweet SK, Asmus A, Rich M, Wingfield JC, Gough L, Boelman NT (Poster) NDVI as a predictor of canopy arthropod biomass in the Alaskan arctic tundra. Presented at Arctic Long Term Ecological Research (ARC LTER) Meeting 2015: Woods Hole, MA.
Krause, J.S., Perez, J.H., Chmura, H.E., Gough, L., Boelman, N.T., & Wingfield, J.C. (Invited Talk) Breeding in an extreme environment: Physiological and morphological responses to inter-annual environmental variation, snow storms, and range distribution. American Ornithologist’s Union (AOU) 2015: Norman, OK.