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Effects of agricultural intensification on nestling condition and number of young fledged of barn swallows (Hirundo rustica).

Kusack JW, Mitchell GW, Evans DR, Cadman MD, Hobson KA.

Sci Total Environ. 2020 Mar 20;709:136195. doi: 10.1016/j.scitotenv.2019.136195. Epub 2019 Dec 19.


Tracking cats revisited: Placing terrestrial mammalian carnivores on δ2H and δ18O isoscapes.

Koehler G, Hobson KA.

PLoS One. 2019 Sep 3;14(9):e0221876. doi: 10.1371/journal.pone.0221876. eCollection 2019.


Age-dependent carry-over effects in a long-distance migratory bird.

López Calderón C, Balbontín Arenas J, Hobson KA, Møller AP.

Sci Rep. 2019 Aug 19;9(1):12032. doi: 10.1038/s41598-019-47374-3.


Migration distance does not predict blood parasitism in a migratory songbird.

Sorensen MC, Dixit T, Kardynal KJ, Newton J, Hobson KA, Bensch S, Jenni-Eiermann S, Spottiswoode CN.

Ecol Evol. 2019 Jul 1;9(14):8294-8304. doi: 10.1002/ece3.5404. eCollection 2019 Jul.


Stable isotopes reveal captive vs wild origin of illegally captured songbirds in France.

Jiguet F, Kardynal KJ, Hobson KA.

Forensic Sci Int. 2019 Sep;302:109884. doi: 10.1016/j.forsciint.2019.109884. Epub 2019 Jul 26.


Variable sea-ice conditions influence trophic dynamics in an Arctic community of marine top predators.

Pratte I, Braune BM, Hobson KA, Mallory ML.

Ecol Evol. 2019 May 30;9(13):7639-7651. doi: 10.1002/ece3.5313. eCollection 2019 Jul.


Geographical assignment of polar bears using multi-element isoscapes.

Koehler G, Kardynal KJ, Hobson KA.

Sci Rep. 2019 Jun 28;9(1):9390. doi: 10.1038/s41598-019-45874-w.


Unravelling migration connectivity reveals unsustainable hunting of the declining ortolan bunting.

Jiguet F, Robert A, Lorrillière R, Hobson KA, Kardynal KJ, Arlettaz R, Bairlein F, Belik V, Bernardy P, Copete JL, Czajkowski MA, Dale S, Dombrovski V, Ducros D, Efrat R, Elts J, Ferrand Y, Marja R, Minkevicius S, Olsson P, Pérez M, Piha M, Raković M, Schmaljohann H, Seimola T, Selstam G, Siblet JP, Skierczyǹski M, Sokolov A, Sondell J, Moussy C.

Sci Adv. 2019 May 22;5(5):eaau2642. doi: 10.1126/sciadv.aau2642. eCollection 2019 May.


Geographic origin and migration phenology of European red admirals (Vanessa atalanta) as revealed by stable isotopes.

Brattström O, Shapoval A, Wassenaar LI, Hobson KA, Åkesson S.

Mov Ecol. 2018 Dec 21;6:25. doi: 10.1186/s40462-018-0143-3. eCollection 2018.


Migratory connectivity in the Loggerhead Shrike (Lanius ludovicianus).

Chabot AA, Hobson KA, Van Wilgenburg SL, Pérez GE, Lougheed SC.

Ecol Evol. 2018 Oct 24;8(22):10662-10672. doi: 10.1002/ece3.4415. eCollection 2018 Nov.


Effects of tanning on the stable isotopic compositions of hair.

Koehler G, Hobson KA.

Forensic Sci Int. 2018 Nov;292:78-82. doi: 10.1016/j.forsciint.2018.08.020. Epub 2018 Sep 24.


Migratory monarchs that encounter resident monarchs show life-history differences and higher rates of parasite infection.

Satterfield DA, Maerz JC, Hunter MD, Flockhart DTT, Hobson KA, Norris DR, Streit H, de Roode JC, Altizer S.

Ecol Lett. 2018 Nov;21(11):1670-1680. doi: 10.1111/ele.13144. Epub 2018 Aug 27.


A multi-isotope (δ13C, δ15N, δ34S, δ2H) approach to establishing migratory connectivity in lesser snow geese: Tracking an overabundant species.

Fowler DN, Webb EB, Baldwin FB, Vrtiska MP, Hobson KA.

PLoS One. 2018 Aug 24;13(8):e0203077. doi: 10.1371/journal.pone.0203077. eCollection 2018.


Spring temperature, migration chronology, and nutrient allocation to eggs in three species of arctic-nesting geese: Implications for resilience to climate warming.

Hupp JW, Ward DH, Soto DX, Hobson KA.

Glob Chang Biol. 2018 Nov;24(11):5056-5071. doi: 10.1111/gcb.14418. Epub 2018 Sep 23.


Spatio-temporal variation of nitrate sources to Lake Winnipeg using N and O isotope (δ15N, δ18O) analyses.

Soto DX, Koehler G, Wassenaar LI, Hobson KA.

Sci Total Environ. 2019 Jan 10;647:486-493. doi: 10.1016/j.scitotenv.2018.07.346. Epub 2018 Jul 29.


Tracking data and retrospective analyses of diet reveal the consequences of loss of marine subsidies for an obligate scavenger, the Andean condor.

Lambertucci SA, Navarro J, Sanchez Zapata JA, Hobson KA, Alarcón PAE, Wiemeyer G, Blanco G, Hiraldo F, Donázar JA.

Proc Biol Sci. 2018 May 30;285(1879). pii: 20180550. doi: 10.1098/rspb.2018.0550.


Assessing seasonal changes in animal diets with stable-isotope analysis of amino acids: a migratory boreal songbird switches diet over its annual cycle.

Gómez C, Larsen T, Popp B, Hobson KA, Cadena CD.

Oecologia. 2018 May;187(1):1-13. doi: 10.1007/s00442-018-4113-7. Epub 2018 Mar 22.


Immune profiles vary seasonally, but are not significantly related to migration distance or natal dispersal, in a migratory songbird.

Kelly TR, MacGillivray HL, Hobson KA, MacDougall-Shackleton SA, MacDougall-Shackleton EA.

J Exp Zool A Ecol Integr Physiol. 2017 Jun;327(5):284-292. doi: 10.1002/jez.2088. Epub 2017 Aug 23.


Environmental conditions during winter predict age- and sex-specific differences in reproductive success of a trans-Saharan migratory bird.

López-Calderón C, Hobson KA, Marzal A, Balbontín J, Reviriego M, Magallanes S, García-Longoria L, de Lope F, Møller AP.

Sci Rep. 2017 Dec 22;7(1):18082. doi: 10.1038/s41598-017-18497-2.


Compatibility of preparatory procedures for the analysis of cortisol concentrations and stable isotope (δ13C, δ15N) ratios: a test on brown bear hair.

Sergiel A, Hobson KA, Janz DM, Cattet M, Selva N, Kapronczai L, Gryba C, Zedrosser A.

Conserv Physiol. 2017 Mar 24;5(1):cox021. doi: 10.1093/conphys/cox021. eCollection 2017.


Tracing biogeochemical subsidies from glacier runoff into Alaska's coastal marine food webs.

Arimitsu ML, Hobson KA, Webber DN, Piatt JF, Hood EW, Fellman JB.

Glob Chang Biol. 2018 Jan;24(1):387-398. doi: 10.1111/gcb.13875. Epub 2017 Sep 23.


Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird.

Gómez C, Bayly NJ, Norris DR, Mackenzie SA, Rosenberg KV, Taylor PD, Hobson KA, Daniel Cadena C.

Sci Rep. 2017 Jun 13;7(1):3405. doi: 10.1038/s41598-017-03503-4.


Re-evaluation of the hydrogen stable isotopic composition of keratin calibration standards for wildlife and forensic science applications.

Soto DX, Koehler G, Wassenaar LI, Hobson KA.

Rapid Commun Mass Spectrom. 2017 Jul 30;31(14):1193-1203. doi: 10.1002/rcm.7893.


Migration distance as a selective episode for wing morphology in a migratory insect.

Flockhart DTT, Fitz-Gerald B, Brower LP, Derbyshire R, Altizer S, Hobson KA, Wassenaar LI, Norris DR.

Mov Ecol. 2017 Apr 5;5:7. doi: 10.1186/s40462-017-0098-9. eCollection 2017.


Opinion: Why we need a centralized repository for isotopic data.

Pauli JN, Newsome SD, Cook JA, Harrod C, Steffan SA, Baker CJ, Ben-David M, Bloom D, Bowen GJ, Cerling TE, Cicero C, Cook C, Dohm M, Dharampal PS, Graves G, Gropp R, Hobson KA, Jordan C, MacFadden B, Pilaar Birch S, Poelen J, Ratnasingham S, Russell L, Stricker CA, Uhen MD, Yarnes CT, Hayden B.

Proc Natl Acad Sci U S A. 2017 Mar 21;114(12):2997-3001. doi: 10.1073/pnas.1701742114. No abstract available.


Long-Distance Range Expansion and Rapid Adjustment of Migration in a Newly Established Population of Barn Swallows Breeding in Argentina.

Winkler DW, Gandoy FA, Areta JI, Iliff MJ, Rakhimberdiev E, Kardynal KJ, Hobson KA.

Curr Biol. 2017 Apr 3;27(7):1080-1084. doi: 10.1016/j.cub.2017.03.006. Epub 2017 Mar 16.


Feather corticosterone during non-breeding correlates with multiple measures of physiology during subsequent breeding in a migratory seabird.

Fairhurst GD, Champoux L, Hobson KA, Rail JF, Verreault J, Guillemette M, Montevecchi WA, Brousseau P, Soos C.

Comp Biochem Physiol A Mol Integr Physiol. 2017 Jun;208:1-13. doi: 10.1016/j.cbpa.2017.02.024. Epub 2017 Feb 24.


Correction: Within-Site Variation in Feather Stable Hydrogen Isotope (δ2Hf) Values of Boreal Songbirds: Implications for Assignment to Molt Origin.

Nordell CJ, Haché S, Bayne EM, Sólymos P, Foster KR, Godwin CM, Krikun R, Pyle P, Hobson KA.

PLoS One. 2017 Feb 15;12(2):e0172619. doi: 10.1371/journal.pone.0172619. eCollection 2017.


Regional climate on the breeding grounds predicts variation in the natal origin of monarch butterflies overwintering in Mexico over 38 years.

Flockhart DTT, Brower LP, Ramirez MI, Hobson KA, Wassenaar LI, Altizer S, Norris DR.

Glob Chang Biol. 2017 Jul;23(7):2565-2576. doi: 10.1111/gcb.13589. Epub 2017 Jan 3.


Experienced migratory songbirds do not display goal-ward orientation after release following a cross-continental displacement: an automated telemetry study.

Kishkinev D, Heyers D, Woodworth BK, Mitchell GW, Hobson KA, Norris DR.

Sci Rep. 2016 Nov 23;6:37326. doi: 10.1038/srep37326.


Density-dependent resource selection by a terrestrial herbivore in response to sea-to-land nutrient transfer by seals.

McLoughlin PD, Lysak K, Debeffe L, Perry T, Hobson KA.

Ecology. 2016 Aug;97(8):1929-1937. doi: 10.1002/ecy.1451.


Multi-Isotopic (δ2H, δ13C, δ15N) Tracing of Molt Origin for Red-Winged Blackbirds Associated with Agro-Ecosystems.

Werner SJ, Hobson KA, Van Wilgenburg SL, Fischer JW.

PLoS One. 2016 Nov 15;11(11):e0165996. doi: 10.1371/journal.pone.0165996. eCollection 2016.


Within-Site Variation in Feather Stable Hydrogen Isotope (δ2Hf) Values of Boreal Songbirds: Implications for Assignment to Molt Origin.

Nordell CJ, Haché S, Bayne EM, Sólymos P, Foster KR, Godwin CM, Krikun R, Pyle P, Hobson KA.

PLoS One. 2016 Nov 2;11(11):e0163957. doi: 10.1371/journal.pone.0163957. eCollection 2016. Erratum in: PLoS One. 2017 Feb 15;12 (2):e0172619.


Long-distance autumn migration across the Sahara by painted lady butterflies: exploiting resource pulses in the tropical savannah.

Stefanescu C, Soto DX, Talavera G, Vila R, Hobson KA.

Biol Lett. 2016 Oct;12(10). pii: 20160561.


Using hydrogen isotopes of freshwater fish tissue as a tracer of provenance.

Soto DX, Hobson KA, Wassenaar LI.

Ecol Evol. 2016 Oct 5;6(21):7776-7782. doi: 10.1002/ece3.2519. eCollection 2016 Nov.


Testosterone, migration distance, and migratory timing in song sparrows Melospiza melodia.

Lymburner AH, Kelly TR, Hobson KA, MacDougall-Shackleton EA, MacDougall-Shackleton SA.

Horm Behav. 2016 Sep;85:102-107. doi: 10.1016/j.yhbeh.2016.06.013. Epub 2016 Aug 14.


State-dependent capital and income breeding: a novel approach to evaluating individual strategies with stable isotopes.

Jaatinen K, Öst M, Hobson KA.

Front Zool. 2016 Jun 9;13:24. doi: 10.1186/s12983-016-0157-x. eCollection 2016.


Adcyap1 polymorphism covaries with breeding latitude in a Nearctic migratory songbird, the Wilson's warbler (Cardellina pusilla).

Bazzi G, Galimberti A, Hays QR, Bruni I, Cecere JG, Gianfranceschi L, Hobson KA, Morbey YE, Saino N, Guglielmo CG, Rubolini D.

Ecol Evol. 2016 Apr 7;6(10):3226-39. doi: 10.1002/ece3.2053. eCollection 2016 May.


Turnover of hydrogen isotopes in lake sturgeon blood: implications for tracking movements of wild populations.

Kreitals NM, Hobson KA, Hoemsen BM, Crane AL, Wishingrad V, Sloychuk J, Pollock MS, Chivers DP, Phillips ID.

Isotopes Environ Health Stud. 2016 Dec;52(6):592-602. doi: 10.1080/10256016.2016.1147440. Epub 2016 Mar 16.


Differential migration and the link between winter latitude, timing of migration, and breeding in a songbird.

Woodworth BK, Newman AE, Turbek SP, Dossman BC, Hobson KA, Wassenaar LI, Mitchell GW, Wheelwright NT, Norris DR.

Oecologia. 2016 Jun;181(2):413-22. doi: 10.1007/s00442-015-3527-8. Epub 2016 Feb 18.


Response to letter regarding article "How far north are migrant birds transporting the tick Ixodes scapularis in Canada? Insights from stable hydrogen isotope analyses of feathers".

Ogden NH, Barker IK, Francis CM, Heagy A, Lindsay LR, Hobson KA.

Ticks Tick Borne Dis. 2016 Mar;7(2):329-30. doi: 10.1016/j.ttbdis.2015.12.002. Epub 2015 Dec 23.


Measurement of Whole-Body CO2 Production in Birds Using Real-Time Laser-Derived Measurements of Hydrogen (δ(2)H) and Oxygen (δ(18)O) Isotope Concentrations in Water Vapor from Breath.

Mitchell GW, Guglielmo CG, Hobson KA.

Physiol Biochem Zool. 2015 Nov-Dec;88(6):599-606. doi: 10.1086/683013. Epub 2015 Jul 30.


Do Healthy Monarchs Migrate Farther? Tracking Natal Origins of Parasitized vs. Uninfected Monarch Butterflies Overwintering in Mexico.

Altizer S, Hobson KA, Davis AK, De Roode JC, Wassenaar LI.

PLoS One. 2015 Nov 25;10(11):e0141371. doi: 10.1371/journal.pone.0141371. eCollection 2015.


Large-scale spatial variation in feather corticosterone in invasive house sparrows (Passer domesticus) in Mexico is related to climate.

Treen GD, Hobson KA, Marchant TA, Bortolotti GR.

Ecol Evol. 2015 Sep;5(17):3808-17. doi: 10.1002/ece3.1638. Epub 2015 Aug 21.


Toward a Deuterium Feather Isoscape for Sub-Saharan Africa: Progress, Challenges and the Path Ahead.

Gutiérrez-Expósito C, Ramírez F, Afán I, Forero MG, Hobson KA.

PLoS One. 2015 Sep 10;10(9):e0135938. doi: 10.1371/journal.pone.0135938. eCollection 2015.


Human-Induced Long-Term Shifts in Gull Diet from Marine to Terrestrial Sources in North America's Coastal Pacific: More Evidence from More Isotopes (δ2H, δ34S).

Hobson KA, Blight LK, Arcese P.

Environ Sci Technol. 2015 Sep 15;49(18):10834-40. doi: 10.1021/acs.est.5b02053. Epub 2015 Aug 26.


Migratory connectivity of a Neotropical migratory songbird revealed by archival light-level geolocators.

Hallworth MT, Sillett TS, Van Wilgenburg SL, Hobson KA, Marra PP.

Ecol Appl. 2015 Mar;25(2):336-47.


Milk isotopic values demonstrate that nursing fur seal pups are a full trophic level higher than their mothers.

Cherel Y, Hobson KA, Guinet C.

Rapid Commun Mass Spectrom. 2015 Aug 30;29(16):1485-90. doi: 10.1002/rcm.7243.


Correction: A Continent-Wide Migratory Divide in North American Breeding Barn Swallows (Hirundo rustica).

Hobson KA, Kardynal KJ, Van Wilgenburg SL, Albrecht G, Salvadori A, Cadman MD, Liechti F, Fox JW.

PLoS One. 2015 Jul 14;10(7):e0133104. doi: 10.1371/journal.pone.0133104. eCollection 2015. No abstract available.

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