• 1
    VanArsdale A, Weiss J, Keeler G, Miller E, Boulet G, Brulotte R, Poissant L. 2005. Patterns of mercury deposition and concentration in northeastern North America (1996-2002). Ecotoxicology 14:3752.
  • 2
    Driscoll CT, Mason RP, Chan HM, Jacob DJ, Pirrone N. 2013. Mercury as a global pollutant: Sources, pathways, and effects. Environ Sci Technol 47:49674983.
  • 3
    Driscoll CT, Han Y-J, Chen CY, Evers DC, Lambert KF, Holsen TM, Kamman NC, Munson RK. 2007. Mercury contamination in forest and freshwater ecosystems in the northeastern United States. Bioscience 57:1728.
  • 4
    Hightower J, Moore D. 2003. Mercury levels in high-end consumers of fish. Environ Health Perspect 111:604608.
  • 5
    Mergler D, Anderson HA, Chan LHM, Mahaffey KR, Murray M, Sakamoto M, Stern AH. 2007. Methylmercury exposure and health effects in humans: A worldwide concern. Ambio 36:311.
  • 6
    Scheuhammer AM, Meyer MW, Sandheinrich MB, Murray MW. 2007. Effects of environmental methylmercury on the health of wild birds, mammals, and fish. Ambio 36:1219.
  • 7
    Grigal DF. 2002. Inputs and outputs of mercury from terrestrial watersheds: A review. Environ Rev 10:139.
  • 8
    Weathers KC, Cadenasso ML, Pickett STA. 2001. Forest edges as nutrient and pollutant concentrators: Potential synergisms between fragmentation, forest canopies, and the atmosphere. Conserv Biol 15:15061514.
  • 9
    Hall BD, St. Louis VL. 2004. Methylmercury and total mercury in plant litter decomposing in upland forests and flooded landscapes. Environ Sci Technol 38:50105021.
  • 10
    Friedland A, Johnson A, Siccama T. 1984. Trace metal content of the forest floor in the green mountains of Vermont: Spatial and temporal patterns. Water Air Soil Pollut 21:161170.
  • 11
    Lawrence G, Lovett G, Baevsky Y. 2000. Atmospheric deposition and watershed nitrogen export along an elevational gradient in the Catskill Mountains, New York. Biogeochemistry 50:2143.
  • 12
    Lovett GM, Weathers KC, Sobczak WV. 2000. Nitrogen saturation and retention in forested watersheds of the Catskill Mountains, New York. Ecol Appl 10:7384.
  • 13
    Driscoll CT, Lawrence GB, Bulger AJ, Butler TJ, Cronan CS, Eagar C, Lambert KF, Likens GE, Stoddard JL, Weathers KC. 2001. Acidic deposition in the northeastern United States: Sources and inputs, ecosystem effects, and management strategies. Bioscience 51:180198.
  • 14
    Rea AW, Keeler GJ, Scherbatskoy T. 1996. The deposition of mercury in throughfall and litterfall in the Lake Champlain watershed: A short-term study. Atmos Environ 30:32573263.
  • 15
    Sheehan KD, Fernandez IJ, Kahl JS, Amirbahman A. 2006. Litterfall mercury in two forested watersheds at Acadia National Park, Maine, USA. Water Air Soil Pollut 170:249265.
  • 16
    Scott JT, Holway JG. 1967. On discrete and continuous nature of the forested vegetation in northeastern United States. Bull Ecol Soc Am 48:70.
  • 17
    McIntosh RP. 1972. Forests of the Catskill Mountains, New York. Ecol Monogr 42:143161.
  • 18
    Holmes RT, Sawyer RH. 1975. Oxygen consumption in relation to ambient temperature in five species of forest-dwelling thrushes (Hylocichla and Catharus). Comp Biochem Physiol Part A Physiol 50:527531.
  • 19
    Able KP, Noon BR. 1976. Avian community structure along elevational gradients in the northeastern United States. Oecologia 26:275294.
  • 20
    Lovett GM, Reiners WA, Olson RK. 1982. Cloud droplet deposition in subalpine balsam fir forests: Hydrological and chemical inputs. Science 218:13031304.
  • 21
    Lovett GM, Kinsman JD. 1990. Atmospheric pollutant deposition to high-elevation ecosystems. Atmos Environ 24:27672786.
  • 22
    Lovett GM, Thompson AW, Anderson JB, Bowser JJ. 1999. Elevational patterns of sulfur deposition at a site in the Catskill Mountains, New York. Atmos Environ 33:617624.
  • 23
    Reiners W, Marks R, Vitousek P. 1975. Heavy metals in subalpine and alpine soils of New Hampshire. Oikos 26:264275.
  • 24
    Rimmer CC, McFarland KP, Evers DC, Miller EK, Aubry Y, Busby D, Taylor RJ. 2005. Mercury concentrations in Bicknell's thrush and other insectivorous passerines in montane forests of northeastern North America. Ecotoxicology 14:223240.
  • 25
    Stankwitz C, Kaste J, Friedland AJ. 2012. Threshold increases in soil lead and mercury from tropospheric deposition across an elevational gradient. Environ Sci Technol 46:80618068.
  • 26
    Evers DC, Han Y-J, Driscoll CT, Kamman NC, Goodale MW, Lambert KF, Holsen TM, Chen CY, Clair TA, Butler T. 2007. Biological mercury hotspots in the northeastern United States and southeastern Canada. Bioscience 57:2943.
  • 27
    Weathers KC, Lovett GM, Likens GE. 1995. Cloud deposition to a spruce forest edge. Atmos Environ 29:665672.
  • 28
    Demers JD, Driscoll CT, Fahey TJ, Yavitt JB. 2007. Mercury cycling in litter and soil in different forest types in the Adirondack region, New York, USA. Ecol Appl 17:13411351.
  • 29
    Klaminder J, Bindler R, Rydberg J, Renberg I. 2008. Is there a chronological record of atmospheric mercury and lead deposition preserved in the mor layer (O-horizon) of boreal forest soils? Geochim Cosmochim Acta 72:703712.
  • 30
    Bank MS, Loftin CS, Jung RE. 2005. Mercury bioaccumulation in northern two-lined salamanders from streams in the northeastern United States. Ecotoxicology 14:181191.
  • 31
    Rimmer C, Miller E, McFarland K, Taylor R, Faccio S. 2009. Mercury bioaccumulation and trophic transfer in the terrestrial food web of a montane forest. Ecotoxicology 19:697709.
  • 32
    Burton TM, Likens GE. 1975. Energy flow and nutrient cycling in salamander populations in the Hubbard Brook Experimental Forest, New Hampshire. Ecology 56:10681080.
  • 33
    Burger J, Gochfeld M. 2001. On developing bioindicators for human and ecological health. Environ Monit Assess 66:2346.
  • 34
    Edmonds ST, Evers DC, Cristol DA, Mettke-Hofmann C, Powell LL, McGann AJ, Armiger JW, Lane OP, Tessler DF, Newell P, Heyden K, O'Driscoll NJ. 2010. Geographic and seasonal variation in mercury exposure of the declining rusty blackbird. Condor 112:789799.
  • 35
    Townsend JM, Driscoll CT. 2013. Red-backed salamander (Plethodon cinereus) as a bioindicator of mercury in terrestrial forests of the northeastern United States. Ecological Indicators 34:168171.
  • 36
    Ollinger SV, Aber JD, Lovett GM, Millham SE, Lathrop RG, Ellis JM. 1993. A spatial model of atmospheric deposition for the northeastern US. Ecol Appl 3:459472.
  • 37
    Miller EK, Vanarsdale A, Keeler GJ, Chalmers A, Poissant L, Kamman NC, Brulotte R. 2005. Estimation and mapping of wet and dry mercury deposition across northeastern North America. Ecotoxicology 14:5370.
  • 38
    Johnson CE, Ruiz-Méndez JJ, Lawrence GB. 2000. Forest soil chemistry and terrain attributes in a Catskills watershed. Soil Sci Soc Am J 64:18041814.
  • 39
    Kudish M. 1971. Vegetational history of the Catskill high peaks. PhD thesis. College of Environmental Science and Forestry, State University of New York, Syracuse, NY, USA.
  • 40
    Driese KL, Reiners WA, Lovett GM, Simkin SM. 2004. A vegetation map for the Catskill Park, NY, derived from multi-temporal Landsat imagery and GIS data. Northeast Nat 11:421442.
  • 41
    Bevier L, Poole AF, Moskoff W. 2004. Veery (Catharus fuscescens). In The Birds of North America Online. Cornell Lab of Ornithology, Ithaca, NY. [cited 2013 August 20]. Available from:
  • 42
    Rimmer CC, McFarland KP, Ellison WG, Goetz JE. 2001. Bicknell's thrush (Catharus bicknelli). In The Birds of North America Online. Cornell Lab of Ornithology, Ithaca, NY. [cited 2013 August 20]. Available from:
  • 43
    Mack DE, Yong W. 2000. Swainson's thrush (Catharus ustulatus). In The Birds of North America Online. Cornell Lab of Ornithology, Ithaca, NY. [cited 2013 August 20]. Available from:
  • 44
    Jones PW, Donovan TM. 1996. Hermit thrush (Catharus guttatus). In The Birds of North America Online. Cornell Lab of Ornithology, Ithaca, NY. [cited 2013 August 20]. Available from:
  • 45
    Townsend JM, Rimmer CC, Townsend AK, McFarland KP. 2011. Sex and age ratios of Bicknell's thrush wintering in Hispaniola. Wilson Journal of Ornithology 123:367372.
  • 46
    Collier B, Wallace GE. 1989. Aging Catharus thrushes by rectrix shape. J Field Ornithol 60:230240.
  • 47
    Hall B, Louis VS, Rolfhus K, Bodaly R, Beaty K, Paterson M, Cherewyk KP. 2005. Impacts of reservoir creation on the biogeochemical cycling of methyl mercury and total mercury in boreal upland forests. Ecosystems 8:248266.
  • 48
    Morel FM, Kraepiel AM, Amyot M. 1998. The chemical cycle and bioaccumulation of mercury. Annu Rev Ecol Syst 29:543566.
  • 49
    Loftin CS, Calhoun AJ, Nelson SJ, Elskus AA, Simon K. 2012. Mercury bioaccumulation in wood frogs developing in seasonal pools. Northeast Nat 19:579600.
  • 50
    Obrist D, Johnson DW, Edmonds RL. 2012. Effects of vegetation type on mercury concentrations and pools in two adjacent coniferous and deciduous forests. J Plant Nutr Soil Sci 175:6877.
  • 51
    Lawson ST, Scherbatskoy TD, Malcolm EG, Keeler GJ. 2003. Cloud water and throughfall deposition of mercury and trace elements in a high elevation spruce-fir forest at Mt. Mansfield, Vermont. J Environ Monit 5:578583.
  • 52
    Smith-Downey NV, Sunderland EM, Jacob DJ. 2010. Anthropogenic impacts on global storage and emissions of mercury from terrestrial soils: Insights from a new global model. J Geophys Res 115:111.
  • 53
    Obrist D, Johnson D, Lindberg S, Luo Y, Hararuk O, Bracho R, Battles J, Dail D, Edmonds R, Monson R. 2011. Mercury distribution across 14 US forests. Part I: Spatial patterns of concentrations in biomass, litter, and soils. Environ Sci Technol 45:39743981.
  • 54
    Hirao Y, Patterson CC. 1974. Lead aerosol pollution in the High Sierra overrides natural mechanism which exclude lead from a food chain. Science 184:989.
  • 55
    Hames RS, Lowe JD, Swarthout SB, Rosenberg KV. 2006. Understanding the risk to neotropical migrant bird species of multiple human-caused stressors: Elucidating processes behind the patterns. Ecol Soc 11:24.
  • 56
    Lovett GM, Tear TH, Evers DC, Findlay SE, Cosby BJ, Dunscomb JK, Driscoll CT, Weathers KC. 2009. Effects of air pollution on ecosystems and biological diversity in the eastern United States. Ann N Y Acad Sci 1162:99135.
  • 57
    Townsend JM, Rimmer CC, Driscoll CT, McFarland KP, Inigo-Elias E. 2012. Mercury concentrations in tropical resident and migrant songbirds on Hispaniola. Ecotoxicology 86:2293.
  • 58
    Schmeltz D, Evers DC, Driscoll CT, Artz R, Cohen M, Gay D, Haeuber R, Krabbenhoft DP, Mason R, Morris K. 2011. MercNet: A national monitoring network to assess responses to changing mercury emissions in the United States. Ecotoxicology 20:17131725.
  • 59
    Burger J, Gochfeld M. 2001. On developing boindicators for human and ecological health. Environ Monit Assess 66:2346.
  • 60
    Longcore JR, Haines TA, Halteman WA. 2007. Mercury in tree swallow food, eggs, bodies, and feathers at Acadia National Park, Maine, and an EPA Superfund site, Ayer, Massachusetts. Environ Monit Assess 126:129143.
  • 61
    Condon AM, Cristol DA. 2009. Feather growth influences blood mercury level of young songbirds. Environ Toxicol Chem 28:395401.
  • 62
    Lewis SA, Furness RW. 1991. Mercury accumulation and excretion in laboratory reared black-headed gull (Larus ridibundus) chicks. Arch Environ Contam Toxicol 21:316320.
  • 63
    Marra PP, Hobson KA, Holmes RT. 1998. Linking winter and summer events in a migratory bird by using stable-carbon isotopes. Science 282:18841886.
  • 64
    McKinnon EA, Fraser KC, Diamond AW, Rimmer CC, Townsend JM. 2012. Stable-hydrogen isotope turnover in red blood cells of two migratory thrushes: Application to studies of connectivity and carry-over effects. J Field Ornithol 83:306314.
  • 65
    Taub FB. 1961. The distribution of the red-backed salamander, Plethodon cinereus, within the soil. Ecology 42:681698.
  • 66
    Kleeberger SR, Werner JK. 1982. Home range and homing behavior of Plethodon cinereus in northern Michigan. Copeia 1982:409415.
  • 67
    Bergeron CM, Bodinof CM, Unrine JM, Hopkins WA. 2010. Bioaccumulation and maternal transfer of mercury and selenium in amphibians. Environ Toxicol Chem 29:989997.
  • 68
    Frisbie MP, Wyman RL. 1991. The effects of soil pH on sodium balance in the red-backed salamander, Plethodon cinereus, and three other terrestrial salamanders. Physiol Zool 64:10501068.
  • 69
    Gilmour CC, Henry EA, Mitchell R. 1992. Sulfate stimulation of mercury methylation in freshwater sediments. Environ Sci Technol 26:22812287.
  • 70
    Pabian SE, Brittingham MC. 2011. Soil calcium availability limits forest songbird productivity and density. Auk 128:441447.
  • 71
    Hames RS, Rosenberg KV, Lowe JD, Barker SE, Dhondt AA. 2002. Adverse effects of acid rain on the distribution of the wood thrush (Hylocichla mustelina) in North America. Proc Natl Acad Sci USA 99:1123511240.