The Impact of Mercury Exposure on the Common Loon (Gavia immer) Population in the Adirondack Park, New York, USA

Waterbirds ◽  
2014 ◽  
Vol 37 (sp1) ◽  
pp. 133-146 ◽  
Author(s):  
Nina Schoch ◽  
Michale J. Glennon ◽  
David C. Evers ◽  
Melissa Duron ◽  
Allyson K. Jackson ◽  
...  
Keyword(s):  
New York ◽  
Mercury Exposure ◽  
Adirondack Park ◽  
Gavia Immer ◽  
Common Loon ◽  
The Common ◽  
The Impact

Wildlife Criterion Value for the Common Loon (Gavia immer) in the Adirondack Park, New York, USA

Waterbirds ◽  
2014 ◽  
Vol 37 (sp1) ◽  
pp. 76-84 ◽  
Author(s):  
Nina Schoch ◽  
Allyson K. Jackson ◽  
Melissa Duron ◽  
David C. Evers ◽  
Michale J. Glennon ◽  
...  
Keyword(s):  
New York ◽  
Adirondack Park ◽  
Gavia Immer ◽  
Common Loon ◽  
The Common

The Effects of Lakeshore Development on Common Loon (Gavia immer) Productivity in the Adirondack Park, New York, USA

Waterbirds ◽  
2014 ◽  
Vol 37 (sp1) ◽  
pp. 94-101 ◽  
Author(s):  
Carolyn A. Spilman ◽  
Nina Schoch ◽  
William F. Porter ◽  
Michale J. Glennon
Keyword(s):  
New York ◽  
Adirondack Park ◽  
Gavia Immer ◽  
Common Loon ◽  
Lakeshore Development

scholarly journals Additional Data and Perspectives on Interspecific Aggression in the Common Loon, Gavia immer

2011 ◽  
Vol 125 (1) ◽  
pp. 61
Author(s):  
Martin L. Morton ◽  
Maria E. Pereyra
Keyword(s):  
Additional Data ◽  
Gavia Immer ◽  
Common Loon ◽  
Interspecific Aggression ◽  
Aythya Americana ◽  
The Common

We witnessed the killing of a female Redhead (Aythya Americana) by a male Common Loon (Gavia immer). The wound was delivered into the abdomen from below, and death occurred because of a torn, hemorrhaging liver. This same Common Loon also threatened a female Ring-necked Duck (Aythya collaris) with ducklings. We hypothesize that interspecific aggression by loons might be energetically costly but is sometimes adaptive because it deters predators.

Dynamics of an Aggressive Vocalization in the Common Loon (Gavia immer): A Review

Waterbirds ◽  
2014 ◽  
Vol 37 (sp1) ◽  
pp. 37-46 ◽  
Author(s):  
John N. Mager ◽  
Charles Walcott
Keyword(s):  
Gavia Immer ◽  
Common Loon ◽  
The Common

Mercury exposure in songbird communities along an elevational gradient on Whiteface Mountain, Adirondack Park (New York, USA)

Ecotoxicology ◽  
2020 ◽  
Vol 29 (10) ◽  
pp. 1830-1842 ◽  
Author(s):  
Amy K. Sauer ◽  
Charles T. Driscoll ◽  
David C. Evers ◽  
Evan M. Adams ◽  
Yang Yang
Keyword(s):  
New York ◽  
Elevational Gradient ◽  
Mercury Exposure ◽  
Adirondack Park ◽  
Whiteface Mountain

scholarly journals Plunging floater survival causes cryptic population decline in the Common Loon

The Condor ◽  
2020 ◽  
Author(s):  
Walter H Piper ◽  
Jason Grear ◽  
Brian Hoover ◽  
Elaina Lomery ◽  
Linda M Grenzer
Keyword(s):  
New England ◽  
Adult Population ◽  
Population Decline ◽  
Gavia Immer ◽  
Common Loon ◽  
Vital Rates ◽  
Geographic Ranges ◽  
The Common ◽  
Anthropogenic Threats ◽  
Territory Occupancy

Abstract Populations of many vertebrates are declining and geographic ranges contracting, largely as a consequence of anthropogenic threats. Many reports of such decline, however, lack the breadth and detail to narrow down its causes. Here we describe population decline in the Common Loon (Gavia immer), a charismatic aquatic bird, based on systematic resighting and measurement of a marked population. During our 27-year investigation, age-adjusted chick mass has fallen by 11%, mortality among young and old chicks has increased by 31% and 82%, respectively, and fledging success has declined by 26%. Meanwhile, the return rate of marked nonbreeders (“floaters”) has plunged by 53%, and the adult population overall has declined by 22%. Consistent with the thinning ranks of floaters, the rate of territory eviction has decreased by 52% during the study. Despite the decline in floaters, territory occupancy remains unchanged. However, a matrix model, updated with recent estimates for breeding success, juvenile survival, and senescence, yields a recalculated deterministic population growth rate (λ) of 0.94 for our study population, which suggests that declines in vital rates could lead to a loss of 52% of the current population and a decline of 37% in territory occupancy by 2031. Lack of data on floaters in other upper Midwest and New England loon populations leaves their status in doubt.

PATTERNS OF COMMON LOON (GAVIA IMMER) MERCURY EXPOSURE, REPRODUCTION, AND SURVIVAL IN WISCONSIN, USA

1998 ◽  
Vol 17 (2) ◽  
pp. 184 ◽  
Author(s):  
Michael W. Meyer ◽  
David C. Evers ◽  
Jerry J. Hartigan ◽  
Paul S. Rasmussen
Keyword(s):  
Mercury Exposure ◽  
Gavia Immer ◽  
Common Loon

Patterns of common loon (Gavia immer) mercury exposure, reproduction, and survival in wisconsin, USA

1998 ◽  
Vol 17 (2) ◽  
pp. 184-190 ◽  
Author(s):  
Michael W. Meyer ◽  
David C. Evers ◽  
Jerry J. Hartigan ◽  
Paul S. Rasmussen
Keyword(s):  
Mercury Exposure ◽  
Gavia Immer ◽  
Common Loon
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