These are the Lady Beetle (Coccinellidae) specimens found in the Fairbanks Museum and Planetarium... more These are the Lady Beetle (Coccinellidae) specimens found in the Fairbanks Museum and Planetarium in St. Johnsbury, Vermont. Specimens are mainly from three collections: Bruce Parker, J. Boone, and the Margaret Skinner Collections. These were all examined and digitized as part of the Vermont Atlas of Life - Vermont Lady Beetle Atlas.
Ambient noise is an integral component of natural environments, but it also creates challenges fo... more Ambient noise is an integral component of natural environments, but it also creates challenges for avian monitoring programs. Ambient noise can mask bird vocalizations from observers during point counts, which may lead to systematic undercounting of birds in noisy environments. Here, we estimate detection probability and population size in models that either account for or omit the influence of ambient noise. We used data for four bird species, from 2228 point counts that were conducted during the 2019 Mountain Birdwatch field season. Community scientists assessed ambient noise using a simple scale. Despite relatively quiet conditions at sampling locations (x = 2.48), our information theoretical approach favored N-mixture models that incorporated ambient noise into the detection function for all four species. At the noisiest sampling locations, our models predicted detection probabilities that were as low as 10% for some species. Accounting for ambient noise resulted in a modest, me...
These are the Lady Beetle (Coccinellidae) specimens found in the Fairbanks Museum and Planetarium... more These are the Lady Beetle (Coccinellidae) specimens found in the Fairbanks Museum and Planetarium in St. Johnsbury, Vermont. Specimens are mainly from three collections: Bruce Parker, J. Boone, and the Margaret Skinner Collections. These were all examined and digitized as part of the Vermont Atlas of Life - Vermont Lady Beetle Atlas.
Ambient noise is an integral component of natural environments, but it also creates challenges fo... more Ambient noise is an integral component of natural environments, but it also creates challenges for avian monitoring programs. Ambient noise can mask bird vocalizations from observers during point counts, which may lead to systematic undercounting of birds in noisy environments. Here, we estimate detection probability and population size in models that either account for or omit the influence of ambient noise. We used data for four bird species, from 2228 point counts that were conducted during the 2019 Mountain Birdwatch field season. Community scientists assessed ambient noise using a simple scale. Despite relatively quiet conditions at sampling locations (x = 2.48), our information theoretical approach favored N-mixture models that incorporated ambient noise into the detection function for all four species. At the noisiest sampling locations, our models predicted detection probabilities that were as low as 10% for some species. Accounting for ambient noise resulted in a modest, me...
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Papers by Julia Pupko