Results 71 to 80 of about 2,883 (198)
The Vee Formation of Canada Geese [PDF]
THE organized vee formations of geese and other waterfowl have drawn attention from sportsmen and scientists for years. Lissaman and Shollenberger (1970) proposed that birds may fly in a vee to capitalize on upward rising components of the wingtip vortex currents generated by the wings of neighboring birds flying to the front and side. Franzisket (1951)
openaire +1 more source
ABSTRACT Objective We provide a fine‐grained portrait of age‐graded differences in Humility across the lifespan. Specifically, we shed light on year‐by‐year differences and explore differences‐in‐differences in the wake of the COVID pandemic. Methods We used large‐scale cross‐sectional data (n = 2,025,004) and employed multigroup confirmatory factor ...
Wendy W. L. Cheung +2 more
wiley +1 more source
Food availability is the primary limitation for terrestrial Arctic predators, many of which rely on rodents that fluctuate in abundance over a 3–5-year period.
Ryan S. McDonald +2 more
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ABSTRACT Climate change associated transformations of Arctic marine ecosystems are having detrimental impacts on Arctic endemic marine mammals. However, warming conditions are providing new habitats for temperate marine mammals, some of which are expanding into Arctic regions, posing a threat of novel pathogen introduction and disease transmission.
Luca A. Schick +11 more
wiley +1 more source
The extent to which species are plastic in the timing of their reproductive events relative to phenology suggests how climate change might affect their demography.
Rodney W. Brook +3 more
doaj +1 more source
Records of Longevity in Canada Geese [PDF]
Records of Longevity in Canada Geese.-Two records of longevity in Canada Geese (Branta canadensis) were secured from banded birds killed during the 1955 waterfowl hunting season on the Swan Creek Wildlife Experiment Station eight miles northwest of Allegan, in southwestern Michigan.
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Abstract Politicians' personality is believed to play a central role in their electoral success. It is unclear, however, how important different traits are to voters and how the impact of personality compares to that of other well‐studied individual characteristics of politicians, such as gender, age, and political experience.
Thomas Bergeron +4 more
wiley +1 more source
A comparison of field methods to estimate Canada goose abundance
We conducted a 2‐year study (2014–2015) in North Carolina, USA, to compare precision and efficiency between 2 methods used to estimate Canada goose (Branta canadensis) abundance.
Mark A. McAlister +4 more
doaj +1 more source
Design considerations for breeding waterfowl surveys
This study evaluated how different survey designs affect the accuracy and precision of breeding waterfowl population estimates in Iowa's Prairie Pothole Region. Using aerial survey data from 2016–2018, we found that conducting at least 2 visits per season reduced bias in pair estimates, particularly for wood ducks and blue‐winged teal, while mallard ...
Tyler M. Harms +2 more
wiley +1 more source
Nest-Site Selection and Nesting Ecology of Giant Canada Geese in Central Tennessee
Little information is available on giant Canada goose (Branta canadensis maxima) nest-site selection on isolated nesting ponds. We monitored 46 island and 72 shoreline nests in the Upper Cumberland (UC) region of central Tennessee during 2002 and 2003 ...
Jason S. Carbaugh +2 more
doaj +1 more source

