Results 61 to 70 of about 11,966 (230)

Foraging ecology of fall-migrating shorebirds in the Illinois River valley. [PDF]

PLoS ONE, 2012
Populations of many shorebird species appear to be declining in North America, and food resources at stopover habitats may limit migratory bird populations.
Randolph V Smith, Joshua D Stafford, Aaron P Yetter, Michelle M Horath, Christopher S Hine, Jeffery P Hoover   +5 more
doaj   +1 more source

High daily energy expenditure of incubating shorebirds on High Arctic tundra: a circumpolar study [PDF]

, 2003
1. Given the allometric scaling of thermoregulatory capacity in birds, and the cold and exposed Arctic environment, it was predicted that Arctic-breeding shorebirds should incur high costs during incubation.
Amat, Andreev, Cartar, Castro, Drent, Drent, G. H. Visser, Gessaman, Grönlund, Grönlund, H. Schekkerman, Hammond, Hicklin, Hötker, I. Tulp, J. Jukema, J. Reneerkens, Kersten, Kersten, Kirkwood, Lifson, Morrison, Morrison, Morrison, Nagy, Piersma, Piersma, R. H. Drent, R. I. G. Morrison, Schekkerman, Speakman, T. Piersma, Tatner, Tinbergen, Tulp, Verboven, Visser, Wiersma, Å. Lindström   +38 more
core   +4 more sources

Beyond Sexual Selection: Natural Selection Related Camouflage and Thermoregulation Shape Sexual Color Dimorphism in Diploderma Lizards

Integrative Zoology, EarlyView.
Integrating comparative spectrometry, image analysis, and thermal modeling, we reveal that (1) females optimize crypsis via background matching, (2) males prioritize high‐contrast disruptive patterning at a significant thermoregulatory cost (reduced solar heat gain), and (3) habitat‐specific monomorphism in Diploderma slowinskii underscores ecological ...
Yuning Cao, Lin Shi, Yin Qi
wiley   +1 more source

Variation From an Unknown Source: Large Inter-individual Differences in Migrating Black-Tailed Godwits

Frontiers in Ecology and Evolution, 2019
Variation in migratory behavior is the result of different individual strategies and fluctuations in individual performances. A first step toward understanding these differences in migratory behavior among individuals is, therefore, to assess the ...
Mo A. Verhoeven, A. H. Jelle Loonstra, Nathan R. Senner, Nathan R. Senner, Alice D. McBride, Christiaan Both, Theunis Piersma, Theunis Piersma   +7 more
doaj   +1 more source

Managing the Threat of Subsidized Predators for a Threatened Shorebird

Animal Conservation, EarlyView.
Subsidized predators—native predators that have become more common due to human activities—challenge the persistence of many at‐risk prey species and require creative solutions beyond lethal predator control. In an 8‐year study, we placed small wire cages over western snowy plover nests that allow passage of plovers, but not their predators, and ...
R. R. Swaisgood, R. L. Smith, J. G. Schuetz, T. Wooten, L. I. Vilchis   +4 more
wiley   +1 more source

Measuring the Recreational Use Value of Migratory Shorebirds on the Delaware Bay [PDF]

In this article we estimate the recreational use value of household trips to view shorebirds during the annual horseshoe crab/shorebird migration on the Delaware Bay. We use contingent valuation to estimate the value of day and overnight trips separately
Edwards, Peter E.T., Myers, Kelley H., Parsons, George R.   +2 more
core   +4 more sources

Refinements in adipose tissue biopsy collection in shorebirds: effect on pain, wound healing, and mass gain

Journal of Field Ornithology, 2023
Non-lethal methods to sample adipose tissues from fat depots in small birds are highly valuable as a time integrated sample matrix for ecotoxicology and ecophysiology research.
Christy Morrissey, Kurtis Swekla
doaj  

Investigating avian influenza infection hotspots in old-world shorebirds. [PDF]

PLoS ONE, 2012
Heterogeneity in the transmission rates of pathogens across hosts or environments may produce disease hotspots, which are defined as specific sites, times or species associations in which the infection rate is consistently elevated.
Nicolas Gaidet, Ahmed B Ould El Mamy, Julien Cappelle, Alexandre Caron, Graeme S Cumming, Vladimir Grosbois, Patricia Gil, Saliha Hammoumi, Renata Servan de Almeida, Sasan R Fereidouni, Giovanni Cattoli, Celia Abolnik, Josphine Mundava, Bouba Fofana, Mduduzi Ndlovu, Yelli Diawara, Renata Hurtado, Scott H Newman, Tim Dodman, Gilles Balança   +19 more
doaj   +1 more source

When and why to give shorebirds a head start

Conservation Biology, EarlyView.
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson, Alex Nicol‐Harper, Rebecca Lee, Nigel S. Jarrett, Geoff M. Hilton   +4 more
wiley   +1 more source

Habitat alteration and fecal deposition by geese alter tundra invertebrate communities: Implications for diets of sympatric birds.

PLoS ONE, 2022
Over the last 60 years, Arctic goose populations have increased while many sympatric tundra nesting bird populations have declined. Hyperabundant geese have well-documented effects on tundra habitats, which can alter habitat use by sympatric bird species.
Scott A Flemming, Paul A Smith, Lisa V Kennedy, Alexandra M Anderson, Erica Nol   +4 more
doaj   +1 more source