Results 81 to 90 of about 8,599 (256)
Plumage and ecology of cormorants
, 2017 The paper draws on data attending the etho-ecology of four species of cormorants (Phalacrocoracidae) in support of an hypothesis for the adaptive significance of the predominantly dark plumage of these birds.
Frost, P.G.H. +3 more
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Through Birds' Eyes: What does vision tell us about foraging in cormorants?
, 2007 Great Cormorants _Phalacrocorax carbo_ are regarded as visually-guided, pursuit-dive foragers, so it would be expected that they have excellent vision much like aerial predators, such as hawks which detect and pursue prey from a distance.
Graham Martin
core +1 more source
ASSESSMENT METHODS OF CORMORANT (Phalacrocorax carbo) DIET [PDF]
Croatian Journal of Fisheries, 2008 Various cormorant diet assessment methods are used to assess their daily meal in order to evaluate, using these and other data, the damage to commercial fish farms as well as the damage on open waters caused by cormorants.
Krešimir Terzić +3 more
doaj
Human-Wildlife Interactions, 2017 We compared 2 sampling strategies designed to estimate abundance of double-crested cormorants (Phalacrocorax auritus, hereafter cormorants) on aquaculture ponds in western Mississippi.
Aaron T. Pearse +3 more
doaj +1 more source
Polar Biology, 2014 Understanding the dynamics and causes of population trends are essential for seabird conservation. Long-term studies of seabirds at high-latitude (Antarctic, sub-Antarctic and Arctic) regions have shown contrasting species-specific trends in population ...
A. Raya Rey +4 more
semanticscholar +1 more source
The Rise of Double-Crested Cormorants
, 2017 For centuries, people have viewed cormorants negatively. In classical literature, the word cormorant represented greed and gluttony. However, natural resource professionals have long recognized the ecological value of all wildlife, and cormorants are no ...
Dorr, Brian S., Fielder, Dave
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Historical diversity of cormorants and shags from Amchitka Island, Alaska [PDF]
, 1991 International audienceWe studied the historical biodiversity of cormorants and shags in the central Aleutians by examining the presence and abundance of bones deposited in two large Aleut middens located on Amchitka Island, Alaska.
Siegel-Causey, Douglas +2 more
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Effects of the 1997-1998 El Niño and 1998-1999 La Niña events on breeding waterbirds and sea lions in the Upper Gulf of California, México [PDF]
Geofísica Internacional, 2003 During 1998 and 1999 I monitored waterbirds nesting on Isla San Jorge, at La Purinera and on Isla Montague, in the northern Gulf of California, as well as sea lions on Isla San Jorge. During El Niño the brown boobies on San Jorge ceased breeding and left
Eric Mellink
doaj
[First nesting of Phalacrocorax pygmeus in Mantua province (Lombardy, N Italy)]
Rivista Italiana di Ornitologia - Research in Ornithology, 2018 [The Authors describe the first Pygmy Cormorants nesting in the Province of Mantua, in the “Valli del Mincio” Natural Reserve, in 2014 and 2015.] [Article in Italian]
Nunzio Grattini +2 more
doaj +1 more source