Results 41 to 50 of about 2,988 (149)
ASSESSMENT METHODS OF CORMORANT (Phalacrocorax carbo) DIET [PDF]
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
A study of louse flies in the United Kingdom, Isle of Man, and Ireland found 212 different interactions between Hippoboscidae and their hosts, of which 70 were previously unrecorded. No louse flies were found on aquatic species of birds. Host‐switching to gulls (Laridae) has occurred during a period in which these species have started relying on ...
Denise C. Wawman +2 more
wiley +1 more source
New perspectives on head and neck allometry and ecomorphology in tetrapods
ABSTRACT The skull and neck are vital parts of the body, influencing feeding ecology, habitat exploitation and locomotion. Numerous studies have therefore sought to understand how the size of these segments vary with ecology and scale with overall body size.
Alice E. Maher +4 more
wiley +1 more source
CORMORANT (Phalacrocorax carbo sinensis) AND DAMAGES ON FISH STOCK CAUSED BY CORMORANT HYPER POPULATION [PDF]
The results of recent foreign and domestic investigations on the damages found on the fish stock of cyprinid ponds and rivers caused by hyper population of cormorants are presented.
Krešimir Pažur
doaj
Swimming modes affect dive durations in diving birds
Dive duration and body mass are positively correlated across air‐breathing vertebrate species, but other factors affecting dive duration are inadequately studied. Here, we examined the effect of a previously overlooked factor, swimming mode, using phylogenetically informed statistics with data on the diving capabilities of 53 species of avian divers ...
Hiroya Matsushita, Yuuki Y. Watanabe
wiley +1 more source
In-air hearing of the great cormorant (Phalacrocorax carbo)
Many aquatic birds use sounds extensively for in-air communication. Regardless of this, we know very little about their hearing abilities. The in-air audiogram of a male adult great cormorant (Phalacrocorax carbo) was determined using psychophysical ...
Alyssa Maxwell +5 more
doaj +1 more source
Waterfowl hunting plays a complex role in the conservation of waterbird populations. While hunting can provide conservation benefits, excessive or unregulated hunting may threaten waterbird populations, particularly for species with declining numbers or high sensitivity to human disturbances.
Tatiana Tronel +3 more
wiley +1 more source
We documented a novel predator–predator commensal foraging interaction between cobia (Rachycentron canadum) and a southern stingray (Hypanus americanus) in a shallow coastal habitat of Biscayne Bay, Florida. Using drone‐based observations, we recorded a 7‐min sequence in which a cobia closely tracked the stingray's movements and fed on prey disturbed ...
Julia Saltzman +4 more
wiley +1 more source
Management of Double-Crested Cormorants to Improve Sport Fisheries in Michigan: Three Case Studies
Impacts of double-crested cormorants (Phalacrocorax auritus) to fisheries have been documented, but evaluation of the process and outcomes of cormorant management to reduce impacts on fisheries is lacking. We provide a synthesis of adaptive management of
Brian S. Dorr +3 more
doaj +1 more source

