Results 21 to 30 of about 18,269 (201)

Diets of shags Phalacrocorax aristotelis and cormorants P. carbo in Norway and possible implications for gadoid stock recruitment [PDF]

, 1990
The diets of shags and cormorants were studied in Norway through analyses of regurgitated pellets. Although this method has many limitations, indications were that both species rely heavily on small gadoids (Gadidae) and sand eels (Ammodytidae) for food ...
Barrett, R. T., Loen, J., Montevecchi, William A., Røv, N.   +3 more
core   +1 more source

Babesia ugwidiensis, a new species of Avian piroplasm from Phalacrocoracidae in South Africa

Parasite, 2012
A new species of haematozoa, Babesia ugwidiensis sp. nov. from a cormorant is described. This is the first species of piroplasm to be recorded from the Phalacrocoracidae and the relationship of this parasite to other Babesia spp.
Peirce M.A., Parsons N.J.
doaj   +1 more source

Size matters: the value of small populations for wintering waterbirds [PDF]

, 2004
Protecting systematically selected areas of land is a major step towards biodiversity conservation worldwide. Indeed, the identification and designation of protected areas more often than not forms a core component of both national and international ...
Atkinson-Willes G. L., Boyd H., Cranswick P. A., Freitag S., Fuller R. J., Hocklings M., IUCN, Jackson S. F., JNCC, JNCC, JNCC, Kevin J. Gaston, Mayr E., Melanie Kershaw, Pollitt M. S., Pollitt M. S., Ramsar Convention Bureau, Ramsar Convention Bureau, Ramsar Convention Bureau, Ramsar Convention Bureau, Ramsar Convention Bureau, Rose P., Rose P. M., Sarah F. Jackson, Scott D. A., Stroud D. A., Stroud D. A.   +26 more
core   +1 more source

Estimating Waterbird Abundance on Catfish Aquaculture Ponds Using an Unmanned Aerial System

Human-Wildlife Interactions, 2019
In this study, we examined the use of an unmanned aerial system (UAS) to monitor fish-eating birds on catfish (Ictalurus spp.) aquaculture facilities in Mississippi, USA.
Paul C. Burr, Sathishkumar Samiappan, Lee A. Hathcock, Robert J. Moorhead, Brian S. Dorr   +4 more
doaj   +1 more source

Anguillicola crassus larvae in cormorant's prey fish in Vistula Lagoon, Poland

Knowledge and Management of Aquatic Ecosystems, 1998
The presence of A. crassus larvae in herring, stickleback, perch, ruffe, pike-perch, bream and roach regurgitated by cormorants from a large breeding colony at Katy Rybackie in Vistula Lagoon, Poland, was investigated.
WLASOW T., GOMULKA P., MARTYNIAK A., BORON S., HLIWA P., TERLECKI J., SZYMANSKA U.   +6 more
doaj   +1 more source

Fisheries restoration potential for a large lake ecosystem: using ecosystem models to examine dynamic relationships between walleye, cormorant, and perch

Ecology and Society, 2015
Increased population sizes of Double-crested Cormorants (Phalacrocorax auritus) and small-bodied (
Andrea M. McGregor, Christopher L. Davis, Carl J. Walters, Lee Foote   +3 more
doaj   +1 more source

The attraction of Tremex apicalis (Hymenoptera, Siricidae, Tremecinae) and its parasitoid Ibalia japonica (Hymenoptera, Ibaliidae) to the fungus Cerrena unicolor [PDF]

Journal of Hymenoptera Research, 2019
Woodwasps (Hymenoptera: Siricidae) are saproxylic insects and a common forest pest. Siricid woodwasps are classified into two subfamilies: Siricinae and Tremecinae.
Kazumu Kuramitsu, Teruhito Ishihara, Aki Sugita, Thitaree Yooboon, Barry Lustig, Yuko Matsumori, Hideo Yamada, Natsuko Kinoshita   +7 more
doaj   +3 more sources

Invasive parasites and global change: Evidence for the recent and rapid spillover of a potential pathogen of tilapias with a complex, three-host life cycle

Heliyon, 2023
Biological invasions pose a serious threat to local flora and fauna and have negative impacts on ecosystems. Invasive parasites can also cause severe losses in aquaculture.
Nadav Davidovich, Daniel Yasur-Landau, Adi Behar, Tobia Pretto, Tomáš Scholz   +4 more
doaj   +1 more source

The influence of rivers on seabird foraging ecology

Biological Reviews, EarlyView.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais, Andre Chiaradia, Richard D. Reina   +2 more
wiley   +1 more source

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

Biological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief, Sandra Bouwhuis, Anja Globig, Anne Günther, Wouter Courtens   +4 more
wiley   +1 more source