Results 31 to 40 of about 514,060 (181)
Deep Sea Research Part II: Topical Studies in Oceanography, 2018 Abstract Understanding bird distributions outside of the breeding season may help to identify important criteria for winter refuge. We surveyed marine birds in Prince William Sound, Alaska, USA over nine winters from 2007 to 2016. Our objectives were twofold: to examine the seasonal patterns of piscivorous species overwintering in Prince William ...
Jessica Stocking +2 more
openaire +2 more sources
Journal of Helminthology, 2023 Adult specimens of Andracantha gravida (Alegret, 1941) were recorded from the intestines of the double-crested cormorant Nannopterum auritus (Lesson) (type host) and brown pelican Pelecanus occidentalis L. in two localities from Mexico: Celestún, Yucatan
M. García-Varela +3 more
semanticscholar +1 more source
Stomach contents of the great cormorant Phalacrocorax carbo inhabiting northeastern Poland
Archives of Polish Fisheries, 2021 The contents of 174 stomachs of great cormorants (Phalacrocorax carbo) inhabiting northeastern Poland were analyzed. Fish and hard parts of fish were found in most of the stomachs. (87.4%). Moreover, nematode and tapeworm parasites were observed in 76.4%
Traczuk Piotr +2 more
doaj +1 more source
Ornis Hungarica, 2023 The adaptation to an aquatic lifestyle has occurred several times during the evolution of birds. The transition from a terrestrial to an aquatic lifestyle requires enormous changes in morphology, physiology, and behaviour.
Tibor Pecsics, T. Csörgő
semanticscholar +1 more source
Fishes, 2023 During winter, stream fishes are vulnerable to semi-aquatic predators like mammals and birds and reduce encounters by being active in darkness or under surface ice. Less is known about the behavior of fishes towards instream piscivorous fishes.
Karl Filipsson +5 more
doaj +1 more source
Significant impact of allochthonous nutrient loads on microarthropods in forest soils
Forest Systems, 2022 Aim of study: To investigate the impact of allochthonous material from piscivorous birds on forest soil microarthropod communities. Area of study: Six study zones in the Curonian Spit peninsula (western Lithuania) were designated in Pinus sylvestris ...
Audrone Petrauskiene +4 more
doaj +1 more source
EXPERIMENTAL BOLBOPHORUS DAMNIFICUS (DIGENEA: BOLBOPHORIDAE) INFECTIONS IN PISCIVOROUS BIRDS [PDF]
Journal of Wildlife Diseases, 2009 In order to determine potential definitive hosts of the digenetic trematode, Bolbophorus damnificus, two American White Pelicans (Pelecanus erythrorhynchos), two Double-crested Cormorants (Phalacrocorax auritus), two Great Blue Herons (Ardea herodias), and two Great Egrets (Ardea alba) were captured, treated with praziquantel, and fed channel catfish ...
Doffitt, Cynthia M. +2 more
openaire +2 more sources
Connectivity between migrating and landlocked populations of a diadromous fish species investigated using otolith microchemistry. [PDF]
PLoS ONE, 2013 Smelt Osmerus eperlanus has two different life history strategies in The Netherlands. The migrating population inhabits the Wadden Sea and spawns in freshwater areas.
Ingrid Tulp +5 more
doaj +1 more source
Frontiers in Sustainable Food Systems, 2022 Waterbirds cause substantial fish-stock losses in open aquaculture systems, particularly in developing countries where fish-ponds are smaller and predator control methods largely manual or under-resourced.
Nickson Erick Otieno, Erick Shidavi
doaj +1 more source
Essential trace (Zn, Cu, Mn) and toxic (Cd, Pb, Cr) elements in the liver of birds from Eastern Poland [PDF]
Acta Veterinaria, 2012 We have focused our study on the concentrations of essential heavy metals (Zn, Cu and Mn) and non-essential trace metals (Pb, Cd and Cr) in the livers of birds from Eastern Poland. The largest mean amount of Zn - as much as 279 mg/kg dry mass (d.m.) -
Komosa A., Kitowski I., Komosa Z.
doaj +1 more source