Results 11 to 20 of about 7,869 (211)

Essential trace (Zn, Cu, Mn) and toxic (Cd, Pb, Cr) elements in the liver of birds from Eastern Poland [PDF]

open access: yesActa 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   +3 more sources

An Integrative Approach to Assessing the Impact of Mercury (Hg) on Avian Behaviour: From Molecule to Movement [PDF]

open access: yesJournal of Xenobiotics
Mercury (Hg) pollution is a widespread ecological threat with sublethal effects on wildlife. Birds, due to their ecological diversity and sensitivity, serve as effective models for evaluating the behavioural impacts of Hg exposure.
Dora Bjedov   +6 more
doaj   +2 more sources

18S rRNA gene metabarcoding for investigation of gastrointestinal parasite diversity in great cormorants [PDF]

open access: yesScientific Reports
The great cormorant (Phalacrocorax carbo) is a migratory, fish-eating bird that may act as a carrier for various pathogens, raising potential ecological and public health concerns.
Subin Lee   +7 more
doaj   +2 more sources

Piscivore water bird diversity at freshwater tributaries of Zambezi River, Namibia

open access: yesKoedoe: African Protected Area Conservation and Science
Piscivorous waterbirds enhance wetlands’ diversity and have been seen as bio-indicators of ecological conditions within ecosystems. In addition to their ecological contribution, to wetlands functions and ecosystem services, these birds have been reported
Lucas P. Rutina   +2 more
doaj   +2 more sources

Helminth parasites of piscivorous birds from lakes in the south of Chile [PDF]

open access: yesMemorias do Instituto Oswaldo Cruz, 1993
P. Torres   +5 more
doaj   +4 more sources

EXPERIMENTAL BOLBOPHORUS DAMNIFICUS (DIGENEA: BOLBOPHORIDAE) INFECTIONS IN PISCIVOROUS BIRDS [PDF]

open access: yesJournal 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

Feces from Piscivorous and Herbivorous Birds Stimulate Differentially Phytoplankton Growth [PDF]

open access: yesWater, 2019
Aquatic birds may impact shallow ecosystems via organic and nutrient enrichment with feces. Such input may alleviate nutrient limitation, unbalance their ecological stoichiometry, and stimulate primary production. Herbivorous and piscivorous birds may produce different effects on aquatic ecosystems due to different physiology, diet and feces elemental ...
Petkuviene, Jolita   +6 more
openaire   +2 more sources

Stomach contents of the great cormorant Phalacrocorax carbo inhabiting northeastern Poland

open access: yesArchives 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

Winter Behavior of Juvenile Brown Trout in a Changing Climate: How Do Light and Ice Cover Affect Encounters with Instream Predators?

open access: yesFishes, 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

open access: yesForest 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

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