Results 21 to 30 of about 1,924 (184)

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

Memorias do Instituto Oswaldo Cruz, 1993
P. Torres, R. Schlatter, A. Montefusco, W. Gesche, E. Ruiz, A. Contreras   +5 more
doaj   +4 more sources

Spatio-temporal distributions of piscivorous birds in a subarctic sound during the nonbreeding season

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 ...
Mary Anne Bishop, Ali Arab
exaly   +2 more sources

Cadaveric Study of the Juvenile Grey Heron's (Ardea cinerea) Nasal Cavity and Associated Structures Through Computed Tomography and Anatomical Sections. [PDF]

Vet Med Sci
This study provides the first comprehensive anatomical and CT characterization of the nasal cavity of the grey heron, enabling the identification of its major components and spatial organization. Correlative evaluation of multiplanar CT images with anatomical sections proved highly effective for delineating landmarks, offering a reference for clinical ...
Roldán-Medina N, Paz-Oliva P, Ros Á, Melián C, Pérez E, Morales-Espino A, Morales M, Suárez-Cabrera F, Jaber JR.   +8 more
europepmc   +2 more sources

A Guild-Based Ecological Assessment: Integrating Multi-Model Approaches to Reveal Key Environmental Associations for Waterbirds in Nansi Lake, China. [PDF]

Ecol Evol
In Nansi Lake, waterbird guild densities were consistently linked to environmental gradients, with negative responses to nutrients and sediment variables, but positive responses to fish diversity and periphyton. Piscivores specifically favored high dissolved oxygen and low nitrogen conditions.
Jiang S, Yang Y, Sun F, Zheng X, He W, Tang M, Chen J, Ma S, Li G.   +8 more
europepmc   +2 more sources

Spatial-temporal patterns of perfluoroalkyl substances in the biota of the Laurentian Great Lakes: A meta-analysis. [PDF]

J Environ Qual
Abstract To better understand the dynamics of per‐ and polyfluoroalkyl substances (PFAS) in complex freshwater ecosystems, we performed a systematic meta‐analysis of PFAS distributions and spatiotemporal variance in biota of the Laurentian Great Lakes watersheds.
Martin POL, Zachritz AM, Adey AK, Klepinger SM, Conard WM, Lamberti GA, Miranda DA.   +6 more
europepmc   +2 more sources

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, Ulikowski Dariusz, Kalinowska Krystyna   +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?

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, Veronika Åsman, Larry Greenberg, Martin Österling, Johan Watz, Eva Bergman   +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, Reda Irsenaite, Ricardas Taraskevicius, Dalyte Matuleviciute , Jurga Motiejunaite   +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., Pote, Linda M., King, D. Tommy   +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, Marieke Keller, Jacques Navez, Hendrik V Winter, Martin de Graaf, Willy Baeyens   +5 more
doaj   +1 more source