Results 1 to 10 of about 7,869 (211)

The influence of meal size on prey DNA detectability in piscivorous birds. [PDF]

open access: yesMol Ecol Resour, 2017
AbstractMolecular methods allow noninvasive assessment of vertebrate predator–prey systems at high taxonomic resolution by examining dietary samples such as faeces and pellets. To facilitate the interpretation of field‐derived data, feeding trials, investigating the impacts of biological, methodological and environmental factors on prey DNA detection ...
Thalinger B   +3 more
europepmc   +4 more sources

Sex-specific prey partitioning in breeding piscivorous birds examined via a novel, noninvasive approach. [PDF]

open access: yesEcol Evol, 2018
AbstractPiscivorous birds frequently display sex‐specific differences in their hunting and feeding behavior, which lead to diverging impacts on prey populations. Cormorants (Phalacrocoracidae), for example, were previously studied to examine dietary differences between the sexes and males were found to consume larger fish in coastal areas during autumn
Thalinger B   +4 more
europepmc   +4 more sources

Cormorant catch concerns for fishers: estimating the size-selectivity of a piscivorous bird. [PDF]

open access: yesPLoS ONE, 2013
Conflict arises in fisheries worldwide when piscivorous birds target fish species of commercial value. This paper presents a method for estimating size selectivity functions for piscivores and uses it to compare predation selectivities of Great ...
Vladimir Troynikov   +6 more
doaj   +5 more sources

Diet analysis in piscivorous birds: What can the addition of molecular tools offer? [PDF]

open access: yesEcol Evol, 2017
AbstractIn trophic studies on piscivorous birds, it is vital to know which kind of dietary sample provides the information of interest and how the prey can be identified reliably and efficiently. Often, noninvasively obtained dietary samples such as regurgitated pellets, feces, and regurgitated fish samples are the preferred source of information. Fish
Oehm J   +3 more
europepmc   +3 more sources

Digenean trematodes (Trematoda: Digenea) parasitizing the digestive system of the great cormorant (Phalacrocorax carbo) in Hungary [PDF]

open access: yesHelminthologia
Great cormorants (Phalacrocorax carbo) are widespread piscivorous birds, which cause huge economic losses in the fish fauna worldwide. As a consequence of their predatory behaviour, they serve as definitive hosts for many digenean trematodes, and their ...
Gyöngy M.   +4 more
doaj   +2 more sources

First record of Paradilepis scolecina (Rudolphi, 1819) Hsü, 1935 (Cestoda: Gryporhynchidae) in Republic of Korea with notes on ultrastructure and ecological risk in great cormorants, Phalacrocorax carbo sinensis (Staunton, 1796) (Aves: Phalacrocoracidae) [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife
Paradilepis scolecina (Rudolphi, 1819) Hsü, 1935 is a tapeworm widely distributed across the globe that uses piscivorous birds as definitive hosts. Although various piscivorous birds inhabit the Republic of Korea (Korea), this species has not previously ...
Heon Woo Lee   +9 more
doaj   +2 more sources

Population structure of Clinostomum complanatum (Trematoda: Digenea) with new data on haplotype diversity of flukes from Slovakia and Italy [PDF]

open access: yesParasite
The fluke Clinostomum complanatum, a parasite of piscivorous birds, but also reptiles and rarely mammals, has established several foci in the western Palaearctic regions.
Juhásová Ľudmila   +7 more
doaj   +2 more sources

Economic impact of predatory piscivorous birds on small-scale aquaculture farms in Kenya

open access: yesAquaculture Reports, 2019
This study assessed the economic loss due to pond-fish predation by piscivorous birds in small-scale aquaculture systems in western Kenya. Piscivorous birds were surveyed in the field through daily focal scan sampling to record abundance and species ...
Nickson Erick Otieno
doaj   +2 more sources

THE ROLE OF PISCIVOROUS BIRDS OF PODICEPS GENUS IN THE ECOLOGY OF ERYSIPELOTHRIX RHUSIOPATHIAE BACTERIA [PDF]

open access: yesRibogospodarsʹka Nauka Ukraïni, 2015
Purpose. To analyze the role of piscivorous birds of Podiceps genus in the ecology of Erysipelothrix rhusiopathiae bacteria. Methodology. The serological examination of birds was performed using E.
O. Hulai, O. Zhukorskyi
doaj   +2 more sources

Morphological and molecular data on acuariid nematodes in European great cormorants (Phalacrocorax carbo sinensis) and pygmy cormorants (Microcarbo pygmaeus) [PDF]

open access: yesScientific Reports
The family Acuariidae is a speciose group of parasitic nematodes, infecting mostly birds as definitive hosts. This study focused on the characterization of two species of acuariids, collected in two different species of piscivorous birds, the European ...
Perla Tedesco   +6 more
doaj   +2 more sources

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