Results 41 to 50 of about 10,514 (240)

Efficacy of afoxolaner (NexGard®) against natural infestations with Trichodectes canis in dogs under field conditions

open access: yesParasites & Vectors, 2022
Background Trichodectes canis is a small chewing louse found globally that primarily infests dogs. Limited information is available on the efficacy of isoxazolines against infestation with the chewing louse.
Andrei Daniel Mihalca   +4 more
doaj   +1 more source

Efficacy of Eprin® endectocide for use in cattle against nematodes and arthropod parasites [PDF]

open access: yesНауковий вісник ветеринарної медицини, 2021
Antiparasitic treatment and prophylactic measures in dairy cattle breeding are often not carried out on time due to the opposition of managers and owners of farms.
Dovhiy Yu.   +6 more
doaj   +1 more source

Ecological implications of fish removal: Insights from gut‐content analysis of roach (Rutilus rutilus) and European perch (Perca fluviatilis) in a eutrophic shallow lake

open access: yesJournal of Fish Biology, Volume 103, Issue 6, Page 1321-1334, December 2023., 2023
Abstract Large reductions in fish biomass are common both as a method of managing lake ecosystems by fish removals (biomanipulation) and as naturally occurring fish kills. To further understand how fish reductions change feeding patterns of fish, we studied the diets of small‐ to medium‐sized roach (Rutilus rutilus) and European perch (Perca ...
Andreas S. Berthelsen   +4 more
wiley   +1 more source

To the fauna of chewing lice (Phthiraptera) of birds in the Lower Don region, Russia. Non-Passeriformes. Part 1 [PDF]

open access: yesКавказский энтомологический бюллетень, 2018
The fauna of chewing lice (Phthiraptera) of non-passerine birds was studied in Rostov Region of Russia for the first time. The material was collected from 2001 to 2017 in the vicinity of Rostov-on-Don city. As a result, 29 species of chewing lice from 85 
O.D. Malysheva   +2 more
doaj   +1 more source

Impacts of predation by Eurasian otters on Atlantic salmon in two Norwegian rivers

open access: yesFreshwater Biology, Volume 68, Issue 7, Page 1176-1193, July 2023., 2023
Abstract The return of the Eurasian otter (Lutra lutra) to western Norway has sparked human–predator conflicts because otters prey on vulnerable Atlantic salmon (Salmo salar) populations. Although predation may not be the ultimate cause of salmon population declines, otters that kill adult salmon in rivers before they spawn impact the salmon spawning ...
Lene Klubben Sortland   +4 more
wiley   +1 more source

An interdisciplinary approach to improving conservation outcomes for parasites. [PDF]

open access: yesConserv Biol
Abstract Parasites represent a significant proportion of Earth's biodiversity and play important roles in the ecology and biology of ecosystems and hosts, making them an important target for conservation. Despite increasing calls to prioritize protection for parasites in the academic literature, they remain undervalued and underrepresented in global ...
Brown TM   +5 more
europepmc   +2 more sources

On the origin of Halipeurus heraldicus on Round Island petrels: cophylogenetic relationships between petrels and their chewing lice [PDF]

open access: yes, 2010
Lice phylogenetic relationships have often been used to elucidate host relationships and vice versa. In this study, we investigate the louse genus Halipeurus which parasitizes bird hosts in the families Procellariidae, Hydrobatidae and Pelecanoididae ...
Brown, R.   +4 more
core   +1 more source

Fish disease prevention via microbial dysbiosis‐associated biomarkers in aquaculture

open access: yesReviews in Aquaculture, Volume 15, Issue 2, Page 579-594, March 2023., 2023
Abstract Infectious diseases are a major burden in aquaculture, and represent a significant yield‐limiting factor in production that is costly to manage as well as a potential vector for zoonoses. Over the past decades, a range of new diseases have emerged, alongside increased levels of antibiotic resistance, thus heightening the need for improved ...
Julia Mougin, Alyssa Joyce
wiley   +1 more source

Data incongruence and the problem of avian louse phylogeny [PDF]

open access: yes, 2004
Recent studies based on different types of data (i.e. morphological and molecular) have supported conflicting phylogenies for the genera of avian feather lice (Ischnocera: Phthiraptera).
Archie J. W.   +52 more
core   +1 more source

Composition and Distribution on a Host of Avian Lice of White Storks in North-Eastern Algeria

open access: yesDiversity, 2022
The diversity and spatial distribution of ectoparasites of a large colony of white stork Ciconia ciconia at Dréan, in north-eastern Algeria, were investigated during two consecutive breeding seasons.
Laïd Touati   +6 more
doaj   +1 more source

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