Results 81 to 90 of about 6,187 (185)

Factors that affect parasitism of black‐tailed prairie dogs by fleas

open access: yesEcosphere, 2016
Fleas (Insecta: Siphonaptera) are hematophagous ectoparasites that feed on vertebrate hosts. Fleas can reduce the fitness of hosts by interfering with immune responses, disrupting adaptive behaviors, and transmitting pathogens.
David A. Eads, John L. Hoogland
doaj   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, Volume 600, Issue 5, Page 591-611, March 2026.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

The Historical and Overlooked Collapse of Medicinal Leeches in Spain

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT Leeches in genus Hirudo have been used in medicine since ancient times, but increased exploitation during the 19th century led to the depletion of several populations in Europe. A compilation of Hirudo records in Spain (H. troctina Johnson, 1816 and H. verbana Carena, 1820) show that the genus was more commonly mentioned and widely distributed
Francisco Blanco‐Garrido   +2 more
wiley   +1 more source

Safeguarding a Flagship Species: Integrated Surveillance of Cross‐Species Pathogen Transmission in Giant Panda Ecosystems

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
Emerging infectious diseases increasingly threaten giant pandas and cohabiting species. This review analyzes pathogen transmission risks from domestic animals, wildlife, and vectors and proposes an integrated genomic surveillance framework for early warning and biodiversity conservation.
Xiaoli Sun   +10 more
wiley   +1 more source

Oxidative costs of migration: infections as an added burden

open access: yesJournal of Avian Biology, Volume 2026, Issue 2, March 2026.
There is increasing evidence that over‐production of reactive species (RS) constitutes a significant physiological cost for migrating birds. The current view entails that RS during migration originate primarily from increased metabolic activity associated with prolonged flights and refueling.
Michael Tobler   +5 more
wiley   +1 more source

Inter‐ and intra‐individual variation in the feather coloration of American crows

open access: yesJournal of Avian Biology, Volume 2026, Issue 2, March 2026.
Avian feathers are remarkably diverse in both form and function. Coloration is among the most studied feature of feathers, but we know relatively little about melanin‐based black coloration. Despite many crows (Corvus sp.) and other corvids having black feathers that appear uniform to human perception, their feather coloration could play an important ...
Jessica L. Yorzinski, Anne B. Clark
wiley   +1 more source

A find of Argulus coregoni (Crustacea: Branchiura) on brook trout in the Western Dvina basin

open access: yesТрансформация экосистем
The crustaceans Argulus coregoni Thorell, 1864 were found on the body surface of brook trout Salmo trutta m. fario L., 1758 in the Velesa River (tributary of the Western Dvina River, Tver Oblast, Russia). This is the first finding of A.
I. S. Turbanov, A. E. Zhokhov
doaj   +1 more source

On the Heterochrony and Evolution of Oral Structures in Phyllopharyngean Ciliates (Protista: Ciliophora)

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 2, Page 91-106, March 2026.
Ontogenetic sequences in phyllopharyngean ciliates. ABSTRACT Heterochronic shifts in developmental sequences of unicellular organisms are rarely considered as mechanisms behind their morphological evolution. Among eukaryotic microbes, ciliates represent a key model group, exhibiting diverse morphologies and developmental trajectories.
Klára Bukovinská, Peter Vďačný
wiley   +1 more source

An RNA interference biopesticide reduces reproduction of the honey bee parasite Varroa destructor by down‐regulating embryo development pathways

open access: yesPest Management Science, Volume 82, Issue 3, Page 2694-2707, March 2026.
Varroa destructor mites exposed to dsRNA specific in sequence to a V. destructor calmodulin gene significantly effected gene expression of adult female mites sampled 5 days after entering a honey bee brood cell to reproduce. Significantly down‐regulated genes included Calmodulin and were associated with calcium ion binding and embryo developmental ...
Zoe E Smeele   +10 more
wiley   +1 more source

The Role of Companion Animals as ‘Sentinels’ From the One Health Perspective

open access: yesVeterinary Medicine and Science, Volume 12, Issue 2, March 2026.
One Health emphasizes the interconnection of human, animal and environmental health. As emotional extensions of humans, companion dogs and cats can serve as sentinels, detecting hazards that can help protect human health from the One Health perspective. When symptoms appear in pets, owners should notice the changes that may pose risks to both human and
Shenchen Kang, Yu Chen, Mengmeng Liu
wiley   +1 more source

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