Results 41 to 50 of about 7,067 (205)

The dual role of detritus as resource and habitat: integrating non‐trophic processes to ecosystem dynamics

open access: yesOikos, EarlyView.
The diversity of ecological interactions, both trophic and non‐trophic, is central to understanding the assembly of communities. However, we have yet to study non‐trophic processes through their action on ecosystem compartments such as detritus involved in both recycling and habitat provisioning.
Frederic Guichard   +2 more
wiley   +1 more source

Comprehensive Evaluation of Bisphenol A Toxicity Reveals Neurobehavioral, Metabolic, and Reproductive Impairments in Girardia tigrina

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Bisphenol A (BPA), a common industrial chemical used in plastics and consumer products, is increasingly detected in aquatic environments, raising serious concerns about its potential ecological impacts. This study evaluated the sublethal and acute toxic effects of BPA on the freshwater planarian Girardia tigrina, a recognized model for ...
Raquel de Jesus Selestrino   +2 more
wiley   +1 more source

Live large flatworm in intestine

open access: yesPan African Medical Journal, 2021
A 40-year male presented to the emergency department with the complaints of fatigue that had progressively worsened over the period of 3 months. He had recently emigrated from Mexico, where he worked on a farm and eaten raw watercress. Clinical examination revels pallor of oral mucosa.
Medhavi Vivek Joshi   +1 more
openaire   +3 more sources

Hammerhead worms everywhere? Modelling the invasion of bipaliin flatworms in a changing climate [PDF]

open access: yes, 2022
International audienceAimAlien species introduced into new ecosystems occasionally predate upon or outcompete native species. Land planarians (Geoplanidae) are a family of carnivorous Platyhelminthes among which several species are found outside their ...
Justine, Jean-Lou   +5 more
core   +1 more source

The Employment of Hydrogen Peroxide in Water Disinfection Poses a Threat to Aquatic Ecosystems Because of Its Toxicity to Nontarget Organisms

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Hydrogen peroxide is widely used in water and wastewater treatment, particularly in advanced oxidation processes that aid in the degradation of compounds and microbial disinfection. Despite concerns about potential environmental contamination, its impact on freshwater ecosystems remains inadequately studied.
Letícia Queiroz Almeida   +7 more
wiley   +1 more source

Neuronal sources of hedgehog modulate neurogenesis in the adult planarian brain

open access: yeseLife, 2016
The asexual freshwater planarian is a constitutive adult, whose central nervous system (CNS) is in a state of constant homeostatic neurogenesis. However, very little is known about the extrinsic signals that act on planarian stem cells to modulate rates ...
Ko W Currie   +2 more
doaj   +1 more source

Oxygen consumption rate of flatworms under the influence of wake- and sleep-promoting neurotransmitters. [PDF]

open access: yesJ Exp Zool A Ecol Integr Physiol
Flatworms are among the best studied animal models for regeneration; however, they also represent an emerging opportunity to investigate other biological processes as well.
Omond SET   +5 more
europepmc   +2 more sources

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

open access: yesActa Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi   +6 more
wiley   +1 more source

Convergent evolution of the sensory pits in and within flatworms

open access: yes, 2023
Background:Unlike most free-living platyhelminths, catenulids, the sister group to all remaining flatworms, do not have eyes. Instead, the most prominent sensory structures in their heads are statocysts or sensory pits.
Brand, Jeremias N.   +13 more
core   +1 more source

The threat posed by invasive alien flatworms to EU agriculture and the potential for phytosanitary measures to prevent importation.

open access: yes, 2021
Technical note prepared by IUCN for the European CommissionThere are 28+ native species of terrestrial flatworm in Europe with more being identified every year due to renewed scientific interest and developments in taxonomy.
Justine, Jean-Lou, Murchie, Archie K.
core   +3 more sources

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