Results 51 to 60 of about 1,866 (206)

Bayesian phylogenetic tree of NR1 LBD. [PDF]

open access: yes, 2021
Methods for construction of phylogenetic trees see S1 Fig legend. ML model tested as LG+G+I+F (Equilibrium frequencies: Empirical, Proportion of invariable sites: Estimated (0.004), Number of substitution rate categories: 4, Gamma shape parameter ...
Philip T. LoVerde (7548587)   +1 more
core   +1 more source

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

Bayesian phylogenetic tree of NR1 DBD with LBD. [PDF]

open access: yes, 2021
Methods for construction of phylogenetic trees see S1 Fig legend. ML model tested as LG+G+I+F (Equilibrium frequencies: Empirical, Proportion of invariable sites: Estimated (0.029), Number of substitution rate categories: 4, Gamma shape parameter ...
Philip T. LoVerde (7548587)   +1 more
core   +1 more source

Mixed infections and hybridisation in monogenean parasites. [PDF]

open access: yesPLoS ONE, 2012
Theory predicts that sexual reproduction promotes disease invasion by increasing the evolutionary potential of the parasite, whereas asexual reproduction tends to enhance establishment success and population growth rate.
Bettina Schelkle   +4 more
doaj   +1 more source

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

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

Planarian (Platyhelminthes, Tricladida) Diversity and Molecular Markers: A New View of an Old Group

open access: yesDiversity, 2014
Planarians are a group of free-living platyhelminths (triclads) best-known largely due to long-standing regeneration and pattern formation research. However, the group’s diversity and evolutionary history has been mostly overlooked.
Marta Álvarez-Presas, Marta Riutort
doaj   +1 more source

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

Characterization of schistosome tegumental alkaline phosphatase (SmAP).

open access: yesPLoS Neglected Tropical Diseases, 2011
Schistosomes are parasitic platyhelminths that currently infect over 200 million people globally. The parasites can live for years in a putatively hostile environment - the blood of vertebrates. We have hypothesized that the unusual schistosome tegument (
Rita Bhardwaj, Patrick J Skelly
doaj   +1 more source

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