Results 71 to 80 of about 1,184 (185)

Prevalence of intestinal parasites in school children from Ciudad Bolívar, Venezuela: comparison between two periods

Kasmera, 2015
The prevalence of intestinal parasites in 921 schoolchildren from nine schools in Ciudad Bolivar, Bolivar State, Venezuela during the period 2009-2013 was determined and compared with that obtained in the same city in the period 1995-1996 in seven ...
Rodolfo Devera, Ytalia Blanco, Iván Amaya   +2 more
doaj  

Taxonomic, phylogenetic and functional β‐diversity of stream algae is driven by the number of added nutrients and herbivory

Journal of Ecology, Volume 113, Issue 11, Page 3390-3405, November 2025.
Higher numbers of added nutrients (NAN) in treatment (T) relative to control (C) algal communities (1) and grazing (2) elevated taxonomic/phylogenetic nestedness (βNes) and functional gradient (βGra) components of β‐diversity. Herbivory favoured grazer‐resistant inferior competitors (2).
Sophia I. Passy, Chad A. Larson
wiley   +1 more source

¿Blastocystis sp. o B. hominis? ¿Protozoario o chromista? | ¿Blastocystis sp. or B. hominis? ¿Protozoa or chromist? [PDF]

, 2014
Blastocystis spp. es el agente etiológico de la blastocistosis. Es uno de los parásitos intestinales humanos más ampliamente distribuidos y prevalentes alrededor del mundo, incluyendo a Venezuela.
Cazorla-Perfetti, Dalmiro
core  

A review of the ecological affinities of marine organic microfossils from a Holocene record offshore of Adélie Land (East Antarctica) [PDF]

Journal of Micropalaeontology, 2018
Integrated Ocean Drilling Program (IODP) Expedition 318 recovered a  ∼ 170 m long Holocene organic-rich sedimentary sequence at Site U1357. Located within the narrow but deep Adélie Basin close to the Antarctic margin, the site accumulated ...
J. D. Hartman, P. K. Bijl, F. Sangiorgi
doaj   +1 more source

Description of a New Telonemia Genus and Species With Novel Observations Providing Insights Into Its Hidden Diversity

Journal of Eukaryotic Microbiology, Volume 72, Issue 6, November/December 2025.
ABSTRACT Telonemia is a fascinating and understudied group of microbial eukaryotes known to have a vast diversity that is still uncharacterized. In fact, although their phylogenetic position is still actively debated, their diversity and biology are largely unexplored: to date, there are only seven described species in three genera, although there are ...
Helena Mostazo‐Zapata, Alex Gàlvez‐Morante, Cédric Berney, Xènia Maya‐Figuerola, Cristiana Sigona, David López‐Escardó, Elisabet L. Sà, Dolors Vaqué, Daniel J. Richter   +8 more
wiley   +1 more source

Enteroparásitos en estudiantes de la Escuela Nacional Leoncio Quintana, municipio Maracaibo, Venezuela

QhaliKay, 2019
Para determinar la prevalencia de parasitosis intestinales en escolares de la Escuela Nacional Leoncio Quintana del municipio Maracaibo, Venezuela, se analizaron 69 muestras fecales de ambos sexos, con edades comprendidas entre 6 y 12 años de edad.
Ellen Acurero de Yamarte, Rossangelica Barrios, Luis Bellido, Jhonkeyler Rojo, Miguel Arteaga, Angela Bracho Mora   +5 more
doaj   +1 more source

Sparse genetic data limit biodiversity assessments in protected areas globally

Frontiers in Ecology and the Environment, Volume 23, Issue 8, October 2025.
Global conservation targets include protecting genetic diversity within species. Yet few studies have assessed whether protected areas (PAs) include genetically diverse populations across species globally. A first step is understanding the availability of population genetic data that could be used in these assessments.
Ivan Paz‐Vinas, Amy G Vandergast, Chloé Schmidt, Deborah M Leigh, Simon Blanchet, René D Clark, Eric D Crandall, Hanne De Kort, Jeff Falgout, Colin J Garroway, Eleana Karachaliou, Francine Kershaw, David O’Brien, Malin L Pinsky, Gernot Segelbacher, Rachel H Toczydlowski, Margaret E Hunter   +16 more
wiley   +1 more source

Supplementary Table 2 [PDF]

, 2018
Fungal metagenome and succession The metabarcoding libraries yielded 3,636,481 paired reads. After the removal of the low-quality sequences, chimaeras, non-target taxa (plants, Chromista, Protista, Protozoa, and Metazoa), and rare sequence types, we ...
Anastasia Dudko (5618123), Artem Lim (5618126), Alice Pivovarova (5618150), Ventura, Stefano, Dudko, Anastasia, Andrea Berruti (5618138), Pivovarova, Alice, Lumini, Erica, Stefano Ventura (423242), Lim, Artem, Roberto Cazzolla Gatti (3237561), Erica Lumini (169287), Inna Lushchaeva (5618147), Berruti, Andrea, Igor Volkov (66771), Cazzolla Gatti, Roberto, Lushchaeva, Inna, Volkov, Igor, Alena Velichevskaya (5022767), Velichevskaya, Alena   +19 more
core   +1 more source

Prevalencia de parásitos intestinales en escolares de Ciudad Bolívar, Venezuela: comparación entre dos períodos

Kasmera, 2015
; The prevalence of intestinal parasites in 921 schoolchildren from nine schools in Ciudad Bolivar, Bolivar State, Venezuela during the period 2009-2013 was determined and compared with that obtained in the same city in the period 1995-1996 in seven ...
Devera Rodolfo, Blanco Ytalia, Amaya Iván   +2 more
doaj  

Advancing aquatic biodiversity assessments of invertebrates using eDNA metabarcoding: A systematic evaluation of primers for marine and freshwater communities

Methods in Ecology and Evolution, Volume 16, Issue 10, Page 2408-2430, October 2025.
Abstract Invertebrate richness and community composition are key indicators of aquatic ecosystem health. Compared with morphotaxonomy‐based survey methods, DNA metabarcoding is a highly efficient and scalable biomonitoring approach that has become increasingly used in invertebrate surveys.
Xiaoyu Chen, Ziling Yan, Sheng Li, Meng Yao   +3 more
wiley   +1 more source