Results 41 to 50 of about 5,499 (220)

Geographic Variation in the Diet of Red Knot (Calidris canutus) Chicks Reflects Local Prey Communities

open access: yesJournal of Biogeography, Volume 53, Issue 3, March 2026.
ABSTRACT Aim To describe and compare the diets of an Arctic‐breeding shorebird, the Red Knot (Calidris canutus), across three geographically distinct breeding sites. We aimed to document the dietary patterns and identify key prey groups that characterise each population's foraging ecology.
Reinier Blok   +12 more
wiley   +1 more source

A checklist of Norwegian Tardigrada

open access: yesFauna Norvegica, 2017
Animals of the phylum Tardigrada are microscopical metazoans that seldom exceed 1 mm in length. They are recorded from terrestrial, limnic and marine habitats and they have a distribution from Arctic to Antarctica. Tardigrades are also named ‘water bears’
Terje Meier
doaj   +1 more source

Five animal phyla in glacier ice reveal unprecedented biodiversity in New Zealand's Southern Alps

open access: yesScientific Reports, 2021
Glacier ice is an extreme environment in which most animals cannot survive. Here we report the colonization of high elevation, climate-threatened glaciers along New Zealand’s southwestern coast by species of Arthropoda, Nematoda, Platyhelminthes ...
Daniel H. Shain   +5 more
doaj   +1 more source

Information-theoretic signatures of biodiversity in the barcoding gene

open access: yes, 2018
The COI mitochondrial gene is present in all animal phyla and in a few others, and is the leading candidate for species identification through DNA barcoding.
Barbosa, Valmir C.
core   +1 more source

First record of Mylodon Darwini Owen (xenarthra, tardigrada, mylodontidae) from Arroyo Feliciano formation (late pleistocene), Entre Rios, Argentina [PDF]

open access: yes, 2015
In this contribution a new record of M. darwini Owen, based on an incomplete skull (MRHU-1) recovered from the Arroyo Feliciano Formation (late Pleistocene) on the Gualeguay River cliffs, nearly the city of Urdinarrain, is presented.
Brandoni, Diego   +2 more
core   +2 more sources

Environmental Gradients and Ecological Processes Are Main Drivers of Eukaryotic Diversity in the Eastern Red Sea

open access: yesEnvironmental DNA, Volume 8, Issue 1, January–February 2026.
Across 266 water column samples, COI eDNA metabarcoding detected 4298 eukaryotic MOTUs spanning 40 phyla in the Eastern Red Sea. Community composition varied strongly across depth and regions, revealing hidden biodiversity patterns and providing a baseline for conservation‐oriented monitoring in a future‐ocean analogue.
Carlos Angulo‐Preckler   +14 more
wiley   +1 more source

Characterising Soil Eukaryotic Diversity From NEON Metagenomics Datasets

open access: yesMolecular Ecology Resources, Volume 26, Issue 1, January 2026.
ABSTRACT Belowground eukaryotic diversity serves a vital role in soil ecosystem functioning, yet the composition, structure, and macroecology of these communities are significantly under‐characterized. The National Ecological Observatory Network (NEON) provides publicly available datasets from long‐term surveillance of numerous taxa and ecosystem ...
Leena Vilonen   +5 more
wiley   +1 more source

Establishing a culture of limno-terrestrial tardigrada in laboratory and development of alternative [PDF]

open access: yesEvidência, 2010
Tardigrades (Phylum Tardigrada) are invertebrate animals also known as water bears, that occurs almost in everylocations on Earth, from the Arctic to Antarctic, from Himalayan top to the bottom of the ocean. One of the reasonsthat the animals can live in
Silvana Perissato Meneghin   +1 more
doaj  

Avaliação dos métodos de amostragem para fauna perifítica em macrófitas na Reserva da Biosfera, Serra do Espinhaço, Estado de Minas Gerais, Brasil - DOI: 10.4025/actascibiolsci.v30i3.377

open access: yesActa Scientiarum: Biological Sciences, 2008
Os métodos “Jarra”, “Remocao Manual” e “Draga de Eckman modificada” foram avaliados para amostrar a fauna perifitica associada a macrofitas aquaticas. Foram coletadas 63 amostras em cinco ambientes lenticos e tres loticos na reserva da biosfera da Serra ...
Helena Lucia Menezes Ferreira   +2 more
doaj   +1 more source

Genome size variation in Tardigrada [PDF]

open access: yesZoological Journal of the Linnean Society, 1996
Abstract The genome size of tardigrades has been documented to date in seven species of eutardigrades, and it is among the lowest in invertebrates. In this paper the evaluation of genome size is extended to eight other species of eutardigrades and to one species of heterotardigrades, in order to obtain a more comprehensive picture of minimum DNA ...
S. GARAGNA, REBECCHI, Lorena, A. GUIDI
openaire   +2 more sources

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