Results 41 to 50 of about 183 (126)

Freshwater tardigrades from Hopen, Svalbard (76°31'N)

Fauna Norvegica
Seventeen species of Tardigrada were found in submerged mosses of 17 freshwater bodies from the SE part of the island of Hopen (Svalbard). Fourteen species are new records for Hopen; Pseudechiniscus islandicus was not previously reported from Svalbard ...
Els A. van Rompu, Willem H. De Smet
doaj   +1 more source

Phenotypically exceptional Echiniscus species (Heterotardigrada: Echiniscidae) from Argentina (Neotropics)

Zoologischer Anzeiger, 2021
Abstract One of the most extensive species radiations in the tardigrade evolution took place in the Echiniscus phylogenetic line, which contains the genus Echiniscus with over 120 species described to date. The internal classification of Echiniscus is historically based on two major sources of variability: chaetotaxy, that is the arrangement and the ...
Gąsiorek, Piotr, Bochnak, Marcin, Vončina, Katarzyna, Michalczyk, Łukasz   +3 more
openaire   +2 more sources

Integrative description of a new Pseudechiniscus species and a new population of Barbaria ganczareki (Michalczyk and Kaczmarek, 2007) (Heterotardigrada: echiniscidae) from Ecuador

The European Zoological Journal
The terrestrial genera Barbaria (13 taxa) and Pseudechiniscus (54 taxa) belong to the family Echiniscidae (Heterotardigrada). In two samples collected in the Cotachi-Caypas Ecological Reserve, specimens of both genera were found.
J. Warguła, P. Kayastha, A. Polishchuk, K. Nawrot, M. Krakowiak, T. Bartylak, M. Gawlak, Ł. Kaczmarek   +7 more
doaj   +1 more source

Sexual dimorphism, population dynamics and some aspects of life history of Echiniscus mauccii (Tardigrada; Heterotardigrada)

Journal of Limnology, 2007
A fifteen month study (December 2002 though February 2004) of a meiofaunal community living in moss and lichen from a Pecan tree on the campus of Jacksonville State University reports 9,791 microinvertebrates.
Frank A. ROMANO III, Colleen R. MITCHELL
doaj   +1 more source

Current knowledge of the Tardigrada of Svalbard with the first records of water bears from Nordaustlandet (High Arctic)

Polar Research, 2013
The first investigations of the tardigrades of Svalbard took place in the early 20th century and 30 papers on the subject have been published to date. In this article, we summarize available information on the distribution of tardigrades in this Arctic ...
Krzysztof Zawierucha, Stephen J. Coulson, Łukasz Michalczyk, Łukasz Kaczmarek   +3 more
doaj   +1 more source

REDISCOVERY OF ECHINISCUS RUFOVIRIDIS DU BOIS-RAYMOND MARCUS 1944 (HETEROTARDIGRADA, ECHINISCIDAE): NEW CONTRIBUTIONS TO THE KNOWLEDGE OF ITS MORPHOLOGY, BIOECOLOGY AND DISTRIBUTION REDESCUBRIMIENTO DE ECHINISCUS RUFOVIRIDIS DU BOIS-RAYMOND MARCUS 1944 (HETEROTARDIGRADA, ECHINISCIDAE): CONTRIBUCIONES AL CONOCIMIENTO DE SU MORFOLOGIA, BIOECOLOGIA Y DISTRIBUCION

Gayana, 2002
Numerous specimens of Echiniscus rufoviridis (Heterotardigrada, Echiniscidae) were recorded and studied from urban localities in Argentina. Since the first description of this species by Du Bois-Raymond Marcus in 1944 on Brazilian specimens, it had not ...
Julio Peluffo, María C. Moly de Peluffo, Alejandra M. Rocha   +2 more
doaj  

Integrative description of Pseudechiniscus (Meridioniscus) goldsteini sp. nov. from Madeira (Portugal)

The European Zoological Journal
Using integrative taxonomy, we describe a new species from Ribeira Brava, Madeira (Portugal), belonging to the genus Pseudechiniscus and subgenus Meridioniscus. The new species, Pseudechiniscus (Meridioniscus) goldsteini sp. nov.
P. Kayastha, M. M. Bartylak, T. Bartylak, M. Gawlak, Ł. Sługocki, Ł. Kaczmarek   +5 more
doaj   +1 more source

Tardigrades of North America: more new records of occurrence for species of green tardigrades (Heterotardigrada: Echiniscoidea: Echiniscidae: Viridiscus)

Natural History Sciences
Green pigmented tardigrades known as Viridiscus (Heterotardigrada: Echiniscoidea: Echiniscidae) are typically found in limnoterrestrial habitats, such as moss and lichens.
Jacob Loeffelholz, Seth J. Raynor, Erin R. Morris, Erin A. Manzitto-Tripp, William R. Miller   +4 more
doaj   +1 more source

Comparative analysis of the tardigrade feeding apparatus: adaptive convergence and evolutionary pattern of the piercing stylet system

Journal of Limnology, 2013
A thorough analysis of the cuticular parts of tardigrade feeding apparatuses was performed in order to provide a more complete understanding of their evolution and their potential homologies with other animal phyla (e.g.
Roberto Guidetti, Roberto Bertolani, Lorena Rebecchi   +2 more
doaj   +1 more source

Untangling theEchiniscusGordian knot: paraphyly of the “arctomysgroup” (Heterotardigrada: Echiniscidae)

Cladistics, 2019
AbstractThe genusEchiniscusC.A.S. Schultze, 1840, one of the earliest established and speciose tardigrade genera, has been hypothesized to be polyphyletic. Moreover, the presence or absence of trunk appendages, the type of cuticular sculpturing and body colour have been argued to hold taxonomic significance at the genus level inEchiniscus‐line taxa ...
Piotr Gąsiorek, Witold Morek, Daniel Stec, Łukasz Michalczyk   +3 more
openaire   +3 more sources