Results 11 to 20 of about 793 (132)

Ecology explains anhydrobiotic performance across tardigrades, but the shared evolutionary history matters more [PDF]

Journal of Animal Ecology, Volume 93, Issue 3, Page 307-318, March 2024., 2023
Desiccation stress is lethal to most animals. However, some microinvertebrate groups have evolved coping strategies, such as the ability to undergo anhydrobiosis (i.e. survival despite the loss of almost all body water).
Calhim, S., Michalczyk, Ł., Rebecchi, L., Stec, D., Vecchi, M.   +4 more
core   +4 more sources

First insights into female sperm storage duration in tardigrades. [PDF]

Ecol Evol, 2022
Tardigrades are an underexplored study system in reproductive and evolutionary biology. We show, for the first time, that female Macrobiotus polonicus can use stored sperm from a single mating event for a considerable proportion of their post‐mating lifetime.
Vecchi M, Chartrain J, Puro S, Tynkkynen R, Vuori T, Michalczyk Ł, Calhim S.   +6 more
europepmc   +2 more sources

Macrobiotus polypiformis sp. nov., a new tardigrade (Macrobiotidae; hufelandi group) from the Ecuadorian Pacific coast, with remarks on the claw abnormalities in eutardigrades [PDF]

European Journal of Taxonomy, 2017
From a moss sample collected in the Manabí Province in Ecuador, we extracted 96 specimens of a new species of eutardigrade. No eggs were found. In order to obtain eggs, an in vitro culture was prepared.
Janko, Karel, Kaczmarek, Łukasz, Ostrowska, Marta, Roszkowska, Milena, Stec, Daniel   +4 more
core   +5 more sources

Resistance to Extreme Stresses by a Newly Discovered Japanese Tardigrade Species, Macrobiotus kyoukenus (Eutardigrada, Macrobiotidae). [PDF]

Insects, 2022
Tardigrades are small micrometazoans able to resist several environmental stresses in any stage of their life cycle. An integrated analysis of tardigrade specimens collected in Tsukuba (Japan) revealed a peculiar morphology and a new sensory field in the
Cesari M, Giovannini I, Altiero T, Guidetti R, Cornette R, Kikawada T, Rebecchi L.   +6 more
europepmc   +2 more sources

A first look into moss living tardigrades in boreal peatlands. [PDF]

Ecol Evol
We investigate for the first time tardigrade community composition in boreal peatlands. Tardigrades are common in boreal peatlands and their abundance and community composition varies across peatland habitat types and microhabitats within peatlands. Abstract Tardigrades (Tardigrada) are a phylum of micrometazoans found in all biomes on Earth, but their
Mäenpää H, Elo M, Calhim S.
europepmc   +2 more sources

Integrative taxonomy resolves species identities within the Macrobiotus pallarii complex (Eutardigrada: Macrobiotidae). [PDF]

Zoological Lett, 2021
The taxonomy of many groups of meiofauna is challenging due to their low number of diagnostic morphological characters and their small body size. Therefore, with the advent of molecular techniques that provide a new source of traits, many cryptic species
Stec D, Vecchi M, Dudziak M, Bartels PJ, Calhim S, Michalczyk Ł.   +5 more
europepmc   +2 more sources

Sexual dimorphism in the tardigrade Paramacrobiotus metropolitanus transcriptome. [PDF]

Zoological Lett
Background In gonochoristic animals, the sex determination pathway induces different morphological and behavioral features that can be observed between sexes, a condition known as sexual dimorphism.
Sugiura K, Yoshida Y, Hayashi K, Arakawa K, Kunieda T, Matsumoto M.   +5 more
europepmc   +2 more sources

Integrative Redescription of the Minibiotus intermedius (Plate, 1888)—The Type Species of the Genus Minibiotus R.O. Schuster, 1980

Diversity, 2022
In the present study, we used the integrative taxonomy approach to redescribe Minibiotus intermedius based on the newly found topotypic population in Marburg (Germany).
Łukasz Kaczmarek, Pushpalata Kayastha, Milena Roszkowska, Magdalena Gawlak, Monika Mioduchowska   +4 more
doaj   +1 more source

Integrative descriptions of two new Macrobiotus species (Tardigrada, Eutardigrada, Macrobiotidae) from Mississippi (USA) and Crete (Greece) [PDF]

Zoosystematics and Evolution, 2021
In this paper, we describe two new Macrobiotus species from Mississippi (USA) and Crete (Greece) by means of integrative taxonomy. Detailed morphological data from light and scanning electron microscopy, as well as molecular data (sequences of four ...
Matteo Vecchi, Daniel Stec
doaj   +3 more sources

Effects of synthetic acid rain and organic and inorganic acids on survival and CaCO3 piercing stylets in tardigrades

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 339, Issue 6, Page 578-589, July 1, 2023., 2023
Tardigrades species exhibit differential sensitivity to synthetic acid rain and natural occurring acids based on pH, acid nature, exposure duration, and species (freshwater species exhibit greater resistance). Aragonite piercing stylets of feeding apparatus maintain their morphology when tardigrades are exposed to acids.
Edoardo Massa, Lorena Rebecchi, Roberto Guidetti   +2 more
wiley   +1 more source