0000000000355107

AUTHOR

Roberto Guidetti

0000-0001-6079-2538

showing 3 related works from this author

The morphological diversity within a species can obscure the correct identification

2022

Critical points of various diagnostic characters and a paucity of information relating to the geographical distribution of several marine species can hinder real species delimitation, particularly if they are supposed to be cosmopolitan. Such constraints characterize many amphipod species and are mainly due to the variation in morphological characters during growth. Specifically, the benthic filter-feeding corophiid Cheiriphotis mediterranea Myers, 1983 displays different shapes for the male gnathopod 2 as it grows. This variation has hitherto never been described but an extensive sampling has provided us with the opportunity of studying it in detail. More than six thousand individuals, bel…

BioindicatorSettore BIO/05 - ZoologiaAnimal Science and ZoologyMediterranean biodiversityMorphotypesTaxonomy Morphotypes Bioindicator Mediterranean biodiversity Levantine basinLevantine basinTaxonomy
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Further insights in the Tardigrada microbiome: phylogenetic position and prevalence of infection of four new Alphaproteobacteria putative endosymbion…

2019

Abstract Data from a previous study showed that microbiomes of six tardigrade species are species-specific and distinct from associated environmental microbes. We here performed a more in-depth analyses of those data, to identify and characterize new potential symbionts. The most abundant bacterial operational taxonomic units (OTUs) found in tardigrades are classified, and their prevalence in other environments is assessed using public databases. A subset of OTUs was selected for molecular phylogenetic analyses based on their affiliation with host-associated bacterial families in tardigrades. Almost 22.6% of the most abundant OTUs found do not match any sequence at 99% identity in the IMNGS…

0106 biological sciences0301 basic medicineEchiniscus trisetosusPhylogenetic treeTardigradaAlphaproteobacteriaRickettsialesBiologybiology.organism_classification010603 evolutionary biology01 natural sciencesAnaplasmataceae Ca. Tenuibacteraceaeoperational taxonomic unitsbakteerit03 medical and health sciencesMacrobiotus macrocalix030104 developmental biologyFISHbiomitEvolutionary biologyHolosporalesRichtersius coroniferAnimal Science and ZoologyMicrobiomeEcology Evolution Behavior and SystematicsZoological Journal of the Linnean Society
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The toughest animals of the Earth versus global warming: Effects of long-term experimental warming on tardigrade community structure of a temperate d…

2021

Abstract Understanding how different taxa respond to global warming is essential for predicting future changes and elaborating strategies to buffer them. Tardigrades are well known for their ability to survive environmental stressors, such as drying and freezing, by undergoing cryptobiosis and rapidly recovering their metabolic function after stressors cease. Determining the extent to which animals that undergo cryptobiosis are affected by environmental warming will help to understand the real magnitude climate change will have on these organisms. Here, we report on the responses of tardigrades within a five‐year‐long, field‐based artificial warming experiment, which consisted of 12 open‐to…

karhukaisetexperimentalTemperate deciduous forestglobal warmingEffects of global warmingAbundance (ecology)CryptobiosisEcology Evolution Behavior and SystematicsQH540-549.5Nature and Landscape ConservationOriginal Researchclimate change; experimental; global warming; Tardigrades; water bearsbiologyEcologyEcologywater bearsGlobal warmingPlant litterilmastonmuutoksetbiology.organism_classificationclimate changemaaperäeläimistöTardigradesEnvironmental scienceSpecies richnessTardigradelämpeneminenympäristönmuutokset
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