scholarly journals Cryptic speciation and blurred species boundaries of the earthworm: A challenge for soil-based toxicological risk assessments

2021 ◽  
Vol 239 ◽  
pp. 108880
Author(s):  
Andreas Katsiamides ◽  
Stephen R. Stürzenbaum
Keyword(s):  
Risk Assessments ◽  
Species Boundaries ◽  
Cryptic Speciation ◽  
Toxicological Risk

Marmosets (Callithrix jacchus) as Useful Species for Toxicological Risk Assessments

1992 ◽  
pp. 347-376 ◽  
Author(s):  
Diether Neubert ◽  
Stephan Klug ◽  
Georg Golor ◽  
Reinhard Neubert ◽  
Annegret Felies
Keyword(s):  
Callithrix Jacchus ◽  
Risk Assessments ◽  
Toxicological Risk

Cryptic speciation and species diversity among Australian and New Zealand hornwort taxa of Megaceros (Dendrocerotaceae)

2013 ◽  
Vol 26 (5) ◽  
pp. 356 ◽  
Author(s):  
D. Christine Cargill ◽  
Nicole G. F. Vella ◽  
Ish Sharma ◽  
Joseph T. Miller
Keyword(s):  
New Species ◽  
New Zealand ◽  
Species Diversity ◽  
Sequence Data ◽  
Species Boundaries ◽  
Cryptic Speciation ◽  
Macquarie Island ◽  
Molecular Studies ◽  
The Common ◽  
A New Species

Recent molecular studies have redefined families and genera within the anthocerotes, but species boundaries are only now being revised. Monophyly of Australian and New Zealand taxa within the genus Megaceros Campb., which share the same spore and similar gametophyte morphology, was assessed. On the basis of sequence data, mainland Australian lineages are not monophyletic but are interspersed with New Zealand lineages. There are three species present in Australia, including the common and widespread M. gracilis (Reichardt) Steph., the widespread tropical M. flagellaris (Mitt.) Steph., recognised by its tesselated spores, and a new species, M. austronesophilus, found only in Tasmania and Macquarie Island. None of the currently recognised New Zealand taxa is conspecific with any of the Australian taxa. However, New Zealand lineages were found to be genetically and morphologically more diverse than is currently recognised.

An unexpected discovery of 1,4-benzoquinone as a lipophilic mediator for toxicity detection in water

The Analyst ◽  
2020 ◽  
Vol 145 (15) ◽  
pp. 5266-5272 ◽  
Author(s):  
Dengbin Yu ◽  
Jiantao Li ◽  
Zhichao Kang ◽  
Ling Liu ◽  
Jingting He ◽  
...  
Keyword(s):  
Single Species ◽  
Risk Assessments ◽  
Ecosystem Assessments ◽  
Toxicological Risk

Since most toxicological risk assessments are based on individual single-species tests, there is uncertainty in extrapolating these results to ecosystem assessments.

scholarly journals Macro- and microevolutionary perspectives on Seynesiella juniperi, a fungus in the Venturiales (Dothideomycetes, Ascomycota)

2021 ◽  
Vol 45 ◽  
pp. e73217
Author(s):  
Isaac Garrido Benavent
Keyword(s):  
Type Species ◽  
Distinct Species ◽  
Species Boundaries ◽  
Phylogenetic Study ◽  
Cryptic Speciation ◽  
Plant Association ◽  
High Genetic Diversity ◽  
Biogeographic History ◽  
The Family ◽  
History Of

The present work represents the first comprehensive phylogenetic study of the dothideomycete genus Seynesiella. The genus belongs into the family Cylindrosympodiaceae within the order Venturiales, based on a phylogeny reconstructed with five loci. The high genetic diversity found within the type species, S. juniperi, points towards cryptic speciation, with up to five distinct species that might be associated to different Juniperus hosts. Combining phylogenetics and multi-locus delimitation analyses, together with more detailed measurements of ascospores, will be fundamental for a better understanding of species boundaries and the biogeographic history of the delimited species, as well as for revealing more specific fungal-plant association patterns.

Toxicological Risk Assessments of Iron Oxide Nanocluster- and Gadolinium-Based T1MRI Contrast Agents in Renal Failure Rats

ACS Nano ◽  
2019 ◽  
Vol 13 (6) ◽  
pp. 6801-6812 ◽  
Author(s):  
Qinjie Weng ◽  
Xi Hu ◽  
Jiahuan Zheng ◽  
Fan Xia ◽  
Nan Wang ◽  
...  
Keyword(s):  
Renal Failure ◽  
Iron Oxide ◽  
Contrast Agents ◽  
Risk Assessments ◽  
Toxicological Risk

When rare species become endangered: cryptic speciation in myrmecophilous hoverflies

2002 ◽  
Vol 76 (2) ◽  
pp. 315-315
Author(s):  
KARSTEN SCHONROGGE ◽  
BOYD BARR ◽  
JUDITH C. WARDLAW ◽  
EMMA NAPPER ◽  
MICHAEL G. GARDNER ◽  
...  
Keyword(s):  
Rare Species ◽  
Cryptic Speciation
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