Results 81 to 90 of about 3,108 (177)

Integrative taxonomy unveils a new lineage within Acanthogonatus centralis Goloboff, 1995 (Araneae, Mygalomorphae, Pycnothelidae): description of Acanthogonatus monicae sp. nov. from central Argentina [PDF]

open access: yesEvolutionary Systematics
A new species of Pycnothelidae Chamberlin, 1917 from the Pampean mountain ranges, Córdoba, Argentina is described and illustrated: Acanthogonatus monicae sp. nov. Here, we combine morphological analyses, molecular phylogeny based on the COI gene, species
Fiorella Signorotto, Nelson Ferretti
doaj   +3 more sources

Mind the gap! Integrating taxonomic approaches to assess ant diversity at the southern extreme of the Atlantic Forest [PDF]

open access: yes, 2017
Understanding patterns of species diversity rely on accurate taxonomy which can only be achieved by long-term natural history research and the use of complementary information to establish species boundaries among cryptic taxa.
Aguilar-Velasco   +71 more
core   +1 more source

Spatial distribution and drivers of aboveground forest biomass in Mexico using GEDI and national forest inventory data

open access: yesRemote Sensing in Ecology and Conservation, Volume 11, Issue 6, Page 755-772, December 2025.
GEDI LiDAR‐derived biomass models were calibrated using local field data across various forest types in Mexico, resulting in a significant improvement in AGBD estimation accuracy compared to the standard GEDI products. The models reduced biomass estimation errors by over 30% and showed the highest accuracy in areas with moderate slopes and low forest ...
José Luis Hernández‐Stefanoni   +8 more
wiley   +1 more source

Evaluation of multilocus marker efficacy for delineating mangrove species of West Coast India.

open access: yesPLoS ONE, 2017
The plant DNA barcoding is a complex and requires more than one marker(s) as compared to animal barcoding. Mangroves are diverse estuarine ecosystem prevalent in the tropical and subtropical zone, but anthropogenic activity turned them into the ...
Ankush Ashok Saddhe   +2 more
doaj   +1 more source

A new genus of jumping spiders (Araneae: Salticidae) inhabiting the South Island New Zealand rocky alpine zone

open access: yesNew Zealand Journal of Zoology, Volume 52, Issue 5, Page 716-795, December 2025.
ABSTRACT The spider family Salticidae (jumping spiders) is among the most heavily researched groups of invertebrates globally. Nevertheless, in Aotearoa New Zealand most species have never been studied. While it is estimated that approximately 200 endemic salticid species are found across the country, only around 50 have been described and fewer than ...
Robin G. Long   +2 more
wiley   +1 more source

Characterization of (asymptotically) Kerr–de Sitter-like spacetimes at null infinity* [PDF]

open access: yes, 2016
We investigate solutions(M, g) to Einstein's vacuum field equations with positive cosmological constant. which admit a smooth past null infinity J(-) a la Penrose and a Killing vector field whose associated Mars-Simon tensor (MST) vanishes.
Mars, Marc   +3 more
core   +4 more sources

Surprisingly frequent chromosomal instability in cultivated peanut

open access: yesThe Plant Journal, Volume 124, Issue 6, December 2025.
SUMMARY This study, the third in a three‐part series, investigates whether chromosomal instability persists in cultivated peanut. The allotetraploid peanut (Arachis hypogaea; genome type AABB) originated from the hybridization and polyploidization of A. duranensis (AA) and A. ipaënsis (BB).
Samuele Lamon   +3 more
wiley   +1 more source

Effects of habitat transition on the evolutionary patterns of the microgastropod genus Pseudamnicola (Mollusca, Hydrobiidae) [PDF]

open access: yes, 2014
Submitted: 8 October 2014, Accepted: 8 January 2015Molecular phylogenies of extant species are considered effective tools to infer mechanisms of speciation. Here, we benefit from this utility to investigate the evolutionary history of an organismal group
Delicado, Diana   +2 more
core   +1 more source

DNA Barcoding Southwestern Atlantic Skates: A 20-Year Effort in Building a Species Identification Library

open access: yesDiversity
The skate fauna in the Southwest Atlantic Ocean (SWA; 34–55° S) is represented by ~32 species, many of which share external features that have led to misidentifications and deficient fishery statistics.
Ezequiel Mabragaña   +9 more
doaj   +1 more source

Two-gap superconductivity in Mo$_{8}$Ga$_{41}$ and its evolution upon the V substitution

open access: yes, 2017
Zero-field and transverse-field muon spin rotation/relaxation ($\mu$SR) experiments were undertaken in order to elucidate microscopic properties of a strongly-coupled superconductor Mo$_{8}$Ga$_{41}$ with $T_{\text{c}}=9.8$ K.
Guguchia, Zurab   +4 more
core   +1 more source

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