Results 91 to 100 of about 70,531 (219)

The iNaturalist Species Classification and Detection Dataset [PDF]

open access: yes, 2018
Existing image classification datasets used in computer vision tend to have a uniform distribution of images across object categories. In contrast, the natural world is heavily imbalanced, as some species are more abundant and easier to photograph than ...
Adam, Hartwig   +8 more
core   +2 more sources

Trophic Niche Overlap Between the Invasive Crab Rhithropanopeus harrisii (Gould, 1841) and Native Crab Species in the Southwest Atlantic Coast

open access: yesMarine Ecology, Volume 47, Issue 3, May/June 2026.
ABSTRACT The introduction of exotic species is one of the main drivers of biodiversity loss in aquatic ecosystems. The Harris mud crab Rhithropanopeus harrisii, native to the Atlantic coast of North America, was recorded in the Patos Lagoon estuary (southern Brazil) in the 1980s, likely introduced via ballast water. However, the effects of this invader
Renan C. Machado   +2 more
wiley   +1 more source

Inferring Time‐to‐Speciation From Hybrid Zone Analysis Informs Assessments of Taxonomic Inflation

open access: yesMolecular Ecology, Volume 35, Issue 9, May 2026.
ABSTRACT Measuring gene flow across hybrid zones can provide a direct evaluation of reproductive isolation (RI) between evolutionary divergent lineages. Geographic‐explicit modelling of gene flow across hybrid zones, known as cline analysis, thus offers a gold standard for species delimitation under the biological species criterion.
Sven Gippner   +3 more
wiley   +1 more source

Revizní průzkum vodních měkkýšů Moravské Dyje [PDF]

open access: yesMalacologica Bohemoslovaca
The Moravská Dyje is a smaller river in the Czech Republic and Austria, which is one of two sources of the river Dyje. During surveys in 2022 and 2024, 21 species of aquatic molluscs (13 gastropods and 8 bivalves) were found at 31 sites in the Czech part
Luboš Beran
doaj   +1 more source

Coupling bioturbation activity to metal (Fe and Mn) profiles in situ [PDF]

open access: yes, 2013
This work was supported by a University of Aberdeen 6th century scholarship (awarded to L. T.), CEFAS Lowestoft (DP204), NERC NFSD support (08/02) and a SAMS research bursary (awarded to L.
Parker, E. R., Solan, M., Teal, L. R.
core   +4 more sources

Cargols terrestres (Gastropoda, Stylommatophora) del Parc Natural de la Muntanya de Montserrat (Barcelona, NE península Ibèrica)

open access: yesArxius de Miscel-lània Zoològica, 2007
Es dóna a conèixer l’inventari actualitzat dels cargols terrestres del Parc Natural de Montserrat, amb 73 tàxons. Per complir aquest objectiu ha calgut fer una revisió bibliogràfica de més de 130 publicacions.
V. Bros
doaj   +1 more source

Impacto de depredadores y niveles de recursos sobre rasgos fisiológicos de Fissurella crassa (Archeogastropoda [PDF]

open access: yes, 2015
Indexación: Web of Science; RedalycThe effects of predators on the density of prey and their resources have been widely studied; however, there is little evidence on the effects of the predators in conjunction with the availability of resources on the ...
Aldana, Marcela   +3 more
core  

Information-theoretic signatures of biodiversity in the barcoding gene

open access: yes, 2018
The COI mitochondrial gene is present in all animal phyla and in a few others, and is the leading candidate for species identification through DNA barcoding.
Barbosa, Valmir C.
core   +1 more source

Influència de l'altitud en la riquesa d'especies de mol·luscs: variacions a la vall d'Alinyà, Alt Urgell

open access: yesArxius de Miscel-lània Zoològica, 2007
La riquesa d’espècies de mol·luscos terrestres està correlacionada negativament amb l’altitud, mentre que el rang altitudinal de les espècies ho està positivament.
J. Cadevall   +5 more
doaj   +1 more source

СПІВІСНУВАННЯ ДРЕЙСЕН (MOLLUSCA: BIVALVIA: DREISSENIDAE) ТА ПЕРЛІВНИЦЕВИХ (MOLLUSCA: BIVALVIA: UNIONIDAE) У ВОДНИХ ОБ’ЄКТАХ УКРАЇНИ [PDF]

open access: yes, 2011
У статті досліджено співіснування дрейсен (MOLLUSCA: BIVALVIA: DREISSENIDAE) та перлівницевих (MOLLUSCA: BIVALVIA: UNIONIDAE)у водних об'єктах ...
Пампура, М. М.   +1 more
core  

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