Results 51 to 60 of about 113,471 (74)

A new species of Farlowella (Siluriformes: Loricariidae) of the F. nattereri species-group from the rio Xingu basin, Mato Grosso, Brazil, with comments on Farlowella jauruensis , a poorly-known species from the upper rio Paraguai basin

open access: yesNeotropical Ichthyology
A new species of Farlowella is described from eighteen specimens collected in the upper rio Xingu basin, Mato Grosso State, Brazil. The new species is a member of the Farlowella nattereri species-group and can be distinguished from other members of the ...
Gustavo A. Ballen   +2 more
doaj   +1 more source

Easier detection of invertebrate "identification-key characters" with light of different wavelengths

open access: yesFrontiers in Zoology, 2011
The marine α-taxonomist often encounters two problems. Firstly, the "environmental dirt" that is frequently present on the specimens and secondly the difficulty in distinguishing key-features due to the uniform colours which fixed animals often adopt ...
Koken Marcel HM, Grall Jacques
doaj   +1 more source

Make it simple: mating behaviour of Euphydryas aurinia provincialis (Lepidoptera: Nymphalidae)

open access: yesThe European Zoological Journal, 2019
Courtship in butterflies can vary among species, from simple to elaborate displays, which are thought to promote conspecific mating and drive a female, at first unreceptive, to eventually mate.
M. Pinzari, M. Pinzari, V. Sbordoni
doaj   +1 more source

Efficacy of five acaricides against the two-spotted spider mite Tetranychus urticae Koch and their side effects on some natural enemies

open access: yesJournal of Basic and Applied Zoology, 2014
Five acaricides, Challenger, Ortus, Vertimec, Delmite and Bioca were investigated for controlling phytophagous mite, Tetranychus urticae Koch and their side effects on the predatory insects, mites and spiders at the El-Fayoum Governorate of cotton ...
Adel A. Abou El-Ela
doaj   +1 more source

Lycodes adolfi Nielsen & Fosså, 1993 (Teleostei: Zoarcidae) recorded near Jan Mayen and in the eastern part of the Norwegian Sea

open access: yesFauna Norvegica, 2009
Specimens of Lycodes adolfi were collected from an epibenthic sampler at six stations near Jan Mayen and in the eastern part of the Norwegian Sea. The stations were at depths from 708 to 2150 m and all of them had subzero water temperatures.
Ingvar Byrkjedal   +2 more
doaj   +1 more source

Knowledge on biodiversity in focus

open access: yesFauna Norvegica, 2009
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Torkild Bakken
doaj   +1 more source

A new species of Baurusuchus (Crocodyliformes, Mesoeucrocodylia) from the Upper Cretaceous of Brazil, with the first complete postcranial skeleton described for the family Baurusuchidae

open access: yesPapéis Avulsos de Zoologia, 2010
The present work describes a new species of Baurusuchidae from Upper Cretaceous sediments of the Bauru Basin, and provides the first complete postcranial description for the family.
Paulo Miranda Nascimento, Hussam Zaher
doaj   +1 more source

Identification and expression analysis of bovine ANGPTL gene family

open access: yesCurrent Zoology, 2010
Encoded by seven genes, angiopoietin-like (ANGPTL) family members structurally similar to the angiogenic regulating factor angiopoietin are known to possess biological activities in angiogenesis and metabolism.
Zhengbing GUAN,Guolin CAI, Junyong SUN, Jian LU
doaj  

Effects of abiotic variables on the distribution of fish assemblages in streams with different anthropogenic activities in southern Brazil

open access: yesNeotropical Ichthyology
Studies on fish assemblages in streams point out, that understanding the relationship between species and their environment is crucial for conservation. The present study aimed at evaluating the effects of changes in abiotic variables on the composition ...
Vanessa Salete Daga   +3 more
doaj   +1 more source

The use of morphological and histological features as nutritional condition indices of Pagrus pagrus larvae

open access: yesNeotropical Ichthyology
Morphometrical and histological techniques were employed to characterize Pagrus pagrus larvae nutritional condition. Larvae were reared in laboratory under controlled conditions with the main objective of testing whether these methodologies allowed ...
Marina Vera Diaz   +4 more
doaj   +1 more source

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