Results 51 to 60 of about 106,503 (124)

The karyotypes of two bark-lice species (Psocoptera, Psocomorpha, Amphipsocidae): the first description of the neo-XY sex chromosome system in Psocoptera.

open access: yesFolia biologica, 2002
Karyotypes of two bark-lice species Amphipsocus japonicus End. and Dasypsocus japonicus End. (Amphipsocidae, Psocomorpha, Psocoptera) were studied for the first time. D. japonicus displayed 2n = 16 (14 + XX/X0). The XX/X0 sex chromosome system observed in this species is characteristic of the order Psocoptera. A. japonicus showed 2n = 16 (14 + neo-XY).
N V, Golub, S, Nokkala
openaire   +1 more source

Olfaction in the Spruce Bark Beetle, Ips typographus [PDF]

open access: yes, 2011
The bark beetle Ips typographus regularly kills spruce trees in the Palearctic. Spruces are colonized by means of attraction to an aggregation pheromone. Attraction is modulated by anti-attractive volatiles (NHV) from non-host plants.
Andersson, Martin
core   +1 more source

The Molecular Weight Characterisation of Pinus radiata Bark Condensed Tannins [PDF]

open access: yes, 2007
Crude condensed tannins extracted from Pinus radiata bark (sourced from Tokoroa) with various solvents (Hot water (HW), methanol/water/acetic acid (MWA), acetone/water (AW) and hot aqueous 2% sulphite/urea solution (SFU)) were subjected to Sephadex LH-20
Bogun, Ben Rowan
core  

The use of a general linear model to identify epidemiological factors affecting the abundance of chalimus stages of the sea louse (Lepeophtheirus salmonis) on Scottish salmon farms [PDF]

open access: yes, 2003
In this communication chalimus lice numbers in the second, third and fourth quarters of the production cycle are examined in relation to a range of prevailing risk factors using an approach based on that already taken for mobile stages (Revie et al.
Treasurer, J.W.   +3 more
core  

A comprehensive review of <i>Azadirachta indica</i> (Neem): Exploring proximate composition, bioactive compounds, and prospects for antimicrobial activity. [PDF]

open access: yesBiochem Biophys Rep
Priyanka G   +7 more
europepmc   +1 more source

Ethnobotanical knowledge of Tharu people living nearby Koshi River and Koshi Tappu Wildlife Reserve (KTWR), eastern Nepal. [PDF]

open access: yesJ Ethnobiol Ethnomed
Kutal D   +6 more
europepmc   +1 more source

Using dietary exposure to determine sub-lethal effects from imidacloprid in two springtail (Collembola) species. [PDF]

open access: yesEcotoxicology, 2023
Silva ASJ   +5 more
europepmc   +1 more source

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