Search results for "AIRO"
showing 10 items of 84 documents
Systematic revision of the Late Miocene sabre-toothed felid Paramachaerodus in Spain
2010
Abstract: A systematic revision of the sabre-toothed cat genus Paramachaerodus Pilgrim, 1913 is presented. Two species are recognized within Paramachaerodus, Pa. orientalis, and Pa. maximiliani, and the genus Promegantereon Kretzoi, 1938 is retrieved to include Promegantereon ogygia. Material from the Turolian Spanish localities of Crevillente-2 (MN 11, Alicante) and Las Casiones (MN 13, Teruel), which was previously assigned to Paramachaerodus, is now included in the tribe Metailurini. The exceptional discoveries at the Spanish Vallesian (MN 10, Madrid) fossil site of Batallones-1 have made it possible to characterize the dentition and cranial anatomy of a previously very poorly known mac…
Lures for red palm weevil trapping systems: aggregation pheromone and synthetic kairomone
2016
Background The optimisation of the lure is essential for the implementation of trapping systems to control insect pests. In this work, the response of the red palm weevil (RPW), Rhynchophorus ferrugineus Olivier, to increasing emission rates of its aggregation pheromone (ferrugineol) and the efficacy of a convenient synthetic kairomone based on fermentation odours (ethyl acetate and ethanol) have been evaluated in different years and locations along the Mediterranean basin. Results In general, although capture data and emission had noticeable variability among locations, significantly fewer RPW were captured in pyramidal Picusan® traps with the lowest ferrugineol emission rates tested (0.6-…
Only Females Oviposit: Chemical Discrimination of Adult Stink Bug Sex by the Egg Parasitoid Trissolcus japonicus
2021
Egg parasitoids foraging for suitable hosts scattered in the environment rely mainly on chemical cues. Elucidating the chemical ecology of natural enemies is important in the development of effective and successful strategies for conservation biological control. In this context, the host cuticular hydrocarbons, which are exploited by several species of egg parasitoids as contact kairomones, could be used to retain them by providing information about the presence and the sex of adults of the target species: sex is important because only females of the host species lay the eggs that can be subsequently utilized for parasitoid reproduction. However, the chemical basis of host sex discriminatio…
Genetic variation in the behavioural mechanisms involved in the response of the egg parasitoid Trissolcus brochymenae to contact chemical cues left b…
2021
International audience; 1. The ability of parasitoid females to perceive chemical traces left by theirhosts is of utmost importance in the host location process. The behaviours involved insuch ability have thus most likely been promoted by natural selection in the course ofthe evolutionary time. For this to happen, however, there must be signicant geneticvariation in natural populations on which natural selection could act.2. Using the isofemale line method and motion analysis, we detected signicantintra-population genetic variation for several walking behaviour traits of the eggparasitoid Trissolcus brochymenae (Hymenoptera: Scelionidae) females responding tochemical traces left by its h…
Latvijas Universitātes Raksti. 755. sēj.
2010
In vitro propagation of Syringa vulgaris L. cultivars
2007
Botāniskā dārza sekciju Augu daudzveidības pētījumi ex situ, Augu selekcija un introdukcija tēžu krājums
2021
Latvijas Universitātes 79. starptautiskās zinātniskās konferences Botāniskā dārza sekcijas Augu daudzveidības pētījumi ex situ un Augu selekcija un introdukcija notika 2021. gada 4. februārī. Krājumā ir 12 ziņojumu kopsavilkumi.
THE ROLES OF PLANT VOLATILES AND THEIR POTENTIAL USE AS FLY ATTRACTANTS
2014
The essential oils composition of the skin, pulp and seeds from fruits of two Sicilian cultivars of Opuntia ficus-indica (cv. Sanguigna and cv. Surfarina has been obtainedby hydrodistillation and the possible semiochemical roles have been investigated comparing the data with those reported in the literature. Several compounds identified in this study have been reported to influence the behaviour of Ceratitis capitata, a phytophagous which causes severe damages to severalcrops including O. ficus-indica and the kairomonal activity of the odour of the fruits seems provided by a blend of compounds found in the various matrices analysed. In sapromyiophilous plants, up to date, long range attract…
The role of contact chemoreception in the host location process of an egg parasitoid
2016
Taste allows insects to detect palatable or toxic foods, identify a mate, and select appropriate oviposition sites. The gustatory system strongly contributes to the survival and reproductive success of many species, yet it is rarely studied in insect parasitoids. In order to locate and assess a host in which they will lay their eggs, female wasps actively search for chemical cues using their sensory organs present mainly on the antennae. In this paper, we studied the role of antennal taste sensilla chaetica in the perception of contact semiochemicals in Trissolcus brochymenae (Hymenoptera: Platygastridae), an egg parasitoid of the brassicaceae pest Murgantia histrionica (Heteroptera: Pentat…
Vairogdziedzera mezglu malignitātes riska standartizēto novērtēšanas sistēmu salīdzinājums
2020
Vairogdziedzera mezglu malignitātes riska standartizētas novērtēšanas sistēmas (TIRADS) vairogdziedzera ultrasonogrāfijas laikā ir ļoti svarīgas pacientiem ar vairogdziedzera mezgliem, jo tās var palīdzēt izvērtēt tievās adatas aspirācijas biopsijas (FNA) nepieciešamību. Pasaulē ir izveidotas vairākas TIRADS novērtēšanas sistēmas, Latvijā tiek pielietota Kwak et al. 2011. gadā izveidota TIRADS sistēma, tomēr neviena no TIRADS sistēmām nav atzīta par etalonu. Pētījuma mērķis ir izpētīt, kura no trim TIRADS sistēmām ir jutīgāka un precīzāka – Latvijā pielietojamā, Eiropas vai Korejas TIRADS sistēma. Materiāli un metodes: Prospektīvs pētījums, kurā tika analizēti 176 pacientu vairogdziedzeru u…