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14 results for “Survey and overview”
Overview of surveys on migration aspirations, plans, and intentions.
<p>This is a dataset of metadata on surveys. It is the first comprehensive overview of existing survey data on migration aspirations, plans and intentions, with recorded metadata on geographic and temporal coverage, survey population, sample size, and other characteristics.</p>
FIG. 9 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 9. — Sample size and sorting process according to the sampling type and impact on the quantity and availability of specimens for taxonomic study. Process for broad-spectrum traps: A, automatic light trap with blue LED; B, yield of the trap after one week; C, conditioning of the sample in the field laboratory, and storage in WhirlPack bags with alcohol; D-F, sorting specimens by order and family at the SEAG laboratory (Montjoly, French Guiana); G, preparing packages with glassine envelopes and Eppendorf vials for dissemination among coordinators and/or taxonomic experts; H, typical output of this kind of broad-spectrum trap samples: about 50% fraction may finally be studied (arbitrary estimate). Photos: Julien Touroult.
FIG. 10 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 10. — Process for active collecting: A, active collection of cricket (Orthoptera); B, photography of live specimens, important part of the process in some groups; C, preparation and management of the specimens for short term storage in the field laboratory; D, output of the active or selective methods: lower yields than broad-spectrum traps but a larger proportion is effectively studied. Photos: A, C, Xavier Desmier; B, Julien Touroult.
FIG. 12 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 12. —Database and portals for entry, consultation and access to data, illustrated by means of a newly described Mitaraka species, Eupromera pascali Dalens, 2016 (Coleoptera, Cerambycidae): A, CardObs database entry interface (https://cardobs.mnhn.fr). The morphospecies name was initially entered as "Eupromera n. sp." in April 2015 and after publication (Feb. 2016), the morphospecies name was replaced by the species name, and the record was completed with publication reference and the collection deposit number; B, INPN French Natural Heritage consultation portal, displaying this species from the Mitaraka dataset (https://inpn.mnhn.fr/espece/cd_nom/814643/tab/rep/GUF); C, public interface to database of the Coleoptera collection (EC) of the MNHN illustrating the holotype and its labels, with full traceability (http://coldb.mnhn.fr/catalognumber/mnhn/ ec/ec7591); D, International GBIF Data Portal displaying the Coleoptera collection (EC) dataset of the MNHN (https://www.gbif.org/occurrence/1413051340).
FIG. 8 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 8. — Active and passive substrate sampling: A, B, collection of dead branches infested with saproxylic larvae for "rearing" in emergence chambers (EXL); C, sampling soil litter for invertebrates with Winkler sieve (WS); D, spraying trunks with insecticide to collect small bark-dwelling arthropods that fall on the white sheet at the bottom of the trunk; E, searching for Annelida in soil samples collected with a spade; F, fish sampling in a small stream using rotenone. Photos: A, B, Stéphane Brûlé; C, Benoît Fontaine; D, Jürgen Schmidl; E, F, Xavier Desmier.
FIG. 7 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 7. — Active collecting techniques: A, collecting butterflies with a net; B, sweeping vegetation (NS or SW) with a rugged sweep net; C, beating tray (BS), the vegetation is hit with a stick, which causes the arthropods to fall on the white nape mounted on a frame; D, searching for aquatic larvae with a rugged aquatic net; E, looking for butterfly caterpillars (Riodinidae and Lycaenidae) on liana flowers; F, visual search for reptiles, here with a Lachesis muta (Linnaeus, 1766) snake. Photos: A, B, C, E, Stéphane Brûlé; D, Nicolas Moulin; F, Xavier Desmier.
FIG. 3 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 3. — Illustration of the landscape and main habitat types found in the Mitaraka study area: A, general landscape of the study area, with the drop zone visible in the foreground; B, inselberg "Sommet-en-Cloche" with bare rocks and transition forest; C, mosaic of forests and cambrouses; D, forest interior; E, swamp forest (bas-fond) with Euterpe oleracea Mart palm. Photos: Xavier Desmier, except B, Stéphane Brûlé.
FIG. 5 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 5. — Passive interception traps: A, windowpane flight intercept trap (FIT) suspended over a fallen tree crown; B, 6 meter Malaise trap (MT) set up over a fallen tree near the Alama river; C, SLAM traps on an inselberg forest edge; D, a buprestid beetle (Buprestidae) trapped in artificial spider web (ASW). Photos: A, B, D, Julien Touroult; C, Stéphane Brûlé.
FIG. 4 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 4. — Some of the collecting sites and techniques: A, drop zone forest clearing, with a high amount a freshly cut trees, and scattered SLAM traps; B, clearing, equiped with SLAM traps, automatic light trap and artificial spider web (ASW); C, active net collecting of butterflies on the "Sommet-en-Cloche" inselberg. Photos: A, B, Julien Touroult, C, Stéphane Brûlé.
FIG. 2 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 2. — Mitaraka study area map with the four trails indicated (map by Maël Dewynter, map base by IGN and Parc amazonien de Guyane).
FIG. 6 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 6. — Attractive traps: A, pink LED based automatic light trap (PVP) suspended at 15 m height close to a small canopy gap; B, light trap (LT) with light bulb of 125W and with white sheet, covered with moths at the end of a rainy night; C, colored pan traps (blue [BPT], white [WPT], and yellow [YPT]) at soil surface level to collect Diptera; D, fruit baited Coleoptera traps with banana nectar (BT), suspended in forest canopy; E, Nymphalidae butterfly trap (CHX), suspended in the forest canopy; F, tree equiped with ropes and baits composed of honey and tuna at different heights to attract ants; G, pitfall trap baited with dung (PFC) to collect coprophagous Scarabaeidae; H, Big Shot, a type of slingshot used to shoot ropes and suspend traps high up in the trees. Photos: A, B, G, H, Julien Touroult; C, Marc Pollet; F, Maurice Leponce; D, E, Stéphane Brûlé.
FIG. 11 in Overview of Mitaraka survey: research frame, study site and field protocols
FIG. 11. — Process flow for Diptera: A, each Diptera coordinator and taxonomic expert signs an agreement prior to receiving samples; B, sampling specimens with an array of methods (Malaise trap, pan traps, sweep net, SLAM trap); C, transporting of partly processed and unprocessed samples to the Belgian lab; D, sorting Diptera from complete samples and splitting the Diptera fraction into workable fractions (mostly on family level) for Diptera coordinators – taxonomic experts; E, processed Diptera fractions (Dolichopodidae, Empidoidea, Mycetophilidae, Phoridae); F, dissemination of workable fractions to Diptera coordinators – taxonomic specialists (10 in Europe, 5 in Canada, 8 in the USA, 10 in Brazil); G, examination and identification of specimens of workable fractions by the taxonomic expert (or further splitting of fractions by Diptera coordinator); H, commitments as part of the signed agreement (see Fig. 11A), with submission of identification file as first.
Text-fig. 1 Simplified geological map of NW Portugal (adapted from Portuguese Geological Survey 1:500.000 lithological map). in Overview Of The Stratigraphy And Initial Quantitative Biogeographical Results From The Devonian Of The Albergaria-A-Velha Unit (Ossa-Morena Zone, W Portugal)
Text-fig. 1 Simplified geological map of NW Portugal (adapted from Portuguese Geological Survey 1:500.000 lithological map).
The ALIGHIERI Survey: an Italian Overview of Global Impact of tHe COVID-19 pandemIc on General surgERy practIce
ClinicalTrials.gov study NCT04824664. IPD Sharing: YES. Countries: 1. Publications: 2.
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International Brain Laboratory public data
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OpenNeuro
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