Utilisation des données Google Street View pour cartographier la distribution géographique des espèces. Une étude préliminaire de la processionnaire du pin (Thaumetopoea pityocampa)

Article publié suite à l'événement : MEDINSECT 3 ; Hammamet-Tunis (Tunisie) - (2012-05-08 - 2012-05-11).Mapping species distribution is an important and useful task to monitor invasive species spread or native species expansion under climate change. Unfortunately it requires a lot of occurrence data that are not easily available from literature and that are very time-consuming to collect in the field. For that reason, we designed a survey with the aim to explore to which extent large-scale databases such as Google Street View could be used to derive valid occurrence data. We worked with an insect species, the Pine Processionary Moth (PPM) Thaumetopoea pityocampa because the larvae of that moth build silk nests on its host tree that are easily visible. The presence of the species at one location can therefore be inferred from visual records derived from the panoramic views available from Google Street View. We designed a standardized procedure allowing the evaluation of the presence of the PPM on a large sampling grid (covering 46 848 km2) located in France. Field sampling has been conducted in parallel, which allowed a straightforward comparison between field and Google-derived datasets. Data derived from Google Street View were highly similar to field data as we found an accuracy (percentage of field values correctly predicted using Google Street View) of 92.9%. We conclude that Google database might provide useful occurrence data for mapping the distribution of species which presence can be visually evaluated such as the PPM. More data are needed, however, to assess the range of spatial scales at which Google Street View actually provides reliable occurrence data.La cartographie de la distribution géographique des espèces est importante pour suivre l’évolution des aires de distribution d’espèces invasives ou d’espèces natives en expansion géographique. Malheureusement, les données nécessaires sont parfois difficilement accessibles à partir de la littérature et sont coûteuses à collecter sur le terrain. Pour cette raison, nous avons conçu une étude dans le but d'explorer dans quelle mesure il est possible d’utiliser les bases de données telles que Google Street View (GSV) pour obtenir des données d’occurrence valides. Nous avons choisi de travailler avec une espèce d’insecte, la chenille processionnaire du pin (PP) Thaumetopoea pityocampa car les larves de cette espèce se développent dans le feuillage des arbres hôtes et tissent un nid blanc aisément visible. La présence de l'espèce dans un site donné peut donc être facilement renseignée en examinant les vues panoramiques disponibles pour de nombreuses localités dans la base de données de Google Street View. Nous avons conçu une procédure standardisée permettant d'évaluer la présence de la PP à partir des données GSV et nous l’avons mise en oeuvre sur une aire d’étude couvrant 46 848 km2dans la région Centre en France. La distribution de l’espèce a également été décrite à l’aide d’échantillonnages réalisés sur le terrain. Les données issues de l’examen des images Google Street View ont été comparées aux données de terrain et se sont révélées de bons estimateurs de la présence de la processionnaire du pin avec une précision (proportion de valeurs correctement estimées) de 92.9% sur notre zone d’étude pour un maillage de 16 km x 16 km. Ces résultats suggèrent que l’exploitation des bases de données de GSV pourrait permettre de produire des données écologiques intéressantes pour les espèces dont la présence peut être estimée visuellement à partir de photographies. Des études complémentaires sont cependant nécessaires pour mieux cerner la gamme d’échelles spatiales auxquelles GSV fournit des données d’occurrence fiables

Spider Mites Web: : a database dedicated to the knowledge of an acarine pest family, the Tetranychidae

Building databases to collect information regarding pest families is particularly useful for an overall knowledge of their biology. Spider Mites Web is dedicated to the Tetranychidae, a family including about 1,250 species, of which 100 are considered as pests. Spider Mites Web is an online database, free, regularly updated, and continuously improved. Built to provide information on all described spider mites worldwide, the database was originally developed from work initiated by J. Gutierrez (Bolland et al., 1998). It was first devoted to taxonomic knowledge, so that it includes all the taxonomic data relating to the history of the nomenclature. It also includes all the host plants and geographical records. We have recently introduced some improvements by updating the user interface. Particularly, we have added a cartographic display of the distribution. This new tool is useful for understanding at a glance the world distribution of each species. Spider Mites Web presently includes (December 20, 2007): 1,250 valid species recorded, 1,256 references, 11,435 host records on 3,877 different plants and 5,219 records of geographic distribution. The Spider Mites Web provides an interactive user interface built for an easy and instinctive use. Three types of queries are available to retrieve information: i) by species, ii) by author and iii) by a cross search allowing multiple combinations of nomenclatural, host plant and geographical data. The Spider Mites Web also has a download section consisting of valid species, host plants and references. The Spider Mites Web is the result of a community work and will grow with the continued participation of this community

Spider Mites Web: : a database dedicated to the knowledge of an acarine pest family, the Tetranychidae

Building databases to collect information regarding pest families is particularly useful for an overall knowledge of their biology. Spider Mites Web is dedicated to the Tetranychidae, a family including about 1,250 species, of which 100 are considered as pests. Spider Mites Web is an online database, free, regularly updated, and continuously improved. Built to provide information on all described spider mites worldwide, the database was originally developed from work initiated by J. Gutierrez (Bolland et al., 1998). It was first devoted to taxonomic knowledge, so that it includes all the taxonomic data relating to the history of the nomenclature. It also includes all the host plants and geographical records. We have recently introduced some improvements by updating the user interface. Particularly, we have added a cartographic display of the distribution. This new tool is useful for understanding at a glance the world distribution of each species. Spider Mites Web presently includes (December 20, 2007): 1,250 valid species recorded, 1,256 references, 11,435 host records on 3,877 different plants and 5,219 records of geographic distribution. The Spider Mites Web provides an interactive user interface built for an easy and instinctive use. Three types of queries are available to retrieve information: i) by species, ii) by author and iii) by a cross search allowing multiple combinations of nomenclatural, host plant and geographical data. The Spider Mites Web also has a download section consisting of valid species, host plants and references. The Spider Mites Web is the result of a community work and will grow with the continued participation of this community

Spider Mites Web: : a database dedicated to the knowledge of an acarine pest family, the Tetranychidae

Building databases to collect information regarding pest families is particularly useful for an overall knowledge of their biology. Spider Mites Web is dedicated to the Tetranychidae, a family including about 1,250 species, of which 100 are considered as pests. Spider Mites Web is an online database, free, regularly updated, and continuously improved. Built to provide information on all described spider mites worldwide, the database was originally developed from work initiated by J. Gutierrez (Bolland et al., 1998). It was first devoted to taxonomic knowledge, so that it includes all the taxonomic data relating to the history of the nomenclature. It also includes all the host plants and geographical records. We have recently introduced some improvements by updating the user interface. Particularly, we have added a cartographic display of the distribution. This new tool is useful for understanding at a glance the world distribution of each species. Spider Mites Web presently includes (December 20, 2007): 1,250 valid species recorded, 1,256 references, 11,435 host records on 3,877 different plants and 5,219 records of geographic distribution. The Spider Mites Web provides an interactive user interface built for an easy and instinctive use. Three types of queries are available to retrieve information: i) by species, ii) by author and iii) by a cross search allowing multiple combinations of nomenclatural, host plant and geographical data. The Spider Mites Web also has a download section consisting of valid species, host plants and references. The Spider Mites Web is the result of a community work and will grow with the continued participation of this community

A database devoted to the harmful insects found in our cultural heritage

National audienceThis database was created by the CICRP and the INRA. It gathers the most harmful pest insects that affect our cultural heritage. These insects represent a serious threat to the preservation of cultural assets such as museum collections, libraries and archives, transportable and non-transportable objects in historical buildings. It is an easy-to-handle tool for identifying species of interest. It also permits to rapidly undertake the required actions against infestations. This database is of interest to any professional in charge of the conservation of the cultural heritage along with any other professional or scientist interested in these subjects

A database devoted to the insects of the cultural heritage

This database, implemented by both the CICRP and the INRA, gathers the most important pests affecting the cultural heritage. These insects represent a serious threat to the preservation of cultural properties such as museum collections, libraries and archives, movable objects and immovable objects in historical buildings. It is an easy tool for identifying the species of interest. It also permits very prompt undertaking of the required actions against the infestations. This database is of interest to any professional in charge of the conservation of the cultural heritage along with any other professional or scientist interested in these subjects

Spider Mites Web: A comprehensive database for the Tetranychidae

Online databases are becoming a standard tool to study taxonomy, biodiversity, and ecology. We have developed a comprehensive database for the family Tetranychidae (spider mites). The Tetranychidae is one of the most important families of the Acari in terms of economic impact, because it comprises several agricultural pest species of major relevance, such as the cosmopolitan Tetranychus urticae. The aim of the web site is to gather information on all described spider mites in the world. The main goal is to provide a synthetic view of the biodiversity of this mite family. 1,280 literature references are included, from 1758 to present. 1,257 species, more than 11,745 host plants, and 5,380 geographical data are recorded in 17 tables. The database includes taxonomic data relating the history of nomenclature, geographical distribution, and host plants for all species examined. Three types of query are available to retrieve this information: (1) ‘By Species’ allows to search on species names and synonyms; (2) ‘Advanced’ performs a cross search including taxonomical, geographical, and host-plant information; and (3) ‘Bibliography’ allows searching references combining one, two, or three authors, and it displays all nomenclatural, host plant, and geographical data for the selected reference

Coding-Complete Genome Sequence of a Partitivirus Isolated from Pine Processionary Moth Eggs

International audienceTwo coding-complete nucleotide sequences of a partitivirus (family Partitiviridae) were discovered in transcriptomic data sets obtained from eggs of the Lepidoptera Thaumetopoea pityocampa. Each segment encodes a single open reading frame, and these two segments are predicted to encode an RNA-dependent RNA polymerase and a coat protein, respectively

Coding-Complete Genome Sequences of an Iteradensovirus and an Alphapermutotetra-Like Virus Identified from the Pine Processionary Moth ( Thaumetopoea pityocampa ) in Portugal

International audienceThe coding-complete genome sequences of an iteradensovirus (family Parvoviridae) and an alphapermutotetra-like virus (family Permutotetraviridae) were discovered from transcriptomic data sets obtained from Thaumetopoea pityocampa larvae collected in Portugal. Each of the coding-complete genome sequences of these viruses contains three main open reading frames (ORFs)