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scientifique

La féralité : un concept novateur pour les forêts / Annik Schnitzler in Revue forestière française, vol 73 n° 2 - 3 (2021)  

Public [article]  inRevue forestière française > vol 73 n° 2 - 3 (2021) . - pp 271 - 279 Titre : La féralité : un concept novateur pour les forêts Type de document : Article/Communication Auteurs : Annik Schnitzler, Auteur ; Jean-Claude Génot, Auteur Année de publication : 2022 Article en page(s) : pp 271 - 279 Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] forêt [Termes IGN] gestion de la vie sauvage [Vedettes matières IGN] Foresterie Résumé : (auteur) De nombreux milieux agricoles ou prairiaux, laissés en libre évolution, évoluent vers des stades plus ou moins boisés en fonction des climats, des sols et des héritages anthropiques. Ces milieux en voie d’ensauvagement peuvent être assimilés à la nature férale. Il en existe beaucoup en France, liés à diverses crises économiques. Les plus anciennes ont entre 100 et 130 ans ; les plus jeunes entre 10 et 20 ans. Ils peuvent atteindre de grandes étendues dans la moitié sud de la France. Nous présentons quelques exemples de nature férale dans diverses parties de la France, dans la zone méditerranéenne, en moyenne montagne, en Bretagne ou le long des fleuves, afin de convaincre de l’intérêt de ces forêts férales pour la conservation des espèces en danger, des gros insectes aux grands mammifères. La nature férale française offre une formidable occasion, très concrète, de reconnaître la valeur intrinsèque de la nature sauvage. Numéro de notice : A2022-725 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : 10.20870/revforfr.2021.5472 Date de publication en ligne : 30/03/2022 En ligne : https://doi.org/10.20870/revforfr.2021.5472 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102995 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
133-2021021	DEP-OBF	Revue	Bordeaux	Dépôt en unité	Exclu du prêt

Maps, volunteered geographic information (VGI) and the spatio-discursive construction of nature / Juan Astaburuaga in Digital Geography and Society, vol 3 (2022)  

Public [article]  inDigital Geography and Society > vol 3 (2022) . - n° 100029 Titre : Maps, volunteered geographic information (VGI) and the spatio-discursive construction of nature Type de document : Article/Communication Auteurs : Juan Astaburuaga, Auteur ; Michael E. Martin, Auteur ; Agnieszka Leszczynski, Auteur ; JC Gaillard, Auteur Année de publication : 2022 Article en page(s) : n° 100029 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse du discours [Termes IGN] cartographie collaborative [Termes IGN] données localisées des bénévoles [Termes IGN] gestion de la vie sauvage [Termes IGN] milieu naturel [Termes IGN] Patagonie [Termes IGN] représentation mentale [Vedettes matières IGN] Cartologie Résumé : (auteur) This paper interrogates the role that spatial media such as maps and Volunteered Geographic Information (VGI) play in the construction and mobilisation of representations of nature. Drawing on poststructural political ecology, critical cartography, and GIScience, this article engages maps and VGI as discursive mechanisms that solidify and convey meanings and representations of nature tied to broader strategies of commodification. Particularly, we explore how spatial media reproduces and legitimises discursive strategies that rationalise the reconciliation of economic development and conservation through nature-based tourism by producing new ways of nature commodification. Drawing on evidence from Patagonia-Aysén, Chile, this paper examines the intersections between the discourse of nature encoded within institutional tourist maps and advertisements, and within the VGI platform for travellers, TripAdvisor. This illustrative case shows, firstly, how tourist maps and advertisements have contributed to normalising a discursive construction of nature as pristine, grandiose, sublime and wild that has not only secured aesthetics as ontological qualities of nature, but also as embedded values that protect ‘nature’ as a commodity to consume. Secondly, our findings evidence that TripAdvisor emerges out of this context as content that mobilises individual perceptions of and narratives about Patagonian nature that is already mediated by this dominant discourse. This dynamic suggests that VGI constitutes a new form of discursive power that digitally reproduces and mobilises a dominant discourse of nature, (re)producing what we term ‘discursive digital nature’. Numéro de notice : A2022-140 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1016/j.diggeo.2022.100029 Date de publication en ligne : 22/01/2022 En ligne : https://doi.org/10.1016/j.diggeo.2022.100029 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=99772 [article]

A time‐geographic approach to quantifying wildlife–road interactions / Rebecca W. Loraamm in Transactions in GIS, vol 23 n° 1 (February 2019)  

Public [article]  inTransactions in GIS > vol 23 n° 1 (February 2019) . - pp 70 - 86 Titre : A time‐geographic approach to quantifying wildlife–road interactions Type de document : Article/Communication Auteurs : Rebecca W. Loraamm, Auteur ; Joni A. Downs, Auteur ; David Lamb, Auteur Année de publication : 2019 Article en page(s) : pp 70 - 86 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse spatio-temporelle [Termes IGN] comportement [Termes IGN] données GPS [Termes IGN] échantillonnage de données [Termes IGN] faune locale [Termes IGN] gestion de la vie sauvage [Termes IGN] interaction spatiale [Termes IGN] migration animale [Termes IGN] Mustelidae [Termes IGN] prisme spatio-temporel [Termes IGN] route [Termes IGN] Time-geography [Termes IGN] voxel Résumé : (auteur) Recent advances in time geography offer new perspectives for studying animal movements and interactions in an environmental context. In particular, the ability to estimate an animal's spatial location probabilistically at temporal sampling intervals between known fix locations allows researchers to quantify how individuals interact with one another and their environment on finer temporal and spatial scales than previously explored. This article extends methods from time geography, specifically probabilistic space–time prisms, to quantify and summarize animal–road interactions toward understanding related diurnal movement behaviors, including road avoidance. The approach is demonstrated using tracking data for fishers (Martes pennanti) in New York State, where the total probability of interaction with roadways is calculated for individuals over the duration tracked. Additionally, a summarization method visualizing daily interaction probabilities at 60 s intervals is developed to assist in the examination of temporal patterns associated with fishers’ movement behavior with respect to roadways. The results identify spatial and temporal patterns of fisher–roadway interaction by time of day. Overall, the methodologies discussed offer an intuitive means to assess moving object location probabilities in the context of environmental factors. Implications for movement ecology and related conservation planning efforts are also discussed. Numéro de notice : A2019-090 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12497 Date de publication en ligne : 17/12/2018 En ligne : https://doi.org/10.1111/tgis.12497 Format de la ressource électronique : url Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=92237 [article]

Unsupervised classification of airborne laser scanning data to locate potential wildlife habitats for forest management planning / Jari Vauhkonen in Forestry, an international journal of forest research, vol 89 n° 4 (August 2016)  

Public [article]  inForestry, an international journal of forest research > vol 89 n° 4 (August 2016) . - pp 350 - 363 Titre : Unsupervised classification of airborne laser scanning data to locate potential wildlife habitats for forest management planning Type de document : Article/Communication Auteurs : Jari Vauhkonen, Auteur ; Joni Imponen, Auteur Année de publication : 2016 Article en page(s) : pp 350 - 363 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] Aves [Termes IGN] biodiversité végétale [Termes IGN] classification non dirigée [Termes IGN] couvert forestier [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] exploration de données géographiques [Termes IGN] gestion de la vie sauvage [Termes IGN] gestion forestière durable [Termes IGN] habitat d'espèce [Termes IGN] hauteur des arbres [Termes IGN] inventaire forestier étranger (données) [Vedettes matières IGN] Ecologie forestière Résumé : (auteur) To account for ecological objectives in forest management planning, potential habitats need to be mapped, characterized and evaluated for utility in alternative management practices. Airborne laser scanning (ALS) is increasingly used to derive predictive maps of habitat quality. Unlike ecologically driven approaches that require spatially and temporally co-located training data of the specific species, we tested whether indicative information on the habitat potential could be obtained by means of an unsupervised classification of ALS data. Based on a literature review, altogether five ALS features quantifying vegetation height, cover and diversity were expected to capture the essential variation in the habitat requirements of western capercaillie (Tetrao urogallus L.) and hazel grouse (Tetrastes bonasia L.), which are the most important game birds occurring in the studied area. The features were extracted from sparse density, leaf-off ALS data at a resolution of 256 m2 and partitioned using an unsupervised k-means algorithm. By analysing the persistence of the cluster ensemble formed by the partitioning, altogether 158 plots in 16 structural classes were assigned for field measurements to determine which real-world forest phenomena affected the clustering. The clustering was found to stratify the area mainly in terms of size-related attributes such as timber volume and basal area. The understorey, shrub and herb layers had less correspondence with the clustering, indicating that an unsupervised classification is not directly suitable for habitat mapping. The result was improved using empirical threshold values for the ALS features determined according to the plots labelled as the most potential habitats in the field measurements. This semi-supervised classification of the data indicated 4 per cent of the total forest area as suitable for the specific species, which appears a reasonable estimate of the core area of the habitats considered. Overall, the partitioning formed aggregated, stand-like spatial patterns, even though the neighbourhoods of the individual 256 m2 cells were not considered at all. The result could be further refined by spatial optimization to produce indicative maps for forest management planning with ALS as the sole data source. Numéro de notice : A2016--155 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1093/forestry/cpw011 En ligne : https://doi.org/10.1093/forestry/cpw011 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85780 [article]

Wildlife management using aiborne Lidar / Joan Hagar in GIM international, vol 30 n° 7 (July 2016)

Public [article]  inGIM international > vol 30 n° 7 (July 2016) . - pp 31 - 33 Titre : Wildlife management using aiborne Lidar Type de document : Article/Communication Auteurs : Joan Hagar, Auteur ; Dave Vesely, Auteur ; Patricia Haggerty, Auteur Année de publication : 2016 Article en page(s) : pp 31 - 33 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Aves [Termes IGN] comptage [Termes IGN] données lidar [Termes IGN] gestion de la vie sauvage [Termes IGN] habitat forestier [Termes IGN] lasergrammétrie [Termes IGN] sous-étage Résumé : (éditeur) The traditional sampling protocol for quantifying nesting habitat for murrelet require an observer to peer up through the tree crown from the forest floor, a task resulting in data of dubious quality. Two dimensional feature of the canopy surface can be quantifyied using satellite imagery, but the three-dimensional attributes of the inaccessible middle strata of the canopy are the most critical to understanding and mapping the habitat. The development of lidar as a tool for quantifying forest structure offers great promise of new solutions to existing habitat measurement problems and opens up a new realm of possibilities for exploring wildlife-habitat relationships. Numéro de notice : A2016-491 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81509 [article]

Exploring geovisualization symbology for landscape genetics / Eoin Mac Aoidh in Transactions in GIS, vol 17 n° 2 (April 2013)  

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Le retour du débat sur la wilderness / Christian Barthod in Revue forestière française, vol 62 n° 1 (janvier - février 2010)  

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Cartography of human wildlife conflicts in Kenya / Elodie Buard (2007)    

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