Association pour la sauvegarde de la biodiversité TENDUA a été créée en 2008, après un voyage en Inde où, en dépit de nombreux parcs nationaux, la faune sauvage et ses habitats sont menacés. Le constat est malheureusement planétaire : partout dans le monde, la biodiversité est en danger, sur terre et dans les mers. La 6e extinction majeure de biodiversité est en cours : en 150 ans l’homme a réussi à détruire son environnement comme il ne l’avait jamais fait auparavant. En août 2013, il a été estimé que l’humanité, par sa consommation effrénée, a dépassé la capacité de régénération de la Terre. Les industriels font la course aux brevets sur des animaux et plantes non encore répertoriées qui vivent dans le « no man’s land » océanique ou les rares forêts primaires encore intactes des pays plus pauvres afin d’en tirer un profit sonnant et trébuchant sous le fallacieux prétexte de soigner les maux des hommes des pays riches. Cela étant, nous n’avons plus le temps d’être pessimistes. Une nouvelle relation entre l’homme et la nature
Species Distribution Modelling - spatial-analyst.net pecies Distribution Model (SDM) can be defined as a statistical/analytical algorithm that predicts either actual or potential distribution of a species, given field observations and auxiliary maps, as well as expert knowledge. A special group of Species Distribution Models (SDMs) focuses on the so-called occurrence-only records --- pure records of locations where a species occurred (Engler at al. 2004; Tsoar et al. 2007). This article describes a computational framework to map species' distributions using occurrence-only data and environmental predictors. For this purpose, we will use the dataset "bei", distributed together with the spatstat package, and used in school books on point pattern analysis by Baddeley (2008) and many other authors. To run this script, you will need to obtain some of the following packages. Hengl, T., Sierdsema, H., Radovic, A., Dilo, A., 2009? Preparation of maps Kernel density estimation This shows that the optimal bandwidth size is about 4 m.
The Environmentalist The 5th Bio-logging Science Symposium - Strasbourg 22-26 Sep 2014 - SciencesConf.org Important dates - 30 Sep 2013 : Workshop submission Closed- 31 Mar 2014 : Abstract submission Closed - 20 Apr 2014: Early registration Soon! 21 Apr 2014 - : Late registration 22-27 Sep 2014 : Symposium Abstract submission Log in with your account and go to My Space > Submission. Presentations Instructions for oral presentations will follow shortly.The size of the poster board is 0.94 (width) x 2.39 (height) m. Registration fees Early (Nov 2013 - Mar 2014): Standard 320 euros / Student 190 euros Late (Apr 2014 - Jul 2014): Standard 360 euros / Student 230 euros Fees include documentation, lunches, coffee breaks, icebreaker, social event and banquet. Accompanying person: 200 euros (Fees include lunches, coffee breaks, icebreaker, social event and banquet) Please follow this link for payment. This will take you to a CNRS-secure payment system called Azur Colloques, where you will need to pre-register once more. WARNING: Exhibitors, please don't use this link to pay. Venue Organizing Committee
UNEP-WCMC International Statistical Ecology Conference 2014 - Montpellier 1-4 Jul 2014 - SciencesConf.org IGF Science Daily: News & Articles in Science, Health, Environment & Technology IBAMA : Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renov veis
High Resolution Figures in R | Daniel J. Hocking As I was recently preparing a manuscript for PLOS ONE, I realized the default resolution of R and RStudio images are insufficient for publication. PLOS ONE requires 300 ppi images in TIFF or EPS (encapsulated postscript) format. In R plots are exported at 72 ppi by default. PLOS ONE has extensive instructions for scaling, compressing, and converting image files to meet their standards. Even if scaling up from a low resolution PDF would work, it would be better to have a direct solution in R. [UPDATE: In the original post, I wrote about my trial and error when first trying this out. If you need to use a font not included in R, such as the Arial family of fonts for a publisher like PLOS, the extrafont package is very useful but takes a long time to run (but should only have to run once – except maybe when you update R you’ll have to do it again). [ORIGINAL POST Follows] It took some time to figure out but here are some trials and the ultimate solution I came up with: Like this:
GBIF : Global Biodiversity Information Facility Try out the new GBIF portal! Why not try out the new GBIF portal at www.gbif.org, which has many more features and includes lots of information about the GBIF community, including great examples of data uses in research and interesting applications? The old GBIF data portal which you are viewing now will continue to be supported until we are satisfied it can be taken down without causing major inconvenience. Welcome to the (former) GBIF Data Portal Access 416,242,316 data records (363,215,360 with coordinates) shared via the GBIF network. Explore Species Find data for a species or other group of organisms. Species Information on species and other groups of plants, animals, fungi and micro-organisms, including species occurrence records, as well as classifications and scientific and common names. Example species: Puma concolor (Linnaeus, 1771) Explore Countries Find data on the species recorded in a particular country, territory or island. Countries See data for: France
distance {argosfilter Great circle distance between geographical coordinates Description Function distance calculates the distance, in km, between two geographical locations following the great circle route. Function distanceTrack calculates the distance, in km, between a sequence of locations. Usage distance(lat1, lat2, lon1, lon2) distanceTrack(lat,lon) Arguments lat1 latitude of the first location, in decimal degrees lat2 latitude of the second location, in decimal degrees lon1 longitude of the first location, in decimal degrees lon2 longitude of the second location, in decimal degrees lat vector of latitudes, in decimal degrees lon vector of longitudes, in decimal degrees Details Distances are calculated using spherical trigonometry. Values distance returns the distance between the two locations. distanceTrack returns a vector of distances between the sequence of locations. References Zwillinger D. (2003) Standard Mathematical Tables and Formulae, 31st edition. Examples
ECNC : expertise Centre for biodiversity and sustainable development Graphical Parameters You can customize many features of your graphs (fonts, colors, axes, titles) through graphic options. One way is to specify these options in through the par( ) function. If you set parameter values here, the changes will be in effect for the rest of the session or until you change them again. The format is par(optionname=value, optionname=value, ...) # Set a graphical parameter using par() par() # view current settings opar <- par() # make a copy of current settings par(col.lab="red") # red x and y labels hist(mtcars$mpg) # create a plot with these new settings par(opar) # restore original settings A second way to specify graphical parameters is by providing the optionname=value pairs directly to a high level plotting function. # Set a graphical parameter within the plotting function hist(mtcars$mpg, col.lab="red") See the help for a specific high level plotting function (e.g. plot, hist, boxplot) to determine which graphical parameters can be set this way. Text and Symbol Size Lines Colors