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I am looking for some guidance on producing density and population estimates from a point count dataset for about a dozen grassland bird species while linking relationships to a suite of habitat data. I had intended to use package 'detect', adapting previously used code, but in light of a recent paper by Solymos et al. 2018, it does not seem appropriate for these data, as all species have fewer than the 1000 detection sample size suggested by Solymos. So I have been struggling to determine whether using a function in the package 'unmarked' is appropriate or if I should be looking to program Distance. The purpose of my project is practical grassland bird habitat management and conservation. With unmarked, I am unsure which functions should be utilized and how to get the process going. I have reviewed various literature on the package, but would greatly appreciate any help here. Here is the structure for my data: 37 sites, 521 points, 2 survey visits in one year, 3 distance bands (0-50m, 50-100m, >100m), 5 - 1min time intervals-singing & non-singing detections recorded separately survey covariates: site_name, survey_yr, time since local sunrise, sky, wind, temp, surveyor habitat covariates: 29 variables: 12 different grassland community types (proportion), 10 disturbance types (proportion), cover: herb, shrub, bare (integer), height: herb, bare, shrub (integer) Thank you in advance for any help you can provide! David
The Centre for Research into Ecological and Environmental Modelling (CREEM) is hosting two linked workshops in the summer of 2013 in our purpose-built facilities at the University of St Andrews, Scotland. The aim of these workshops is to train participants in the latest methods for design and analysis of distance sampling surveys, including line and point transects. The workshops are taught by leading researchers in the field, using industry-standard software. The first workshop (20-23 August) will run at an introductory level, and will focus on distance sampling methods, largely described in the standard reference book "Introduction to Distance Sampling." The workshop will be a blend of theory and practice and participants will learn how to use the program "Distance." Participants will gain a solid grounding in both survey design and methods of analysis for distance sampling surveys. Note that we have moved the 'automated survey design' and 'incorporating covariates in detection function' from the advanced workshop into the introductory workshop. The advanced distance sampling workshop (26-29 August) will include advanced treatment of: analyses in which detectability on the transect line is not assumed to be perfect (the so-called g(0) problem) and spatial (or density surface) modelling. We will also showcase a series of new R packages we have developed for performing standard as well as sophisticated analyses in R. The aim of this workshop is to bring participants up to date with the latest developments in distance sampling methods and software. It is also an opportunity for those actively engaged in the design, analysis and execution of distance sampling surveys to discuss common issues and problems, and set future research directions. The workshop will be a combination of lectures and computer sessions, with considerable time for discussion. For all workshops, participants are encouraged to bring their own data sets, and can expect to do some preliminary analyses with their data. Computer sessions take place in our modern computer classroom (attached to the seminar room); participants can use our computers or bring their own laptops. Additional details regarding the workshop can be found at our website http://www.ruwpa.st-and.ac.uk/distance.workshops/distance2013/workshop_overview.html
The newly renamed Smithsonian-Mason School of Conservation, a partnership between George Mason University and the Smithsonian Conservation Biology Institute (SCBI), is proud to announce their Spring/Summer 2013 course schedule. The School is now offering more courses than ever before, in a wide range of topics, all focused on training in different aspects of biodiversity conservation, from effective conservation leadership, to technical tools in statistics and field sampling. All courses are currently either 1 or 2-week intensive residential courses and they will now be held in a brand-new, sustainably-built Academic Center on the grounds of SCBI in Front Royal Virginia. Most courses can be taken either for graduate credit or continuing education units. See our upcoming offerings below and check out our website for more course details and pricing. Smithsonian-Mason School of Conservation Graduate/Professional Training Courses SPRING/SUMMER 2013 Front Royal, Virginia, USA Visit our website (http://SMConservation.gmu.edu) or email us at SCBItraining@si.edu for more details about each course, course costs, and credits earned. Statistics for Ecology and Conservation Biology March 4-15, 2013 Gain in-depth knowledge of analysis techniques for cutting-edge ecological research, employing R: classical regression models; mixed models; generalized linear models; generalized additive models; how to deal with the limitations of real datasets; and conservation-specific approaches. Estimating Animal Abundance and Occupancy (new course!) April 1-12, 2013 The course is designed to provide a strong theoretical and analytical background to both graduate students and professionals in distance sampling, mark-recapture, and occupancy modeling techniques, with a strong focus on the practical use of field data in the programs DISTANCE, MARK and PRESENCE. Species Monitoring & Conservation: Terrestrial Mammals April 29-May 10, 2013 This course teaches current techniques in assessment and monitoring of wild mammal populations, including bats. Participants learn principles of study design; current field assessment methods; data analysis techniques including MARK and DISTANCE software; application of monitoring data to decision-making and population management; and collection and preparation of museum voucher specimens. Species Monitoring & Conservation: Reptiles (new course!) May 13-24, 2013 This course will provide technical training in the essential aspects of reptile conservation. In addition to providing hands-on experience with current field monitoring techniques, participants will also learn to analyze mark-recapture, distance sampling and occupancy field data. The course will also include a review of reptile taxonomy and phylogeny, and the role of captive propagation in reptile conservation. Non-Invasive Genetic Techniques in Wildlife Conservation June 1-7, 2013 Learn how new developments in non-invasive genetics allow biologists and managers to answer questions in animal behavior, population biology and population management. Course participants will work through a directed research project, from study design through field data collection, sampling protocols, and DNA extraction and amplification, to analysis of microsatellite and sequence data. Adaptive Management for Conservation Success June 10-21, 2013 This course is taught in partnership with Foundations of Success (FOS). Working in teams on a real conservation project, participants practice conceptualizing projects, formulating objectives and providing evidence of conservation results. The course builds skills in designing and planning effective projects that provide clear evidence of conservation impact, and in use of Miradi adaptive management software.
Guest posted a topic in Workshops & Short CoursesThis came across the distance sampling list today: