Re: [ECOLOG-L] differential gps advice, please
when using the trimble GPS you can also set one as base and leave it there to correct over the data you will recover with the other (active/ moving) Trimble GPS... but as you have heard... you need open areas to get this level of accuracy. good luck! Bruno Ghersi Lima, Peru. 2012/10/28, Jay Guarneri : > Tim: > > Differential GPS should get you that sort of accuracy in most situations > where you are not under dense canopy cover or in a canyon. You do NOT need > permission from the govermnent for that precision, as differential GPS is a > civilian workaround to get similar accuracy as the military-only GPS bands. > > At that level of accuracy, you would want a mapping grade GPS: standard > recreational grade GPS just won't cut it, and a survey grade GPS would be > overkill and way more expensive. I've only used Trimble GeoXH data > collectors, but I believe there are others on the market. They should come > with software that will allow you to set up data collection forms (data > dictionaries), plan for the best GPS measurement times, retrieve data from > the GPS, differentially correct it using the CORS (continuously operating > reference station) network, and export the data to a shapefile, table, > etc.. With good satellite geometry and no canopy or other obstructions, > you can get accuracies in the 10-20cm range without to much difficulty. > Recording more GPS readings per record (I usually use 30-60 for a point) > will improve your accuracy via averaging. Mapping grade GPS aren't cheap, > but I saw at least one used Trimble on Ebay. > > This tutorial should walk you through DGPS concepts: > http://www.trimble.com/gps_tutorial/dgps.aspx > > Let me know if you need any further clarification. > > Best, > > Jay > > > -- > Jay Guarneri > 403 S Main St Apt 1 > Monticello, AR 71655 > (631) 813-8218 > guarn...@uamont.edu >
Re: [ECOLOG-L] Sherman trap labels
Hi Janean, we have used sharpies for sherman traps, but when washing them the code/number fades off and requires to remark each time.. in other words.. a lot of work.. but also we have need to relabel as we use the same traps for other studies and if they are numbered some way its a lot of work to take the number out when they are painted ... so all depends on what you want to do with them.. and if the numbering you would use will be usefull for other studies.. good luck! Bruno Ghersi NAMRU-6 Lima, Peru 2013/4/9 Janean Sharkey > Hi All, > > I need to mark/label several hundred aluminum small mammal traps (e.g. > Sherman Traps). Options so far have been spray paint, metal stamping, > Sharpie marker, even using an adhesive label. I would like a method that is > quick, inexpensive, does not interfere with the functioning of the trap and > relatively permanent. I am leaning towards spray paint. > > Does anyone have any experience with any of these methods? > > Feel free to message me off list. > > Thanks! > > Janean >
Re: [ECOLOG-L] Used a tablet for field work?
i have heard of the use of PDAs for data entry long ago... just doing a google search i found this webpage... i guess there are many other like this... http://www.doforms.com/ one advantage with PDAs was the entrance of GPS data.. but now any cellphone has GPS... about the touch screen... all depends if you have all your data entry preprogramed... i guess.. but using a stylus would be better.. i have used a Garmin to enter GPS and data and as all mentioned the sun is a problem... you need some kind of cover to be able to read it... cheers Bruno 2012/5/16, Hillary White : > In my experience (Android tablet using an excel spreadsheet) these are the > major issues that should be considered: > > 1) glare / screen contrast - the glare screen accessories don't really > work that well in an outdoor setting, especially in full to partial sun. > 2) touchscreen compatibility with stylus - some tablets don't allow you to > use a stylus. If you have any sort of insect repellent or sunscreen on your > fingertips your screen will suffer (not sure if the glare screens will > protect from chemicals). Also, touchscreens don't work well while wearing > gloves- though there are special gloves on the market for this reason. > 3) on screen keyboard - when you bring up the keyboard it will cover the > majority of your spreadsheet which may or may not be an issue depending on > the size of your spreadsheet's row height. > 4) ruggedness - it's probably worth the money to buy ruggedized tablets > because the are designed to protect against field elements (humidity, dust, > rain, etc) > > These are just some of the things I would consider when choosing among > tablets if you decide to replace tried-and-true paper datasheets. > > Best, > > Hillary > > Hillary White > Terrestrial Ecologist > Davis, CA > > > > > On Wed, May 16, 2012 at 8:42 AM, David Inouye wrote: > >> I'd like a way to replace data entry on paper in the field with an >> electronic alternative. Ultimately the data end up in a spreadsheet, but >> sometimes using formulae (e.g., 3*5 + 4*2 + 6, for numbers of >> inflorescences with different numbers of flowers). Has anyone used >> something like the Blackberry PlayBook, an Android tablet, Nook, iPad, >> etc. >> with spreadsheet software? Recommendations for or against particular >> solutions? >> >> I have also considered a ruggedized PC and a ruggedized tablet (Motion >> F5V), but they are a LOT more expensive than other tablet options would >> be. >> >> David Inouye >> >
Re: [ECOLOG-L] Geographic Precipitation and Temperature Data
Have you chequed on NOAA? if you are in a military facility it would be much easier to download the data. Bruno Ghersi NAMRU-6 Lima, Peru 2013/6/17 Robert Ford > R. > > Depending on what you are wanting to do with things, the National Atlas > website (http://www.nationalatlas.gov/atlasftp.html?openChapters=#chpclim) > has tons of data, including Bat ranges, temperature, and precipitation. I > should also note, that this is for the United States only. > > Hope this helps! > > Robert Ford > > > > From: Ecological Society of America: grants, jobs, news [ > ECOLOG-L@LISTSERV.UMD.EDU] on behalf of R. Hardy Hendren [ > hendrenr...@mail.vmi.edu] > Sent: Monday, June 17, 2013 12:35 PM > To: ECOLOG-L@LISTSERV.UMD.EDU > Subject: [ECOLOG-L] Geographic Precipitation and Temperature Data > > Hello, my name is Hardy Hendren. I am an undergraduate student at the > Virginia Military Institute, and I am studying Eastern Red Bats (Lasiurus > borealis). > > As part of my research, I am looking for a way to find temperature and > precipitation data for specific geographic coordinates. These coordinates > are located across the United States, Central America, and South America. > > If anyone knows of an effecient way to obtain temperature and > precipitation data for specific geographic coordinates, I would appreciate > your response. > > Thank You, > R. Hardy Hendren > Virginia Military Institute >
[ECOLOG-L] voucher tags
Dear ecologers: I'm planning to start trapping small mammals in the peruvian amazon and I'm looking for voucher tags to use when placing the vouchers in Formalin. can anybody recomend me a webpage or source to get this? last time I bought ones they desintegrated. thanks a lot Bruno Ghersi NAMRU-6 Lima, Peru
Re: [ECOLOG-L] Solar power
Hi Peter, we were trying to buy one for our field work a time ago and found this brand: Goal Zero they have packs depending in your needs (what you want it to power and for how long) the packs come with the solar panel and the batery. http://www.goalzero.com/solar-kits we used the small ones to power field centrifuges on the field. Bruno Ghersi 2014-04-04 11:24 GMT-05:00 Malcolm McCallum < malcolm.mccallum.ta...@gmail.com>: > Here is one source of modular solar. > there are smaller arrays available. > Livestock farmers use small solar arrays to heat water vats, which is > probably less electricity than you need. However, there are a number > of solar pannels for gate openers and such. NT has other smaller > arrays. Also, could check the farm stores in that regard (e.g tractor > supply, orchleins, farm king). I believe Forestry Suppliers may also > have some smaller versions. > However, this solar array would probably cover everything you are > wanting, and a bit more if needed. > http://www.northerntool.com/shop/tools/product_200482863_200482863 > > > On Fri, Apr 4, 2014 at 10:13 AM, Peter Stuart > wrote: > > Hello all,We are looking to get solar panels in our research station in > Sumatra. > > However, nobody has any experience in purchasing them. > > Basically we need to run two laptops and a fridge freezer off them. If > there was some function to charge a back up battery to ensure the freezer > does not thaw out that would be great too. > > Any information or guidance would be great. Even just enough so we are > not convinced to purchase the most expensive one when we buy one! > > Please send responses to peterdstu...@hotmail.com > > Thanks, > > Peter Stuart > > > > -- > Malcolm L. McCallum > Department of Environmental Studies > University of Illinois at Springfield > > Managing Editor, > Herpetological Conservation and Biology > > "Nothing is more priceless and worthy of preservation than the rich > array of animal life with which our country has been blessed. It is a > many-faceted treasure, of value to scholars, scientists, and nature > lovers alike, and it forms a vital part of the heritage we all share > as Americans." > -President Richard Nixon upon signing the Endangered Species Act of > 1973 into law. > > "Peer pressure is designed to contain anyone with a sense of drive" - > Allan Nation > > 1880's: "There's lots of good fish in the sea" W.S. Gilbert > 1990's: Many fish stocks depleted due to overfishing, habitat loss, > and pollution. > 2000: Marine reserves, ecosystem restoration, and pollution reduction > MAY help restore populations. > 2022: Soylent Green is People! > > The Seven Blunders of the World (Mohandas Gandhi) > Wealth w/o work > Pleasure w/o conscience > Knowledge w/o character > Commerce w/o morality > Science w/o humanity > Worship w/o sacrifice > Politics w/o principle > > Confidentiality Notice: This e-mail message, including any > attachments, is for the sole use of the intended recipient(s) and may > contain confidential and privileged information. Any unauthorized > review, use, disclosure or distribution is prohibited. If you are not > the intended recipient, please contact the sender by reply e-mail and > destroy all copies of the original message. >
Re: [ECOLOG-L] edible parasites?
In Peru we eat a larvae named Suri. it's the grub or larvae of the palm weevil Rhynchoporus palmarum. people will fry them. eat them raw or harvest their fat to drink (some say it's medicinal...) Bruno Ghersi 2014-05-01 17:45 GMT-05:00 Ruth McDowell : > A friend who worked closely with Inuit hunters in the Arctic told me that > they eat botfly larvae from under the skin of caribou they have killed. > > Ruth > > > > On Thu, May 1, 2014 at 6:49 AM, Judith S. Weis > wrote: > > > I've never heard of pea crabs being consumed on purpose. It's usually > when > > you pop a mussel in your mouth, get a surprise, and go "pfah" and see the > > little crab on your plate! > > > > > > > > > > > At a dinner conversation with Carl Zimmer (author of Parasite Rex, > > > etc.) the question came up of whether there are any parasites > > > regularly consumed as food (not unintentionally with your food). I > > > came up with one animal (pea crab) and one fungus (huitlacoche; corn > > > smut). Do you know of others? > > > > > > David Inouye > > > > > >
