LUQ LTER folks who have not used USGS (and related) web sites to obtain hydrologic and other data might find the list of web pages below of use:
1. USGS Caribbean District home page--contains links to our water data http://pr.water.usgs.gov
2. USGS Waterwatch page--map of US & PR showing streamflow conditions by flow percentiles (ranked using colors, easy to use) http://water.usgs.gov/waterwatch
3. USGS Waterwatch page- for PR (by clicking on the PR map in the page above, you are linked to the site below). You can then click on any station and see current & recent data. http://water.usgs.gov/cgi-bin/dailyMainW?&map_type=real&state=pr
4. USGS Caribbean District Rainfall data page--contains table of rainfall accumulation for last 5 days by station http://pr.water.usgs.gov/rt-cgi/gen_tbl_pg?page=1&parmgroup=rain
5. USGS Caribbean District Streamflow data page--contains table of current
streamflow data by station:
http://pr.water.usgs.gov/rt-cgi/gen_tbl_pg?page=1
6. USGS Drought map: http://water.usgs.gov/cgi-bin/dailyMainW?state=us&map_type=dryw&web_type=map
7. National Drought Mitigation Center--weekly map showing drought conditions in US & PR http://www.drought.unl.edu/dm/monitor.html
8. USGS current seismicity (earthquake) page--shows most recent quakes in Caribbean-Central American region http://neic.usgs.gov/neis/current/m_america.html
9. NOAA Volcanic Ash advisories- 4 times per day text message, usually with map--links to Soufriere Hills Volcano, Monserrat; useful to see if eruption is in progress and if ash plume is blowing towards PR (right now (Feb. 6, 2003) it is just south of us, at 10,000 ft. elevation--in the excerpted following text, FL100 = 10,000 ft. [OBS ASH CLOUD: SFC/FL100 N1643W06211 N1637W06542 N1721W06457 N1643W06211 MOVING W AT 20 KNOTS.]) http://www.ssd.noaa.gov/VAAC/messages.html
Along with coauthors Scatena, Lugo, and Silver, McDowell is working on a book entitled "Biogeochemistry of a Tropical Forest." It focuses on the elemental inputs, outputs and internal cycles, and will cover the range of elevations found in the LEF. We anticipate that it will complement the Disturbance and Response volume nicely.
McDowell is on sabbatical this semester and is living in PR until 1 May. Address Urb. Solimar, 90 Plaza Barbados, Luquillo, PR 00773; tel. 787 889 6724. His primary focusing is working on the biogeochemistry book.
Recent papers that might be of interest (LEF or general papers)
Merriam, J.L., W.H. McDowell, J.L. Tank, W.M. Wollheim, C.L. Crenshaw, and S.L. Johnson. 2002. Characterizing nitrogen dynamics, transport, and retention in a tropical rainforest stream using an in situ 15N addition. Freshwater Biology 47:143-160.
Neff, J.C., E.A. Holland, F.J. Dentener, W.H. McDowell and K.M. Russell. 2002. The origin, composition and rates of organic nitrogen deposition: a missing piece of the nitrogen cycle? Biogeochemistry 57:99-136.
Dodds, W.K., A. J. López, W. B. Bowden, S. Gregory, N. B. Grimm, S. K. Hamilton, A. E. Hershey, E. Martí, W. H. McDowell, J. L. Meyer, D. Morrall, P.J. Mulholland, B. J. Peterson, J. L. Tank, H. M. Vallet, J. R. Webster, W. Wollheim. 2002. Nutrient uptake as a function of concentration in streams. J. North American Benthological Society 21:206-220.
Mulholland, P.J., J. L. Tank, J. R. Webster, W. B. Bowden, W. K. Dodds, S. V. Gregory, N. B. Grimm, S. K. Hamilton, S. L. Johnson, E. Martí, W. H. McDowell, J. Merriam, J. L. Meyer, B. J. Peterson, H. M. Valett, and W. M. Wollheim. 2002. Can uptake length in streams be determined by nutrient addition experiments? Results from an inter-biome comparison study. J. North American Benthological Society 21:544-560.
McDowell, W.H. 2002. Dissolved organic matter in soils - future directions and unanswered questions. Geoderma 1929:1-8.
Findlay, S., J. Tank, S. Dye, H.M.Valett, P.J. Mulholland, W.H. McDowell, S. Johnson, S.K. Hamilton, J. Edmonds, W.K. Dodds, and W.B. Bowden. Bacterial and fungal biomass in detritus-based microhabitats of a headwater stream. Microbial Ecology (in press).
McDowell, W.H. Nutrient flux from tropical rain forests. In R.S. Ambasht and N.K. Ambasht. Modern Trends in Applied Terrestrial Ecology, Kluwer Academic Press (in press).
McClain, M.E., E. W. Boyer, C. L. Dent, S. E. Gergel, N. B. Grimm, P. M. Groffman, S. C. Hart, J. W. Harvey, C. A. Johnston, E. Mayorga, W. H. McDowell, and G. Pinay. Biogeochemical hot spots and hot moments at the interface of terrestrial and aquatic ecosystems. Ecosystems (in press).
I have received only a few responses to my request for input regarding the continued deployment of HOBO sensors in the LFDP. As I mentioned at the annual meeting (and see attachment), I have a three year record of temperature and corresponding relative humidity data for the first year at each of the 40 points. I intend to take the sensors out of the field in May to dry out the humidity sensors. I am considering various options after that. I can return them to the 40 points, redistribute them among a subset of the 40 points (perhaps with targeting specific edaphic features), or use them for something else. In the absence of support for one or the other of these schemes from my colleagues, I will do what suits my own needs. Let me know if you have opinions one way or the other about this.
The REU program in Ecology and Evolution at El Verde Field Station was renewed by NSF for another cycle of three years. We are currently receiving applications for summer 2003. Further information can be found at:
http://sunites.upr.clu.edu/REU/index.htm
Walker, Lawrence R. and Roger del Moral. 2003. Primary Succession and Ecosystem Rehabilitation. Cambridge University Press. This is the first global summary of the process of ecosystem assembly on barren lands and Puerto Rico landslides are of course featured. We also attempt to bridge theory and management in chapter 8 by discussing management implications for those concerned with rehabilitating abandoned roads (again, some references to our Puerto Rico work), mine tailings, urban and construction sites, landfills, military impacts and so forth. You can order a paperback copy for around $50.00. I will be sending Eda Melendez a complimentary copy for the local LTER community.
Compiled by Jody Potter (Jody.Potter@unh.edu),
University of New Hamshire
Web-published by Eda C. Meléndez-Colom (emelend@sunites.upr.clu.edu)
February 21, 2003