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A place to read about energy issues, threatened and endangered species, ecological stoichiometry, toxicology, and biogeochemistry.
JL
13 posts
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- October 25, 2011
- 10:00 AM
- 123 views
Ecosystem function in a brown world
by JL in Analyze Everything
I highlighted this paper a few days ago as looking interesting, but after reading it, I felt like expanding a bit. The paper is by Rubbo et al (2011, Aquatic Sciences) and is entitled "Species loss in the brown world: are heterotrophic systems inherently stable?"
Before I get into this paper, I think it is probably worthwhile to put this in some sort of perspective. There are a few ... Read more »
Michael J. Rubbo, Lisa K. Belden, Sara I. Storrs-Mendez, Jonathan J. Cole, & Joseph M. Kiesecker. (2011) Species loss in the brown world: are heterotrophic systems inherently stable?. Aquatic Sciences. info:/
- October 17, 2011
- 08:00 AM
- 174 views
Caddisflies through time
by JL in Analyze Everything
I recently had a paper from a co-worker (Jason Veldboom) come across my semi-ridiculous RSS feed. This paper does something a little bit different than any other publication I've seen: Follow the elemental composition of a population and its (presumably) primary food resource through time.
The study is straight-forward, in that the authors simply sampled a filter feeding caddisfly larvae ... Read more »
Veldboom, J.A., & Haro, R.J. (2011) Stoichiometric relationship between suspension-feeding caddisfly (Trichoptera: Brachycentridae) and seston. Hydrobiologia. info:/
- October 11, 2011
- 11:31 PM
- 173 views
I'm so confused: Comments and Rebuttals in ES&T
by JL in Analyze Everything
So on October 5th, this article by Liao and Kannan entitled “Widespread Occurrence of Bisphenol A in Paper and Paper Products: Implications for Human Exposure” popped up in my google reader (from the journal Environmental Science and Technology). Hmm... I glanced over the article, there’s a bit more exposure risk than I thought apparently. Then, October 10th...5 days later...a comment/... Read more »
Liao C, & Kannan K. (2011) Widespread Occurrence of Bisphenol A in Paper and Paper Products: Implications for Human Exposure. Environmental science . PMID: 21939283
- April 5, 2010
- 03:26 PM
- 258 views
Watershed land use and nutrients
by JL in Analyze Everything
The widespread problems associated with cultural eutrophication are well-known. Essentially, humans dump a lot of biotically important elements into water, and the resulting algal and bacterial dynamics render those waters pretty unfavorable for native species and desirable species (i.e., you get a lot of fish kills and stinky water).
A big source of those nutrients is agriculture. Row-crop ... Read more »
Arbuckle, K.E., & Downing, J.A. (2001) The influence of watershed land use on lake N: P in a predominantly agricultural landscape. Limnology and Oceanography, 46(4), 970-975. info:/
- March 24, 2010
- 10:00 AM
- 260 views
Riparian Restoration: More important than ever with climate change
by JL in Analyze Everything
For people in the conservation/restoration community, trying to deal with climate change is a tough assignment. Years and years of training and conventional wisdom preaches the value of restoring habitat to a 'pristine' state. In the U.S., that usually translates into Pre-European settlement. However, the reality is that the pre-settlement environment may simply no longer exist. Even if those... Read more »
Seavy, N., Gardali, T., Golet, G., Griggs, F., Howell, C., Kelsey, R., Small, S., Viers, J., & Weigand, J. (2009) Why Climate Change Makes Riparian Restoration More Important than Ever: Recommendations for Practice and Research. Ecological Restoration, 27(3), 330-338. DOI: 10.3368/er.27.3.330
- March 22, 2010
- 09:30 AM
- 259 views
Aquatic Invasive Species and the Effectiveness of Education and Outreach
by JL in Analyze Everything
Apparently my friends from Notre Dame are continuing to publish at a feverish rate, because I keep stumbling onto their papers. The latest is by Rothlisberger, Chadderton, McNulty and Lodge, and is all about aquatic invasive species (full cite is below), and I think this paper really throws into question the value of education and outreach.
There are a lot of big questions out there regarding ... Read more »
Rothlisberger, J.D., Chadderton, W.L., McNulty, J., & Lodge, D.M. (2010) Aquatic invasive species transport via trailered boats: What is being moved, who is moving it, and what can be done. American Fisheries Society, 35(3), 121-132. info:/
- March 19, 2010
- 11:41 AM
- 314 views
Organic matter processing and retention
by JL in Analyze Everything
I've already mentioned one of the papers from the big 25th anniversary issue of JNABS. I've now read a handful of these papers, and they continue to be very interesting and a little bit annoying. Why are they annoying? Well, I like the review aspect of the papers, I don't like the "JNABS played X role in the development of X concept", because, really? Who the hell cares? This is a perfect ... Read more »
Tank, J.L., Rosi-Marshall, E.J., Griffiths, N.A., Entrekin, S.A., & Stephen, M.L. (2010) A review of allochthonous organic matter dynamics and metabolism in streams. Journal of the North American Benthological Society, 29(1), 118-146. info:/10.1899/08-170.1
- March 16, 2010
- 12:45 PM
- 360 views
A new test of the Light:Nutrient hypothesis
by JL in Analyze Everything
To review: I love ecological stoichiometry (ES). I find it a fascinating subject and a useful framework for understanding ecological phenomena. However, ES is still relatively new, with a lot of the empirical work restricted to plankton (esp. Daphnia and algae). So it is always interesting to see theories developed predominantly in the pelagic system examined in other habitats.One of the more... Read more »
Hill, W., Smith, J., & Stewart, A. (2010) Light, nutrients, and herbivore growth in oligotrophic streams. Ecology, 91(2), 518-527. DOI: 10.1890/09-0703.1
Urabe, J., & Sterner, RW. (1996) Regulation of herbivore growth by the balance of light and nutrients. Proceedings of the National Academy of Sciences, 93(16), 8465-8469. DOI: 10.1073/pnas.93.16.8465
- March 15, 2010
- 12:00 PM
- 360 views
The bizarre history of rangeland management research
by JL in Analyze Everything
As with the paper from last Friday, today's paper comes from "Ecological Restoration", one of the few journals that is delivered, in print, to our office. So yeah, I've been reading through it. This paper is by Sayre (2010; full cite below) and is basically about how the cultural and scientific beliefs of those living in the desert southwest have shaped the way that restoration has occurred ... Read more »
Sayre, N. (2010) Climax and "Original Capacity": The Science and Aesthetics of Ecological Restoration in the Southwestern USA. Ecological Restoration, 28(1), 23-31. DOI: 10.3368/er.28.1.23
- March 12, 2010
- 02:03 PM
- 351 views
State Use of NRDA (why Florida is pretty awesome)
by JL in Analyze Everything
One of the oddities of state and federal government is the sheer number of regulatory authorities that go unused. For example, the Clean Water Act grants the EPA broad authority to protect the nation's waters. The EPA then actually delegates permitting for the CWA to the Corps of Engineers and state agencies (in many cases). As far as I can tell, many of the authorities embedded in the Clean ... Read more »
Faass, J. (2010) Florida's Approach to Natural Resource Damage Assessment: A Short, Sweet Model for States Seeking Compensation. Ecological Restoration, 28(1), 32-39. DOI: 10.3368/er.28.1.32
- March 11, 2010
- 05:44 PM
- 323 views
A hierarchical framework for assessing environmental impacts of dam operation
by JL in Analyze Everything
The effects of impoundments are big one for people working in aquatic ecosystems. In Kansas, a large number of dams are still being built (and a lot more are in the discussion stages). So I am constantly trying to understand more about the effects of dams and the impacts they have on upstream and downstream aquatic ecosystems. I was recently forwarded the an article by Burke, Jorde and ... Read more »
Burke, M., Jorde, K., & Buffington, J. (2009) Application of a hierarchical framework for assessing environmental impacts of dam operation: Changes in streamflow, bed mobility and recruitment of riparian trees in a western North American river. Journal of Environmental Management. DOI: 10.1016/j.jenvman.2008.07.022
- March 10, 2010
- 12:04 PM
- 387 views
Nitrogen, Phosphorus and Organic Carbon (The Big Three)
by JL in Analyze Everything
I'm a stoichiometry kind of guy (even if I've been relatively unsuccessful lately), and stoichiometry seems to revolve around N, P and C. And really, mostly just N&P. As a result, I've been thinking a lot about how the terrestrial and upstream watershed affects the N, P, and C in receiving waters. So, for instance, if you change the proportion of wetlands, how is the ratio of these nutrients ... Read more »
Saunders, T., McClain, M., & Llerena, C. (2006) The biogeochemistry of dissolved nitrogen, phosphorus, and organic carbon along terrestrial-aquatic flowpaths of a montane headwater catchment in the Peruvian Amazon. Hydrological Processes, 20(12), 2549-2562. DOI: 10.1002/hyp.6215
- March 9, 2010
- 04:52 PM
- 260 views
Landscape approaches for the study of aquatic ecosystems
by JL in Analyze Everything
Well, I'm trying to read a paper a day (this can be really hard with 2 kids and a job that doesn't encourage it), and today I randomly pulled up this paper: Johnson and Host "Recent developments in landscape approaches for the study of aquatic ecosystems" (full cite below). Let's just say that there's a lot here. Basically, this paper is part of a big-time retrospective done by J-NABS in ... Read more »
Johnson, L.B. and G.E. Host. (2010) Recent developments in landscape approaches for the study of aquatic ecosystems. Journal of the North American Benthological Society, 29(1), 41-66. info:/10.1899/09-030.1
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