Re: [ECOLOG-L] Some ideas for advancing grad education in the face of scarcity

2014-08-30 Thread Reinhart, Kurt
Ryan has many good points.  There are certainly roles for faculty, students, 
and groups of each.  My comments are on some low hanging fruit concerning 
graduate student training.


Recognizing the mentioned employment trends, highly motivated/passionate (grad) 
student groups should identify opportunities to have speakers from varied 
careers provide not only scientific talks but separate short talks on their 
careers.  Any school with a seminar series could easily increase their 
students' exposure to varied careers by 1) promoting career diversity among the 
roster of speakers and 2) asking relevant speakers to add content (5-10 min of 
their 45 min talk) on career/jobs stuff [or provide a separate mini-talk on 
their career as X working for Y to the student group].

I know of one large biology department that has acknowledged the cited 
employment trends and funded an annual roundtable organized by their students.  
The goal appears to be to empower students to organize a workshop and expose 
their students to varied career opportunities.  The professionals (6-12) were 
all non-academics and were pressed to talk about their unique career paths.  
ESA has done similar things.

Kurt
___
Kurt Reinhart, Experimental Plant Ecologist
USDA-Agricultural Research Service
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Rd.
Miles City, MT 59301
Ph: (406) 874-8211
Lab website


-Original Message-
From: Ecological Society of America: grants, jobs, news 
[mailto:ECOLOG-L@LISTSERV.UMD.EDU] On Behalf Of Ryan McEwan
Sent: Monday, August 25, 2014 6:01 AM
Subject: Some ideas for advancing grad education in the face of scarcity

 As the semester kicks off, I wanted to share some thoughts I had over the 
summer on graduate eduction:
---

August 25, 2014



Some ideas for advancing graduate education in ecology in a time of scarcity 
The science of Ecology, like most scientific disciplines, is in the midst of a 
crisis of sorts stemming from at least two underlying factors.  First, funding 
for science at a national level is stable or in decline, while the number of 
labs that need funding to persist is rising sharply.  Second, the number of 
PhDs being granted is vastly outpacing the job market.  According to some 
analyses the percentage of newly granted PhDs that got a job as a tenure track 
academic in the 1970s was nearly 50%, while that number today is less than 10% 
http://www.ascb.org/ascbpost/index.php/compass-points/item/285-where-will-a-biology-phd-take-you
.
 In the face of this gloomy picture, action is required and I believe there are 
some clear steps we can take.  In my view, lobbying for more federal money, 
tweaking how funds are distributed, working toward some supplements to federal 
funds (e.g., crowdsourceing..like this https://www.kickstarter.com/ and that 
https://experiment.com/) are good things to fight for.  Those are supply 
side issues...I would like to also propose some practices in graduate training 
that may be helpful:
(a) revive and respect the Master's degree.

In my experience, some faculty view a Master's degree as a kind of failure.  
They tell their very best undergrads to avoid doing a Master's and head 
straight to the PhD.  It is a waste of time they advise, “the Master's degree 
is functionless”, you can't do anything with that degree,
etc.

In fact, many, talented, intelligent, undergraduates have no business doing a 
PhD because they are not suited to the particulars of the academic enterprise.  
We should do our best to only bring people into PhD programs who are clearly 
dedicated to every facet of the pursuit (see below).

A MS is a good option for many (most, all?) students interesting in career in 
ecology.  A MS serves as a vital testing ground, even for students who feel 
confident they want to do a Doctorate. A MS gives the student a chance to 
discover if research is really an endeavor they want to dedicate their life 
to--  statistical analysis, writing, digging through the literature-- in 
addition to field work, lab work, or setting up and maintaining an experiment.  
In my experience ~50% of the undergraduates who think they want to do a PhD, 
who faculty might say you really should do a PhD, will change their mind 
during a MS degree.  In which case, that student can finish up the MS and head 
off to a job, instead of leaving a PhD partway through, which is a bad 
situation for both the student and the mentor.

Screening students in this way will help the PhD glut we currently face, 
resulting in fewer ABDs in the world, fewer PhDs who leave the field, and 
will allow those involved with training PhD students to focus energy on 
students who are more likley to stay the course and succeed.


(b) filter hard for students coming into our PhD programs.
I would recommend a MS and at least one peer-reviewed article submitted, as a 
general qualification for admittance into a PhD program.

GREs and course 

[ECOLOG-L] grinding equipment for plant DNA barcoding project (but large quantities of plant material per sp)

2014-06-02 Thread Reinhart, Kurt
I'm needing to devise a system to grind 28 samples of single species plant 
material (range of 0.5-26g per sp) for a DNA barcoding project.  There are DNA 
extraction procedures for grinding plant material but they typically work with 
miniscule amounts of plant material (~0.05 g) and don't seem relevant.  I need 
something that will enable me to process much larger amounts.  I also need it 
to be simple enough to effectively clean and remove extraneous DNA (e.g. bleach 
or DNA Exitus Plus) between samples.  We have a wiley mill but it seems highly 
likely to have DNA carryover (i.e. DNA contamination).

My first thought was liquid nitrogen and a mortar and pestle but this 
techniques is also typically done on samples that are pretty small (~1g) and am 
not sure it would work with such large quantities of plant material without me 
getting a repetitive use injury.  I then thought larger quantities of material 
could be processed with a blender (with water  not liquid nitrogen)  then 
freeze dry the homogenized sample.  Ideally, I would like the final material 
fine enough to pass through a 2mm screen but can possibly change this 
tolerance.  Suggestions?

Kurt
___
Kurt Reinhart, Experimental Plant Ecologist
USDA-Agricultural Research Service
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Rd.
Miles City, MT 59301
Ph: (406) 874-8211
Lab websitehttp://www.grasslandscience.net/





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[ECOLOG-L] soil feedbacks plant abundance

2012-09-28 Thread Reinhart, Kurt
Hello-

I'm trying to determine all studies that have quantified soil feedbacks for 6 
or more plant species in a community and also have measures of plant relative 
abundance for each species with a soil feedback value.  If you have such data 
(published or unpublished), know of someone who has done this work, or have 
questions then please contact me.  Thanks in advance.


These are studies I'm already familiar:
Klironomos, J. N. 2002. Feedback with soil biota contributes to plant rarity 
and invasiveness in communities. Nature 417:67-70.
MacDougall, A. S., M. C. Rillig, and J. N. Klironomos. 2011. Weak conspecific 
feedbacks and exotic dominance in a species-rich savannah. Proceedings of the 
Royal Society B: Biological Sciences 278:2939-2945.
Mangan, S. A., S. A. Schnitzer, E. A. Herre, K. M. L. Mack, M. C. Valencia, E. 
I. Sanchez, and J. D. Bever. 2010. Negative plant-soil feedback predicts 
tree-species relative abundance in a tropical forest. Nature 466:752-755.
McCarthy-Neumann, S., and R. K. Kobe. 2010. Conspecific plant-soil feedbacks 
reduce survivorship and growth of tropical tree seedlings. Journal of Ecology 
98:396-407.

Cheers,
Kurt


___
Kurt Reinhart, Ecologist
USDA-Agricultural Research Service
Fort Keogh Livestock  Range Research 
Laboratoryhttp://www.ars.usda.gov/Main/docs.htm?docid=3087
243 Fort Keogh Rd.
Miles City, MT 59301
Ph: (406) 874-8211
Email: kurt.reinh...@ars.usda.gov





This electronic message contains information generated by the USDA solely for 
the intended recipients. Any unauthorized interception of this message or the 
use or disclosure of the information it contains may violate the law and 
subject the violator to civil or criminal penalties. If you believe you have 
received this message in error, please notify the sender and delete the email 
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[ECOLOG-L] soil health demos

2011-02-16 Thread Reinhart, Kurt
Had to pass this link along for Ray the Soil Guy-

 

http://vimeo.com/channels/raythesoilguy 

 

If you're interested in reducing erosion and use of pesticides,
herbicides, fertilizers, and petroleum while increasing drought
tolerance, agricultural production, carbon sequestration in soils, and
overall sustainability of agriculture then have a look, link to your
website, /or share with a friend.  Many of you are familiar with these
stories but these guys are on the front lines and doing an amazing job
of changing the minds of farmers  ranchers.

 

Hats off to Ray's group for promoting sustainable stewardship of land.

___

Kurt Reinhart, Ecologist

USDA-Agricultural Research Service

Fort Keogh Livestock  Range Research Laboratory
http://www.ars.usda.gov/Main/docs.htm?docid=3087 

243 Fort Keogh Rd.

Miles City, MT 59301

Ph: (406) 874-8219

Email: kurt.reinh...@ars.usda.gov

Personal educational website: http://www.iecology.net/

 


[ECOLOG-L] post-doc Microbial Ecology

2011-01-31 Thread Reinhart, Kurt
A postdoctoral fellow position in Microbial Ecology is available at the
Fort Keogh Livestock  Range Research Laboratory
(http://www.ars.usda.gov/Main/docs.htm?docid=3087
http://www.ars.usda.gov/Main/docs.htm?docid=3087 ) in eastern Montana.
The fellow will collaboratively contribute to a team project on recovery
of mixed-grass prairie vegetation following fire and contribute to
building an understanding of fire effects of fluxes in soil nutrients,
microbial populations, and microbial functional genes.  Major duties
include developing and optimizing real-time quantitative (qPCR) PCR and
phospholipid fatty acid (PLFA) profiling techniques.  Fellow will also
coordinate research with ARS scientists and technicians, perform
management duties, analyses, and development manuscripts.

 

The ideal candidate will have a PhD in microbial ecology or a related
field of study that has equipped the applicant with the necessary
knowledge, skills and abilities to perform the duties and
responsibilities of the position. Extensive research experience in
microbial ecology and capacity to develop and optimize techniques in
molecular biology (e.g. qPCR) and/or PLFA profiling are important.
Excellent written and oral communication skills are also essential in
order to communicate effectively with colleagues, the public, other
researchers, and prepare research publications.

 

This is a full-time, temporary position not to exceed 2 years with a
possible extension up to 2 years. Fellow will most likely be a GS-11:
$57,408 per year plus benefits package ( no relocation compensation).
Start date is preferably May 2011, but flexible.  For a full description
of the job advertisement and necessary application materials please
visit-

http://federalgovernmentjobs.us/jobs/Interdisciplinary-Research-Ecologis
t-Research-Molecular-Biologist-2156113.html 

[this link often gets broken in two for some reason so double check that
it makes sense  looks complete]

 

In a nutshell, read full advert to determine if you are
eligible/interested and email a cover letter, CV, and reference contacts
as a PDF to Kurt Reinhart (kurt.reinh...@ars.usda.gov), with the subject
line as FK Postdoc application your name by February 28, 2011.

 

___

Kurt Reinhart, Ecologist

USDA-Agricultural Research Service

Fort Keogh Livestock  Range Research Laboratory
http://www.ars.usda.gov/Main/docs.htm?docid=3087 

243 Fort Keogh Rd.

Miles City, MT 59301

Ph: (406) 874-8219

Email: kurt.reinh...@ars.usda.gov

Personal educational website: http://www.iecology.net/

 


[ECOLOG-L] R code to calculate relative interaction intensity soil feedback

2010-12-06 Thread Reinhart, Kurt
This message contains some R code that some of you may find useful.  

 

Previously, I emailed some R code to various people that I knew were
doing soil feedback studies.  However, I began to realize that other
people (e.g. plant competition folks, etc.) might benefit from
seeing/using the code to estimate relative interaction intensity (RII)
[or something else] with a resampling (bootstrapping) approach.  The
code is relatively simple so not worthy of a paper but something that is
still worth sharing.  You can decide.

 

Pasted email-

I'm a bit of a newbie with R but after beating my head against a wall
for a couple of days made a (minor to R experts) breakthrough that I
thought was worth sharing.  The R code estimates a soil feedback
parameter (RII [relative interaction intensity {Armas et al Ecology
2004}]) and its confidence intervals using a bootstrapping procedure in
R.  You can change this equation to something else if you wish.  You
should be able to paste it into R and have it work as a trial as written
(you may need to download the boot library 1st if you don't already have
it).  You can then adapt it as needed by changing the city, x and u
names to fit your own dataset.  Enjoy! 

I derived it mostly from here-

http://stat.ethz.ch/R-manual/R-patched/library/boot/html/boot.ci.html

 

A statistician reviewed and approved it so it should work as expected.
Feel free to share it with others.  If you make any useful changes then
please let me know.

Cheers, Kurt

 

# lets you see city dataset so that you can understand its simple
structure

 

city

 

library(boot)

 

# makes RII calculation for city dataset which has two columns of data

# imagine column U being equivalent to a column of biomass data when
plants

# are grown in soil A and X equivalent to a column of biomass data when
plants

# were grown in soil B

 

# confidence intervals for the city data

 

RII - function(d, w) (mean(d$x * w) - mean(d$u * w))/(mean(d$x * w) +
mean(d$u * w))

boot(city, RII, R=999, stype = w)

city.boot - boot(city, RII, R = 999, stype = w, sim = ordinary)

boot.ci(city.boot, conf = c(0.90,0.95),

type = c(norm,basic,perc,bca))

 

 

___

Kurt Reinhart, Ecologist

USDA-Agricultural Research Service

Fort Keogh Livestock  Range Research Laboratory
http://www.ars.usda.gov/Main/docs.htm?docid=3087 

243 Fort Keogh Rd.

Miles City, MT 59301

Ph: (406) 874-8219

Email: kurt.reinh...@ars.usda.gov

Personal educational website: http://www.iecology.net/


Re: [ECOLOG-L] Camera Help Needed

2010-04-22 Thread Reinhart, Kurt
Miranda  others,

Finding a relatively inexpensive solution to a long term photography
setup may not be possible.  Here are some ideas though.

A couple of reasonably priced cameras with housing exist that can be set
to do time-lapse pictures where you specify the time the camera is on
(e.g. 7-8AM) and the picture interval (e.g. 15min).  This would give you
2-4 pics per day.

You have a 4MP camera option (PlantCam) for $80 not including memory
cards and possible DIY power options
http://swampschool.org/new/outdoor-nature-cameras/wetland-plantcam/
(note: they show some wetland field applications on this website)  I
just purchased one of these but haven't started using it yet but can
possibly answer some related questions.  For the price it looks like it
will work well.  The Swampschool mentions the unit will run for ~8wks.
Might go longer with lithium batteries...  Whether you can ID birds with
only 4MP is another question.

A higher end 8MP option with motion sensor capabilities and time-lapse
capabilities (probably like those described above) is the Wingscapes
BirdCam 2.0 (http://www.wingscapes.com/productdetail.aspx?id=WSCA02)
($199).  Both products are actually made by Windscapes.  I don't know if
this will also run for 8wks or not.

For DIY power options, you may want to check out this forum
(http://www.timescapes.org/phpBB3/viewforum.php?f=12sid=fce0929ad7886c3
9ca92703c42d305c4) on how to power time-lapse camera rigs.  You can
pretty much modify anything to run off extended power...  This website
also has information on DIY camera enclosures so you could go that route
and use the previously mentioned Canon CHDK route.  However, there are a
lot of factors to consider when doing these (internal glare off glass,
humidity) besides the obvious power and memory issues.

Some pricey options (~$2K) can be found in a few different places-
https://www.harbortronics.com/Products/TimeLapsePackage/

and
http://www.video-monitoring.com/products.htm (I think you can rent
these)

If you google  sciencelookers you'll see that this person has made
some really inexpensive longterm time-lapse cameras and enclosures.  Not
sure if he/she'll loan you or sell you one...

Cheers,
Kurt

___
Kurt Reinhart, Ecologist
USDA-Agric. Research Service
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Road
Miles City, MT 59301-4016

Ph: (406) 874-8211
email: kurt.reinh...@ars.usda.gov
personal educational website: http://www.iecology.net/


-Original Message-
From: Ecological Society of America: grants, jobs, news
[mailto:ecolo...@listserv.umd.edu] On Behalf Of Miranda Redmond
Sent: Wednesday, April 21, 2010 1:04 PM
Subject: Camera Help Needed

Hi,

I am looking to set up field cameras at different wetland sites to get
an 
idea of what bird species are present.  I would like the camera to be
able 
to:
   -stay out in the field for 4 months without needing to be checked on
   -have a timer setting where it could take a few photos every morning 
(on a timer, ie one at 7 am and one at 8am)
   -be protected and safe from the elements
   -be fairly inexpensive

I was thinking I could hook up the camera to a car battery or solar 
panels, and hopefully get a camera with an intervalometer built in.
Does 
anyone have any recommendations?  I know trail camera's have the power 
supply set up and will last in the field for a few months, but they are 
only used for taking motion detection photos.  

Let me know if you have any ideas and recommendations!

Thank you!
Miranda Redmond
mirandaredm...@gmail.com
(415) 300-6901


[ECOLOG-L] Summer internship: Soil Ecology

2010-02-19 Thread Reinhart, Kurt
(Sorry if this is a repost but my original submission did not initially
appear)

 

The Fort Keogh Livestock and Range Research Laboratory in Miles City,
Montana is advertising a summer internship as a Soil Ecologist for a
college/university student.  The job pays well and provides the intern
with the opportunity to acquire hands-on work experience and learn about
employment opportunities with the USDA's dedicated research unit the
Agricultural Research Service (ARS).  The application deadline is April
2, 2010 and a full announcement (pdf) can be found here
http://ars.usda.gov/SP2UserFiles/Place/5434/SoilEcologyInternAnnc.pd
f.

 

Cheers,

Kurt

___

Kurt Reinhart, Ecologist

USDA-Agric. Research Service

Fort Keogh Livestock  Range Research Laboratory
http://www.ars.usda.gov/Main/docs.htm?docid=3087 

243 Fort Keogh Road

Miles City, MT 59301-4016

 

Ph: (406) 874-8211

email: kurt.reinh...@ars.usda.gov

personal educational website: http://www.iecology.net/
http://www.iecology.net/ 


[ECOLOG-L] Ques: seed germination of few mixed-grass prairie plants

2009-10-26 Thread Reinhart, Kurt
Hi,
 
Despite having collected seed and done some preliminary germination
trials, we are now having some trouble getting seed for a few species to
germinate in sufficient quantities for an experiment.  Our biggest
offender is an exotic forb (Logfia arvensis aka Filago arvensis,
Gnaphalium arvense, and Oglifa arvensis).  We have limited viable seed
for Loar so are trying to use it sparingly.  I would appreciate
receiving germination recommendations and/or purchasing any extra seed
that you may have of Loar.
 
I would also appreciate germination tips for three others that we have
ample seed supplies.
1) Pascopyrum smithii (western wheatgrass)
2) Astragulus crassicarpus
3) Astragulus missouriensis
 
For #1-3, we had 10-30% germination in our trial (Petri plate and filter
paper) but are having lower success now in pots and trays.
 
Thanks,
Kurt
 
Kurt Reinhart, Research Ecologist
USDA-ARS
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Road
Miles City, MT 59301 USA
email: kurt.reinh...@ars.usda.gov
Office: (406) 874-8211
Fax: (406) 874-8289
educational website: http://iecology.net http://iecology.net/ 
 


Re: [ECOLOG-L] Are ecologists the problem?-- can cows get a break

2009-09-11 Thread Reinhart, Kurt
It seems that the green movement has chosen beef as their poster child
for all that is wrong with agriculture.  I agree that overconsumption of
any one thing, including beef, is likely to have negative effects on
health and that livestock produce methane, an important greenhouse gas.
Most of the vilification though appears to stem from high profile news
stories about livestock production in feedlots.  

However, I am continually amazed to see cattle and wildlife convert the
inedible semi-arid grasslands that surround where I live in Montana into
something that I can use (meat and leather) and provide incomes for
others in the region.  I certainly could not survive by eating native
plants from the northern steppe mixed-grass prairie but ruminant
livestock can.  This makes me think that a piece of the production cycle
is likely being overlooked by the critics of livestock production as
they selectively choose to portray the industry as one dimensional.
Here in Montana (ranking in the top 10 cattle production states), most
cattle are supported by grasslands (i.e. rangelands) for a considerable
portion of the year.  Our extreme winters require that many receive
supplementation (hay) in the winter but use rangelands during much of
the year.  In fact, the production cycle has been set to maximize
utilization of the natural rangeland forges/NPP (i.e. late winter/early
spring calving) to build the bulk of a cow while they are mostly just
maintained over winter.  We still have feedlots but they are rare
relatively to rangeland fed beef production systems.

Although you can cherry pick examples of how livestock grazing degrades
regional rangelands (probably mostly from other regions), most producers
( BLM) in the region have adopted grazing management that is
sustainable.  This region historically had bison, so the grasslands are
resistant to grazing.  In many respects, the livestock are now
functional analogs to bison (see
http://www.esajournals.org/doi/abs/10.1890/04-1958).  I suspect bison
also emit methane.  To have a sustainable business and maintain the
numerous multi-generational ranches in the region, livestock producers
HAD to develop sustainable practices since the days of the open range,
overgrazing, and forage exploitation are long gone.  This has helped to
maintain relatively natural and diverse grasslands throughout the region
that probably don't look that different from what they did ~120 years
ago when bison grazed the region (but who really knows).  This region
has found what appears to be a balance between maintaining considerable
natural habitat and wildlife while also providing food and fiber that
provide incomes and maintain livelihoods to those in rural communities.
In most cases, I would say the livestock industry is an important
partner in maintaining natural lands and wildlife in this region much
more than an antagonist.

Most livestock operations here make money by selling cattle that are
exported to other states and likely end up on feedlots at the later
stages of their production cycle (e.g. 8 months or more prior to
slaughter) [I know that uses fossil fuels].  They are moved to feedlots
to improve their meat quality which is now part of market expectations.
However, much of their body was built off of resources from natural
grasslands.  I suspect it is inaccurate to assume that most cattle on
feedlots have been their for their entire lives eating corn.  Someone
out there probably has an actual statistic for the % of American beef
that have spent at least a portion of their lives on rangelands.

So lets not get too caught up in negative stereotypes and not forget
that livestock production systems are diverse and some help to support
natural systems that other forms of agriculture/development would likely
degrade while still providing food, fiber, and incomes.

Kurt

Kurt Reinhart, Research Ecologist
USDA-ARS
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Road
Miles City, MT 59301 USA
email: kurt.reinh...@ars.usda.gov
Office: (406) 874-8211
Fax: (406) 874-8289
educational website: http://iecology.net


-Original Message-
From: Ecological Society of America: grants, jobs, news
[mailto:ecolo...@listserv.umd.edu] On Behalf Of Kevin McCluney
Sent: Tuesday, September 08, 2009 8:50 PM
Subject: Are ecologists the problem?

I recently attended the 2009 annual meeting of the Ecological Society of
America (ESA).  The theme of this year's meeting was sustainability.
There were many great talks on this subject and a few truly pessimistic
ones.  One speaker proposed that human beings are, by our very nature,
destined to consume and reproduce as much as possible, and despite our
best efforts, this will lead to our own demise.  During the same talk
the speaker also asked, who is responsible?  He answered his question
by saying that we at this conference are just as much a part of the
problem as anyone else.

Is this true?  I know I myself have taken many steps to lower my

[ECOLOG-L] Educational website with multimedia content

2009-06-11 Thread Reinhart, Kurt
I've been revising and re-revising an educational website of mine during
the evenings. It is now polished enough that I would like to share it
with you. I hope that you'll take the time to check it out
(http://www.iecology.net/index.html http://www.iecology.net/index.html
). At the bottom is a list of some of my favorites to help get you
started. 

The site is dedicated to providing multimedia content to experience
ecological concepts in a fresh and inviting way. Topics cover a range of
fields (biology, ecology, plant development, botany, microbiology,
etc.). The site contains 37 unique narratives (17 in panorama section
and 20 in time-lapse section) that include 20 time-lapse videos, 8
interactive panoramas, and numerous other panoramas and photographs.
Besides this, the site also contains helpful information on Ecology as a
career and pursuing graduate studies in Ecology (see Favorites section).
A range of other helpful links are also provided.

Here are a few of my favorites:

time-lapse videos (the first two were redone this week)-

http://www.iecology.net/tl_dampingoff.html
http://www.iecology.net/tl_dampingoff.html 

http://www.iecology.net/tl_monarch.html
http://www.iecology.net/tl_monarch.html 

http://www.iecology.net/tl_mushroom.html
http://www.iecology.net/tl_mushroom.html 

interactive panoramas-

http://www.iecology.net/pano_gaps.html
http://www.iecology.net/pano_gaps.html 

If you really like the site then please let me know.  Enjoy, Kurt
 
Kurt Reinhart, Research Ecologist
USDA-ARS
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Road
Miles City, MT 59301 USA
email: kurt.reinh...@ars.usda.gov
Office: (406) 874-8211
Fax: (406) 874-8289
educational website: http://iecology.net http://iecology.net/ 
 


[ECOLOG-L] tubes for inserting bags to explore mycorrhizae

2009-06-04 Thread Reinhart, Kurt
As a graduate student, I painstakingly build PCV tubes with carefully
drilled holes and glued selective membranes over the openings to allow
arbuscular mycorrhizal fungi (AMF) to pass into tubes where plants grew.
Now, I would like to do something similar but with a different aim.  I
would like to insert tubes with selective membranes (or no membranes and
instead have sand in membrane sacks) into grasslands to permit sampling
of AMF related response variables each year.  A tube would allow
repeated sampling from a location instead of burying sacks and
extracting them--this incorporates spatial variability if sacks are
planted into different spots each interval.  Ideally, I would like to
purchase something that already has openings (holes, slits, etc.) that
will permit me to add sand bags, cap, and periodically remove bags.  Are
any of you doing something similar to measure extraradical hyphae,
glomalin, nutrients using resin bags, etc.?  I'm sure there is a product
related to some sort of filtration for aquaculture, industry, etc. that
already has openings and can be modified to function as such a tube.
Any tips?  
 
Cheers,
Kurt
 
Kurt Reinhart, Research Ecologist
USDA-ARS
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Road
Miles City, MT 59301 USA
email: kurt.reinh...@ars.usda.gov
Office: (406) 874-8211
Fax: (406) 874-8289
educational website: http://iecology.net http://iecology.net/ 
 


[ECOLOG-L] simulate grazing with mowing treatments

2009-05-08 Thread Reinhart, Kurt
I am looking for ideas on modifying a lawn mower (or something
functionally equivalent) to create mowing treatments that will
approximate different levels of non-selective herbivory by livestock in
semi-arid grasslands.  Unfortunately, the chemical treatments to the
vegetation that I'm planning prevents utilizing e.g. sheep to naturally
graze plots.  A mowing solution might require modifying it to attach to
an alternate frame to create the ability for setting a wide range of
cutting heights to produce different utilization levels (e.g. 45 and
75%) and compensate for variable production among years.  Ideally it
will also collect/suck up cut material to avoid creating profuse leaf
litter so it might need a separate vacuum for sucking up material when
cutting at e.g. 25cm off the ground. I suspect safety flaps will also
need to be installed to protect the operator from flying debri.  We have
some really handy shop staff that can build just about anything.  So I'm
mostly looking for ideas, likely pitfalls to avoid, etc.

Any body built something similar or know someone that has?

Kurt

mailto:ECOLOG-L@LISTSERV.UMD.EDU 
Kurt Reinhart, Research Ecologist
USDA-ARS
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Road
Miles City, MT 59301 USA
email: kurt.reinh...@ars.usda.gov
Office: (406) 874-8211
Fax: (406) 874-8289
educational website: http://iecology.net http://iecology.net/ 
 


Re: [ECOLOG-L] How To Read Critically [ other related stuff]

2008-08-27 Thread Reinhart, Kurt
This is a shameless plug for a document that I wrote entitled, On
Graduate Studies in Biology.  A pdf version can be downloaded from this
link http://www.biol.ttu.edu/Graduate.aspx?#11 or you can email me
directly if you would like me to email you a pdf version directly.  

This is an educational document.  The three main sections are: 1.
Getting into Graduate School, 2. Philosophy and Tactics for Graduate
Studies in Biology, and 3. Tips Every Graduate Student Should Know from
the Start.  Near the start of section, Tips Every Graduate Student
Should Know from the Start (On page 12 of 19) is a paragraph providing
some tips on reading scientific papers efficiently.  Admittedly, these
are probably more advanced tactics that assume students can already
interpret figures, tables, etc.

Cheers,
Kurt Reinhart


[ECOLOG-L] Research Leader Position - eastern Montana

2008-06-02 Thread Reinhart, Kurt
We have an opening for a Research Leader position at the Fort Keogh
Livestock  Range Research Laboratory (www.ars.usda.gov/npa/ftkeogh
http://www.ars.usda.gov/npa/ftkeogh ) in Miles City, Montana.  We are
a modern research laboratory with genetics, animal nutrition, animal
physiology, and grassland/range ecology labs.  To compliment our modern
laboratories we have 55,000-acre of experimental lands.  This is
literally where the deer and antelope roam.  The city is surrounded by
approximately a 100mile radius of intact mixed-grass prairie consisting
of state, federal (BLM), and private lands.  We are part of the USDA
Agricultural Research Service (USDA-ARS) of the Northern Plains.  

 

The successful candidate will join the Livestock  Range Research
Laboratory and interact with nine research scientists, nearly forty
support staff, Montana State University extension service staff, and
regional producers and stakeholders (e.g. BLM, etc.).  A successful
candidate will supervise the research scientists and three
administrative staff; maintain a research program; and oversee the
management of the research facility.  Research scientists conduct
research in the areas of genetics, nutrition, and reproductive
physiology and rangeland ecology with the goals of improving the
efficiency of rangeland based animal production systems and reducing the
ecological and economic risks inherent to managing a rangeland based
animal production system.  

 

A formal job description can be viewed at
http://jobsearch.usajobs.gov/getjob.asp?JobID=53679887
http://jobsearch.usajobs.gov/getjob.asp?JobID=53679887 .  The position
is a GS 14/15 with a pay range of $91,781.00-140,355.00 per year plus
federal health and retirement benefits.  The position is scheduled to
close July 14, 2008.

 

About Miles City-

We are situated in eastern Montana adjacent to the Yellowstone and
Tongue Rivers amidst rolling grasslands and rugged badlands.  This is a
small city of 8,000+ but functions as a regional hub with hospitals,
schools, a community college, etc..  Most scientists moving to the area
from Universities boast of its affordability, town's Old West charm,
outdoor opportunities, and quality of life.  For more information see
the Chamber of Commerce link:
http://www.mcchamber.com/tiki-index.php?page=Community%20Profile. 

 
Kurt Reinhart, Research Ecologist
USDA-ARS
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Road
Miles City, MT 59301 USA
email: [EMAIL PROTECTED]
Office: (406) 874-8211
Fax: (406) 874-8289
 


Research Leader Position - USDA-ARS

2007-11-15 Thread Reinhart, Kurt
Position- USDA-ARS Research Leader=20

=20

The 55,000-acre Fort Keogh Livestock  Range Research Laboratory
(http://www.ars.usda.gov/Main/docs.htm?docid=3D3087
http://www.ars.usda.gov/Main/docs.htm?docid=3D3087 ) in Miles City,
Montana is opening a search for a new research leader.  We are a modern
research laboratory [renovated in 2004] part of the Agricultural
Research Service of the Northern Plains area of the United States
Department of Agriculture (USDA-ARS). =20

=20

The successful candidate will join the Livestock  Range Research
Laboratory and interact with nine diverse research scientists, nearly
forty support staff, Montana State University extension service staff,
and regional producers and stakeholders.  A successful candidate will
supervise the research scientists and three administrative staff;
maintain a research program; and oversee the management of the research
facility.  Research scientists conduct research in the areas of
genetics, nutrition, and reproductive physiology and rangeland ecology
with the goals of improving the efficiency of rangeland based animal
production systems and reducing the ecological and economic risks
inherent to managing a rangeland based animal production system. =20

=20

A formal job description can be reviewed at http://www.usajobs.gov/
http://www.usajobs.gov/  ({just google ARS-X8W-0009} Job
Announcement #: ARS-X8W-0009).  SALARY RANGE: 89,115.00 - 136,273.00 USD
per year.  The due date for the job is November 28, 2007. =20

=20

About Miles City-

We are situated in eastern Montana amidst rolling grasslands and rugged
badlands.  This small city of 8,000+ functions as a regional hub with
hospitals, schools, a community college, etc..  Most scientists moving
to the area from Universities boast of its affordability, town's old
west atmosphere, and quality of life (also read
http://www.mcchamber.com/tiki-index.php?page=3DCommunity%20Profile
http://www.mcchamber.com/tiki-index.php?page=3DCommunity%20Profile )

=20
Kurt Reinhart, Research Ecologist
USDA-ARS
Fort Keogh Livestock  Range Research Laboratory
243 Fort Keogh Road
Miles City, MT 59301 USA
email: [EMAIL PROTECTED]
Office: (406) 874-8211
Fax: (406) 874-8289
=20