[LTER-luq] Fwd: Final litterfall graph (until we add palms)

[Alan Covich]

Thanks Tim

Very interesting! The nutrient cycling impacts would be great to know more
about.

Alan

On Thu, Aug 6, 2015 at 12:22 PM, Schowalter, Timothy D. <
TSchowalter at agcenter.lsu.edu> wrote:

> Any evidence that herbivory is increasing?  Drought is a typical trigger
> for insect outbreaks.  See the attached Van Bael paper for a tropical
> example.  Tim
>
>
>
> Timothy D. Schowalter, Professor
>
> Department of Entomology
>
> Louisiana State University
>
>    Agricultural Center
>
> Baton Rouge, LA 70803
>
> Phone:    225-578-1827
>
> Cell:        225-252-5226
>
> Fax:         225-578-2257
>
> Email:      tschowalter at agcenter.lsu.edu
>
> Web:       http://entomology.lsu.edu/
>
>
> http://www.lsuagcenter.com/en/our_offices/departments/Entomology/
>
> [image: cid:image001.png at 01CFDCA5.AF95AC10]
>
>
>
>
>
> *From:* luq [mailto:luq-bounces at lists.lternet.edu] *On Behalf Of *Robert
> Waide
> *Sent:* Thursday, August 06, 2015 11:12 AM
> *To:* luq at lists.lternet.edu
> *Subject:* Re: [LTER-luq] Fwd: Final litterfall graph (until we add palms)
>
>
>
> The really interesting thing is that litterfall is actually less
> initially, suggesting that trees have a 2-phase strategy in place for
> drought: hold on as long as possible, then give up and drop your leaves.
>
> On 8/6/2015 10:09 AM, Alan Covich wrote:
>
> WOW! That is an amazing response (to drought?) indicating some type of
> threshold in soil moisture?
>
>
>
> Are data on light to see what the canopy is doing?
>
>
>
> Did you have leaf-fall data from before and after 1994 on the Big Grid?
>
>
>
> Alan
>
>
>
> On Thu, Aug 6, 2015 at 11:56 AM, Jess Zimmerman <jesskz at ites.upr.edu>
> wrote:
>
> Hi All,
>
>
>
> To contribute to our discussions going on, I pass along the litterfall
> graph that Sarah prepared that compares litterfall YTD vs. the averages
> since the CTE started in 2002.  There was an immense amount during one
> single fortnight in May.  It was so much that it took all the staff to
> collect it all.  I spoke to John Bithorn yesterday and he told me he was
> many species, not just a few, that contributed to the peak.  We'll keep you
> posted as more data are added.  We are also analyzing the data set on palm
> litter, too.
>
>
>
> jess
>
>
> Jess K. Zimmerman
> Professor
>
> Lead PI, Luquillo LTER Program
> Department Environmental Sciences
> University of Puerto Rico - Rio Piedras
> Rio Piedras, Puerto Rico
>
> Direct Office Line: 787-350-0350
> Or: 787-764-0000 ext. 1-XXXX-# where XXXX is:
>    LTER Program Office: 2867
>    El Verde Field Station: 4381
>
> Mobile: 787-380-3311
>
>
>
> ---------- Forwarded message ----------
> From: *Sarah Stankavich* <sarahstankavich at gmail.com>
> Date: Wed, Aug 5, 2015 at 1:17 PM
> Subject: Final litterfall graph (until we add palms)
> To: Jess Zimmerman <jesskz at ites.upr.edu>
>
> Here you go
>
>
>
> --
>
> Sarah Stankavich
> LUQ-LTER Coordinator
>
> El Verde Field Station
> 787-222-7756
>
>
>
>
>
>
>
>
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>
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>
>
> --
>
> Robert B. Waide
>
> Executive Director
>
> Long Term Ecological Research Network Office
>
> MSC03 2020
>
> 1 University of New Mexico
>
> Albuquerque, NM 87131-0001
>
>
>
> Phone: 505/277-2649
>
> Fax: 505/277-2541
>
> ResearcherID:  F-5304-2010
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