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07 August 2017 247 0 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

Any recommendations for methods to analyze elephant space-use (using GPS) and correlating this with changes in NDVI?

For my Masters I am looking into elephant space-use and its effect on vegetation change. I have elephant GPS collar data and was going to use Google Earth Engine to obtain NDVI values. I would...

16 February 2021 7,097 3 View

How to consider effects of rapid warm adaptation in modeling of ecological impacts of warming?

I would highly appreciate it if my fellow ecologists (biologists) provide their opinion on the thoughts below [esp., shortly tell us which path may be more effective, if they know another way, if...

15 February 2021 3,642 6 View

What is the magnitude of yearly rhizopdeposition in tropical forests?

Hi all, I am trying to find reference values on annual soil rhizodeposition rates for different kinds of forests, with a particular interest for tropical rainforests. Do we have an idea of the...

26 January 2021 4,278 4 View

Can you recommend a good book on analytical chemistry for non-chemists?

Dear colleagues, I am asking for you recommendation: I need a book on analytical chemistry in environmental sciences. As a non-chemist (a biologist) I have some basic chemistry knowledge but not...

25 January 2021 8,486 8 View

Why are my Maxent SDM projections coming up almost entirely blue?

Hello Maxent Community, I have been generating SDM models and projections in Maxent. I have had some success with one set of variables (some Hydroshed variables mixed with World CLIM variables);...

19 January 2021 3,994 7 View

How deep into the sediment do marine/riverine oligochaetes live?

I am working with intertidal muddy sediments. In one of my sites the sediment was extremely muddy (high % of silt), oxic layer was shallow, and there were a lot of oligochaetes. I would like to...

14 January 2021 7,269 4 View

How to make open-top chambers?

Hi, I wonder if someone would share experience with building open-top chambers for surface heating of soil. My main question is what material can be used to build them? I found researchers using...

05 January 2021 5,396 6 View

R package for multivariate dispersion as a measure of beta diversity?

Hello, everyone: I've been reading some old and new papers on how to compute beta diversity using incidence or abundance data from several assemblages/communities. For my data, I am interested...

03 January 2021 9,293 1 View