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Questions related from Gerardo Avalos
I am researching the genus Bonellia and would like better to understand the mechanisms of seed dispersal and pollination in its species. Could anyone explain or provide references or contacts on...
23 September 2024 1,512 2 View
Allometric equation estimate carbon and above-ground biomass based on diameter, height, tissue density, etc.
07 May 2023 5,591 0 View
I have a published phylogenetic tree but no access to the rough data used to generate the tree. I want to compare among clades in terms of morphological characters. How do I include the...
18 September 2022 9,477 1 View
I have had some success germinating Ginkgo seeds in Costa Rica. I would like to know recommendations to secure seedling establishment. Right now they are in 1.5 L plastic bags on organic soil at...
20 November 2021 8,494 4 View
Dear all, I have a limited supply of Ginkgo biloba seeds from Japan. My purpose is to germinate the seeds and hopefully establish some G. biloba specimens in Costa Rica. What could be the best...
22 October 2021 1,012 9 View
I am running an ANCOVA to measure differences in an allometric relationship between tree height (dependent variable) and diameter (covariate) among one nutrient treatment with 4 levels. One of the...
09 October 2021 2,333 8 View
I am looking for free images of plant anatomical structures to be included in a book on plant anatomy. Specifically, I am looking for light microscope images of plant cells and tissues. I have...
29 March 2021 6,097 6 View
With COVID-19 universities around the world are switching to online courses overnight. However, many faculty are not used to online courses and do not have the platforms that will make this task...
14 March 2020 905 20 View
Dear colleagues, I would like to find recommendations on software options to analyze population viability. I used VORTEX a while back. However I would like to see if there are other alternatives....
26 August 2019 9,696 3 View
Castilleja talamancensis in the Talamanca mountain range in Costa Rica is found in the Páramos above the treeline. I would like to find recent references on its pollination biology. I have seen...
31 October 2016 7,231 6 View
I need to analyze videos of hummingbirds visiting flowers and artificial feeders. I am interested in quantifying interactions as well as resource use, and thus, I need software that will allow me...
25 February 2016 5,840 2 View
I need to create a simple map. However, I have been unable to find something simple, and hopefully free (it should have layers such as roads and protected areas). I have tried some applications...
01 January 2016 6,125 34 View
What is their regeneration strategy? Are these species shade tolerants from seedlings to adults? Where can I find information on their growth rates?
03 August 2015 680 5 View
Is there a simple way to quantify the amount of volume consumed by a hummingbird using artificial feeders? This could be very minute amounts every time a hummingbird sips the solution from the...
12 November 2014 8,895 3 View
The manuals I have seen are a bit frustrating. They are either too simple, or too complex. Is there a manual that has a strong intro to R, good explanation of multivariate stats, and good intro to...
10 July 2014 4,004 10 View
I wonder if out there someone could provide a manual that explains how to set up the cables of the Hansatech oxygen electrode. The equipment I have is a bit old (from the mid 90s), and thus, I...
18 October 2013 9,378 4 View
