How to insert one section of a raster inside another?

Hi all, I'm trying to insert one section of a raster inside another. Both rasters have same resolution, origin and CRS and I'm not trying to resample an area based on a different set of values,...

01 June 2020 1,249 2 View

Do fig trees grow in significantly higher densities closer to rivers?

I'm doing some spatial analysis of fig trees, using the locations of trees as a point process for Bayesian modelling. I'm considering whether to include the proximity to rivers as a spatial...

13 May 2020 7,429 6 View

BEAST: Real long branches causing negative branch lengths?

Hi everyone. I am trying to date the divergence of Cuscuta from the rest of Convolvulaceae using the BEAST software package. Cuscuta is a parasitic lineage and therefore many of the generally...

05 November 2018 1,704 4 View

Can anyone recommend a good online dictionary of collocations for academic writing in English?

I would like to offer support to postgraduate students and content specialists who have English as an L2 and need to write academic papers in that language. Many thanks

10 November 2017 7,326 22 View

Does anyone know of software for monitoring colour change in time-series imagery of forest canopy?

Looking for software for monitoring colour change produced by new leaves, so red pigmentation.

04 September 2016 4,872 4 View

Does anyone know the absolute minimum amount of tissue necessary for DNA barcoding analysis?

18 November 2014 5,657 3 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 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

Your thoughts on the spherical densiometer to estimate relative species canopy cover?

Hi biologists and biogeomorphologists, I want to characterize vegetation plots on a transect that follows a successionnal gradient from a river bed to a mature forest. Ecologically, I am...

26 February 2021 5,720 2 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

Treating Intermediate Variable in Linear Regression Analysis in SPSS?

While performing the Linear regression analysis in SPSS version 26.0.0. my intermediate/mediation variable goes to the excluded section. Please share your valuable suggestion "How to restrain the...

25 February 2021 4,591 5 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View