Questions tagged [biology]
The science of life and of living organisms, including their structure, function, growth, origin, evolution, and distribution.
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Is it possible to connect data from various different layers?
I am working on a project estimating the population of a waterfowl. I have point and line data of where I did counts. I also have bathymetric data, data on vegetation cover, outlines of relevant ...
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1
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How to measure flight activity (in vector lines) of a bird within a boundary using raster analysis
I need to find out the time a bird spends in different areas within a windpark.
I have a shapefile (flight lines) with the following attributes:
"presence" is always = 1, the times ...
- 21
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Trying to make a fish diversity map using ArcGIS 10.7.1
I'm relatively new using ArcGIS. I want to make a fish species richness map (or fish diversity map; essentially tells you how many fish species are in each grid cell). Things I did so far:
Obtained ...
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Measuring percentage overlap between home ranges and another shape file in R
I have tracking data from multiple animals and I have created kernel density estimates of their home ranges. I want to find out the proportion of each home range area that falls within protected areas....
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Do Navigation Apps Shrink the Hippocampus?
A study shows London cab drivers' hippocampi grow compared to a control group of similar non-drivers. I presume these cab drivers don't rely on navigation apps.
...acquisition of an internal ...
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WWF Terrestrial Major Habitat Types [closed]
I need the shapefile of the map attached (or very very similar) - but I can't find. I attached it here.
Somewhere I found a picture where it is named "Terrestrial Major Habitat Types".
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Convex Hull not outputting expected number of features
I have a .csv file with observations of various species and I want a polygon to illustrate the area where those species occur. I ran the Convex Hull, grouped by the species' names field, which ...
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High-resolution, hyperspectral satellite imaging?
I am hoping to expand my (biology-focused) research to include satellite data. For this, I'd need satellite imaging that includes multiple values in the visible spectrum (specifically, above 490nm) ...
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Spatial Index on 100s of Millions of Records Taking Days in PostGIS? [closed]
I have a table with ~200million spatial records in it, and it is taking days to build a spatial index on the one geometry column: should this be taking so long?
The geom column is of the type ...
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Calculating Shannon's diversity using moving window in R
I have a raster where each pixel is a particular vegetation type. I'm interested in the diversity of vegetation types around each pixel.
I'd like to assign a Shannon's diversity index value (see ...
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Getting species geodata (via Lifemapper)
In the search for species occurence data I stumbled on the Lifemapper project (http://lifemapper.org/). For creating biological models they posess a very comprehensive database. Unfortunately it does ...
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Comparing ranges and distributions of species, looking for correlation and differences between ranges
As a biology student just beginning with GIS, I wondere if someone could give me an idea of what tools to go about using to compare the range of 3 species that have trophic effects on one another.
I ...
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Designing ArcPad Quickforms to Collect Biological Data?
I am trying to design a Quickform in ArcPad 10.2 to enable efficient capture of biological survey information in the field on a Trimble Juno 3D.
I am currently investigating using the Form Creation ...
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3
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1
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Counting animals using near infrared imagery from a drone
I am playing around with an idea of using a near infrared camera to fly transects to count animals on the ground. I have been involved in such work earlier, but on bigger mammals and observer based ...
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