
Identifying & Quantifying
Measuring biodiversity
An ideal biodiversity data set allows one to estimate richness (number of types of life) and even-ness (some measure of how much of each type is present). This is best done at some kind of group level (birds, mammals, wild plants, crops, etc.), with any higher-level integration being more or less subjective so as to take account of complexity, trade-offs and objectives. The Assessing Agrobiodiversity compendium will be of interest to those who want to know more.
Identification, quantification and reporting
The first step is to identify forms of life. The second is to quantify them, and third is to report them. Below you will find some resources to help you identify fauna, flora and fungi, and links to surveys, which provide guidelines for quantifying and reporting one's findings. Members of the Croft Biodiversity Group can draw on these to assess biodiversity on Leith Community Croft.


1. General Resources

2. Birds
Because the British Birds website just reviews the apps and doesn't provide links to them, we thought we'd provide them for you:

3. Mammals
A Battery of Bat ID Resources
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As the 18 species of bats in the UK (17 of which breed here) constitute about a quarter of all the mammal species here, we have collated several bat-related resources.
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Discover Wildlife: How to spot and identify common UK bat species
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Complete Guide to UK Bats | British Bats Species & Conservation
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Natural History Museum: How to see UK bats and give them a helping hand
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BBC Countryfile: Guide to Britain's bats: species, facts, identification and where to see them
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Know Animals: What Do UK Bats Look Like? A Guide to Identifying Common Species

4. Insects
Pollinators​​
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Ladybirds​​​​​
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Woodland Trust: Common UK ladybird identification and facts
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5. Earthworms

6. Spiders
British Arachnological Society
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This website has so much information it's probably sufficient on its own!
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​You could start by looking at:

7. Molluscs

8. Wild plants

9. Lichens, bryophytes and fungi
Natural History Museum: Fungi, lichen and bryophyte survey methods and ID guides
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the British Bryological Society's 'one-stop shop for learning about bryophytes'


















