Download PDF by David A Hill; et al: Handbook of biodiversity methods : survey, evaluation and

By David A Hill; et al

ISBN-10: 0521823684

ISBN-13: 9780521823685

"The instruction manual presents a useful compendium for ecologists, flora and fauna managers, nature conservation pros, neighborhood and nationwide gurus, environmental managers, company our bodies and firms, govt conservation organizations and regulators keen on auditing ecological assets. it is going to let practitioners to raised video display the situation of the biodiversity source, leading to more suitable info upon Read more...

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Additional resources for Handbook of biodiversity methods : survey, evaluation and monitoring

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4); * the timescale dictated by reporting requirements; and * the availability of funds for surveillance. 2. Aim to make a detailed assessment of the attribute at the required interval (for example, for woodland area, aerial photography may be required at intervals of 10 years). 3. Assess the risk of change from external factors. Habitats and species likely to change over time as a result of planned management actions should be identified, as well as the likely timescale of change in years. For example, it may be a management objective to coppice a woodland area for invertebrates and ground flora.

Quantitative To measure abundance we may instead actually count the number of plants present or, alternatively, what area of ground they cover. This provides a quantitative measure. Other examples are the height of vegetation, the mass of an animal and the number of species at a site. These provide finer, more sensitive measures than ordinal data but may take longer to collect and may be prone to measurement error. g. 0–2 plants, 3–5 plants, etc. Further information on data types can be found in Fowler et al.

The availability of existing data on such factors should therefore be carefully investigated before including them in monitoring programmes. Detailed descriptions of methods for monitoring management actions and external impacts are beyond the scope of this Handbook. However, brief summaries of key management measures and external factors influencing habitats are provided in Chapter 5, together with sources of further information. 6 What are the management objectives for the site? In addition to directly assessing the condition of features of interest, monitoring should, where resources permit, establish whether management objectives are being met.

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Handbook of biodiversity methods : survey, evaluation and monitoring by David A Hill; et al

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