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Last update: VSACH (17.03.2005)
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Last update: RNDr. Veronika Sacherová, Ph.D. (29.10.2019)
Charles J. Krebs 1999: Ecological Methodology. Addison Wesley, 620. |
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Last update: RNDr. Veronika Sacherová, Ph.D. (29.10.2019)
Oral examination. |
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Last update: VSACH (17.03.2005)
1) Absolute and relative density and methods of their estimation examples. Absolute methods overview: total inventory, quadrate sampling, linear transect, capture re-capture, catch effort method, change in ratio method, methods based on distance, selection of method according to type of organisms and aim of study.
2) Repetition of statistical terms, distribution of the data, relationships between types of the data, selected statistical test type of method and sampling design used for density estimation. Data variability and errors, types of errors, analysis of errors in individual step of data collection and its minimalization cost benefit ratio.
3) Total inventory - use and limitation. Methods based on area sampling (samples, quadrate counts, line transect). Principe of methods size and shape of sampling area, spatial distribution of organisms, regular, random, or clustered distribution and its implication for statistical distribution of data.
4) Sampling design of are sampling methods, random sampling (what is and what not random sampling is), regular, or stratified sampling, the effect of spatiotemporal scale, geostatistics.
5) Methods based on distance of objects, principle, distance to closest organisms, distance between organisms, modification for large areas ?sparse sampling"
6) Capture re-captures and catch per effort methods change in ratio methods. Principe and limitation.
7) Examples - invertebrates in side various substrates namely in soil and sediments absolute density methods - number and size of sampling areas, composite samples, case studies, methods of sampling, extraction techniques, (heat extraction, flotation etc.). Sampling design, logistic limitation examples.
8) Examples - invertebrates emerging from soil or sediments flying or moving on soil surface, absolute and relative density, pitfall traps, emergence traps, the effect of object size and activity, limitations of relative abundance data. Sampling design, logistic limitations examples.
9) Examples - fish. Overview of methods (total catch inventory; mark recapture methods catch per unit effort; (CPUE).
10) Examples fish Overview of techniques used for fish tramping (nets electric current, etc.) efficiency limitations selectivity Sampling design, logistic limitations examples.
11) Observation methods and its use in density estimation, acoustic methods (passive and active ones) - possibilities and limitation, example of post processing of acoustic data, other observation methods, telemetry. |