R: Ecological and Biological Traits

bsetal97 {ade4} | R Documentation

## Ecological and Biological Traits

### Description

This data set gives ecological and biological characteristics of 131 species of aquatic insects.

### Usage

    data(bsetal97)

### Format

`bsetal97` is a list of 8 components.

species.names

  is a vector of the names of aquatic insects.

taxo

  is a data frame containing the taxonomy of species: genus, family and order.

biol

  is a data frame containing 10 biological traits for a total of 41 modalities.

biol.blo

  is a vector of the numbers of items for each biological trait.

biol.blo.names

  is a vector of the names of the biological traits.

ecol

  is a data frame with 7 ecological traits for a total of 34 modalities.

ecol.blo

  is a vector of the numbers of items for each ecological trait.

ecol.blo.names

  is a vector of the names of the ecological traits.

### Details

The 10 variables of the data frame `bsetal97$biol` are called in `bsetal97$biol.blo.names` and the number of modalities per variable given in `bsetal97$biol.blo`. The variables are: female size - the body length from the front of the head to the end of the abdomen (7 length modalities), egg length - the egg size (6 modalities), egg number - count of eggs actually oviposited, generations per year (3 modalities: <= 1, 2, > 2), oviposition period - the length of time during which oviposition occurred (3 modalities: <= 2 months, between 2 and 5 months, > 5 months), incubation time - the time between oviposition and hatching of the larvae (3 modalities: <= 4 weeks, between 4 and 12 weeks, > 12 weeks), egg shape (1-spherical, 2-oval, 3-cylindrical), egg attachment - physiological feature of the egg and of the female (4 modalities), clutch structure (1-single eggs, 2-grouped eggs, 3-egg masses), clutch number (3 modalities : 1, 2, > 2).

The 7 variables of the data frame `bsetal97$ecol` are called in `bsetal97$ecol.blo.names` and the number of modalities per variable given in `bsetal97$ecol.blo`. The variables are: oviposition site - position relative to the water (7 modalities), substratum type for eggs - the substratum to which the eggs are definitely attached (6 modalities), egg deposition - the position of the eggs during the oviposition process (4 modalities), gross habitat - the general habitat use of the species such as temporary waters or estuaries (8 modalities), saturation variance - the exposure of eggs to the risk of dessication (2 modalities), time of day (1-morning, 2-day, 3-evening, 4-night), season - time of the year (1-Spring, 2-Summer, 3-Automn).

### Source

Statzner, B., Hoppenhaus, K., Arens, M.-F. and Richoux, P. (1997) Reproductive traits, habitat use and templet theory: a synthesis of world-wide data on aquatic insects. Freshwater Biology, 38, 109–135.

### References

See a data description at http://pbil.univ-lyon1.fr/R/pdf/pps029.pdf (in French).

### Examples

    data(bsetal97)
    X <- prep.fuzzy.var(bsetal97$biol, bsetal97$biol.blo)
    Y <- prep.fuzzy.var(bsetal97$ecol, bsetal97$ecol.blo)
    plot(coinertia(dudi.fca(X, scan = FALSE),
        dudi.fca(Y, scan = FALSE), scan = FALSE))

[Package ade4 version 1.7-19 Index]