bsetal97: Ecological and Biological Traits

In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences

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))

ade4 documentation built on Feb. 16, 2023, 7:58 p.m.