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/pps/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))

Worked out examples


> library(ade4)
> ### Name: bsetal97
> ### Title: Ecological and Biological Traits
> ### Aliases: bsetal97
> ### Keywords: datasets
> 
> ### ** Examples
> 
> data(bsetal97)
> X <- prep.fuzzy.var(bsetal97$biol, bsetal97$biol.blo)
17 missing data found in block 1 
14 missing data found in block 2 
28 missing data found in block 3 
8 missing data found in block 4 
5 missing data found in block 5 
19 missing data found in block 6 
10 missing data found in block 7 
5 missing data found in block 8 
2 missing data found in block 9 
12 missing data found in block 10 
> Y <- prep.fuzzy.var(bsetal97$ecol, bsetal97$ecol.blo)
6 missing data found in block 1 
16 missing data found in block 2 
5 missing data found in block 3 
9 missing data found in block 4 
15 missing data found in block 5 
47 missing data found in block 6 
6 missing data found in block 7 
> plot(coinertia(dudi.fca(X, scan = FALSE), 
+     dudi.fca(Y, scan = FALSE), scan = FALSE))
> 
> 
> 
> 

[Package ade4 Index]