recruitment.eachspp {CTFS} | R Documentation |
Computes annual recruitment rate for each species. Any two census datasets can be provided in order of date of census. The annual recruitment rate and other statistics are computed for each species.
recruitment.eachspp(census1, census2, mindbh=10, alivecode = c("A", "AB","AS"))
census1 |
name of census datafile for first census, must be a
dataframe, must be of same length as census2 |
census2 |
name of census datafile for second census, must be a
dataframe, must be of same length as census1 |
mindbh |
minimum DBH in census1 for inclusion in computation. |
alivecode |
character, codes of the variable status
that indicate the tree is alive. The most general valid categories are: "A" and
"AB" and "AS". |
See CTFS.recruitment
for details on the computation of
recruitment rates and associated functions.
Any two censuses on a datafile must be used. They do not have to be
sequential, only that census1
has to be before census2
.
The results of recruitment
can be organized into
dataframes with the use of assemble.demography
.
recruit
returns a list of arrays with the
following named component. Values are reported for each species. If no value can
be computed then 0 or NA is returned as appropriate.
$N1 |
the number of living trees at the second census |
$R |
the number of trees that were recruited between the first and second census |
$rate |
the recruitment rate in %/year |
$lower |
the lower 95% confidence interval |
$upper |
the upper 95% confidence interval |
$time |
mean number of years between census for trees used in recruitment rate computation. |
$date0 |
mean date of first census |
$date1 |
mean date of second census |
Rick Condit and Pamela Hall
## Not run: rec.spp.out <- recruitment.eachspp(tst.bci90.full,tst.bci95.full) rec.spp.out ## End(Not run)