loggerhead: Loggerhead sea turtle stage-based life tables
In BruceKendall/mpmtools: Tools for Building and Analyzing Matrix Population Models
Description
Usage
Format
Source
References
Description
Two stage-based life tables (differing in how adults are broken out) of the Little Cumberland Island loggerhead sea turtle
population, set up to use as
input to make_stage4age_matrix. Note that these tables do not exactly
generate the stage-based matrices published in the sources. The matrix in Table 4 of
Crouse et al. (1987) has inappropriate reproduction matrix elements for a
postbreeding-census matrix, and has an apparent typo in the survival of adults. The
matrix in Table 2 of Crowder et al. (1994) differs in the third decimal place of
subadult reproduction, probably as a consequence of rounding the maturation fraction
before multiplying by the adult maternity.
Usage
1
Format
A list with two elements, each being a data frame with four named columns.
Source
loggerhead[[1]] is derived from Table 3 of Crouse et al. (1987), and
loggerhead[[2]] is Table 1 of Crowder et al. (1994).
References
Crouse, D. T., L. B. Crowder, and H. Caswell. 1987. A stage-based
population model for loggerhead sea turtles and implications for conservation.
Ecology 68:1412-1423.
Crowder, L. B., D. T. Crouse, S. S. Heppell, and T. H. Martin. 1994. Predicting the
impact of turtle excluder devices on loggerhead sea turtle populations. Ecological
Applications 4:437-445.
BruceKendall/mpmtools documentation built on May 21, 2019, 1:42 a.m.
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Description Usage Format Source References
Description
Two stage-based life tables (differing in how adults are broken out) of the Little Cumberland Island loggerhead sea turtle
population, set up to use as
input to make_stage4age_matrix. Note that these tables do not exactly
generate the stage-based matrices published in the sources. The matrix in Table 4 of
Crouse et al. (1987) has inappropriate reproduction matrix elements for a
postbreeding-census matrix, and has an apparent typo in the survival of adults. The
matrix in Table 2 of Crowder et al. (1994) differs in the third decimal place of
subadult reproduction, probably as a consequence of rounding the maturation fraction
before multiplying by the adult maternity.
Usage
1 |
Format
A list with two elements, each being a data frame with four named columns.
Source
loggerhead[[1]] is derived from Table 3 of Crouse et al. (1987), and
loggerhead[[2]] is Table 1 of Crowder et al. (1994).
References
Crouse, D. T., L. B. Crowder, and H. Caswell. 1987. A stage-based population model for loggerhead sea turtles and implications for conservation. Ecology 68:1412-1423.
Crowder, L. B., D. T. Crouse, S. S. Heppell, and T. H. Martin. 1994. Predicting the impact of turtle excluder devices on loggerhead sea turtle populations. Ecological Applications 4:437-445.
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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