IsoPOPd Web Interactive: Interactive software code to understand how elements in a population matrix model influence the asymptotic population growth rate
Hanley, Brenda; Connelly, Patrick; Dennis, Brian
Population matrix models are used to transform wildlife field data into information on population viability. However, the mathematical process behind this transformation has long proven to be a black box to many practitioners. Using the characteristic equation of a 3-stage model matrix, we present new interactive software that shows how life history characteristics collapse into growth rates. The software contains dynamic graphics that display how life history traits combine and interact as positive and negative contributions to the growth rate. The app may be used to investigate 511 different 3-stage life history strategies.
The IsoPOPd software was updated by B. Hanley on Oct 2, 2019 to incorporate suggestions made by scientific peer reviewers during the formal peer review process. The updates to the IsoPOPd software include changes to the wordings in some paragraph narratives and the the configurations of some of the tabs. The graphics, scientific results, and the mathematical equations (that generate the results) remain unchanged when compared to the original version.
asymptotic growth rate; conservation; ecology; eigenvalue; Lefkovitch matrix; Leslie matrix; population dynamics; population modeling; population matrix models; resource management; wildlife
This software is being shared under a MIT license. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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