Killer whale demography

Created: 2014-09-24 13:47:21

This workflow analyzes the demography and population growth of resident killer whale populations. Originally created for comparative studies of Northeastern Pacific populations at risk, Southern Resident Killer Whales (SRKW) and the Northern Resident Killer Whales (NRKW), the workflow can be used for other killer whale populations or cetaceans counting with census data and life cycles that can be represented using the matrix models described in this document.

This workflow perform the following analyses:

• Vital rates estimation and probability distributions • Construction of Birth-flow Matrix Model • Eigen analysis • Elasticity analysis (deterministic and stochastic) • Damping time

To run this workflow in Taverna workbench, the users requires to have installed the Interaction Service plugin in Taverna. The workflow also requires an Rserve installation with the popbio, lattice, betareg, Formula and R.utils packages installed.

This workflow has been created by the Biodiversity Virtual e-Laboratory (BioVeL project and Fisheries and Oceans of Canada, BC, Canada. ( BioVeL is funded by the EU’s Seventh Framework Program, grant no. 283359.

Related publications

Vélez-Espino, L.A., John K.B. Ford, Eric Ward, Chuck K. Parken, Larrie LaVoy, Ken Balcomb, M. Bradley Hanson, Dawn. P. Noren, Graeme Ellis, Tom Cooney, and Rishi Sharma. 2013. Sensitivity of resident Killer Whale population dynamics to Chinook salmon abundance. Completion Report, Pacific Salmon Commission, Southern Boundary Restoration and Enhancement Fund, Vancouver BC. 191 p.

Vélez-Espino, L.A., Ford, J.K.B., Araujo, H.A., Ellis, G., Parken, C.K, & Balcomb, K. Comparative demography and viability of northeast Pacific resident killer whale populations at risk. Can. Tech. Rep. Fish. Aquat. Sci. 3084: vi + 56 p.

Vélez-Espino, L.A., John K.B. Ford, H. Andres Araujo, Graeme Ellis, Charles K. Parken and Rishi Sharma. 2014. Relative importance of Chinook salmon abundance on resident killer whale population growth and viability. Aquatic Conservation: Marine and Freshwater Ecosystems. Article first published online: 21 AUG 2014. DOI: 10.1002/aqc.2494.

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