islasgeci/tosh_population_size

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By Conservación de Islas

Updated 25 days ago

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Townsend's Shearwater Population Dynamics on Socorro Island

We assumed that the burrow density is proportional to the calling rate. Here, the larger area refers to the potential nesting area, while the smaller area refers to the area where we conducted an intensive burrow search. We used the burrow density and the calling rate in the smaller area to estimate the burrow density in the larger area. The calling rate was 3.01 (calls per minute) in the smaller area and 2.03 (calls per minute) in the larger area. For the larger area, we estimated a burrow density of 0.000024 burrows per square meter. Multiplying this density by the larger area, we get 175 burrows or breeding pairs of Townsend's shearwater on Socorro Island for 2021.

Population structure

ClassPairs
Pre-breeding183
Breeding175
Non-breeding158
TOTAL516

Tasks

Pending

  • Translate tosh_population_size.pdf
  • Describe Eq. 1
  • Use t_0=2016 (instead of t_0=2021)
  • Calculate confidence intervals using re-sampling
  • Find report for LAAL where we simulated growth rate with and without intervention

Done

  • Share repository tosh_population_size to NFWF through GitHub
  • Send results as a spreadsheet
  • Add NFWF scenario to table
  • Add fourth scenario to description
  • Add new scenario with breeding success ρ = 0.6 (instead of ρ = 0.75)
  • Translate tosh_population_dynamics.pdf

Docker Pull Command

docker pull islasgeci/tosh_population_size