efficiency: Efficiency

In samuelVJrobinson/CPForage: Central Place Foraging model based on the Ideal Free Distribution

Description

Returns Efficiency (ratio of profits/losses) for a forager in a given cell.

Usage

efficiency(L, L_max, e, d, v, h, f, l, p_i, c_i, c_f, H, alphaVal, betaVal, S)

Arguments

L	Load size (μL)
L_max	Maximum load size (μL)
e	Energetic value of nectar (J/μL)
d	Distance from hive (m)
v	Unloaded flight speed from hive (m/s)
h	Handling time per flower (s)
f	Flight time between flowers (s)
l	Maximum standing crop per flower (μL)
p_i	Licking speed for nectar (μL/s)
c_i	Cost of non-flying behaviour (J/s)
c_f	Cost of flight (J/s)
H	Time spent inside hive (s)
alphaVal	Increase in metabolic rate with load (J/(s*μL))
betaVal	Reduction in flight speed with increase in load
S	Competition term (0-1)

Value

Efficiency (dimensionless). Efficiency = \frac{Gains - Foraging Loss - Travel Loss - Hive Loss}{Loading Loss + Travel Loss + Hive Loss} Called by curr_i.

Examples

efficiency(L=50,L_max=59.5,e=14.35,d=100,v=7.8,
 h=1.5,f=0.86,l=1,p_i=1,c_i=0.0042,c_f=0.05,H=100,S=0.5,
 alphaVal=0.013,betaVal=0.102/59.5)

samuelVJrobinson/CPForage documentation built on Jan. 20, 2021, 6:22 p.m.