volume_from_length {TrenchR}

Organism Volume from Length

Description

The function estimates volume (m³) from length (m) for a variety of taxa following Mitchell (1976).

Usage

volume_from_length(l, taxon)

Arguments

l

numeric length (m).
Use snout-vent length for lizards and frogs.

taxon

character taxon of organism, current choices: "lizard", "frog", "sphere".

Details

Relationships come from

• Lizards: Norris (1965)

• Frogs: Tracy (1972)

• Sphere: Mitchell (1976)

Value

numeric volume (m³).

References

Mitchell JW (1976). “Heat transfer from spheres and other animal forms.” Biophysical Journal, 16(6), 561-569. ISSN 0006-3495, doi: 10.1016/S0006-3495(76)85711-6.

Norris KS (1965). “Color adaptation in desert reptiles and its thermal relationships.” In Symposium on Lizard Ecology, 162- 229. U. Missouri Press.

Tracy CR (1972). “Newton's Law: Its Application for Expressing Heat Losses from Homeotherms.” BioScience, 22(11), 656-659. ISSN 0006-3568, doi: 10.2307/1296267.

See Also

Other allometric functions: mass_from_length(), proportion_silhouette_area_shapes(), proportion_silhouette_area(), surface_area_from_length(), surface_area_from_mass(), surface_area_from_volume()

Examples

  volume_from_length(l     = 0.05,  
                     taxon = "lizard")
  volume_from_length(l     = 0.05,   
                     taxon = "frog")
  volume_from_length(l     = 0.05,   
                     taxon = "sphere")