pseudo.seal

THIS IS THE NEW pseudo.seal FUNCTION THAT ALLOWS 1) FAT CONTENT
TO BE INCLUDED IN THE GENERATED SEALS AND 2) SOME SPECIES TO BE
TRULY ZERO (THAT IS,"ZERO SPECIES" DO NOT HAVE TO BE INCLUDED IN THE
"NOISE" )
NOTE: IT IS ASSUMED THAT SUM(DIET) IS 1-NOISE
THIS IS THE NEW pseudo.seal FUNCTION THAT ALLOWS 1) FAT CONTENT
TO BE INCLUDED IN THE GENERATED SEALS AND 2) SOME SPECIES TO BE
TRULY ZERO (THAT IS,"ZERO SPECIES" DO NOT HAVE TO BE INCLUDED IN THE
"NOISE" )
NOTE: IT IS ASSUMED THAT SUM(DIET) IS 1-NOISE

internal

Accurate estimates of the diets of predators are required
in many areas of ecology, but for many species current methods are
imprecise, limited to the last meal, and often biased. The diversity
of fatty acids and their patterns in organisms, coupled with the
narrow limitations on their biosynthesis, properties of digestion in
monogastric animals, and the prevalence of large storage reservoirs of
lipid in many predators, led to the development of quantitative
fatty acid signature analysis (QFASA) to study predator diets.

Connie Stewart

QFASA

Quantitative Fatty Acid Signature Analysis

Sara Iverson

Chris Field

Don Bowen

Wade Blanchard

Shelley Lang

Justin Kamerman

Hongchang Bao

Holly Steeves

Jennifer McNichol

Tyler Rideout

pseudo.seal function

<dl><dt>prey.sim</dt>
<dd>OUTPUT OF split.prey</dd>
<dt>diet</dt>
<dd>DIET COMPOSITION VECTOR (NOTE: THIS VECTOR SHOULD SUM TO 1-NOISE. THE NOISE WILL BE ADDED TO THE diet VECTOR.)</dd>
<dt>noise</dt>
<dd>AMOUNT OF NOISE</dd>
<dt>nprey</dt>
<dd>nprey TOTAL NUMBER OF PREY TO BE SAMPLED</dd>
<dt>cal</dt>
<dd>CALIBRATION FACTORS</dd>
<dt>fat.cont</dt>
<dd>VECTOR OF FAT CONTENT OF LENGTH=I (# OF SPECIES)</dd>
<dt>specify.noise</dt>
<dd>A BOOLEAN VECTOR WITH TRUES DENOTING SPECIES TO USE IN NOISE.</dd></dl>

Arguments

Generate a single pseudo predator FA signature — pseudo.seal

<dl>

<dt>prey.sim</dt>
<dd>OUTPUT OF split.prey</dd>


<dt>diet</dt>
<dd>DIET COMPOSITION VECTOR (NOTE: THIS VECTOR SHOULD SUM TO 1-NOISE. THE NOISE WILL BE ADDED TO THE diet VECTOR.)</dd>


<dt>noise</dt>
<dd>AMOUNT OF NOISE</dd>


<dt>nprey</dt>
<dd>nprey TOTAL NUMBER OF PREY TO BE SAMPLED</dd>


<dt>cal</dt>
<dd>CALIBRATION FACTORS</dd>


<dt>fat.cont</dt>
<dd>VECTOR OF FAT CONTENT OF LENGTH=I (# OF SPECIES)</dd>


<dt>specify.noise</dt>
<dd>A BOOLEAN VECTOR WITH TRUES DENOTING SPECIES TO USE IN NOISE.</dd>

</dl>

Generate a single pseudo predator FA signature

pseudo.seal: Generate a single pseudo predator FA signature

Description

Usage

Value

Arguments