Validation of near-infrared reflectance spectroscopy to estimate the potential intake of Eucalyptus foliage by folivorous marsupials

I. R. Wallis; W. J. Foley

doi:10.1071/ZO02027

Validation of near-infrared reflectance spectroscopy to estimate the potential intake of Eucalyptus foliage by folivorous marsupials

I. R. Wallis, W. J. Foley^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

We validated an existing model of food intake by captive common ringtail possums (Pseudocheirus peregrinus), a folivorous marsupial, by feeding foliage from 18 individual Eucalyptus polyanthemos trees and measuring dry matter intake. Near-infrared reflectance (NIR) spectra of a sample of each foliage were recorded and compared against a previously derived model relating food intake in common ringtails and NIR spectra. We found excellent agreement between the predicted and measured food intake, with the standard error of prediction being 3.6 g kg(body mass)^-0.75 day^-1. NIR spectroscopy is a suitable tool for modelling complex attributes such as potential feeding rates of mammals. This makes it theoretically possible to remotely sense critical nutritional determinants of animal habitat on a landscape scale.

Original language	English
Pages (from-to)	95-98
Number of pages	4
Journal	Australian Journal of Zoology
Volume	51
Issue number	1
DOIs	https://doi.org/10.1071/ZO02027
Publication status	Published - 2003

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abstract = "We validated an existing model of food intake by captive common ringtail possums (Pseudocheirus peregrinus), a folivorous marsupial, by feeding foliage from 18 individual Eucalyptus polyanthemos trees and measuring dry matter intake. Near-infrared reflectance (NIR) spectra of a sample of each foliage were recorded and compared against a previously derived model relating food intake in common ringtails and NIR spectra. We found excellent agreement between the predicted and measured food intake, with the standard error of prediction being 3.6 g kg(body mass)-0.75 day-1. NIR spectroscopy is a suitable tool for modelling complex attributes such as potential feeding rates of mammals. This makes it theoretically possible to remotely sense critical nutritional determinants of animal habitat on a landscape scale.",

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AB - We validated an existing model of food intake by captive common ringtail possums (Pseudocheirus peregrinus), a folivorous marsupial, by feeding foliage from 18 individual Eucalyptus polyanthemos trees and measuring dry matter intake. Near-infrared reflectance (NIR) spectra of a sample of each foliage were recorded and compared against a previously derived model relating food intake in common ringtails and NIR spectra. We found excellent agreement between the predicted and measured food intake, with the standard error of prediction being 3.6 g kg(body mass)-0.75 day-1. NIR spectroscopy is a suitable tool for modelling complex attributes such as potential feeding rates of mammals. This makes it theoretically possible to remotely sense critical nutritional determinants of animal habitat on a landscape scale.

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ER -

Validation of near-infrared reflectance spectroscopy to estimate the potential intake of Eucalyptus foliage by folivorous marsupials

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