Dropping Hints: Estimating the diets of livestock in rangelands using DNA metabarcoding of faeces

The introduction of domesticated animals into new environments can lead to considerable ecological disruption, and it can be difficult to predict their impact on the new ecosystem. In this study, we use faecal metabarcoding to characterize the diets of three ruminant taxa in the rangelands of south-...

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Main Authors: Timothy Lee, Yohannes Alemseged, Andrew Mitchell
Format: Article
Language:English
Published: Pensoft Publishers 2018-03-01
Series:Metabarcoding and Metagenomics
Subjects:
Online Access:https://mbmg.pensoft.net/article/22467/
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author Timothy Lee
Yohannes Alemseged
Andrew Mitchell
author_facet Timothy Lee
Yohannes Alemseged
Andrew Mitchell
author_sort Timothy Lee
collection DOAJ
description The introduction of domesticated animals into new environments can lead to considerable ecological disruption, and it can be difficult to predict their impact on the new ecosystem. In this study, we use faecal metabarcoding to characterize the diets of three ruminant taxa in the rangelands of south-western New South Wales, Australia. Our study organisms included goats (Capra aegagrus hircus) and two breeds of sheep (Ovis aries): Merinos, which have been present in Australia for over two hundred years, and Dorpers, which were introduced in the 1990s. We used High-Throughput Sequencing methods to sequence the rbcL and ITS2 genes of plants in the faecal samples, and identified the samples using the GenBank and BOLD online databases, as well as a reference collection of sequences from plants collected in the study area. We found that the diets of all three taxa were dominated by the family Malvaceae, and that the Dorper diet was more diverse than the Merino diet at both the family and the species level. We conclude that Dorpers, like Merinos, are potentially a threat to some vulnerable species in the rangelands of New South Wales.
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spelling doaj.art-7cfc1ae8ed6e4966ab69e667ce610af92022-12-21T19:06:38ZengPensoft PublishersMetabarcoding and Metagenomics2534-97082018-03-01211710.3897/mbmg.2.2246722467Dropping Hints: Estimating the diets of livestock in rangelands using DNA metabarcoding of faecesTimothy Lee0Yohannes Alemseged1Andrew Mitchell2Australian MuseumNSW Department of Primary IndustriesAustralian MuseumThe introduction of domesticated animals into new environments can lead to considerable ecological disruption, and it can be difficult to predict their impact on the new ecosystem. In this study, we use faecal metabarcoding to characterize the diets of three ruminant taxa in the rangelands of south-western New South Wales, Australia. Our study organisms included goats (Capra aegagrus hircus) and two breeds of sheep (Ovis aries): Merinos, which have been present in Australia for over two hundred years, and Dorpers, which were introduced in the 1990s. We used High-Throughput Sequencing methods to sequence the rbcL and ITS2 genes of plants in the faecal samples, and identified the samples using the GenBank and BOLD online databases, as well as a reference collection of sequences from plants collected in the study area. We found that the diets of all three taxa were dominated by the family Malvaceae, and that the Dorper diet was more diverse than the Merino diet at both the family and the species level. We conclude that Dorpers, like Merinos, are potentially a threat to some vulnerable species in the rangelands of New South Wales.https://mbmg.pensoft.net/article/22467/Metabarcoding<i>rbcL</i>ITS2<i>Ovis aries
spellingShingle Timothy Lee
Yohannes Alemseged
Andrew Mitchell
Dropping Hints: Estimating the diets of livestock in rangelands using DNA metabarcoding of faeces
Metabarcoding and Metagenomics
Metabarcoding
<i>rbcL</i>
ITS2
<i>Ovis aries
title Dropping Hints: Estimating the diets of livestock in rangelands using DNA metabarcoding of faeces
title_full Dropping Hints: Estimating the diets of livestock in rangelands using DNA metabarcoding of faeces
title_fullStr Dropping Hints: Estimating the diets of livestock in rangelands using DNA metabarcoding of faeces
title_full_unstemmed Dropping Hints: Estimating the diets of livestock in rangelands using DNA metabarcoding of faeces
title_short Dropping Hints: Estimating the diets of livestock in rangelands using DNA metabarcoding of faeces
title_sort dropping hints estimating the diets of livestock in rangelands using dna metabarcoding of faeces
topic Metabarcoding
<i>rbcL</i>
ITS2
<i>Ovis aries
url https://mbmg.pensoft.net/article/22467/
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AT andrewmitchell droppinghintsestimatingthedietsoflivestockinrangelandsusingdnametabarcodingoffaeces