Analysing the effects of distance, taxon and biomass on vertebrate detections using bulk-collected carrion fly iDNA

Invertebrate-derived DNA (iDNA) metabarcoding from carrion flies is a powerful, non-invasive tool that has value for assessing vertebrate diversity. However, unknowns exist around the factors that influence vertebrate detections, such as spatial limits to iDNA signals or if detections are influenced...

Full description

Bibliographic Details
Main Authors: Kristen Fernandes, Philip W. Bateman, Benjamin J. Saunders, Mark Gibberd, Michael Bunce, Kristine Bohmann, Paul Nevill
Format: Article
Language:English
Published: The Royal Society 2024-04-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/10.1098/rsos.231286
_version_ 1797215227771617280
author Kristen Fernandes
Philip W. Bateman
Benjamin J. Saunders
Mark Gibberd
Michael Bunce
Kristine Bohmann
Paul Nevill
author_facet Kristen Fernandes
Philip W. Bateman
Benjamin J. Saunders
Mark Gibberd
Michael Bunce
Kristine Bohmann
Paul Nevill
author_sort Kristen Fernandes
collection DOAJ
description Invertebrate-derived DNA (iDNA) metabarcoding from carrion flies is a powerful, non-invasive tool that has value for assessing vertebrate diversity. However, unknowns exist around the factors that influence vertebrate detections, such as spatial limits to iDNA signals or if detections are influenced by taxonomic class or estimated biomass of the vertebrates of interest. Using a bulk-collection method, we captured flies from within a zoo and along transects extending 4 km away from this location. From 920 flies, we detected 28 vertebrate species. Of the 28 detected species, we identified 9 species kept at the zoo, 8 mammals and 1 bird, but no reptiles. iDNA detections were highly geographically localized, and only a few zoo animals were detected outside the zoo setting. However, due to the low number of detections in our dataset, we found no influence of the taxonomic group or the estimated biomass of animals on their detectability. Our data suggest that iDNA detections from bulk-collected carrion flies, at least in urban settings in Australia, are predominantly determined by geographic proximity to the sampling location. This study presents an important step in understanding how iDNA techniques can be used in biodiversity monitoring.
first_indexed 2024-04-24T11:26:43Z
format Article
id doaj.art-6803e9e0711942d5be54950e2bbab9bb
institution Directory Open Access Journal
issn 2054-5703
language English
last_indexed 2024-04-24T11:26:43Z
publishDate 2024-04-01
publisher The Royal Society
record_format Article
series Royal Society Open Science
spelling doaj.art-6803e9e0711942d5be54950e2bbab9bb2024-04-10T14:08:21ZengThe Royal SocietyRoyal Society Open Science2054-57032024-04-0111410.1098/rsos.231286Analysing the effects of distance, taxon and biomass on vertebrate detections using bulk-collected carrion fly iDNAKristen Fernandes0Philip W. Bateman1Benjamin J. Saunders2Mark Gibberd3Michael Bunce4Kristine Bohmann5Paul Nevill6Trace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University , Bentley, Western Australia 6102, AustraliaBehavioural Ecology Laboratory, School of Molecular and Life Sciences, Curtin University , Bentley, Western Australia 6102, AustraliaSchool of Molecular and Life Sciences, Curtin University , Bentley, Western Australia 6102, AustraliaFood Agility CRC Ltd , Sydney, New South Wales 2000, AustraliaTrace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University , Bentley, Western Australia 6102, AustraliaSection for Molecular Ecology and Evolution, Faculty of Health and Medical Sciences, Globe Institute, University of Copenhagen , Copenhagen, DenmarkMBioMe - Mine Site Biomonitoring using eDNA Research Group, Trace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University , Bentley, Western Australia 6102, AustraliaInvertebrate-derived DNA (iDNA) metabarcoding from carrion flies is a powerful, non-invasive tool that has value for assessing vertebrate diversity. However, unknowns exist around the factors that influence vertebrate detections, such as spatial limits to iDNA signals or if detections are influenced by taxonomic class or estimated biomass of the vertebrates of interest. Using a bulk-collection method, we captured flies from within a zoo and along transects extending 4 km away from this location. From 920 flies, we detected 28 vertebrate species. Of the 28 detected species, we identified 9 species kept at the zoo, 8 mammals and 1 bird, but no reptiles. iDNA detections were highly geographically localized, and only a few zoo animals were detected outside the zoo setting. However, due to the low number of detections in our dataset, we found no influence of the taxonomic group or the estimated biomass of animals on their detectability. Our data suggest that iDNA detections from bulk-collected carrion flies, at least in urban settings in Australia, are predominantly determined by geographic proximity to the sampling location. This study presents an important step in understanding how iDNA techniques can be used in biodiversity monitoring.https://royalsocietypublishing.org/doi/10.1098/rsos.231286invertebrate-derived DNAmetabarcodingterrestrial vertebratebiomonitoring
spellingShingle Kristen Fernandes
Philip W. Bateman
Benjamin J. Saunders
Mark Gibberd
Michael Bunce
Kristine Bohmann
Paul Nevill
Analysing the effects of distance, taxon and biomass on vertebrate detections using bulk-collected carrion fly iDNA
Royal Society Open Science
invertebrate-derived DNA
metabarcoding
terrestrial vertebrate
biomonitoring
title Analysing the effects of distance, taxon and biomass on vertebrate detections using bulk-collected carrion fly iDNA
title_full Analysing the effects of distance, taxon and biomass on vertebrate detections using bulk-collected carrion fly iDNA
title_fullStr Analysing the effects of distance, taxon and biomass on vertebrate detections using bulk-collected carrion fly iDNA
title_full_unstemmed Analysing the effects of distance, taxon and biomass on vertebrate detections using bulk-collected carrion fly iDNA
title_short Analysing the effects of distance, taxon and biomass on vertebrate detections using bulk-collected carrion fly iDNA
title_sort analysing the effects of distance taxon and biomass on vertebrate detections using bulk collected carrion fly idna
topic invertebrate-derived DNA
metabarcoding
terrestrial vertebrate
biomonitoring
url https://royalsocietypublishing.org/doi/10.1098/rsos.231286
work_keys_str_mv AT kristenfernandes analysingtheeffectsofdistancetaxonandbiomassonvertebratedetectionsusingbulkcollectedcarrionflyidna
AT philipwbateman analysingtheeffectsofdistancetaxonandbiomassonvertebratedetectionsusingbulkcollectedcarrionflyidna
AT benjaminjsaunders analysingtheeffectsofdistancetaxonandbiomassonvertebratedetectionsusingbulkcollectedcarrionflyidna
AT markgibberd analysingtheeffectsofdistancetaxonandbiomassonvertebratedetectionsusingbulkcollectedcarrionflyidna
AT michaelbunce analysingtheeffectsofdistancetaxonandbiomassonvertebratedetectionsusingbulkcollectedcarrionflyidna
AT kristinebohmann analysingtheeffectsofdistancetaxonandbiomassonvertebratedetectionsusingbulkcollectedcarrionflyidna
AT paulnevill analysingtheeffectsofdistancetaxonandbiomassonvertebratedetectionsusingbulkcollectedcarrionflyidna