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Don't judge habitat on its novelty: assessing the value of novel habitats for an endangered mammal in a peri-urban landscape
journal contribution
posted on 2018-07-01, 00:00 authored by Sarah Maclagan, T Coates, Euan RitchieEuan RitchieNovel ecosystems are increasingly common worldwide, particularly in areas heavily impacted by humans such as urban and peri-urban landscapes. Consequently, interest in their potential contribution to biodiversity conservation is growing, including their ability to sustain populations of threatened species. However, few studies have explored whether novel habitats can support viable populations over time and how they compare to less modified, remnant habitats. We investigated the capacity for novel habitats to support an endangered mammal, the southern brown bandicoot (Isoodon obesulus obesulus: Peramelidae), in a highly-modified landscape near Australia's second largest city, Melbourne. We compared bandicoot abundance and body condition between five novel and two remnant sites, and examined whether novel sites support residency and key demographic processes necessary for bandicoot population persistence. We found that bandicoot abundance was higher at novel than remnant sites, with the highest abundance at the novel site with the most urbanised surroundings. Female body condition was similar between novel and remnant sites. The majority of bandicoots at novel sites were resident, and breeding activity, recruitment of first-year adults, and survival of mature adults were observed at all novel sites. Our results demonstrate the potential significance of novel habitats for conserving threatened species within heavily-modified landscapes, and encourage us not to judge the quality of habitats on their novelty alone. Broadening our appreciation of the potential value of novel ecosystems could increase off-reserve species conservation opportunities, a key priority within the context of the Anthropocene and unprecedented global change and biodiversity loss.
History
Journal
Biological conservationVolume
223Pagination
11 - 18Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0006-3207Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2018, ElsevierUsage metrics
Categories
Keywords
Novel ecosystemUrban ecologyPeri-urbanLinear habitatThreatened speciesBandicootScience & TechnologyLife Sciences & BiomedicineBiodiversity ConservationEcologyEnvironmental SciencesBiodiversity & ConservationEnvironmental Sciences & EcologyBROWN BANDICOOTISOODON-OBESULUSCONSERVATIONPERAMELIDAEECOSYSTEMSBIODIVERSITYMARSUPIALIAMANAGEMENTDYNAMICSVICTORIAEcology
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