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Wombat burrows are hotspots for small vertebrates in a landscape subject to gigafire.

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Title: Wombat burrows are hotspots for small vertebrates in a landscape subject to gigafire.
Authors: Linley, Grant D, Geary, William L, Jolly, Chris J, Spencer, Emma E, Ashman, Kita R, Michael, Damian R, Westaway, Dylan M, Nimmo, Dale G
Source: Journal of Mammalogy; Aug2024, Vol. 105 Issue 4, p752-764, 13p
Subject Terms: RESOURCE availability (Ecology), ECOLOGICAL disturbances, FOREST fires, SPECIES diversity, ECOLOGICAL engineering
Abstract: Ecosystem engineers modify their environment and influence the availability of resources for other organisms. Burrowing species, a subset of allogenic engineers, are gaining recognition as ecological facilitators. Burrows created by these species provide habitat for a diverse array of other organisms. Following disturbances, burrows could also serve as ecological refuges, thereby enhancing ecological resistance to disturbance events. We explored the ecological role of Common Wombat (Vombatus ursinus) burrows using camera traps in forests of southeastern Australia. We compared animal activity at paired sites with and without burrows, from the same fire severity class and habitat. We examined how animal activity at Common Wombat burrows was affected by the 2019–20 Black Summer bushfires in Australia. We predicted that burrows would serve as hotspots for animal activity and as refuges in burned areas. The activity of several species including Bush Rat (Rattus fuscipes), Agile Antechinus (Antechinus agilis), Lace Monitor (Varanus varius), Painted Button-quail (Turnix varius), and Grey Shrike-thrush (Colluricincla harmonica) increased at sites where Common Wombat burrows were present, while other species avoided burrows. Species that were more active at burrows tended to be smaller mammal and bird species that are vulnerable to predation, whereas species that avoided burrows tended to be larger mammals that might compete with Common Wombat for resources. Species composition differed between sites with and without burrows, and burrow sites had higher native mammal species richness. The association of several species with burrows persisted or strengthened in areas that burned during the 2019–20 Black Summer bushfires, suggesting that Common Wombat burrows may act as ecological refuges for animals following severe wildfire. Our findings have relevance for understanding how animals survive, persist, and recover following extreme wildfire events. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Mammalogy is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Wombat burrows are hotspots for small vertebrates in a landscape subject to gigafire.
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  Data: Journal of Mammalogy; Aug2024, Vol. 105 Issue 4, p752-764, 13p
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  Data: <searchLink fieldCode="DE" term="%22RESOURCE+availability+%28Ecology%29%22">RESOURCE availability (Ecology)</searchLink><br /><searchLink fieldCode="DE" term="%22ECOLOGICAL+disturbances%22">ECOLOGICAL disturbances</searchLink><br /><searchLink fieldCode="DE" term="%22FOREST+fires%22">FOREST fires</searchLink><br /><searchLink fieldCode="DE" term="%22SPECIES+diversity%22">SPECIES diversity</searchLink><br /><searchLink fieldCode="DE" term="%22ECOLOGICAL+engineering%22">ECOLOGICAL engineering</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Ecosystem engineers modify their environment and influence the availability of resources for other organisms. Burrowing species, a subset of allogenic engineers, are gaining recognition as ecological facilitators. Burrows created by these species provide habitat for a diverse array of other organisms. Following disturbances, burrows could also serve as ecological refuges, thereby enhancing ecological resistance to disturbance events. We explored the ecological role of Common Wombat (Vombatus ursinus) burrows using camera traps in forests of southeastern Australia. We compared animal activity at paired sites with and without burrows, from the same fire severity class and habitat. We examined how animal activity at Common Wombat burrows was affected by the 2019–20 Black Summer bushfires in Australia. We predicted that burrows would serve as hotspots for animal activity and as refuges in burned areas. The activity of several species including Bush Rat (Rattus fuscipes), Agile Antechinus (Antechinus agilis), Lace Monitor (Varanus varius), Painted Button-quail (Turnix varius), and Grey Shrike-thrush (Colluricincla harmonica) increased at sites where Common Wombat burrows were present, while other species avoided burrows. Species that were more active at burrows tended to be smaller mammal and bird species that are vulnerable to predation, whereas species that avoided burrows tended to be larger mammals that might compete with Common Wombat for resources. Species composition differed between sites with and without burrows, and burrow sites had higher native mammal species richness. The association of several species with burrows persisted or strengthened in areas that burned during the 2019–20 Black Summer bushfires, suggesting that Common Wombat burrows may act as ecological refuges for animals following severe wildfire. Our findings have relevance for understanding how animals survive, persist, and recover following extreme wildfire events. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Mammalogy is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1093/jmammal/gyae034
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        Text: English
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        PageCount: 13
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        Type: general
      – SubjectFull: ECOLOGICAL disturbances
        Type: general
      – SubjectFull: FOREST fires
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      – SubjectFull: SPECIES diversity
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      – SubjectFull: ECOLOGICAL engineering
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              Text: Aug2024
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