Extensive Tracking of Nomadic Waterbird Movements Reveals an Inland Flyway

ABSTRACT Waterbirds are highly mobile and have the ability to respond to environmental conditions opportunistically at multiple scales. Mobility is particularly crucial for aggregate‐nesting species dependent on breeding habitat in arid and semi‐arid wetlands, which can be ephemeral and unpredictabl...

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Main Authors: Heather M. McGinness, Micha V. Jackson, Luke Lloyd‐Jones, Freya Robinson, Art Langston, Louis G. O'Neill, Shoshana Rapley, Melissa Piper, Micah Davies, Jessica Hodgson, John M. Martin, Richard Kingsford, Kate Brandis, Veronica Doerr, Ralph Mac Nally
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:Ecology and Evolution
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Online Access:https://doi.org/10.1002/ece3.70668
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author Heather M. McGinness
Micha V. Jackson
Luke Lloyd‐Jones
Freya Robinson
Art Langston
Louis G. O'Neill
Shoshana Rapley
Melissa Piper
Micah Davies
Jessica Hodgson
John M. Martin
Richard Kingsford
Kate Brandis
Veronica Doerr
Ralph Mac Nally
author_facet Heather M. McGinness
Micha V. Jackson
Luke Lloyd‐Jones
Freya Robinson
Art Langston
Louis G. O'Neill
Shoshana Rapley
Melissa Piper
Micah Davies
Jessica Hodgson
John M. Martin
Richard Kingsford
Kate Brandis
Veronica Doerr
Ralph Mac Nally
author_sort Heather M. McGinness
collection DOAJ
description ABSTRACT Waterbirds are highly mobile and have the ability to respond to environmental conditions opportunistically at multiple scales. Mobility is particularly crucial for aggregate‐nesting species dependent on breeding habitat in arid and semi‐arid wetlands, which can be ephemeral and unpredictable. We aimed to address knowledge gaps about movement routes for aggregate‐nesting nomadic waterbird species by tracking them in numbers sufficient to make robust assessment of their movement patterns. We hypothesised that analysis of long‐distance movements would identify common routes with consistent environmental features that would be useful as context for conservation management. We used GPS satellite telemetry to track the movements of 73 straw‐necked ibis (Threskiornis spinicollis) and 42 royal spoonbills (Platalea regia) over 7 years (2016‐2023). We used these data to identify long‐distance movements and to demarcate and characterise movement routes. We identified common routes used by both species, including a ‘flyway’ over 2000 km long, spanning Australia's Murray–Darling Basin from the south‐west to the north‐east. This flyway connects important breeding sites and is characterised by flat, open/unforested areas with low elevations of < 350 m and mid to high rainfall. The flyway corresponds to an area west of Australia's Great Dividing Range, which appears to act as a low‐permeability barrier to the movement of both species. Identification of an inland flyway for waterbirds in Australia provides important context for multi‐jurisdictional cooperation and strategic management. Where resources are limited, water and wetland management efforts (e.g., environmental watering) should be preferentially located within this route. Similarly, targeting threat mitigation within common movement routes may have disproportionate importance for long‐term population viability. Given the widespread distribution of similar species globally, there are likely to be other flyways worthy of scientific and conservation management attention that could be identified using our approach.
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spelling doaj-art-fdc9157e516d47aebab3d8ac1311dbcf2024-12-27T11:24:39ZengWileyEcology and Evolution2045-77582024-12-011412n/an/a10.1002/ece3.70668Extensive Tracking of Nomadic Waterbird Movements Reveals an Inland FlywayHeather M. McGinness0Micha V. Jackson1Luke Lloyd‐Jones2Freya Robinson3Art Langston4Louis G. O'Neill5Shoshana Rapley6Melissa Piper7Micah Davies8Jessica Hodgson9John M. Martin10Richard Kingsford11Kate Brandis12Veronica Doerr13Ralph Mac Nally14CSIRO Environment Canberra Australian Capital Territory AustraliaCSIRO Environment Canberra Australian Capital Territory AustraliaCSIRO Data61 Brisbane Queensland AustraliaCSIRO Health and Biosecurity Canberra Australian Capital Territory AustraliaCSIRO Environment Canberra Australian Capital Territory AustraliaCSIRO Environment Canberra Australian Capital Territory AustraliaCSIRO Environment Canberra Australian Capital Territory AustraliaCSIRO Agriculture Canberra Australian Capital Territory AustraliaCSIRO Environment Canberra Australian Capital Territory AustraliaCSIRO Environment Canberra Australian Capital Territory AustraliaRoyal Botanic Gardens Sydney New South Wales AustraliaUniversity of New South Wales Sydney New South Wales AustraliaUniversity of New South Wales Sydney New South Wales AustraliaCSIRO Environment Canberra Australian Capital Territory AustraliaUniversity of Canberra Canberra Australian Capital Territory AustraliaABSTRACT Waterbirds are highly mobile and have the ability to respond to environmental conditions opportunistically at multiple scales. Mobility is particularly crucial for aggregate‐nesting species dependent on breeding habitat in arid and semi‐arid wetlands, which can be ephemeral and unpredictable. We aimed to address knowledge gaps about movement routes for aggregate‐nesting nomadic waterbird species by tracking them in numbers sufficient to make robust assessment of their movement patterns. We hypothesised that analysis of long‐distance movements would identify common routes with consistent environmental features that would be useful as context for conservation management. We used GPS satellite telemetry to track the movements of 73 straw‐necked ibis (Threskiornis spinicollis) and 42 royal spoonbills (Platalea regia) over 7 years (2016‐2023). We used these data to identify long‐distance movements and to demarcate and characterise movement routes. We identified common routes used by both species, including a ‘flyway’ over 2000 km long, spanning Australia's Murray–Darling Basin from the south‐west to the north‐east. This flyway connects important breeding sites and is characterised by flat, open/unforested areas with low elevations of < 350 m and mid to high rainfall. The flyway corresponds to an area west of Australia's Great Dividing Range, which appears to act as a low‐permeability barrier to the movement of both species. Identification of an inland flyway for waterbirds in Australia provides important context for multi‐jurisdictional cooperation and strategic management. Where resources are limited, water and wetland management efforts (e.g., environmental watering) should be preferentially located within this route. Similarly, targeting threat mitigation within common movement routes may have disproportionate importance for long‐term population viability. Given the widespread distribution of similar species globally, there are likely to be other flyways worthy of scientific and conservation management attention that could be identified using our approach.https://doi.org/10.1002/ece3.70668environmental watermovement ecologyMurray–Darling basinroyal spoonbillsatellite telemetrystraw‐necked ibis
spellingShingle Heather M. McGinness
Micha V. Jackson
Luke Lloyd‐Jones
Freya Robinson
Art Langston
Louis G. O'Neill
Shoshana Rapley
Melissa Piper
Micah Davies
Jessica Hodgson
John M. Martin
Richard Kingsford
Kate Brandis
Veronica Doerr
Ralph Mac Nally
Extensive Tracking of Nomadic Waterbird Movements Reveals an Inland Flyway
Ecology and Evolution
environmental water
movement ecology
Murray–Darling basin
royal spoonbill
satellite telemetry
straw‐necked ibis
title Extensive Tracking of Nomadic Waterbird Movements Reveals an Inland Flyway
title_full Extensive Tracking of Nomadic Waterbird Movements Reveals an Inland Flyway
title_fullStr Extensive Tracking of Nomadic Waterbird Movements Reveals an Inland Flyway
title_full_unstemmed Extensive Tracking of Nomadic Waterbird Movements Reveals an Inland Flyway
title_short Extensive Tracking of Nomadic Waterbird Movements Reveals an Inland Flyway
title_sort extensive tracking of nomadic waterbird movements reveals an inland flyway
topic environmental water
movement ecology
Murray–Darling basin
royal spoonbill
satellite telemetry
straw‐necked ibis
url https://doi.org/10.1002/ece3.70668
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