Advancing alpine weather/climate information for biodiversity protection & recreationist utility & safety

ABT continues with developing its Encounter Solutions “Celium” based system of remote alpine climate/weather recording/data acquisition.

Added to existing real time temperature obtained from a network of Upper Wilkin, Crucible and Nth Siberia HUBs/Repeater HUBs and Nodes, are real time ES Celium based snow depth and rainfall recording platforms.

Ultrasonic snow depth measuring instrumentation has been deployed in the Castalia Cirque (1200 metres) and rain gauge instrumentation at Crucible Basin (1200 metres). Further similar instrumentation is to be deployed in the Nth Siberia Cirque.

Ultrasonic snow depth kit installation, in action with Anthony, Bill and Scott.
Upper Wilkin instrumentation installation with Pilot Bill Day and ABT’s Scott Gillam.


Expansion of ABT’s ES Celium based remote alpine climate/weather data recording to include snow depth and rainfall, has been made possible with funding from the Tupiki Trust, the helicopter services of Bill Day (Seawork’s) and a materials donation from Templeton Engineering.

ABT’s expanding remote weather/climate monitoring system will provide a database projected forward in determining the impacts of changing weather patterns/climate (rainfall, snowfall and temperature) locally, on the threatened species habitat and influence on the changing dynamics of protected species and invasive predators within the alpine environment. This may include food source, winter snow cover protection, extended temporal and spatial activity of predators (i.e. rat moving to higher levels in the alpine, stoat extended time active, and more mice).

Alpine stoat (Mustela erminea) activity within the Castalia/Upper Lucidus Basin (Red – Trap triggered by stoat capture) rock wren habitat (end June 2023). Image Aspiring Biodiversity Trust.


ABT’s expanding remote weather/climate monitoring system no less importantly contributes to the safety of ABT field programme workers, and the public engaging in alpine activities of the north Mt Aspiring National Park: trekking, ski touring, pack rafting, climbing etc.

Data of ABT’s current and expanding remote weather/climate monitoring system is available to the public via ABT’s Real-Time weather/climate page.

The Mountain Safety Council’s Plan-My-Walk has a link to the ABT RealTime page, and the expanding data is also available to the Aspiring Avalanche Advisory.

Acknowledgements

With Thanks to: Tupiki Trust, Bill Day of Seaworks and Templeton Engineering.

ABT Rain gauge with Celium Hub (behind), Siberia Valley

Fig 1. Example rainfall output data since initial installation

This innovation in partnership with Aspiring Biodiversity Trust and Encounter Solutions is contributing greater knowledge and understanding (over time), to better inform adaptive conservation management going forward for endangered species protection and restoration within the Makarora and Wilkin catchments – from ridge to river. In particular, for significant remnant populations of endangered Pīwauwau/ Rock wren and South Island Whio/ Blue duck.

ABT Trail camera image: Alpine stoat active within Upper Lucidus/Castalia basin rock wren and whio habitat with ZIP Autolure and trap entrance to the right.

Confirmed presence of a rock wren colony….

Rock wren of the Wilkin Valley

The Aspiring Biodiversity Trust are pleased to report the confirmed presence of rock wren at the north branch of the Wilkin River following the undertaking and setting up of a recent (Jan 2018) transect monitoring survey.

rock wren - Rachel Hufton
Rock wren (adult female)

Rock wren Xenicus gilviventris is the only true alpine New Zealand bird species and is currently classed as globally endangered under the International Union for the Conservation of Nature (IUCN). Peter Child’s (1980) work was the first comprehensive bird survey of Mt Aspiring National Park for rock wren.

Rachel Hufton rock wren survey
Rachel Hufton surveying rock wren habitat at Lake Castalia, north source of the Wilkin River.

The main threat to this species is predation from invasive mammals such as stoats and rats now known to be present within alpine environments. The results of the survey will help inform and guide existing and future conservation management for rock wren. Monitoring transects will also be repeated in subsequent years to allow more informed decisions to be made in relation to this indigenous alpine specialist.

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