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.

Updating Whio/ blue duck records for the upper river catchments of the Makarora

One of ABT’s core purpose is the collation and updating of threatened species records within the Makarora Catchment to help facilitate and inform appropriate application of invasive predator control.

ABT have been updating records for whio/ blue duck Hymenolaimus malacorhynchos to help ascertain the current population status of this ancient endemic waterfowl species within the upper reaches of the Makarora Catchment. No formal inventory has been completed for this species since the work of the late Peter Child during 1970’s/1980’s.

To date a specialist contractor Paul van Klink and his protected species survey dog (Hoki) has been commissioned to undertake walkover surveys for the upper Wilkin, the Siberia and the Young Valley. Further localities are to be undertaken within the catchment.

Whio surveyor with protected species survey dog in the North Wilkin Valley

From the results of these walkover surveys and the addition of recent incidental records it is promising to see that there remains a remnant population. Numbers are low and in some cases are limited to just male individuals, a high prevalence of unpaired males on rivers without predator control is often common as nesting females are more vulnerable to mammalian predation. However, evidence of breeding success has been recorded with observations of pair bonds and fledgling birds.

Adult male whio

This valuable survey work continues to expand for the region with the future aim of restoring viable, sustainable populations of whio/ blue duck within the upper river catchments of the Makarora and Wilkin for future generations.

Downstream of Lake Lucidus, North branch of the Wilkin with Hoki (whio survey dog).

Whio survey dog in action (Hoki).

Reference

Child P, (1981). Birdlife of Mount Aspiring National Park. Scientific Services No.4. Department of Lands and Survey. Head Office, Wellington, New Zealand.

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