kakapo brook resource consent hearing 13 october, 2015 protect and enhance braided river ecosystems...
TRANSCRIPT
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Kakapo Brook Resource Consent Hearing 13 October, 2015
Protect and enhance braided river ecosystemsPromote cooperation between stakeholders Initial focus on the native birds that breed on
Canterbury’s braided rivers
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Conway River -downstream from Inland Road Bridge
- Single small channel, easily crossed in the Spring? Similar to Kakapo
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Banded Dotterel nest
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Black-Fronted Tern Nest
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Banded Dotterel on the nest
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Black-Fronted Tern tarapiroeThreatened with extinction - Nationally Endangered = Acutely threatened, 2 steps away from extinction, in serious declineNests on open gravelsFeeds on small fish, some inverts
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Banded Dotterel tutwhatu
Threatened – nationally vulnerable to extinctionFeeds on invertebrates in the wetted margins - flow variability
importantOften breed and feed on the on turf
vegetation away from the channels
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South Island Pied Oystercatchertorea
• At risk of extinction – declining• Feeds on and off river • Nests on and off river
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Reduced Flows?• Algal risk• Possible reduced in-stream food production
(68% Invertebrates, 90% Fish per Jellyman)• Possible reduced flow variability resulting in
less wetted margin for food production
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Canterbury RPS Significance• Per Sanders evidence :
“a. It supports four indigenous bird species that are threatened, at risk, or uncommon, nationally or within the relevant ecological district (Criterion 4);
b. It contains an association of indigenous species, namely the various river and wetland birds just mentioned, that occurs within an originally rare ecosystem, that is, a braided river (Criterion 6). “
• “More bird surveys would add confidence about the number and location of birds potentially affected”
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• RMA Section 6: protection of a) natural character, c)significant habitats of indigenous fauna
• CRPS Significance - meets 2 of the criteria• Surveys usually done October or November, possible under-
estimation • Open flat habitat suitable for river-birds• Reasonable numbers per hectare – all are ‘significant’ • Flat-lining affects food production in important breeding season
(Sept – Jan):- variability of the wetted margin is lost, - possible decreased invertebrate production, - possible small decrease in fish, - further stress on ‘at risk’ populations of river-birds
Summary