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Kakapo Brook Resource Consent Hearing 13 October, 2015 Protect and enhance braided river ecosystems Promote 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 tarapiroe Threatened with extinction - Nationally Endangered = Acutely threatened, 2 steps away from extinction, in serious decline Nests on open gravels Feeds on small fish, some inverts
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Banded Dotterel tutwhatu Threatened – nationally vulnerable to extinction Feeds on invertebrates in the wetted margins - flow variability important Often breed and feed on the on turf vegetation away from the channels
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South Island Pied Oystercatcher torea 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
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