Auckland RENH Kaipatiki Creek Trial - Umbrella Project's Notícias

18 de novembro de 2019

Tradescantia monitoring views

We have not defined specific monitoring views as there is too much to be covered, but can provide some matching shots as they can be produced or emerge, and will be contained in some observations, eg
this one, near the roadside in Zone Cc, where Tradescantia was retained as mulch, supplemented by more from the streambanks below

Publicado em 18 de novembro de 2019, 07:56 PM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

11 de novembro de 2019

Growing in Tradescantia

Here are some of the plants found growing in Tradescantia and observed before, during or after release during the Trial so far.

They include
native seedlings and sporelings, native ferns, native plants, weeds, and weed seedlings.

or view observations of all kinds of plants found growing in Tradescantia and observed before, during or after release in Zone Bb, in Zone Bc, in Zone Bd, in Zone Ca, in Zone Cb, in Zone Cc, in Zone Da, in Zone Db, in Zone Ea, in Zone Eb, in Zone Fa, in Zone Fb

Publicado em 11 de novembro de 2019, 11:04 PM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

06 de novembro de 2019

"How do you control Tradescantia in bush?"

This is our (slightly edited here) answer to a question from an iNat member, posted here for easy reference in answering similar queries.

Eradication of Tradescantia from an area of forest is based on best times to access it safely and without damaging the native vegetation or trampling seedlings and sporelings, especially on unstable streambank with lots of run off from steep banks above. I use strategy and technique developed over thirty years, and am currently assessing modifications to minimise moisture loss.

Tradescantia is shallowly rooted, and with gentle teasing leaves the ground completely, unless layered under sedimentary deposits as on the edges of the Kaipatiki Creek.

The material is placed in piles close enough to provide continued habitat and moisture retention, monitoring and turning or scooping regrowth from the edges of the piles ( eg monthly at first if wet, then 3 monthly) then amalagamating the partially-decomposed piles - eventually removing the last shreds of stem which remain live for a long time - so there are fewer piles to monitor and turn.

Seedlings arise most abundantly on the edges of these piles, where humus is created and moisture retained.

Skinks, earthworms, and other invertebrates abound under the piles, so they have to be treated with consideration, but as seedlings and sporelings grow in the released area, and adjacent low canopy increases, the scant remains of the decomposed piles can be removed entirely in a small hand-held bag....to be added to an active compost pile elsewhere.

As you practice it you get to know the best use of time, ie when to stop and get every strand, and when any broken or missed strands will be more quickly and easily picked up on next visit. Such regrowth is often surprisingly loosely rooted, and can even be uplifted entire by grasping just the stem tip...helpful when the base of the stem is hidden amongst dense understorey.

The key is ongoing care for a limited site, with close observation and appreciation of the whole complex ecology - or as much of it as can be comprehended. The pleasure of seeing the regeneration, including each individual seedling or sporeling, and taking care to leave these each time with adequate shade and shelter for their ongoing development, is the motivation for the ongoing monitoring which takes care of the regrowth.

First exploration may reveal ferns and native trees up to 50cm H hidden in the tradescantia, so requires good use of eyes and fingers - not rakes, as I have seen rakes or careless weeding pull out hundreds of native plants, eg on one occasion in kauri forest, dozens of nikau 30cm H, and seedling kauri, which were already thriving in the Tradescantia, worth a thousand planted trees, and were left lying in a heap beside the path!

Tradescantia is often a treasure trove of seedlings and sporelings, and if it contains none it often creates ideal conditions for them with ongoing monitoring, removed enough Tradescantia to allow their development, while retaining enough of it to maintain soil moisture until alternate ground cover and/or canopy are achieved for that particular spot.

Publicado em 06 de novembro de 2019, 09:22 PM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

05 de novembro de 2019

Update on Tradescantia control

Perhaps due to the dry conditions which continue here, perhaps partly due to the amount of dry treefern litter in them, even on the shaded lower streambanks the Tradescantia piles have been considerably reduced, and many are now light enough to pick up easily - suggesting some of the Tradescantia has dried rather than rotted.

There has been very little regrowth on stems left buried under leaf litter or in sedimentary banks other than those within the streambed itself.

Follow-up removal has been done in some areas that are well-shaded, but there has been a surprising amount of light under the canopy on recent sunny days.

For that reason, despite the unexpected opportunity to eradicate Tradescantia from these streambanks quickly due to the current degree of its control and the dry conditions, any further removal of Tradescantia will be considered carefully in conjunction with observed local soil moisture and the development of native vegetation either as ground cover or as canopy.

There has already been significant development of fern sporelings and adults along the streamside, but much ground remains exposed to light at present.

Tree privet seedlings continue to arise prolifically throughout the weeded areas.

Publicado em 05 de novembro de 2019, 12:31 AM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

03 de novembro de 2019

Tradescantia control

The conditions along the roadside remain very dry, and there has been no observable regrowth from the piled material along the roadside margin...in fact it continues to shrink. The undisturbed Tradescantia remains healthy near the roadside but has not observably increased.

Streamside banks released from Tradescantia remain mostly Tradescantia-free, with only the expected emergence of occasional strands incompletely uplifted in the release.

For this reason, removal by successive weeding operations is the method we have found most efficient, and one which is rewarded by the ongoing observation of the development of bot pre-existing and new native vegetation.

On these streambanks, both at water's edge and some metres up the clay bank, we are so far seeing mainly fern sporelings emerging in the cleared areas.

We have been offered the services for a few hours one day in November of some volunteers as part of the Kaipatiki Project, to wheelbarrow bales of Tradescantia from the piles along the opposite streamside, where... some piles made in the release and exploration of underlying vegetation were of necessity, due to limitations of space and volume of Tradescantia, made too large to turn (up to 2m D, over a metre high), and wetter conditions will result in faster regrowth....but, assisted no doubt by a relatively dry winter following a very dry summer and autumn, are reducing in size at a rate which will probably enable them all to be turned by the end of summer, should ongoing funding permit continuation of this Trial. [The volunteer assistance mentioned above will not take place due to conflicts of schedule].

Seedlings have recently begun to appear in the released ground. The vast majority of them appear to be Tree privet, but there are also large numbers of Coprosma, probably robusta , and Coprosma probably grandifolia.

We look forward to making a closer assessment of numbers and species of seedlings, and removing the weed seedlings, at a later date which will allow for the natural attrition of many, giving a better idea of the likely results of wide-scale removal of Tradescantia either with or without follow up weed control.

We have been particularly interested in the number and type of earthworms observed in and under all Tradescantia piles, their contribution to soil sonditions in the dry infertile roadside area, and their potential to enhance mass Tradescantia composting. We have recently been shown native earthworms being farmed in captivity as food for kiwi (to whom tiger worms are poisonous), and hope to learn to identify these native worms in situ.

Publicado em 03 de novembro de 2019, 09:17 PM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

16 de outubro de 2019

Trial Observations grouped by locations, or "sub-zones"

The following links are to Search results for Trial observations showing various aspects of Survey, intervention and monitoring in "sub-zones" related to proximity to road and stream. The observations have been sorted from oldest to most recent, and will automatically update as observations are added or amended.

If something looks really surprising - eg wide sunlit spaces - check the age of the observation in the lower right corner of the thumbnail - eg 7m = 7 months, and 21y = 21 years. There are a few historic reference observations mixed in here.




Zone Bd - NativePlant Trail entry:

KR at Kaipatiki Roadside

KRL just under the roadside canopy where one exists, and down the start of the path leading to Valecrest Place and to the Native Plant Trail

KRS the bank below Kaipatiki Rd from a few metres below the roadside, to a few metres above the streamside

KSS the Kaipatiki Rd streamside

Stream: the stream in 2018-2019

WSS the Witheford streamside

WRS uphill of the Witheford streamside

Native Plant Trail - the path at entry from Kaipatiki Rd downhill to the first corner, viewed either going down, or coming back up; and the pathside flora of this section of path, on the uphill, road-edge side of the path, and on the downhill, forest-edge side

the path's continuation from this corner, going down, to the footbridge across the stream, (or coming back up), and the flora on the upstream, ie Zone Bd, side of this section of path.

Crossing the footbridge, then on the Witheford Reserve side of the stream, up the hill from the footbridge (or looking down) and the pathside flora on the zone Bd side of this section of path, and continuing (passing the fork on the left to the Native Plant Trail ) up the hill towards Valecrest Place and Witheford Drive, (or coming back down) the same section of path, and the pathside flora on the zone Bd side of this section of path


The Tradescantia of Zone Bd is being documented in "Tradescantia monitoring views" of the Kaipatiki Rd streamside, (or pre-intervention and during manual control) and the Witheford streamside, (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora of Zone Bd.




Zone Ca - "Kokopu Pool"

KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road

KRS the Kaipatiki Rd bank below the roadside and above the streamside

KRSPF the flora on the Zone Ca side of the path from roadside to footbridge

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail (including the waterfall and pool above the post-1997 erosion channel into the stream near the footbridge)

WRSVPP The Zone Ca side of the steps and path up to Valecrest Place


Tradescantia monitoring in Zone Ca

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS the the Kaipatiki Rd bank below the roadside and above the streamside (or pre-intervention and during manual control).

KSS the Kaipatiki Rd streamside (or pre-intervention and during manual control).

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora (mainly or all at the roadside) of Zone Ca.




Zone Cb - "Wheki Steps":
KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road

KRS the Kaipatiki Rd bank below the roadside and above the streamside

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail


Tradescantia monitoring in Zone Cb

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS the the Kaipatiki Rd bank below the roadside and above the streamside (or pre-intervention and during manual control).

KSS the Kaipatiki Rd streamside (or pre-intervention and during manual control).

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora (mainly or all at the roadside) of Zone Cb.




Zone Cc - "Ti Kouka Grove, Wheki Steps":

KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road

KRS the Kaipatiki Rd bank below the roadside and above the streamside

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail


Tradescantia monitoring in Zone Cc

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS the the Kaipatiki Rd bank below the roadside and above the streamside (or pre-intervention and during manual control).

KSS the Kaipatiki Rd streamside (or pre-intervention and during manual control).

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora of Zone Cc.




Zone Da - "Kauri Stump Pool":

KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road

KRS the Kaipatiki Rd bank below the roadside and above the streamside

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail


Tradescantia monitoring in Zone Da

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS the the Kaipatiki Rd bank below the roadside and above the streamside (or pre-intervention and during manual control).

KSS the Kaipatiki Rd streamside (or pre-intervention and during manual control).

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora (mainly or all at the roadside) of Zone Da.




Zone Db - "Mama Ti Kouka":

KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road
KRL at the bank immediately below Kaipatiki Road
KRS the Kaipatiki Rd bank below the roadside and above the streamside

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail


Tradescantia monitoring in Zone Db

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS the the Kaipatiki Rd bank below the roadside and above the streamside (or pre-intervention and during manual control).

KSS the Kaipatiki Rd streamside (or pre-intervention and during manual control).

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora (mainly or all at the roadside) of Zone Db.




Zone Ea - "Inanga Pool":

KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road

KRS the Kaipatiki Rd bank below the roadside and above the streamside

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail


Tradescantia monitoring in Zone Ea

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS - This bank is unstable, especially the lower half, ie the streamside, where it is also probably vertical for the last 1.5m, beneath a veil of hanging Tradescantia which presently covers the streambed.

The bank is mostly occupied by a dense mass of shrub and vine weeds, the control of which manually would be greatly aided by the presence of the Tradescantia, which could be withdrawn form the outer boundaries of the zone to help suppress and rot the shrub/vine weeds as they are cut.

A rock culvert from roadside to stream in the adjacent zone Eb, constructed in 1999 to reduce erosion by the outfall of a large stormwater pipe draining the road and the school grounds on the other side of the road, ends at the stream where outfall has eroded 2-3metres of the opposite bank.

No intervention is planned on the Kaipatiki Rd bank and streamside of this Zone during the current year of this Methodology Trial.

KRS the "Tradescantia monitoring views" of the Kaipatiki Rd bank below the roadside and above the streamside and any other Tradescantia monitoring.

KSS the "Tradescantia monitoring views" of the Kaipatiki Rd streamside and any other Tradescantia monitoring.

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora (mainly or all at the roadside) of Zone Ea.




Zone Eb - "Mamaku Run":

KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road

KRS the Kaipatiki Rd bank below the roadside and above the streamside

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail


Tradescantia monitoring in Zone Eb

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS and KSS - This bank is unstable, especially the lower half, ie the streamside, where it is also probably vertical for the last 1.5m, beneath a veil of hanging Tradescantia which presently covers the streambed.

The adjacent bank of Zone Ea is mostly occupied by a dense mass of shrub and vine weeds, the control of which manually would be greatly aided by the presence of the Tradescantia, which could be withdrawn form the outer boundaries of the zone to help suppress and rot the shrub/vine weeds as they are cut.

A rock culvert from roadside to stream, constructed in 1999 to reduce erosion by the outfall of a large stormwater pipe draining the road and the school grounds on the other side of the road, ends at the stream where outfall has eroded 2-3metres of the opposite bank.

No intervention is planned on the Kaipatiki Rd bank and streamside of this Zone during the current year of this Methodology Trial.

KRS the "Tradescantia monitoring views" of the Kaipatiki Rd bank below the roadside and above the streamside and any other Tradescantia monitoring.

KSS the "Tradescantia monitoring views" of the Kaipatiki Rd streamside and any other Tradescantia monitoring.

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora (mainly or all at the roadside) of Zone Eb.




The following links are to locations in which most of the observations are yet to be uploaded.





Zone Fa - "Little Pine hillock (at roadside), Wheki Pool, Hutmakers' slide":

KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road

KRS the Kaipatiki Rd bank below the roadside and above the streamside

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail


Tradescantia monitoring in Zone Fa

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS the the Kaipatiki Rd bank below the roadside and above the streamside (or pre-intervention and during manual control).

KSS the Kaipatiki Rd streamside (or pre-intervention and during manual control).

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora (mainly or all at the roadside) of Zone Fa.




Zone Fb - "Little Pine Hillock (at roadside), Fuchsia Pool, Sooty Mould Forest":

KR at Kaipatiki Roadside

KRL at the bank immediately below Kaipatiki Road

KRS the Kaipatiki Rd bank below the roadside and above the streamside

KSS the Kaipatiki Rd streamside

SS the stream in 2018-2019 (cf in 1997-99)

WSS the Witheford streamside

TWSS the bank above the Witheford streamside

TWSSPF the pathside flora along the downhill, ie nearer the stream, side of the path

TW (Taraire Walk, ie the Native Plant Trail), either going downstream or coming back upstream

TWWRPF the pathside flora along the uphill, ie further above the stream, side of the path

TWWR the bank above the Native Plant Trail


Tradescantia monitoring in Zone Fb

KR the Kaipatiki Rd roadside (or pre-intervention and during manual control).

KRL the bank immediately below the Kaipatiki roadside (or pre-intervention and during manual control).

KRS the the Kaipatiki Rd bank below the roadside and above the streamside (or pre-intervention and during manual control).

KSS the Kaipatiki Rd streamside (or pre-intervention and during manual control).

SS the streambed (or pre-intervention and during manual control).

WSS the Witheford streamside (or pre-intervention and during manual control).

TWSS the bank above the Witheford streamside (or pre-intervention and during manual control).

TW (Taraire Walk, ie the "Native Plant Trail" (or pre-intervention and during manual control).

TWWR the bank above the Native Plant Trail (or pre-intervention and during manual control).


Some of the native flora, some of the fauna, and some of the introduced flora (mainly or all at the roadside) of Zone Fb.

Publicado em 16 de outubro de 2019, 10:37 AM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

08 de outubro de 2019

Native seedlings and sporelings

Publicado em 08 de outubro de 2019, 06:51 AM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

29 de setembro de 2019

Pathside flora

We are always interested in the type, density and health of vegetation along the edges of the Native Plant Trail, its ongoing development, and the habitat it provides. Its low-impact design, defined only by spade-cut banks on the uphill side and intermittently-replaced decaying logs on the other, is a particularly valuable refuge for lizards, invertebrates, ferns, mosses, lichens and fungi.

The health of the stream and forest depend on the survival of forest trees to create and maintain a complete canopy. There are very few tall trees here, even fewer of them native, and what canopy there is mostly by smaller trees.

The juvenile trees most likely to survive to adulthood alongside paths are those arising a metre or more from the path, so that the regular path maintenance schedule is sufficient to prune them before Reserve users indiscriminately damage or destroy them to maintain a clear space for walking and running.

We note throughout the lower part of the site that the most native seedlings arise directly behind the timberpath edging, where leaf litter and woody debris collect, creating ideal conditions for seedling development.

During survey we frequently moved fallen branches and leaves to create these conditions about .5-1m back from the path edge, and if funding permits continuation of monitoring we will observe the effect of this, and the fate of previously-observed native tree seedlings and juveniles rooted both just behind the timber edging, and further back.

Currently-indexed observations of pathside flora are mostly upstream , in the Trial Zone area (Zones Bd-Fb) and can be seen here.

Publicado em 29 de setembro de 2019, 03:32 AM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

Plant health - Survey

These are observations whose health, good or bad, is of interest with regard to either the individual, the species, or the location, collected over the whole site
As with other observation sets, only a few have had the required search fields added so far, so these are preliminary results.

We note that death of trees is part of the natural cycle of forest life, and we are observing the rate of decline of individuals in certain species, what part if any a high rate of premature death of trees is currrently playing in a small and fragile forest remnant subject to the many impcts of urbanization.

This particular streamside forest remnant, though already dense and diverse and diversifying further naturally, is currently assessed by this observer as too small to survive without significant intervention, in the ever-increasing public use of the path, stormwater erosion, sewage overflows, incursion of invasive plants from both Reserve and roadside margins and from adjoining private properties, paving and tree felling on private properties, destruction of native canopy by the fall of large pines and wattles higher up the bank, erosion of coastal cliff by stormwater along the rut which has developed during the 20 years of public access via the path crossing this steep slope through particularly diverse forest, continued dumping of household and industrial waste along the roadside, and the instability of steep roadside streambanks built up during road construction and remaining treeless, and the use of herbicides in amenity vegetation control along the paths. The powerful odour of noxious gases from traffic also suggests a degree of air pollution, which may be incompatible with some species.

By zone: Zone Bb, Zone Bc, Zone Bd, Zone Ca, Zone Cb, Zone Cc, Zone Da, Zone Db, Zone Ea, Zone Eb, Zone Fa, Zone Fb

Publicado em 29 de setembro de 2019, 01:41 AM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

28 de setembro de 2019

Tradescantia monitoring and control


We will shortly be putting together a post illustrating the ongoing Tradescantia control trial.

We hope to make observations that produce comparable views over time, eg the stream at Zone Ca's "Kiekie Bay", in Initial Survey in April 2019


and in September 2019, after handweeding


The right bank (photo below) is not visible in the "After" photo, but was observed at the same time.


Publicado em 28 de setembro de 2019, 04:48 AM por kaipatiki_naturewatch kaipatiki_naturewatch | 0 comentários | Deixar um comentário

Arquivos