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Habitat
Action Plans
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Grazing Marsh
Habitat
Grazing marsh is pasture which is periodically inundated, or meadow
with ditches to maintain the water levels, containing standing freshwater.
These areas may be grazed or cut by mechanical means.
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Lapwing, Vanellus vanellus,
breed on grazing marsh.
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In the Tees Valley area, this category comprises a range of communities
near watercourses where the soil is often waterlogged. The botanical
composition varies widely depending on soil, water regime and management.
Grazing marshes can be valuable for breeding waders and wintering
waterfowl. They also provide an opportunity for more extensive agriculture
as
financial incentives are available, and also serve as additional
flood storage areas. Current Status
Grazing marsh is a rare habitat type across the UK, as in the Tees
Valley, covering only 300,000ha. Of this UK total, only 10,000ha
is semi-natural with a high diversity of native plant species.
Grazing marsh is of importance botanically and ornithologically,
providing an important breeding and feeding area for wading birds.
The grazing
marsh in the Tees Valley is of local importance as it represents
the remaining fragments of a rare habitat type. Due to their rarity,
most
of these marshes are already designated wildlife sites.
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Yellow Wagtail,
Motacilla
flava,
found on
grazing marsh habitat.
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Grazing Marsh on the Greatham Site
The accompanying
map (PDF) shows the position of the Grazing
Marsh on the Greatham site. A large proportion of the Greatham site
is grazing marsh, as it is permanently wet, and contains drains and
ditches. These areas on the site are grazed by a very small herd of
Roe Deer, as well as Rabbit and Brown Hare. There are also established
orchid populations within the grazing marsh. These areas have been highlighted
on the accompanying
map (PDF). The orchids present on site
are the Northern Marsh-orchid, the Common Spotted-orchid and the Fragrant
Orchid.
The local Cowpen Grazing Marsh, around 600 metres from the Greatham
Site, is designated as a SSSI, showing the importance of grazing
marsh in the local area.
The grazing marsh on site provides a good habitat for Snipe and
Lapwing, as well as providing damp, wet ground for Common Frogs
and Common
Toads.
Current Factors Affecting the Habitat Nationally
- Disruption of flooding regimes and water levels due
to agricultural intensification, land drainage and flood defence
works.
- Lack of traditional management and inappropriate management
e.g. overgrazing or lack of grazing.
- Development pressure and disturbance
from industrial and urban areas.
- Eutrophication due to industrial
and agricultural pollution.
Key Grazing Marsh Species on the Greatham Site
| Flora |
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| Rushes, especially Saltmarsh rush |
Local BAP Species, characteristic of this kind of
habitat. Saltmarsh rush is present on site. |
| Sedges, especially Distant sedge |
Local BAP Species, characteristic of this kind of
habitat. Distant sedge is present on site. |
| Greater Bird’s-foot trefoil |
Local BAP Species. Found on site. |
| Flote-grass |
Local BAP Species. Found on site. |
| Fauna |
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| Snipe |
Local and UK BAP Species. Fairly common and resident
on site, but not yet breeding on site. |
| Lapwing |
Local and UK BAP Species. Breeds on site. Important
conservation species nationally. |
| Redshank |
Local and UK BAP Species. Breeds on site. Red Data
Book Species, breed in internationally important numbers locally. |
| Yellow Wagtail |
Local and UK BAP Species. Breeds on site. |
| Common Frog and Common Toad |
Local and UK BAP Species. Grazing marsh could provide
valuable damp habitat for these species, and possible hibernating
areas. |
| Brown Hare |
Local and UK BAP Species. Breeds on site and feeds
on grazing marsh. Declining nationally. |
| Roe Deer |
Local and UK BAP Species. Breeds on site, grazes on
grazing marsh. |
Current Action
SSSI and other designation.
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Redshank, Tringa tetanus,
at
nest. This Red Data Book
Species
breeds on site
in grazing marsh.
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National Targets
- Maintain existing habitat extent (300,000ha) and quality.
- Rehabilitate 10,000ha of grazing marsh which has dried out,
or is intensively managed by the year 2000. This would compromise
5,000ha
already in ESA’s plus an additional 5,000ha.
- Creation of
2,500ha grazing marsh from arable land in targeted areas, in
addition to that which will be achieved by existing ESA schemes,
with the aim of completing as much as possible by the year
2000.
Local Objectives
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Protect and enhance all existing grazing marsh.
- Advise on the management of locally important sites to improve
their value for wildlife.
- Discourage use of agrochemicals.
- Rehabilitate degraded habitat, particularly adjacent to existing
high quality habitat.
Management Plan for Grazing Marsh on Greatham Site
- Ensure that any future development fully considers
the nature conservation interests of grazing marsh on site.
- Continue monitoring of key grazing marsh species, in order to assess
population size and distribution. Species Action Plans for key species
have been included.
- Maintain the present numbers, distribution and productivity of
key species breeding on grazing marsh.
- Where possible, increase the populations of
key wet grassland bird species by enhancing the management of
existing areas of
suitable habitat. Further management plans will be included in the Species
Action plans of key grazing marsh bird species.
Action Plans for Key Species
The 3 key species for grazing marsh habitat, for which Species Action
Plans have been produced, are:
- Amphibians
- Redshank
- Lapwing
These 3 species will act as ‘indicator’ species for the grazing
marsh on the site, to determine its status, and any positive effects
of the management plans.
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