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List / P12 "Waterfowl" Information Network
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- "WATERFOWL" INFORMATION
NETWORK International Conference
Wetland Management: A problem orientated approach to degradation and restoration
Causes of degradation overuse, multiple use, pollution, operational management, species introductions, urban/agricultural encroachment. Management itself is rarely the direct cause, rather an exacerbating factor
When do you intervene may depend on objectives, usually when there is either a problem (real or perceived) or a loss of ecological function
Stepwise approach towards restoration
Methods of stopping/reducing degradation and restoration techniques
Importance of community involvement and local opinion
Lake with an island, adjacent to a childrens play area. Complaints about excess wildfowl being present, leading to fouling of grass, poor water quality and rat problem. What is to be done?
Pricking eggs, change vegetation on island, disturb nesting attempts, change bank slopes and fence new planting, fence playground, increase length of adjacent grass, ban feeding, rat catcher, trapping and releasing, last ditch attempt, culling, preventing roosting.
Two lakes, both shallow, with inflow to the top lake. Heavy visitor pressure and a high wildfowl population, coarse fishery, shaded margins and eroding banks. No aquatic vegetation and a high algal loading.
Find out water quality of inflow, current water quality, fish stocks, other inflows to the lakes. Determine management/recreational aspirartions, separate fishing from one lake, silt pond/reed bed on inflow, change profile of banks, stabilize banks, plant banks, fencing off planting, wave baffles, dredging, desilting, is there sufficient water to refill disposal of sediment. Aeration. Invertebrate establishment, planting aquatics, protection from birds and fish. Adjacent land planting, grass management. Changes in water levels. Development of a management plan. Cost, effort, likely success. Public involvement and information.
Lake, with an undulating margin, fished, sailed and with good waterbird populations. Much concern about retention of waterbirds.
Identification of desires and conflicts eg deep water birds or marginal birds, type of activity, eg bank or boat fishing, sailing boat type, walkers, oil from rescue boat, marginal vegetation management, retention of water levels, barriers for access, planting across the skyline, shore access. Public involvement and information.
Andrews Ward Associates
John Andrews: Tel: 01480 810866
Tel: 0191 383 2222
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