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Creating a Wildlife-Friendly Water Garden
Water is life. It is indispensable to all of earth’s
plants and animals. With a little effort and space,
you can add the magic of water to your personal
landscape, in the form of a pond or a container, and
then watch as a community of backyard wildlife
develops.
Traditional garden ponds are designed for growing
aquatic plants and keeping ornamental fish. To meet
these specialized needs, the ponds have steep sides
and flat bottoms, often with a shelf around the
perimeter for containers of plants that need to grow
in standing water. Prefabricated ponds usually range
in depth from twelve to twenty-four inches. These
configurations and depths will keep ornamental fish
and water lilies healthy, and they allow for the
wintering over of plants and fish in colder climates.
However, they are not really suited for wildlife. The
steeper and deeper the pond, the more dangerous it is
for birds, mammals, and reptiles to use for drinking
or bathing.
Plan with Wildlife in Mind
If a pond is to be usable to wildlife, it must
allow an animal access to water without the danger of
slipping or falling into deep water from which the
animal cannot escape. Think of a birdbath. What draws
the birds is a shallow pan of water into which they
can hop or wade safely. A wildlife-friendly pond
should have a similar shape on a larger scale. This
means that the slope of the pond, and the material of
the pond bottom, and the edging around the pond become
important considerations.
Because prefabricated ponds and containers are not
the appropriate shape, a plastic or rubber pond liner
is probably the best choice for building a pond. Using
a liner, you can create a shallow pond with a gradual
sloping area at the edges. If you limit the deepest
part of the pond to six or eight inches and include
sizable rocks, tree limbs, or floating plants in the
deeper portions, you can eliminate the risk of
drowning for most animals.
Location
Position your pond where it will receive four or
more hours of direct sunlight. This helps ensure that
water lilies and other aquatic plants will grow well.
Avoid areas shaded by deciduous trees or shrubs- their
leaves will fall into the pond, and make excavation
difficult. Be sure to steer clear of low-lying areas
that naturally collect runoff or drainage water. Give
underground utility lines a wide berth. (Call your
local utility company to find out where your utility
lines are.)
You will be refilling your pond regularly, so place
it near a convenient source of water.
Underlayment
First, create a bed of protective material to avoid
punctures in the pond’s liner by rocks, roots, or
other debris. You can find special fabrics for this
purpose at a pond supply store. Builders’ sand is
also a useful underlayer
Liner
You can choose from a variety of plastic and rubber
liners. Plastic liners are cheaper but thinner, and
rubber liners are more durable.
Pond Edging
You can choose from many materials to finish off
the edge of a pond: slate, brick, edging, rocks,
concrete, turf grasses, and other plantings. Keep in
mind that the edging of the pond should not present an
obstacle to an animal trying to get into or out of the
water.
Construction
Once you have picked a location and purchased
materials, start digging. After you have dug the
shallow hole for the pond, line it with an appropriate
underlayment, and then lay the liner. Next, fill the
pond, trim the liner, and set the edging in place.
Consult a reputable water gardening company or your
state or county extension agency (find the number in
the government section of the telephone book) for
further technical information appropriate to your
geographical area.
Consider some "pond-scaping" to further
enhance your pond’s appeal for wildlife. You can
provide handy perches by placing flat rocks in the
water or by laying tree branches across a section of
the pond.
Maintenance
Normal maintenance includes topping off the pond
with fresh water and removing any debris that lands in
the pond. Because a wildlife-friendly pond is much
shallower than the typical garden pond, the water will
probably evaporate faster, so keep a watchful eye on
water levels. You may also find algae grows more
quickly. Try partially changing the water on a regular
basis. Submerged aquatic plants may also cut down on
algae growth. Consult your local water gardening
suppliers for more suggestions.
Keep in mind the needs of the animals who live
around you as they attempt to use the pond as a source
of water. Birds, for instance, find moving water
fascinating; if your pond includes a recirculating
pump for filtering or a waterfall, place a flat rock
under the inflow to the pond for an instant bathing
area. Birds, amphibians, and insects will also land or
sit on large lily pads and drink from the edge of the
leaf. You might see goldfinches or red-winged
blackbirds perch on the vertical stems of plants
rising out of the water to drink, or barn swallows
scooping moist earth from the pond edge or potted
plants to make nests.
No matter how large or small your property, you can
enhance its value for wildlife with the addition of a
well-planned water garden. In doing so, you create
another connection between yourself and the natural
world.
Richard Farinato
Wild Neighbor News
The Humane Society of the United States
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