Archive

PONDERING PONDS

20/06/2024

We have been protecting ponds in our survey and landscape management work for nearly forty years, ever since we started Betts Ecology in fact. Indeed, whenever a development project to which we have been appointed as consultants and has had to remove a pond that could not be retained, we have tried to ensure that not just one, but two new ones were created in its place. We also ensure that the original pond being lost would be carefully surveyed and its nekton, plankton and benthos translocated to inoculate the new ones. Similarly, when natural processes of ecological succession have led to ponds silting up, becoming desiccated and being overtaken by terrestrial, non-aquatic species’ assemblages, we work to ensure the restoration of the watery environment and its denizens.

Ponds are exceptionally valuable habitats for wildlife, supporting a wide range of flora and fauna. It has been estimated that over a thousand species occur in small, fresh water ecosystems of this type in Britain. We wrote a guidance sheet on ponds a few years ago which I have reproduced for you below.

One of the main keys to success is planting.  Vegetation should be of native origin, if possible, from a local donor site, and include a range of species suitable for the different micro-habitats of the pond.

 

 

Alisma plantago-aquatica   water plantain

Alopecurus geniculatus      marsh foxtail

Callitriche stagnalis            common water starwort

Caltha palustris                  marsh marigold

Carex riparia                      greater pond sedge

Ceratophyllum demersum   rigid hornwort

Epilobium hirsutum            great willow-herb

Glyceria fluitans                 floating sweet-grass

Juncus effusus                  soft rush

Iris pseudacorus                yellow flag

Mentha aquatica                water mint

Myosotis scorpioides          water forget-me-not

Myriophyllum spicatum       spiked water milfoil

Nuphar lutea                      yellow water-lily

Persicaria amphibia            amphibious bistort

Ranunculus aquatilis          water crow-foot

Veronica beccabunga        brooklime

Ecological terms for pond communities (the nekton is the assemblage of actively swimming organisms in the water body)

A bucketful of the mud and sludge from a local healthy pond is a good way to inoculate a new pond with micro-organisms. Ponds can suffer all kinds of problems, though - blanket weed, duckweed and invasive exotic water-plants, cyanobacteria, algal blooms, eutrophication – there’s a long list.

 

Betts Ecology will always protect ponds and create new ones wherever we can. We can provide designs for ponds of different types as well as supervising construction, establishment and management.

 © Betts Ecology