An Fhearnóg
An Fhearnóg
Crann úsáideach í an fhearnóg a fhásann ar bhruacha abhann agus ar féidir léi a cuid nítrigine féin a chuir ar fáil sa talamh. Cruthaíonn sí leasú di féin agus is féidir léi fás i dtalamh bocht nó in ithir a corraíodh. Nuair a thiteann na duilleoga spreagann siad éiceachórais an uisce, meallann siad a lán feithidí agus itheann éisc agus éin iad sin.
Alder
A useful coloniser of riverbanks, alder can ‘fix’ its own soil-borne nitrogen. It is therefore self-fertilising and able to grow in poor or disturbed ground. Its leaf fall helps to drive aquatic energy ecosystems, attracting many insects which are in turn eaten by fish and birds.
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