1 Tr - Chioglossa

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de que na actualidade soamente resta menos dun
10% do humidal orixinal, non dubidamos que
un ha rexeneración integral permitiría á lagoa de
Cospeito recuperar en breve prazo a importancia
que tivo outrora (véxase. por exemplo, a información
(:ensal en Bernis. 1964, para os anos
1944-64, unha época de caza libre e anárquica).
Así mesmo. a lagoa podería acadar un maior
grao de realización se fose recuperada axeitadamente,
executándose medidas de xestión e
manexo do hábitat coidadosas, tendentes a
incrementar a disponibilidade de recursos tróficos
e a restaurar a diversidade estructural tanto
no que se refire á masa de auga como á vexetación
acuútica.
Agradecementos
A Carmen Lence por suposto. a Luis Costa e de xeito
especial a José A. de Souza. que revisou o orixinal e
realizau non poucas valiosas aportacións.
SUMMARY
The wintaing water:f(¡H'1 community (il the Cospeito
lagoon (Lugo. NW Spain)
The waterfowl on the Cospeito lagoon and wet grasslands
-oOJe of the few natural inland wetlands remaining
in Galicia. even though partially drained- was
regularly censused between September and March
1987-88. 1988-89 and 1989-90, and several parameters
of the community are described in this paper. The
total number of species detected was 29. Peak total
counts ranged from 1,080 to 3,290 birds. Bird numbers
tlucluated widely, maximum abundance and species
richness being reached in the colder months
(December-January). Accordingly. diversity also reached
its :oighest values with the arrival of wintering
wildfowl and waders. Eveness was low to moderately
low and dominance was almost entirely determined
by theMallard.being sometimes outnumbered by
Lapwings in midwinter. The community was largely
made up by omnivorous birds, though herbivorous
and zaoprIagous species almost codominate in midwinter.
Despite the relatively low diversity, the Cospeito
lagoon and surroundings were regionally important
for various waterfowl species and also for the
Little Bu;tard -which shares the grasslands with
CHIOGLOSSA. 1 (1999)
meadow waders- and reached national importance
for Teal. Taking into account that at present it
remains only less than 10% of the former wetland
extent. it is strongly suggested that an appropriate restoration
program should readily give the lagoon back
its former importance as a prime waterfowl habitat.
Key words: community structure. Cospeito lagoon,
waterfowl, wintering.
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