Contemporary Colonisation by Waterbirds of a Small Dam Lake in Central Argentina

Abstract

A population of 80 individuals of five waterbird species which arrived at a small dam in Alta Gracia City, Córdoba, Argentina was studied. Observations over 30 years enabled us to confirm that no waterbird populations had settled there previously. The 1.4-ha and 1.5-m deep lake (known as “Tajamar”), was built by the Jesuits in the middle of 17th century to store water for irrigation. It contains submerged vegetation of Egeria densa and Chara sp. and areas of open water and also has some species of small fish. The numbers of waterbirds were recorded at varying intervals between 2005 and 2009. The breeding of White-winged Coot (Fulica leucoptera) and Pied-billed Grebe (Podilymbus podiceps) were documented in the Tajamar, as well as the extinction and re-colonisation of Pied-billed Grebe and an increase in the number of individuals by successive immigrations of the Neotropic Cormorant (Phalacrocorax olivaceus). We also constructed the time-line for species arriving and departing.

Keywords

colonisation birds Fulica leucoptera Podilymbus podiceps reservoir central Argentina

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References

Carlquist

(1974) Island biology. Columbia University Press, New York and London.

Davis

and Dunford

(1987) An example of contemporary colonization of montane islands by small, nonflying mammals in the American Southwest. Am. Nat., 129, 398–406.

Dudley Williams

(2006) The biology of temporary waters. Oxford University Press, Oxford, New Jersey.

Fox

A.D.

, Jones

T.A.

, Singleton

and Agnew

A.D.Q.

(1994) Food supply and the effects of recreational disturbance on the abundance of wintering Pochard on gravel pit complex in southern Britain. Hydrobiologia, 279/280, 253–261.

Gorenzel

W.P.

, Ryder

R.A.

and Braun

C.E.

(1982) Reproduction and nest site characteristics of American Coots at different altitudes in Colorado. Condor, 84, 59–65.

Grant

P.R.

and Grant

B.R.

(1995) The founding of a new population of Darwin's Finches. Evolution, 49, 229–240.

Hanson

M.A.

and Butler

M.G.

(1994) Responses of plankton, turbidity, and macrophytes to biomanipulation in a shallow prairie lake. Can. J. Fish Aquat. Sci., 51, 1180–1188.

Hargeby

, Andersson

, Blindow

and Johansson

(1994) Trophic web structure in a shallow eutrophic lake during a dominance shift from phytoplankton to submerged macrophytes. Hydrobiologia, 279/280, 83–90.

Klaassen

and Nolet

B.A.

(2007) The role of herbivorous water birds in aquatic systems through interactions with aquatic macropytes, with special reference to the Bewick's Swam-Fennel Pondweed system. Hydrobiologia, 584, 205–213.

10.

Mayr

(1965) The nature of colonization in birds. In: Baker

H.G.

and Stebbins

G.L.

(eds.), The genetics of colonizing species, pp. 29–47. Academic Press, New York.

11.

Noordhuis

, van der Molen

D.T.

and van den Berg

M.S.

(2002) Response of herbivorous water-birds to the return of Chara in Lake Veluwemeer. Netherlands Aquat. Bot., 72, 349–367.

12.

Paradis

, Baillie

S.R.

, Sutherland

W.J.

and Gregory

R.D.

(1998) Patterns of natal and breeding dispersal in birds. J. Anim. Ecol., 67, 518–536.

13.

Scheffer

, van Geest

G.J.

, Zimmer

, Jeppesen

, Søndegaard

, Butler

M.G.

, Hanson

M.A.

, Declerck

and De Meester

(2006) Small habitat size and isolation can promote species richness: second-order effects on biodiversity in shallow lakes and ponds. Oikos, 112, 227–231.

14.

Vuilleumier

(1986) Colonisation des milieux insulaires. In: Encyclopédie universalis, pp. 209–214. Paris.