Reproductive biology of Argenteohyla siemersi pederseni Williams and Bosso, 1994 (Anura: Hylidae) in northeastern Argentina

CAJADE RODRIGO; E. SCHAEFER; DURÉ, M. I.; KEHR, A. I.; F. MARANGONI

JOURNAL OF NATURAL HISTORY

TAYLOR & FRANCIS LTD

Año: 2010 vol. 34 p. 1953 - 1978

0022-2933

The present study describes the reproductive biology of  Argenteohyla siemersipederseni in a modified “quebracho” forest of Schinopsis balansae in northeasternArgentina. Observations were made between January 2007 and March 2009 at ElPerichón, Corrientes Province, Argentina. Argenteohyla s. pederseni bred once peryear over a 3-day period in a semi-permanent pond during the first spring rains inmid-September. Males called while floating on the water surface. The advertise-ment call was short and repeated at regular intervals in relatively fast succession,forming groups of multiple calls. Aggressive calls were evoked in two differentagonistic interactions. Eggs were black, laid in three-dimensional arrangements inter-spersed within the submerged vegetation. Egg number per clutch ranged from2638 to 8987. Tadpole redescription shows many differences and similarities withprevious descriptions. The reproductive biology of A. s. pederseni has several simi-larities with another pond-dwelling casque-headed frog species