01393nas a2200169   4500008004100000245010200041210006900143260000900212300001200221490000700233520085900240100002401099700001901123700002001142700002601162856003501188       1995                        eng d00aHemisus marmoratus (Peters, 1854) (Anura: Hemisotidae): Reproduction strategies of a savanna frog0 aHemisus marmoratus Peters 1854 Anura Hemisotidae Reproduction st  c1995  a191-2070 v453 a<p>Hemisus marmoratus uses a breeding chamber for eggs and early tadpole stages. As some nests are even made before the beginning of the rainy season, Hemisus-tadpoles are the first tadpoles arriving in the temporary ponds. Thus they have a developmental advantage to tadpoles of other species and to predators. The time tadpoles spend in their nest is variable. So they may be able to react on the not forseeable rainfalls of their savanna habitat. Despite the channel theory of Wager (1986) our observations speak for additional strategies of the tadpoles reaching water. These may be transport by the mother, sliding on wet soil down to water or floating of the breeding chambers. The use of a certain strategy may depend on habitat structure. Beside these reproductive observations we give further data on activity, food and larval development.</p>
1 aRödel, Mark-Oliver1 aSpieler, Marko1 aGrabow, Karsten1 aBoeckheler, Christoph  u<Go to ISI>://PREV199698560566