Contributions to the reproductive biology and behaviour of the dotted reed frog, Hyperolius guttulatus , in southern-central Ivory Coast, West Africa

We studied the reproductive behaviour of Hyperolius guttulatus in swampy areas of the Azagny National Park, southern-central Ivory Coast. Males congregated in large choruses almost every night around breeding ponds while the number of females per night was comparatively small. We observed a significant sexual size dimorphism. While most reproducing H. guttulatus were encountered at the beginning of the rainy season in mid-April, the breeding period extended more or less continuously until October in swamps of various types. The maximum number of eggs per clutch was 414. Most calling male H. guttulatus were well concealed situated at heights from 109 to 143 cm above ground, on plants that grew on land as well as plants emerging from water.