Cichlids do not adjust reproductive skew to the availability of independent breeding options

Cichlids do not adjust reproductive skew to the availability of independent breeding options

Helpers in cooperatively breeding species forego all or part of their reproduction when remaining at home and assisting breeders to raise offspring. Different models of reproductive skew generate alternative predictions about the share of reproduction unrelated subordinates will get depending on the degree of ecological constraints. Concession models predict a larger share when independent bree...

Reproductive suppression in female cooperatively breeding cichlids.

Suppression by dominants of female subordinate reproduction has been found in many vertebrate social groups, but has rarely been shown experimentally. Here experimental evidence is provided for reproductive suppression in the group-living Lake Tanganyika cichlid Neolamprologus pulcher. Within groups of three unrelated females, suppression was due to medium- and small-sized females laying less f...

Reproductive Skew, Cooperative Breeding, and Eusociality in Vertebrates: Hormones

Models of reproductive skew: outside options and the resolution of reproductive conflict

Why do trees adjust water relations and hydraulic architecture in response to nutrient availability?

1Laboratorio de Ecología Funcional (LEF), Departamento de Ecología, Genética y Evolución, FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina; 2Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina; 3Department of Biology, University of Miami, PO Box 249118, Coral Gables, FL, USA; 4Grupo de Estudios Biofísicos y Eco-fisiológicos (GEBEF), Departame...