Juvenile hormone (JH) exerts pleiotropic functions during insect life cycles. The regulation of
JH biosynthesis by neuropeptides and biogenic amines, as well as the transport of JH by …

Bumble bees are of major importance, ecologically and economically as pollinators in cool
and temperate biomes and as model organisms for scientific research. Chemical signals …

Bumblebees are familiar and charismatic insects, occurring throughout much of the world.
They are increasingly being used as a model organism for studying a wide range of …

Bumblebee workers vary greatly in size, unlike workers of most other social bees. This
variability has not been adequately explained. In many social insects, size variation is …

In this book, the biologist Raghavendra Gadagkar focuses on the single species he has
worked on throughout his career. Found throughout southern India, Ropalidia marginata is a …

In many bees, wasps, and ants, workers police each other in order to prevent individual
workers from selfishly producing their own male offspring. Although several factors can …

Publisher Summary This chapter discusses the endocrine control of insect polyphenism.
Polyphenism in insects is associated with some of the most striking and successful life …

Inclusive fitness theory explains how helpers reproduce indirectly via the breeders they help.
The inclusive fitness helpers get depends on their relatedness to the breeder (s), colony …

Bumble bees are an outstanding model system in which to study the organization and
evolution of complex social behaviour. Bumble bees pass through several distinct phases …

In this study we describe colony development, larval development, worker reproduction and
mating frequency of the queen in laboratory colonies of Bombus impatiens Cresson …