Early life history patterns were studied in the caridean shrimp, Campylonotus vagans Bate, 1888, from the subantarctic Beagle Channel (Tierra del Fuego). As a consequence of very large egg size (minimum 1.4 mm), fecundity was low, ranging from 83 to 608 eggs per female (carapace length [CL] 11–22.5 mm). Egg size increased continuously throughout embryonic development, reaching prior to hatching...

Abstract Bumble bees ( Bombus spp.) are important pollinators, yet rapidly declining globally. In North America some species thriving while others nearing extinction. Recognizing subtle differences in species’ biology and responses to environmental factors is required illuminate key threats understand their different population trajectories. We intensively surveyed bumble Ohio, USA, along the r...

Learning difficult tasks requires an extended period of experience. It is unclear, however, what level of experience is exhibited by individuals in natural populations. If many individuals are rather inexperienced at any given time, they may not possess subtle information concerning, for example, local distributions of reward and danger, which may require long acquisition periods. To quantify i...