Écologie De Quelques Trigones (Trigona Sp.) De La Savane De Lamto (Cote D'ivoire)

Abstract

2) The small bee species (Hypotrigona and Liotrigona) appear to show no biotopic preference for any particular feature of savannah.3) The development of the Hypotrigona workers lasts from 39 to 40 days.4) The number of eggs produced daily by a queen varies somewhat from one colony to another (from 22 to 82 eggs per day).5) The rate of egg production is independent of the number of individuals in the colony. 6) At Lamto, the monthly average weight of the brood stays almost the same during the wet and the dry seasons.7) The estimated weight of nymphs, larvae and food in an average colony of 1,100

Competition and Nest Spacing in a Tropical Stingless Bee Community

“…We are aware of only one other published study of the density of stingless .bee colonies. Darchen (1972) found the density of stingless bee nests in an open savanna-woodland in the Ivory Coast of Africa to be =2.5 nests/ha. The species he studied were all smaller than our Trigona frontalis, and averaged 3 mg per individual worker.…”

A molecular phylogeny of the Old World stingless bees (Hymenoptera: Apidae: Meliponini) and the non‐monophyly of the large genusTrigona

“…The Afrotropical meliponine fauna is less diverse than the Neotropical or Indo‐Malayan/Australasian faunas, based on its relatively fewer species (nineteen species; Eardley, 2004) and genera (ten genera; Moure, 1961), and its low abundance in most parts of Africa (although see Darchen, 1972; Kajobe & Roubik, 2006). The taxa (excluding Hypotrigona ) are united morphologically by the worker gonostyli, which are enlarged, apically diverged and covered with micropilosity (Camargo & Pedro, 1992a, b).…”

Honey‐Making Bee Colony Abundance and Predation by Apes and Humans in a Uganda Forest Reserve1

“…African stingless bees differ from those of other geographic areas, being either relatively large or very small, e.g. , Meliponula vs. Hypotrigona (see Darchen 1972) or Liotrigona . The Pygmy guides probably located all of the large species but failed to find one or two of the smallest species.…”

“…The absence of ground‐nesting M. lendliana in the upper elevation sector of BINP, where ground nests were generally abundant for another species, suggests that incidental or indirect mutualists that leave unoccupied nesting cavities ( e.g. , termites, Darchen 1972) may also regulate nest populations. The entrance to hypogeous termite nests is not straight and loops in the soil, making nests difficult to reach by humans or chimps using flexible stems as probes (D. W. Roubik, pers.…”

“…(2003), while fewer studies concern natural nesting densities of tropical Apis , the “honey bees” (Table 1). Both food and nesting site availability are implicated as determinants of stingless bee nest abundance, but no previous work has treated Afrotropical forests, or even native Apis and Meliponini in the same habitat (but see Darchen 1972, Schneider & Blyther 1988, Roubik 1996, Stierlin & Roubik, Table 1). Moreover, if competition and food limit colony density, such interaction may also determine foraging behavior (Villanueva & Roubik 2004), or colony size, survival, and rate of reproduction.…”