CEPAVE   05420
CENTRO DE ESTUDIOS PARASITOLOGICOS Y DE VECTORES
Unidad Ejecutora - UE
artículos
Título:
Notes on egg-sacs and spiderlings of two species of Grammostola (Araneae: Theraphosidae) from Central Argentina
Autor/es:
NELSON FERRETTI; GABRIEL POMPOZZI; SOFÍA COPPERI
Revista:
Journal of the British Tarantula Society
Editorial:
British Tarantula Society
Referencias:
Año: 2012 vol. 27 p. 53 - 61
ISSN:
0962-449X
Resumen:
Tarantulas (theraphosid spiders) possess life-history traits that differ markedly from other spiders. For example, some species live for 15–30 years and require 5–6 years to reach reproductive maturity (Main 1978, Vincent 1993). Most species are habitat specialists and are extraordinarily sedentary (Main 1987, Vincent 1993, Coyle & Icenogle 1994). This combination of life-history characteristics such as longevity, habitat specialism with poor dispersal abilities and small geographic ranges, parallels general characteristics of taxa that are extinction prone, either at the population or species level (McKinney 1997). Two tarantula species inhabit south of Buenos Aires province, Argentina, Grammostola doeringi (Holmberg, 1881) and Grammostola vachoni Schiapelli & Gerschman, 1961. Grammostola doeringi can be easily found in nearby the locality of Bahía Blanca, where it lives in tubular burrows that are constructed in open fields. The other tarantula species, Grammostola vachoni, inhabits burrows constructed under stones in the rocky hills. The aim of this study is to present preliminary notes about the development of these two Grammostola species.