Confirmation of parthenogenesis in Tityus trivittatus kraepelin 1898 (Scorpiones, Buthidae).(SHORT COMMUNICATION)

From: Journal of Arachnology | Date: September 1, 2005| Author: Toscano-Gadea, Carlos A. | Copyright information

ABSTRACT. The parthenogenesis in Tityus trivittatus Kraepelin 1898, is confirmed for the first time, based on the progeny of three virgin females raised in isolation since their birth. The possible and occasional introduction of this species into Uruguay is discussed.

Keywords: Scorpions, asexual reproduction, Uruguay

**********

Just seven species of scorpions, from a total of approximately 1500 known (Fet et al. 2000), have been documented as parth...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and journal articles from HighBeam Research

Strobilanthes: panicled species from East Asia
Kew Bulletin ; ... S. pubescens are made. A key is provided to facilitate identification. Several species are illustrated for the first time and maps show the distribution of all species discussed in this paper. The inflorescence in Strobilanthes is very variable with flowers ...
America's act of hope. (Endangered Species Act)
Science World ; When it comes to endangered species, there are no easy choices. Say you decide to donate a portion of your allowance to help protect one of the species pictured on this page. Which one would you choose? The orangutan--a mammal--is big, smart, and closely related to humans. Maybe it should get your
Species, subspecies, and races.
Social Research ; The human species can be looked at from two quite different perspectives. The first perspective is that we are unique--fundamentally different from all other species. How do we protect ourselves from such antigens as viruses? Advocates of the uniqueness thesis would reply, by our own uniquely human
This land is whose land? (protecting endangered species often poses hardships for humans on whose land they live)
Science World ; Should endangered species be saved at all costs? Join the debate as Congress decides whether to make major changes in the Endangered Species Act. Yshmael Garcia woke up to the sounds of a crackling blaze at 3 o'clock in the morning on October 27, 1993. As Garcia and his family escaped, they watched
A New Species of Amolops (Anura: Ranidae) from Southwest China
Copeia ; A new species of Amolops is described from a mountainous area of southern Yunnan Province, China. The species is unique in having a dark purple dorsum with small light yellow spots. The spots are smaller than the smallest finger disk. Other characters that distinguish this species from other
MODELING THE OCCURRENCE OF BIRD SPECIES: ARE THE ERRORS PREDICTABLE?(Brief Article)
Ecological Applications ; Abstract. Typical assessments of models where many species occurrences are predicted (e.g., from species-habitat matrices or Gap Analyses) report overall omission and commission errors. Yet species' attributes suggest that we may predict a priori that some species are more likely to be modeled
Sequence Diversity, Reproductive Isolation and Species Concepts in Saccharomyces
Genetics ; ABSTRACT Using the biological species definition, yeasts of the genus Saccharomyces sensu stricto comprise six species and one natural hybrid. Previous work has shown that reproductive isolation between the species is due primarily to sequence divergence acted upon by the mismatch repair system and
The number of the beasts. (counting species)
The Economist (US) ; ... an ecology, both in the form of evaporation through soil and transpiration through leaves. Dr Currie thinks the tally between maps is evidence that the more energy that is available for plants, the more types of plants there will be to exploit it. Evapotranspiration ...
Three new species of Cola (Sterculiaceae) from western Cameroon
Kew Bulletin ; Summary. Three new species of Cola, C. cecidiifolia Cheek, C. metallica Cheek and C. suboppositifolia Cheek, all with simple-leaves and short-petioles, are described from western Cameroon and their conservation status is reviewed. A vegetative key to the 24 species of Cola known from Mt Cameroon,
Trophic rank and the species-area relationship.
Ecology ; INTRODUCTION The tendency for species richness to increase with area (the species - area relationship ) is one of the most robust empirical generalizations in ecology (May 1975, Rosenzweig 1995). Most studies of species - area patterns have focused on particular taxa, guilds, or functional groups,