Parthenogenesis in scorpions: some history - new data
نویسندگان
چکیده
منابع مشابه
A new hypothesis to explain geographic parthenogenesis
In many plants and animal species, asexuals are more common in marginal habitats such as high latitudes or altitudes than their closely related sexual counterparts. Here we propose a new hypothesis to explain this pattern called “geographic parthenogenesis”. In marginal habitats, populations may often exist as metapopulations with high degrees of subdivision and local extinction and recolonizat...
متن کاملScorpions of Europe
This brief review summarizes the studies in systematics and zoogeography of European scorpions. The current “splitting” trend in scorpion taxonomy is only a reasonable response to the former “lumping.” Our better understanding of scorpion systematics became possible due to the availability of new morphological characters and molecular techniques, as well as of new material. Many taxa and local ...
متن کاملdata analysis in oral history: a new approach in historical research
abstract background: historical research has limitations in applying proper and credit-worthy chronology to clarify the data. in this methodology, the application of oral history is one of the ways in which answers to questions addressed by the research theme are elicited. oral history, as a clear and transparent tool, needs to be applied with guidelines for qualitative researchers regarding da...
متن کاملThe new social history of medicine: some implications for research.
It has become an historiographic clichC that medical history is traditionally written by doctors, about doctors, and for doctors.1 A vast panorama of noted clinicians and startling biological discoveries are conventionally presented with a distinctly Whiggish enthusiasm for "the advance of scientific medicine". In the last two decades, however, this approach, while certainly not superceded, has...
متن کاملMahalanobis’s Fractile Graphs: Some History and New Developments
Mahalanobis’s famous paper on Fractile Graphical Analysis introduced a plethora of new statistical concepts and techniques [see Mahalanobis (1960)]. The method was originally proposed to compare two regression functions. We discuss and re-interpret some of his work, highlighting his contributions and some of the difficulties encountered. We develop a bootstrap based hypothesis test to compare t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Venomous Animals and Toxins including Tropical Diseases
سال: 2008
ISSN: 1678-9199
DOI: 10.1590/s1678-91992008000100003