Results 51 to 60 of about 1,448,748 (289)
HYBRID ZONES AND REPRODUCTIVE ISOLATION [PDF]
Evolution, 1965 The interpretation of hybrid zones remains one of the most difficult of taxonomic problems, despite the striking advances in systematics of recent decades. Mayr (1963: 496) selected sexual isolation, hybrid fertility, and developmental compatibility as the only criteria that will render possible unequivocal decisions (one species or two) in the case of
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Adaptation to a seasonally varying environment: a strong latitudinal cline in reproductive diapause combined with high gene flow in Drosophila montana [PDF]
, 2011 Adaptation to seasonal changes in the northern hemisphere includes an ability to predict the forthcoming cold season from gradual changes in environmental cues early enough to prepare for the harsh winter conditions. The magnitude and speed of changes in
Knott, Emily +11 more
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DYNAMIC SPECIATION PROCESSES IN THE MEDITERRANEAN ORCHID GENUS OPHRYS L. (ORCHIDACEAE) [PDF]
, 2011 GENERAL INTRODUCTION CHAPTER 1: MULTI-LOCUS NUCLEAR GENE PHYLOGENY OF THE SEXUALLY DECEPTIVE ORCHID GENUS OPHRYS L. (ORCHIDACEAE) CHAPTER 2: ANALYSIS OF VARIATION AND SPECIATION IN THE OPHRYS SPHEGODES SPECIES COMPLEX CHAPTER 3: FLORAL ISOLATION IS ...
Breitkopf, Hendrik
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Persistent postmating, prezygotic reproductive isolation between populations [PDF]
, 2018 Studying reproductive barriers between populations of the same species is critical to understand how speciation may proceed. Growing evidence suggests postmating, prezygotic (PMPZ) reproductive barriers play an important role in the evolution of early ...
Snook, R.R. +5 more
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Assisted reproductive technology in the USA: is more regulation needed? [PDF]
, 2014 The regulation of assisted reproductive technologies is a contested area. Some jurisdictions, such as the UK and a number of Australian states, have comprehensive regulation of most aspects of assisted reproductive technologies; others, such as the USA ...
Frith, Lucy; id_orcid +2 more
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Neo-Allopatry and Rapid Reproductive Isolation
The American Naturalist, 2012 Over the past 3 centuries, many species have been dispersed beyond their natural geographic limits by humans, but to our knowledge, reproductive isolation has not been demonstrated for such neo-allopatric species. We grew seeds from three species of Centaurea (Centaurea solstitialis, Centaurea calcitrapa, and Centaurea sulphurea) that are native to ...
Montesinos, Daniel +2 more
openaire +4 more sources
, 2013 Data and formulas used for the calculation of the reproductive isolation ...
Scopece, Giovanni +7 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider +15 more
wiley +1 more source
Data on reproductive isolation
, 2017 Data for each female from the six populations for the Reproductive Isolation measure, number of seeds produced from base pollinations, and whether the male was from the same or a different population as the individual ...
Brothers, Amanda N, Delph, Lynda F.
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom +15 more
wiley +1 more source