linkedin post 2017-10-26 05:18:30
Is sexual dimorphism an occult type of speciation with different evolutionary trajectories?" "https://lnkd.in/gBNnsJm View in LinkedIn
linkedin post 2017-10-26 05:15:54
SEX AS SPECIATION? "Therefore, when separate sexes evolve, constraints to gender specialization are relieved and the establishment of unisexuality is expected to be associated with sex-specific adaptation, particularly in reproductive traits." https://lnkd.in/ge7JD6J View in LinkedIn
linkedin post 2017-10-26 05:13:14
BRANCHED ROAD. "When dioecy evolves from hermaphroditism, females and males are expected to diverge and specialize to their respective unisexual conditions. This is because hermaphroditic plants cannot be simultaneously optimized for both female and male function." https://lnkd.in/ge7JD6J View in LinkedIn
linkedin post 2017-10-26 05:10:23
CONUNDRUM. "Among dioecious flowering plants, females and males often differ in a range of morphological, physiological, and life-history traits. This is referred to as sexual dimorphism, and understanding why it occurs is a central question in evolutionary biology." https://lnkd.in/ge7JD6J View in LinkedIn
linkedin post 2017-10-26 05:08:50
LATEST VERSION. "Sexuality in plants is regulated by genetic, epigenetic and physiological mechanisms. The most specialized mechanism of sex determination is sex chromosomes." https://lnkd.in/g2Bsw9g View in LinkedIn
linkedin post 2017-10-26 05:06:33
POROUS BORDER. "Unisexuality in flowering plants evolved from a hermaphrodite ancestor. Transition from hermaphrodite to unisexual flowers has occurred multiple times across the different lineages of the angiosperms." https://lnkd.in/g2Bsw9g View in LinkedIn
linkedin post 2017-10-29 05:24:27
PRE- AND POST-PLAGUE. “Given that the mortality associated with the Black Death was extraordinarily high and selective, the medieval epidemic might have powerfully shaped patterns of health and demography in the surviving population, producing a post-Black Death population that differed in many significant ways, at least over the short term, from the population that existed just before the epidemic.” https://lnkd.in/g2FqTm7 View in LinkedIn
linkedin post 2017-10-28 04:08:04
SONG OF DARWIN. "The more I study nature, the more I become impressed […] that the contrivances and beautiful adaptations [acquired through natural selection] transcend in an incomparable degree [those] which the most fertile imagination of the most imaginative man could suggest with unlimited time at his disposal." https://lnkd.in/eykUy37 View in LinkedIn
linkedin post 2017-10-29 05:21:36
POSITIVE IMPACT OF DEPOPULATION. “With as much as half of the population dead, survivors in the post-plague era had more resources available to them. Historical documentation records an improvement in diet, especially among the poor.” https://lnkd.in/ggGWR4A View in LinkedIn
linkedin post 2017-10-28 04:01:59
FRAGMENT FROM NATURE offers an historical snapshot of the rat flea derived bacterial bubonic plague that halved the European, Asian and African population in the mid-fourteenth century. It still exists today, and can be treated with antibiotics, with a 1-15% mortality rate. The Black Death had very profound social and cultural impacts on European society. It also partially protected the surviving population against later outbreaks. View in LinkedIn