PPT-Speciation of

14 C in Irradiated Graphite Mary Lou DunzikGougar Idaho State University and Idaho National Laboratory INGSM14 Seattle WA USA September 2013 Due recognition of student researchers consultants and startup funding. Vaccinium. . macrocarpon. ). Brandon . Schlautman. What is a species?. Domain- . Eukarya. Kingdom- Plantae. Phylum- . Magnoliophyta. Class- . Magnoliopsida. Order- . Ericales. Family- . Ericaceae. Is a member of the . What is a Species?. Speciation. – the origin of new species. The . biological species concept. defines a species as a population or group of populations whose members have the potential to interbreed with one another in nature to produce viable, fertile offspring, but who cannot produce viable, fertile offspring with members of other species. 8.7. Starter. What is speciation?. The evolution of new species from existing species.. Learning Objectives. Define speciation. Describe geographical isolation. Explain how geographical isolation can lead to the formation of new species. The rise and fall of biodiversity. Four major . mass extinctions . of marine organisms:. End of Silurian Devonian, Permian, and Cretaceous). Rise in diversity during Cambrian, Silurian, Cretaceous, and Paleogene. Evolution. Results of evolution. New species (speciation). Causes of evolution. Barriers between same species (gene pools). Geographical isolation -> leads to . allopatric. speciation. Temporal isolation -> leads to sympatric speciation. EVOLUTION #1 (Group 3). Strawberry Frogs Forever. Participants: Lin Xiang. Ingo . Schlupp. Tiffany Roberts. Anne . Grippo. Jerry Farris. Facilitators: Brooke . Brian O. ’. Meara. EEB464 Fall . 2015. http://www.youtube.com/watch?v=lopTMhAbXoI. Initiation of speciation. Maintenance of current species. Prezygotic. Postzygotic. Zygote image © Laboratoire de Biologie de la Reproduction; Lausanne, image downloaded from . The rise and fall of biodiversity. Four major mass extinctions of marine organisms:. End of Silurian Devonian, Permian, and Cretaceous). Rise in diversity during Cambrian, Silurian, Cretaceous, and Paleogene. Species. == “kind” or “type” in Latin. Typological . (morphological) species. . == a group of organisms that share certain characteristics which are different than other groups—usually differences in anatomy. . Temporal – crickets mature at different times. Prezygotic. isolation. Habitat – land vs. water garter snakes. Prezygotic. isolation. Behavioral – firefly mating. Prezygotic. isolation. Gametic. Sympatric Speciation. Sympatric Speciation occurs . without. geographic isolation, thus it occurs at a local level. . There is something within the environment that keeps a single species separated into two or more distinct groups.. Reduction in . gene . flow, genetic and phenotypic change in populations. The study of speciation requires that species be real. Speciation. Speciation is the antidote to sex. Keeps together adaptive groups of traits. I. Species Definitions. Species represent the boundary for the spread of alleles . and define the unit in which the modes of evolution operate. Biological Species Concept. Individuals belong to the same species if they can interbreed with each other. After reading this module you should be able to. Explain . the processes of allopatric and sympatric speciation.. U. nderstand . the factors that affect the pace of . evolution.. Speciation can be allopatric or sympatric.