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| − | [[Image:Sierran_Juvenile.jpg|left|thumb|Juvenile ''Plestiodon skiltonianus'']]
| + | {{:Spotlight:Systematics of Green Coccoid Algae}} |
| − | '''Jonathan Richmond''''s research focuses on ecological speciation in North American scincid lizards of the ''Plestiodon skiltonianus'' species complex. Specifically, he is interested in understanding how divergent natural selection has influenced the evolution of reproductive incompatibility among clades that differ in their ecology. Although most classic theories of speciation incorporate a role for natural selection in species formation, remarkably few cases of ecological speciation have been demonstrated in natural systems, and the importance and prevalence of natural selection in the speciation process remains an open ended question.<br>
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| − | [[Ecological Speciation in North American Scincid Lizards|More...]]
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| − | [[Image:Npel-NY.jpg|right|thumb|''Nymphoides peltata'']]
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| − | The aquatic and wetland plant family Menyanthaceae comprises five genera, with species distributed worldwide. Many species in the family, particularly in the genus ''Nymphoides'', are traded in the ornamental aquatic plant trade and consequently have become naturalized outside of their native ranges, with some even considered nuisance weed plants. The research of '''[[Nicholas Tippery]]''' focuses on the evolutionary relationships between genera and species of Menyanthaceae, with respect to both their vegetative and reproductive morphology.<br>
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| − | [[Systematics of Menyanthaceae|More...]]
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Latest revision as of 13:14, 6 November 2008
Bracteacoccus sp. from a desert soil crust
Green algae (Chlorophyta) are a morphologically heterogeneous group that is undergoing considerable revisions at present. Especially in coccoid genera, there have been striking cases of polyphyly, when species originally placed in one genus were shown to belong to up to three different classes. The coccoid chlorophycean genus Bracteacoccus Tereg was until recently considered monophyletic, but with the advent of new molecular data, it no longer appears as such. The goal of Karolina Fučíková's research is to monograph the genus Bracteacoccus. More...
