An Example (Diatoms) - Characteristics Eukaryotic "Regular" evolutionary processes Evolve very rapidly Endemic floras in ancient lakes Widely distributed pan-boreal flora - Primary producers First in line for ecological insults - Widely distributed All habitats where free water exists, even periodically - Large number of species Ca. 60,000 described On the order of 106 estimated - Large number of individuals easily collectable Possibility of doing justifiable statistics - Mineralized cell walls Easily preserved Easily curated Easily identified (compared to most microorganisms) Excellent fossil record for Tertiary, Quaternary and Recent Widely used in reconstructive studies Acid rain Eutrophication Climate change - History - Ca. 1650 -1800 Discovery with first light microscopes - Ca. 1800 - 1900 Grand period of growth Cutting edge science Many dynamic researchers Privately wealthy Supported by Royal Academies Virtually no university support Little formal training - Ca. 1900 - 1950 Period of regression Few, mostly self-trained, researchers Mostly supported by ecological concerns Some agency support for applied studies Virtually no University involvement Very few formally trained researchers Amateur tradition in U. S.
(justifiable statistics - Mineralized cell walls; Easily preserved; ) (researchers; Mostly supported; by ecological concerns) (free water; exists; L:All habitats) (1800 - 1900 Grand period of growth; Supported; by Royal Academies) (Easily curated Easily; identified; ) (even periodically - Large number of species Ca; described; On the order of 106 estimated - Large number of individuals) Context(even periodically - Large number of species Ca described,List([287, 351))):(Widely distributed pan-boreal flora - Primary producers; Widely distributed; All habitats where free water exists) Context(even periodically - Large number of species Ca described,List([287, 351))):(Excellent fossil record for Tertiary, Quaternary and Recent; Widely used; L:in reconstructive studies)
even periodically - Large number of species Ca described,List([287, 351)) even periodically - Large number of species Ca described,List([287, 351))
justifiable statistics - Mineralized cell walls researchers free water 1800 - 1900 Grand period of growth Easily curated Easily even periodically - Large number of species Ca Widely distributed pan-boreal flora - Primary producers Excellent fossil record for Tertiary, Quaternary and Recent
Easily preserved Mostly supported exists Supported identified described Widely distributed Widely used
by ecological concerns
L:All habitats
by Royal Academies
On the order of 106 estimated - Large number of individuals
All habitats where free water exists
L:in reconstructive studies