Slide Set 1 Flashcards
what is biogeography?
the study of distribution of biodiversity over space and time
what is the difference between historical and ecological biogeography?
ecological is present day and a smaller timescale
what are some methods that biogeographers partake in?
field based research, ecophysiology, molecular methods, dendreocology
plate tectonics are?
the rearranging of the planets major land masses on tectonic plates
what are 3 ways the earth has not been static?
- climate has changed
- snowball earth hypotheses
- Cambrian explosion
the Cambrian explosion forms a link to O2 levels and availability of _________
phosphorus
what is needed for complex animal life?
cells must be differentiated and specialized
what did carolus linnaeus do?
developed a scheme for the classification of all life
what were linnaeus ideas about biogeography?
life originated on slopes of a paradisical mountain were adapted to a particular habitat, then they dispersed to occupy the various habitats of the globe
what did Georges louis Leclerc do?
studied living and fossil mammals, hypothesized that life originates in region of northwestern europe during earlier times then migrated into the new world and southern hemisphere
what is the main comparison between linnaeus and buffon?
linnaeus believed organisms spread from mount arat or another low altitude mountain following the great flood and buffon thought life originated in northern europe and spread southward and to the new world
what is Buffons law?
states that environmentally similar but isolated regions have distinct assemblages of mammals and birds
what did sir joseph banks do?
collected plant species on voyage around the world with captain james cook, affirmed and generalized buffons law
what did Johann reinhold foster do?
circumnavigated the globe with cook, developed systematic description of worlds biotic regions, noticed plant diversity decreased by equator and poles
what did karl ludwig willdenow do?
german botanist who described floristic provinces of europe, suggested many sites origin, had a student alexander von humbolt