Models Of Speciation

Models of Speciation & Macroevolution Mark McGinley Associate Professor Honors College and Department of Biological Sciences Texas Tech University

Allopatric Speciation in Squirrels

Peripatric Speciation ,[object Object],[object Object]

Peripatric Speciation ,[object Object],[object Object],[object Object],[object Object]

Peripatric Speciation ,[object Object],[object Object],[object Object]

Peripatric Speciation ,[object Object]

Parapatric Speciation ,[object Object],[object Object],[object Object]

Parapatric Speciation Anthoxanthum odoratum ,[object Object],[object Object],[object Object]

Parapatric Speciation Anthoxanthum odoratum ,[object Object],[object Object]

Symaptric Speciation ,[object Object],[object Object],[object Object]

Sympatric Speciation ,[object Object]

Apple Maggot Fly Speciation Apple Maggot Fly Apples Hawthorn

Apple Maggot Fly Speciation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sympatric Speciation by Pollinator Switching ,[object Object],[object Object],[object Object],[object Object],[object Object]

Sympatric Speciation ,[object Object],[object Object]

Hybridization ,[object Object],[object Object],[object Object]

Hybridization in Sunflowers- Helianthus

Sympatric Speciation in Gilia

Speciation by ploidy changes ,[object Object],[object Object],[object Object]

Cospeciation ,[object Object],[object Object],[object Object]

Modes of Speciation Review within the range of the ancestral population Sympatric (sym = same, patric = place) a continuously distributed population Parapatric (para = beside, patric = place) a small population isolated at the edge of a larger populatin Peripatric (peri = near, patric = place) geographically isolated populations Allopatric (allo = other, patric = place)

Macroevolution ,[object Object],[object Object]

Geologic Time Scale ,[object Object],[object Object],[object Object]

Geologic Time Scale ,[object Object],[object Object],[object Object],[object Object]

Geologic Time Scales ,[object Object],[object Object],[object Object],[object Object]

Geologic Time Scale ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Radiometric Dating ,[object Object],[object Object],[object Object]

Radiocarbon Dating ,[object Object],[object Object],[object Object],[object Object]

Patterns in Macroevolution- Stasis ,[object Object]

Stasis- Coelocanth ,[object Object]

Character Change ,[object Object]

Lineage Splitting (Speciation)

Extinction ,[object Object],[object Object]

Convergent Evolution ,[object Object],[object Object]

Convergent Evolution ,[object Object]

Parallel Evolution ,[object Object]

Long-term Patterns of Evolution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Long-term Trends in Biodiversity

Long-term Trends in Biodiversity Bivalvles Mammals

Long-term Trends in Biodiversity ,[object Object]

Extinctions ,[object Object],[object Object]

Recent Extinctions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Recent Extinctions ,[object Object],[object Object],[object Object]

Recent Extinctions- Passenger Pigeons ,[object Object],[object Object],[object Object],[object Object],[object Object]

Recent Extinctions- Passenger Pigeons ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Martha

Recent Extinctions ,[object Object],[object Object],Ivory-billed Woodpecker

Recent Extinctions ,[object Object],[object Object],[object Object],Pecos Gambusia Comanche Springs Pupfish

THE SIXTH GREAT EXTINCTION: The Homogeocene ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Rainforests ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Rainforest- Species Extinctions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction of New Species Brown Tree Snake in Guam ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Habitat Loss in Texas ,[object Object],[object Object],[object Object],[object Object],[object Object]

Models Of Speciation

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Models Of Speciation