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Class Notes (1,044,500)
AUS (35,215)
UniMelb (5,189)
GEOG (107)
GEOG20009 (21)

Class Notes for GEOG20009 at University of Melbourne

Landscapes and Diversity

GEOG20009 Lecture Notes - Lecture 21: Great Artesian Basin, Abrupt Climate Change, Central Australia

LECTURE 21: GONDWANA TO ANTHROPOCENE EVOLUTION ON AN ISLAND CONTINENT Modern Australian flora had origin in Gondwana particularly ferns gymnosperms Tectonically stable after 90Ma highly leached, deep weathering soil profi...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 18: Allopatric Speciation, Ocean Current, Ratite

LECTURE 18: DIVERSIFICATION REGIONALISATION cont. Geographic patterns must show some information of evolutionlink to the past Biogeographic regions indicate the pervasive influence of geography, geology and climate on the...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 17: Ecoregion, Allopatric Speciation

LECTURE 17: DIVERSIFICATION REGIONALISATION Perspectives on patterns of life: o History of place OR (changes in geography, geology, climate, environments extrinsic to organisms, biota) o History of lineage (series of chan...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 12: Seed Dispersal, Fertile Crescent, Lichen

LECTURE 12: DISPERSAL AND IMMIGRATION Relative importance of longdistance dispersal events vs vicariance (population splitting events) Darwin v Lyell Vicariance: geographic range of a taxa is split into parts by the format...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 13: Allele Frequency, Extinction Event, Genetic Drift

LECTURE 13: SPECIATION AND EXTINCTION Species: a basic unit of biological classification and a taxonomic rank The fundamental unit of biogeography is the geographic range of a species Speciation: branching event, leading t...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture 16: Lecture 16 Detailed Notes Landscapes & Diversity GEOG 20009

LECTURE 16: KARST LANDSCAPE AND BIODIVERSITY KARST LANDSCAPES PreProcess Karst: a landscape formed largely by dissolution of soluble rocks 3 preconditions for karst formation (karstification): Limestone is usually formed i...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture 15: Lecture 15 Detailed Notes Landscapes & Diversity GEOG 20009

LECTURE 15: LANDFORMS AND SOILS Tectonics: formation of topography endogenic (Earth interior driven) processes o Volcanism o Uplift at convergent plate boundaries Exogenic (external climate) and endogenic (internal tectoni...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 20: Homo Habilis, Canine Tooth, Pelvimetry

LECTURE 20: HUMAN EVOLUTION Palaeoanthropology: study of ancient man What makes us human? Biology and culture Bipedalism Omnivory Large brain relative to body size Environmental manipulation Symbolic expression: art, ritua...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 11: Keystone Species, Seagrass, Ecosystem Services

LECTURE 11: COMMUNITIES, BIOMES, ECOSYSTEMS cont. FOOD WEBS Food webs and keystone species: keystone species are a plant or animal that play a unique crucial role in ecosystem functions o Without them, food webs and ecosys...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 14: Milankovitch Cycles, Plate Tectonics, Continental Drift

LECTURE 14 (p.1): PLATE TECTONICS AND EARTH HISTORY Continental drift: Wegner proposed idea that the continents had moved other time, based on evidence from many disciplines Crust: upper layer of the Earth floats on top of...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 19: Topographic Isolation, Ecological Niche, Biogeography

LECTURE 19: ISLAND BIOGEOGRAPHY Topics ISLAND TYPES Islands are a natural laboratory for biogeography Islands importance and types Islands: any piece of subcontinental land surrounded by water (not size related) Evolutiona...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 9: Competitive Exclusion Principle, Ecological Niche, Biological Dispersal

LECTURE 9: SPECIES COEXISTANCE How do individual pairs of species manage to coexist in same environment when they are competing for resources (food, habitat)? Questions What do we mean by ECOLOGICAL NICHE species coexisten...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture 2: Lecture 2 Detailed Notes Landscapes & Diversity GEOG 20009

LECTURE 2: REGIONAL V LOCAL POOLS INTRODUCTION TO FIRST 3 RD OF LECTURES ECOLOGICAL BIOGEOGRAPHY Ecological Biogeography: examines ecological theories that explain the proximate (operating now) drivers of diversity in time...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 10: Carrying Capacity, Chemosynthesis, Chlorophyll

LECTURE 10: COMMUNITIES, BIOMES, ECOSYSTEMS Conditions that support life: o Liquid medium (water) environment where chemical reactions take place) Topics o Matter (atoms O, C, H) for chemical reactions Energy consideration...

Geography
GEOG20009
Barbara Downes
GEOG20009 Lecture Notes - Lecture 5: Fractal Dimension, Measuring Instrument, Species Richness

LECTURE 5: HABITAT COMPLEXITY AND DIVERSITY RECAP: Limits to local diversity: dispersal constraints, environmental conditions at localities, Topics new species unable to invade established community Environmental heteroge...

Geography
GEOG20009
Barbara Downes

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