《生态学》课程PPT教学课件（生态学原理与应用）02 Natural History - 1/2

Ecology:Concepts and ApplicationsNaturallHistoryOne touch of natural makesthe whole world kin.------William Shakespeare

Ecology:Concepts and Applications “One touch of natural makes the whole world kin.” -William Shakespeare Natural History

Ecology:Concepts and ApplicationsLandLife on

Ecology:Concepts and Applications Life on Land

Ecology:ConceptsandApplicationsNaturalhistonyEnterolobium cyclocarpum & its dispersers: Astory of a guanacaste tree

Ecology:Concepts and Applications Natural history Enterolobium cyclocarpum & its dispersers: A story of a guanacaste tree

Ecology:Concepts and ApplicationsTropical dry forestThefruits of the treeshould promoted seedGuanacaste treedispersal by animalsrHypothesisDaniel JanzenGuanacasteNationalPark, CostaRicaTheguanacastetree,EnterolobiumcyclocarpumgrowingFIGURE2.IinCosfa Rica

Ecology:Concepts and Applications Guanacaste National Park, Costa Rica Daniel Janzen Tropical dry forest Guanacaste tree Fruits Hypothesis The fruits of the tree should promoted seed dispersal by animals

Ecologv:Conceptsand ApplicationsSeed dispersalGuanacastetreeinfruitHerbivoresNatural history10,000 yearsago,extinctionBioculturalrestorationFallenGuanacastefruitseedlingExistingExtinctfeedingfeedingrelationrelationOTDung withPresent-daydisperserExtinct disperserintact seeds(e.g.,horses,andcatle)(e.g-camel)FICURE2.2Dispersersofguanacaste seeds-past and presen

Ecology:Concepts and Applications Seed dispersal Herbivores Natural history 10,000 years ago, extinction Biocultural restoration

Ecology:Conceptsand ApplicationsTerrestrial Biomes

Ecology:Concepts and Applications Terrestrial Biomes

Ecology:ConceptsandApplicationsNaturalhistonSoil: the foundation of terrestrial biomes

Ecology:Concepts and Applications Natural history Soil: the foundation of terrestrial biomes

Ecology:ConceptsandApplicationsNatural histonSoil horizonsOrganichonizon.Upperlayrontainsoose.somewhatfragmentedplantlitterLitter in lower layer is highly frnagmentedMinernalsoilmixed withsomeorganicaClalumaand solubleorganicmatterare grafuallyleachedfromAhonzonDeusitional honzonMatennksleachedfromAhorizonaredepasitedimBbonizunBDepesitsmayfom distinctbanding partentWeahtmateeomay includemany nek fragmentstoften lies on heufrakFIGURE23Geraliedoilpofilesowing.AndChogos

Ecology:Concepts and Applications Natural history O C B A

Ecology:Concepts andApplicationsNaturalhistonyCASE HISTORIES:Large-scale patterns of climatic variation

Ecology:Concepts and Applications Natural history CASE HISTORIES: Large-scale patterns of climatic variation

Ecology:ConceptsandApplicationsNaturalhistonUneven sphericalheating of theearth'ssurface by the sun and the tilt of the earth onitsaxiscombinepredictableproducetolatitudinal variation in climate

Ecology:Concepts and Applications Natural history Uneven heating of the earth’s spherical surface by the sun and the tilt of the earth on its axis combine to produce predictable latitudinal variation in climate