Ecology: Lecture 4Ecology: Lecture 4

October 5, 2005October 5, 2005

Laysan’s albatross:Laysan’s albatross:Population at Midway I., breeding Population at Midway I., breeding

seasonseason

Photo courtesy of Painet photosPhoto courtesy of Painet photos

Population of overwintering Population of overwintering monarchs in Central Mexicomonarchs in Central Mexico

Photo courtesy of The Journey North sitePhoto courtesy of The Journey North site

Ramets and genets om Ramets and genets om aspen treesaspen trees

Fig. 10.2Fig. 10.2

MetapopulationsMetapopulations

Fig. 10.3Fig. 10.3

Queen conchsQueen conchs

SpatialSpatial patterns of patterns of dispersiondispersion

Fig. 10.4Fig. 10.4

Uniform distribution of Uniform distribution of golden eagle territoriesgolden eagle territories Fig. 10.5Fig. 10.5

Photos courtesy of Paul EhrlichPhotos courtesy of Paul Ehrlich

Euphydryas edithaEuphydryas editha and and its host plant, Plantagoits host plant, Plantago

Populations & metapopulation ofPopulations & metapopulation of Euphydryas edithaEuphydryas editha on Jasper Ridge on Jasper Ridge

Photos and diagram courtesy of Paul EhrlichPhotos and diagram courtesy of Paul Ehrlich

Yearly migrationsYearly migrations

Fig. 10.9Fig. 10.9

Arctic and Antarctic ternsArctic and Antarctic terns

Arctic ternPhoto by Brian Small

Antarctic ternPhoto by Danny Gallant

Arctic tern migrationArctic tern migration

Age structure: Age structure: theoretical age pyramidstheoretical age pyramids Fig. 10.10Fig. 10.10

Effects of missing year class Effects of missing year class in cactus ground finchin cactus ground finch

Fig. 10.11Fig. 10.11