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Principio di esclusione competitiva o ipotesi di Gause:“due specie che competono per la stessa risorsa nonpossono coesistere all’infinito; una delle due speciedominerà.”LaboratorioNaturaFive species ofwarblers thatMacArthurstudied. Note thesimilarity in sizeand bill shape.
Feeding positions of fivesympatric warblersbased on percentage ofobservations. Shadedzones represent regionswhere at least 50% ofthe activity isconcentrated.
Page 1 and 2: Corsi di Laurea in SFA ed in DISMIT
Page 3 and 4: Parametri di una popolazione:•Den
Page 5 and 6: La grandezza della popolazione può
Page 7 and 8: Rapporto tra i sessi costante♂=
Page 9 and 10: Density-dependent population growth
Page 11 and 12: Examples of Sigmoidal GrowthEsempi
Page 14 and 15: Red Queen DynamicsResults from a co
Page 16 and 17: Populations exist in heterogeneousl
Page 18 and 19: Interazioni interspecificheNessunai
Page 20 and 21: Bufaga africana(Buphagus africanus)
Page 23 and 24: Remora(Echeneisnaucrates)Predazione
Page 25 and 26: Antibiosi e allelopatiaInterazioni
Page 27 and 28: Nicchia ecologicaLa nicchia ecologi
Page 29 and 30: - 3 niche dimensions:Nicchia ecolog
Page 31 and 32: • co-existence- competing can co-
Page 33: Esperimenti di Park (1962)Esperimen
Page 37 and 38: K - strategists• Popolazione aliv
Page 39 and 40: Curve di sopravvivenzaType I -high
Page 42 and 43: Initially ecologists tried toexplai
Page 44: O.N. Bjørnstad, M. Peltonen, A.M.

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