Popolazione - ZyXEL NSA210

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Populations exist in heterogeneouslandscapes• Uniform habitats are rare– Many populations are divided into subpopulationsliving in suitable habitat patches• Definitions– Patchy population, Independent populations,Metapopulation• Interaction between subpopulations– Distance– Favorableness of the matrix– Vagility of the species
•Metapopulations are divided intodiscrete subpopulations, whose dynamicsdepend in part on migration ofindividuals between patches.•The dynamics of small populationsdepend to a large degree on stochasticevents.MetapopulationA group of subpopulations of a species living in patchesthat are connected by some movement of individualsamong patches.
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 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 and 34: Esperimenti di Park (1962)Esperimen
Page 35 and 36: Feeding positions of fivesympatric
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.

Popolazione - ZyXEL NSA210

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