Popolazione - ZyXEL NSA210

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The most commonly used terms:• Dispersal - a spreading ofindividuals away from others• Migration - a mass directionalmovement of large numbers of aspecies, from one location toanotherWhat’s the difference between them?• Both dispersal and migration are defined forgroups of organisms• BUT… only individuals disperse• Dispersing organisms often have no controlover their fate• Migrating organisms are going somewhere!
Rapporto tra i sessi costante♂=♀Density-independent independent population growth(Crescita geometrica)Caso di generazioni distinte, ciclo normaleR 0 è la velocità finale diriproduzione ovvero ilnumero di prole femminileprodotta per femmina pergenerazioneN t+1= R 0 N t
Page 1 and 2: Corsi di Laurea in SFA ed in DISMIT
Page 3 and 4: Parametri di una popolazione:•Den
Page 5: La grandezza della popolazione può
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 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.

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