Adaptation ; Biogéographie ; Biologie ; Dynamique des populations ; Ecosystème ; Eruption volcanique ; Espèce animale ; Hawaii ; Ile ; Indonésie ; Volcanisme
Adaptation ; Biogeography ; Biology ; Ecosystem ; Hawaii ; Indonesia ; Island ; Population dynamics ; Volcanic eruption ; Volcanism
Consideration is given to the case of a daughter population of a sexual species that becomes successfully established in an area previously lacking that species, as has occurred recently in the Krakataus. Growing shield volcanoes in particular show
Drosophila silvestris on the island of Hawaii. The relevance of such genetic shifts to population structure and evolutionary change in populations is discussed, emphasizing the probable role of meta-population structure.
Biote ; Dynamique des populations ; Ecosystème ; Eruption volcanique ; Hawaii ; Ile ; Indonésie ; Volcanisme ; Végétation
Biota ; Ecosystem ; Hawaii ; Indonesia ; Island ; Population dynamics ; Vegetation ; Volcanic eruption ; Volcanism
space puts restriction on population sizes, and time, together with isolation, is setting limits on the evolution of diversity. The paper gives examples by comparing vegetation processes in the Krakatau islands with those in Hawaii.
Biogeography ; Ecology ; Fauna ; Human impact ; Indonesia ; Island ; Population dynamics ; Volcanic eruption ; Volcanism
80 species of non-marine, non-migrant vertebrates, excluding also shore birds, have been recorded from the Krakatau archipelago since the explosive eruption of 1883. 73 of these are believed to have established breeding populations and successfully