Comparing the two Greek archipelagos plant species diversity and endemism patterns highlight the importance of isolation and precipitation as biodiversity drivers.

Background: Greece has two island archipelagos, the Aegean and the Ionian, which host a rich array of plants and wildlife, particularly endemic and threatened plant species. Despite the long history of island biogeographic studies in the Aegean, similar studies in the Ionian remain limited, with the two island archipelagos rarely being compared.

Results: The Aegean and Ionian archipelagos share many features, especially regarding total plant diversity, but exhibit different patterns of endemism.

End-stage dementia spark of life: reliability and validity of the "GATOS" questionnaire.

Background: Fl oor effects are present in most dementia assessment tools as dementia progresses and the in-depth assessment of patients considered more or less on vegetative state is questionable.

Objective: To develop a questionnaire (the "Gatos Clinical Test-GCT") for the assessment of end-stage demented patients.

Methods: Five hundred patients with dementia of various causes and an MMSE score between 0 and 2 were enrolled in the study.