The Vegetation of Robinson Crusoe Island (Isla Masatierra), Juan Fernandez Archipelago, Chile
نویسندگان
چکیده
منابع مشابه
Plant Conservation in the Juan Fernandez Archipelago, Chile
Oceanic archipelagos often hold very specialized floras with high degrees of endemism. These floras are frequently highly vulnerable to disturbance by natural causes and human intervention. The Juan Fernandez Islands (Chile) in the Pacific Ocean are a small archipelago of only three islands. Since discovery in 1574 by Juan Fernandez, human activities have altered floristic composition and survi...
متن کاملBiostratigraphic evidence for dramatic Holocene uplift of Robinson Crusoe Island, Juan Fernández Ridge, SE Pacific Ocean
Hotspot oceanic islands typically experience subsidence due to several processes related to migration of the oceanic plate away from the mantle plume and surface flexural loading. However, many other processes can interrupt subsidence, some of which may be associated with catastrophic events. A study of the biostratigraphy and sedimentology of Holocene deposits on Robinson Crusoe Island (RCI) o...
متن کاملThe Somatic Chromosomes of Sophora jernandeziana ( Fabaceae ) , an Endemic Tree from Robinson Crusoe Island 1
The mitotic chromosome number and karyotype of Sophora fernandeziana (Phil.) Skottsb. (subfamily Papilionoideae) are reported for the first time. The chromosome number, 2n = 18, is the modal number reported for the genus. The chromosomes are small (average length 1.55 ± 0.23 J.1m) and bear no satellites. The intrachromosomal and interchromosomal asymmetry indices were AI = 0.26 and A2 = 0.18, r...
متن کاملChromosome Counts from the Flora of the Juan Fernandez Islands , Chile
Thirty-four chromosome counts are reported from populations in 20 species from Masafuera in the Juan Fernandez Islands, Chile. New species counts are in Abrotanella crassipes (2n = 18), Carpobrotus aequilaterus (n = 9), Coprosma pyrifolia (n = 22), Drimys confertifolia (n = ca. 43), Euphrasia Jormosissima (n = 44), Parietaria debilis (n = 8), and UrticaJernandeziana (n = ca. 11). A new chromoso...
متن کاملInvited Commentary Invited Commentary: Rescuing Robinson Crusoe
Estimating the independent effect of ‘‘place’’ on health outcomes has proven quite difficult. In this issue of the Journal, Auchincloss and Diez Roux contribute a lucid introduction to agent-based simulation models and argue that they may be a fruitful alternative to current approaches to the problem. Insofar as conceptual understanding must precede empirical investigation, this author agrees. ...
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ژورنال
عنوان ژورنال: Pacific Science
سال: 2002
ISSN: 1534-6188
DOI: 10.1353/psc.2002.0022