Life, death and fossilization on Gran Canaria â implications for Macaronesian biogeography and molecular dating
نویسندگان
چکیده
منابع مشابه
Epidemiology of tuberculosis on Gran Canaria: a 4 year population study using traditional and molecular approaches.
BACKGROUND In recent years several population based studies using restriction fragment length polymorphism (RFLP) analysis have shown a higher rate of recent transmission of tuberculosis than previously thought. This study was undertaken to determine the transmission patterns of tuberculosis and the potential causes of recent transmission on the island of Gran Canaria (Spain). METHODS The str...
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The genus Nyctiphanes (Malacostraca, Euphausiacea) comprises four neritic species that display antitropical geographic distribution in the PaciWc (N. simplex and N. australis) and Atlantic (N. couchii and N. capensis) Oceans. We studied the origin of this distribution applying methods for phylogenetic reconstruction and molecular dating of nodes using a Bayesian MCMC analysis and the DNA sequen...
متن کاملMolecular dating and biogeography of fig-pollinating wasps.
Figs and fig-pollinating wasps are obligate mutualists that have coevolved for over 60 million years. But when and where did pollinating fig wasps (Agaonidae) originate? Some studies suggest that agaonids arose in the Late Cretaceous and the current distribution of fig-wasp faunas can be explained by the break-up of the Gondwanan landmass. However, recent molecular-dating studies suggest diverg...
متن کاملReconstructing Holocene vegetation on the island of Gran Canaria before and after human colonization
We provide the first fossil pollen and charcoal analysis from the island of Gran Canaria (Canary Islands). The pollen record obtained from Laguna de Valleseco (870 m a.s.l.) spans the late Holocene (c. 4500–1500 cal. yr BP) and thereby captures the impact of human colonization. During the earliest period, pollen composition resembled contemporary thermophilous communities, with palms (Phoenix c...
متن کاملHelminth-related Eosinophilia in African Immigrants, Gran Canaria
Of 788 recent African adult immigrants to Las Palmas de Gran Canaria, 213 (27.0%) had eosinophilia. The most frequent causes were filariasis (29.4%), schistosomiasis (17.2%), and hookworm infection (16.8%). Stool microscopy and filarial and schistosomal serologic tests gave the highest diagnostic yield. Country of origin and eosinophil count were associated with specific diagnoses.
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ژورنال
عنوان ژورنال: Journal of Biogeography
سال: 2009
ISSN: 0305-0270,1365-2699
DOI: 10.1111/j.1365-2699.2009.02222.x