SERPENTINE ENDEMISM IN THE CALIFORNIA FLORA: A DATABASE OF SERPENTINE AFFINITY
نویسندگان
چکیده
منابع مشابه
Origins and consequences of serpentine endemism in the California flora.
Habitat specialization plays an important role in the creation and loss of biodiversity over ecological and evolutionary time scales. In California, serpentine soils have a distinctive flora, with 246 serpentine habitat specialists (i.e., endemics). Using molecular phylogenies for 23 genera containing 784 taxa and 51 endemics, we infer few transitions out of the endemic state, which is shown by...
متن کاملHigh b diversity in the flora of Californian serpentine ‘ islands
Identification of global biodiversity hotspots is a leading conservation priority (Mittermayer et al. (1999) Hotspots. Conservation International, Washington, DC; Stein et al. (2000) Precious Heritage: The Status of Biodiversity in the United States. Oxford University Press, Oxford, UK), but we know little about the nature and structure of such hotspots. Botanical richness in one recently ident...
متن کاملSpecies richness and endemism in the native flora of California.
PREMISE OF THE STUDY California's vascular flora is the most diverse and threatened in temperate North America. Previous studies of spatial patterns of Californian plant diversity have been limited by traditional metrics, non-uniform geographic units, and distributional data derived from floristic descriptions for only a subset of species. METHODS We revisited patterns of sampling intensity, ...
متن کاملSpecies richness, endemism and abundance patterns: tests of two fractal models in a serpentine grassland
Jessica L. Green*, John Harte and Annette Ostling Department of Environmental Science and Policy, University of California, One Shields Avenue, Davis, CA 95616, USA Energy and Resources Group, University of California, Berkeley, CA 94720, USA *Correspondence: E-mail: [email protected] Abstract Although scaling relationships that characterize fractal species distributions offer an exciting pot...
متن کاملInvasion in a diversity hotspot: exotic cover and native richness in the Californian serpentine flora.
Exotic species have been observed to be more prevalent in sites where the richness of native species is highest, possibly reflecting variation among sites in resources, propagule supply, heterogeneity, or disturbance. However, such a pattern leaves unclear whether natives at species-rich sites are subject to especially severe impacts from exotics as a result. We considered this question using p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Madroño
سال: 2005
ISSN: 0024-9637
DOI: 10.3120/0024-9637(2005)52[222:seitcf]2.0.co;2