Distribution Patterns of some Greek Mountain Endemic Plants in Relation to Geological Substrate

Papanicolaou, Kostas; Babalonas, D.; Kokkini, Stella

doi:10.1016/s0367-2530(17)31399-3

Cited by 10 publications

(8 citation statements)

References 4 publications

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“…, 2001) while the closely related Neoguillauminia , an endemic genus, is restricted to ultramafics. This is a common pattern; plant taxa known only from ultramafic rock and limestone occur in Tuscany (Selvi, 2007), the Balkan Peninsula (Papanicolaou et al. , 1983; Stevanović et al.…”

Section: Discussionmentioning

confidence: 98%

Panbiogeography of New Caledonia, south‐west Pacific: basal angiosperms on basement terranes, ultramafic endemics inherited from volcanic island arcs and old taxa endemic to young islands

Heads¹

2008

Journal of Biogeography

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Section: Discussionmentioning

confidence: 98%

Panbiogeography of New Caledonia, south‐west Pacific: basal angiosperms on basement terranes, ultramafic endemics inherited from volcanic island arcs and old taxa endemic to young islands

Heads¹

2008

Journal of Biogeography

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“…This probably represents the richest concentration of limestone endemics in the world. Ninety taxa endemic to limestone in the Greek mountains have been recorded by Papanicolaou et al (1983), although no density values were provided for comparison. The presence of closely related endemics, or vicariads (sensu Rourke, 1972), occurring on limestone and non-limestone soil types, paticularly in the Agulhas Plain, indicates that edaphic factors are a major force in speciation (Cowling et al, 1992).…”

Section: Discussionmentioning

confidence: 99%

Patterns of endemism in the limestone flora of South African lowland fynbos

1996

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Taxonomic and biological aspects of endemism and Red Data Book status were studied amongst the limestone endemics of the lowland fynbos in the Cape Floristic Region, South Africa. Of the 110 limestone endemics, 1.8% are widely distributed in the Cape Floristic Region and 56.4% are regional endemics. Relative to flora of non-limestone lowland fynbos (n = 538 species), the families which were overrepresented in terms of limestone endemics included the Ericaceae, Fabaceae, Polygalaceae, Rutaceae and Sterculiaceae. The Restionaceae was the only underrepresented family. The local limestone endemics were not significantly different from regional endemics in terms of their biological attributes. An analysis of the frequency of the biological traits associated with the limestone-endemic flora established a biological profile for a limestone endemic: a dwarf-to-low shrub with soil-stored seeds which are ant or wind dispersed. In terms of the species richness of limestone endemics, the De Hoop Nature Reserve was the 'hotspot' within the region. Relative to the total species richness, the Hagelkraal and Stilbaai areas contained higher-than-predicted numbers of rare species. These areas require urgent attention if the unique floral diversity associated with limestone substrata within the Bredasdorp-Riversdale centre of endemism is to be conserved.

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“…Many endemic and rare species are habitat specialists (Raven, 1964;Hedberg, 1965;Papanicolaou et al, 1983;Baskin and Baskin, 1988;Linder et af., 1993). Studies in a lowland area to the south east of the Peninsula, on the Agulhas Plain, have shown a high degree of edaphic specificity among endemics.…”

Section: Habitat and Biology In Relation To Threatsmentioning

confidence: 99%

Profiling a besieged flora: endemic and threatened plants of the Cape Peninsula, South Africa

1996

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The Cape Peninsula (area: 471 km*), situated at the south-western extremity of the Cape Ploristic Region, has exceptionally high plant species richness (2285 species and infraspecific taxa) and numbers of endemic (90; 88 species and two infraspecific) and threatened (141; 138 species and three infraspecific) taxa (termed species from here on). This biodiversity is threatened by urban development and the spread of invasive alien plants. Peninsula endemics are concentrated in a few, predominantly species-rich families and these correspond well with endemic-rich families in other areas of the Cape Floristic Region. A high level of similarity exists between families with threatened and families with endemic species. A frequency analysis of the biological traits of both endemic and threatened species shows that low growing, ant-dispersed shrubs are over-represented in both groups. Endemics are most likely to be non-sprouters, but threatened plants do not have a specific post-fire regeneration strategy. Threatened species have higher frequencies of geophytes, sprouters and wind-dispersed species compared to endemic species. Numbers of endemic and threatened species are not randomly distributed with regard to occurrence in vegetation types and patterns are similar for both groups. The habitat and biological profiles of both endemic and threatened species suggest that they are highly vulnerable to extinction as a result of increasing rates of alien plant infestation, urbanization and inappropriate fire regimes.

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Distribution Patterns of some Greek Mountain Endemic Plants in Relation to Geological Substrate

Cited by 10 publications

References 4 publications

Panbiogeography of New Caledonia, south‐west Pacific: basal angiosperms on basement terranes, ultramafic endemics inherited from volcanic island arcs and old taxa endemic to young islands

Panbiogeography of New Caledonia, south‐west Pacific: basal angiosperms on basement terranes, ultramafic endemics inherited from volcanic island arcs and old taxa endemic to young islands

Patterns of endemism in the limestone flora of South African lowland fynbos

Profiling a besieged flora: endemic and threatened plants of the Cape Peninsula, South Africa

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