The Hybantho durae-Anogeissetum dhofaricae ass. nova - phytosociology, structure and ecology of an endemic South Arabian forest community

Kürschner, Harald; Hein, Peter; Kilian, Norbert; Hubaishan, Mohammad A.

doi:10.1127/0340-269x/2004/0034-0569

Cited by 37 publications

(55 citation statements)

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“…Best known are the ancient fog harvesting systems of the Atacama desert in Chile and Peru which use water for irrigation of field crops (Fessehaye et al, 2014), and natural dew collection in desert ecosystems in the Negev of Israel (Kidron et al, 2002). Similarly impressive are the Indian Summer Monsoon-dependent Anogeissus dhofarica (Combretaceae) forests in Dhofar region of southern Oman and Yemen (El-Sheikh, 2013;Hildebrandt and Eltahir, 2006;Kürschner et al, 2004). Dew may also play a role in maintaining plant water status through foliar uptake of moisture, which has been documented for several species in arid and humid environments (Goldsmith et al, 2013;, as well as in the reduction of transpiration rates in early morning hours (Ben-Asher et al, 2010;Raman et al, 1973;Richards, 2004).…”

Section: Introductionmentioning

confidence: 98%

Dewfall and its ecological significance in semi-arid coastal south-western Madagascar

Hanisch

Lohrey

Buerkert

2015

Journal of Arid Environments

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Section: Introductionmentioning

confidence: 98%

Dewfall and its ecological significance in semi-arid coastal south-western Madagascar

Hanisch

Lohrey

Buerkert

2015

Journal of Arid Environments

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“…The species is so far only known from the easternmost part of the governorate of Al‐Mahra, southeast Yemen, where it has been collected in the sea‐facing escarpments of the coastal mountains from the foothills little above sea level to altitudes of up to 1200 m a.s.l. The escarpments of the central south coast of the Arabian Peninsula are regularly affected in summer by the southwest monsoon and therefore shelter luxurious semideciduous forest and woodlands, predominantly of the endemic Hybantho durae–Anogeissetum dhofaricae association (Kürschner et al 2004). Dicoma chatanensis, however, was found growing in rather open, rocky places, below or, more frequently, above the Anogeissus dhofarica forest, preferably at the foot or in crevices of rock faces.…”

Section: Dicoma Chatanensis N Kilian Sp Nov (Fig 1)mentioning

confidence: 99%

Dicoma chatanensissp. nov. (Compositae) from Yemen, and notes on the other species of Dicomeae on the Arabian Peninsula and Socotra

Kilian¹

2010

Nordic Journal of Botany

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Three species of Dicoma and one of the newly re‐established segregate genus Macledium (Dicomeae) are recognized on the Arabian Peninsula and Socotra. The (sub)shrubby Dicoma chatanensis N. Kilian sp. nov. with affinities especially to D. aethiopica from southwest Ethiopia, is described from open habitats of the sea‐facing escarpments of Jabal Chatan in east Al‐Mahra, Yemen. Based on additional material, D. schimperi subsp. cinerea is reconsidered to have a disjunct distribution in north Somalia and southeast Yemen, in the latter region replacing subsp. schimperi. Dicoma tomentosa is very rare in the area and known only from southwest Saudi Arabia, north Yemen and, as a rare weed, from Socotra. The common description and illustration (under Dicoma) of the flowers of the Socotran endemic Macledium canum with lobes rolled backwards spirally is confirmed to be erroneous and a lectotype is designated for the basionym. A key to the four species is provided.

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“…The distribution and composition of the Arabian flora have been strongly influenced by geological and climatological events. On the one hand, until 10–15 Mya (Tertiary, Miocene), when the Arabian micro‐plate was separated from the African one by the rift of the Red Sea (Ghazanfar, 1999; Meulenkamp & Sissingh, 2003; Kürschner et al. , 2004), plant migrations of the African and Asian elements of the Mesogean flora across the Arabian Peninsula from the Ethiopian, Palaearctic, and Oriental regions were still possible (Fisher et al.…”

Section: Introductionmentioning

confidence: 99%

“…, 2004), plant migrations of the African and Asian elements of the Mesogean flora across the Arabian Peninsula from the Ethiopian, Palaearctic, and Oriental regions were still possible (Fisher et al. , 1998; Kürschner et al. , 2004).…”

Section: Introductionmentioning

confidence: 99%

Genetic structure of Anogeissus dhofarica (Combretaceae) populations endemic to the monsoonal fog oases of the southern Arabian Peninsula

Oberprieler¹,

Meister²,

Schneider³

et al. 2009

Biological Journal of the Linnean Society

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Anogeissus dhofarica (Combretaceae) is an endemic tree of the monsoon affected coastal mountains of the southern Arabian Peninsula, being the character species of the Hybantho durae-Anogeissetum dhofaricae association, a drought deciduous, monsoon forest community found only in the Dhofar region of southern Oman and the eastern Al-Mahra region of south-east Yemen. Due to the steep precipitation gradient from the centre to the edges in this monsoon affected area, A. dhofarica is found in two different habitat types: in continuous woodland belts of the Hawf and Dhofar mountains, and in isolated, scattered woodland patches, as found especially in the Fartak Mts (south-east Yemen). Fifteen populations (212 individuals) from across the whole distribution area of the species were analysed using amplified fragment length polymorphism fingerprinting to: (1) evaluate the consequences of population fragmentation on the genetic diversity harboured in isolated patches versus cohering stands of the species and (2) to reconstruct the phylogeographical pattern of A. dhofarica as a consequence of oscillations in the monsoon activity during the Pleistocene and Holocene. The analysis of among-population genetic differentiation and within-population genetic diversity in A. dhofarica populations resulted in a lack of genetic pauperization and genetic differentiation of populations of the distinctly isolated patches of the Fartak Mts compared to the more luxurious forests of the Hawf and Dhofar regions. This is considered to be due to the high buffer capacity against the loss of genetic diversity caused by the long-lived life-form of the species combined with the capability to propagate clonally and the relatively recent fragmentation of Anogeissus forests into the described patches rather than due to high values of gene flow among remnant populations caused by bee pollination and anemochorical and hydrochorical diaspore dispersal. The phylogeographical pattern of the species argues for a quite recent fragmentation of a once continuous forest belt of A. dhofarica that is rather connected with climate changes in the Holocene than triggered by aridity-humidity oscillations reported for the Pleistocene.

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The Hybantho durae-Anogeissetum dhofaricae ass. nova - phytosociology, structure and ecology of an endemic South Arabian forest community

Cited by 37 publications

References 0 publications

Dewfall and its ecological significance in semi-arid coastal south-western Madagascar

Dewfall and its ecological significance in semi-arid coastal south-western Madagascar

Dicoma chatanensissp. nov. (Compositae) from Yemen, and notes on the other species of Dicomeae on the Arabian Peninsula and Socotra

Genetic structure of Anogeissus dhofarica (Combretaceae) populations endemic to the monsoonal fog oases of the southern Arabian Peninsula

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