Remarks on the species composition of ephemeral flush communities on paleotropical rock outcrops

Porembski, Stefan; Watve, Aparna

doi:10.1127/0340-269x/2005/0035-0389

Cited by 20 publications

(16 citation statements)

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“…This region of the Ghats has been the center of the Deccan volcanism event and is made up mostly of basaltic rock (Jog et al, 2002). Some parts of the Ghats show peculiar rocky outcrop formations (either basaltic or lateritic) on hilltops (Widdowson and Cox, 1996) known to have unique fauna and flora (Porembski and Watve, 2005;Watve, 2013). This region of the Ghats gets a majority of its rainfall in the Monsoon season (JuneSeptember/October) and has a prolonged dry season lasting from 5 to 8 months (Mani, 1974).…”

Section: Study Areamentioning

confidence: 99%

Distribution and assemblages of large branchiopods (Crustacea: Branchiopoda) of northern Western Ghats, India

Padhye

Dahanukar²

2015

J Limnol

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Section: Study Areamentioning

confidence: 99%

Distribution and assemblages of large branchiopods (Crustacea: Branchiopoda) of northern Western Ghats, India

Padhye

Dahanukar²

2015

J Limnol

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“…Inundated during rainy periods they are completely desiccated for most of the year and are naturally free of woody vegetation. In the rainy season ferricretes in tropical Africa and India are covered by large expanses of ephemeral flush vegetation with a high percentage of carnivorous plants (Porembski & Watve 2005). Otherwise not much is known about this type of rock outcrop vegetation but there seem to exist floristic affinities to the vegetation of granitic/gneissic inselbergs.…”

Section: Comparison With Other Rock Outcropsmentioning

confidence: 99%

Tropical inselbergs: habitat types, adaptive strategies and diversity patterns

Porembski¹

2007

Rev. bras. Bot.

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208

185

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-(Tropical inselbergs: habitat types, adaptive strategies and diversity patterns). Inselbergs are isolated rock outcrops that rise abruptly above the surrounding plains. Granitic and gneissic inselbergs are geologically and geomorphologically old and occur throughout a broad spectrum of climatic zones. They form microclimatically and edaphically dry growth sites that support a highly specialized vegetation. Based on physiognomic criteria a number of habitat types can be distinguished that are widespread on inselbergs (e.g. ephemeral flush vegetation, monocotyledonous mats, rock pools). Three hot spots of global inselberg plant diversity can be identified which are both rich in species and endemics: a) southeastern Brazil, b) Madagascar and c) southwestern Australia.Key words -adaptive traits, conservation, endemics, rock outcrops, species richness RESUMO -(Inselbergs tropicais: tipos de hábitats, estratégias adaptativas e padrões de diversidade). "Inselbergs" são afloramentos rochosos isolados que emergem abruptamente acima das planícies que os cercam. Inselbergs graníticos e gnássicos são geologicamente e geomorfologicamente antigos e ocorrem ao longo de um amplo espectro de zonas climáticas. Eles formam sítios de crescimento que são microclimaticamente e edaficamente secos, e sustentam uma vegetação altamente especializada. Vários tipos de hábitats podem ser distinguidos, com base em critérios fisionômicos, que são comuns a vários inselbergs (e.g., vegetação de floração efêmera, "tapetes" de monocotiledôneas, "panelas" rochosas). Três regiões importantes do mundo com diversidade de vegetais típicos de inselbergs, podem ser apontados, que são ricos tanto em espécies quanto em endemismos; são elas: a) o sudeste do Brasil, b) Madagascar e c) o sudoeste da Austrália.Palavras-chave -afloramentos rochosos, características adaptativas, conservação, endemismos, riqueza de espécies

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“…Carnivory: Carnivory is an adaptation by plants to overcome the scarcity of nutrients like nitrogen, phosphorus and potassium (Ellison 2006). Carnivorous plants are abundant and diverse in the ephemeral flush vegetation on rock outcrops (Porembski & Watve 2005) such as ferricretes, mesas and inselbergs in India. But only two species of bladderworts were recorded on cliff microhabitats in this study.…”

Section: Adaptationsmentioning

confidence: 99%

<b>Vascular plant assemblage of cliffs in northern Western Ghats, India</b>

Datar

Watve

2018

J. Threat. Taxa

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Vertical rocky cliffs, which consist of various types of rock, are widespread all over the world. India's northern Western Ghats consisting of basaltic rocks form probably the largest cliff ecosystem globally, however, almost no studies are available concerning their floristic richness. In an attempt to understand the vascular plant assemblage of this habitat, cliffs of the northern Western Ghats were surveyed for their microhabitats, species diversity, distribution of endemics, occurrence of particular adaptive traits and potential threats. A total of 102 species of vascular plants were documented from the cliff habitats of which 55 are endemic. Flowering of the species on cliffs is triggered by the advent of the south-west monsoon and peak flowering is seen between August and October. Of the total species, 27 grow exclusively on cliffs. Owing to habitat specificity, cliffs show a greater number of narrow endemic and threatened species when compared with other habitats like deciduous, evergreen and semi-evergreen forests, which are widespread in the northern Western Ghats. Unfortunately, this habitat faces threats in the form of landslides, periodic burning and habitat loss due to road-widening.

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Remarks on the species composition of ephemeral flush communities on paleotropical rock outcrops

Cited by 20 publications

References 0 publications

Distribution and assemblages of large branchiopods (Crustacea: Branchiopoda) of northern Western Ghats, India

Distribution and assemblages of large branchiopods (Crustacea: Branchiopoda) of northern Western Ghats, India

Tropical inselbergs: habitat types, adaptive strategies and diversity patterns

<b>Vascular plant assemblage of cliffs in northern Western Ghats, India</b>

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