Ephemeral pools as stressful and isolated habitats for the endemic aquatic resurrection plant Chamaegigas intrepidus

Heilmeier, Hermann; Durka, Walter; Woitke, M.; Hartung, Wolfram

doi:10.1127/0340-269x/2005/0035-0449

Cited by 21 publications

(20 citation statements)

References 31 publications

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“…12) which is endemic to Namibia where it occurs in seasonally water-filled rock pools (Heil 1924;Heilmeier et al 2005). This species has desiccation tolerant submerged leaves which are contractile and develops desiccation sensitive floating leaves after rainfall.…”

Section: Adaptive Traitsmentioning

confidence: 99%

Evolution, Diversity, and Habitats of Poikilohydrous Vascular Plants

Porembski

2011

Ecological Studies

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Only a few species of vascular plants are able to cope with extreme temporal variations of water availability. Most higher plants are homoiohydrous, i.e., their water content varies very little. Very exceptionally the water content of vascular plants follows fluctuations of humidity in their environment. Walter (1931) called plants whose water content closely follows fluctuations of humidity in their environment poikilohydrous. Desiccation tolerant vascular plants are able to survive cycles of dehydration and rehydration without losing viability. In the desiccated state they survive the loss of up to 95% of their cellular water. Detailed overviews of the ecological and physiological adaptations of resurrection plants were provided by Gaff (1981Gaff ( , 1989, Bewley (1995), Hartung et al. (1998), Tuba et al. (1998, Kluge and Brulfert (2000), Walters et al. (2002) and Kappen and Valladares (2007). A survey of the anatomy of desiccation tolerant vascular plants was given by Fahn and Cutler (1992). Recently, the molecular genetics of desiccation tolerance became objects of research (for surveys see Ingram and Bartels 1996; Phillips et al. 2002, see also Chaps. 13-17).Desiccation tolerance is widespread among cryptogams but is very rare among higher plants. Early reports of desiccation tolerant angiosperms were provided by e.g., Dinter (1918) and Heil (1924). Knowledge about their natural growth sites became more detailed through the studies of e.g., Hambler (1961) and Gaff (1977) which already emphasized the role of rock outcrops as habitats for desiccation tolerant vascular plants. Since almost two decades own studies are devoted to plant ecological investigations on granitic and gneissic outcrops (inselbergs) and ferricretes over a broad geographic spectrum. Inselbergs are characterized by harsh microclimatic and edaphic conditions, and desiccation-tolerant vascular plants dominate in certain plant communities (e.g., monocotyledonous mats). Based on extensive fieldwork and laboratory experiments, the existing knowledge on the systematic position and the ecology of desiccation tolerant vascular plants was summarized by Porembski and Barthlott (2000). It was demonstrated clearly that rock outcrops such as inselbergs form centres of diversity for poikilohydrous vascular plants. Rather neglected hitherto was the fact that the canopy of forests U. L€ uttge et al. (eds.), Plant Desiccation Tolerance, Ecological Studies 215,

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Section: Adaptive Traitsmentioning

confidence: 99%

Evolution, Diversity, and Habitats of Poikilohydrous Vascular Plants

Porembski

2011

Ecological Studies

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“…Only some 20 sites where the species occurs are known at present (Heilmeier et al, 2005). Its poikilohydric nature, habitat conditions and adaptations to multiple environmental stresses (repeated desiccation and rewetting, high temperatures, exposure to a UV-rich radiation, large diurnal oscillations of the pH of the pool water, extreme nutrient deficiency) have been investigated within the last 15 years both at its natural site and under laboratory conditions (for references, see the review articles of Heilmeier and Hartung, 2001;Heilmeier et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…The shallow pools in which the species grows may either occur isolated on the slopes of the rock outcrops or clumped on flat tops of the outcrops. The plants either grow dispersed or in one to several dense patches (median size: 0.018 m 2 ) per pool (Heilmeier et al, 2005). Thus distribution of Chamaegigas intrepidus is characterized by a highly hierarchical pattern of temporarily suitable patches within a rather hostile landscape matrix.…”

Section: Introductionmentioning

confidence: 99%

Flower morphology of the resurrection plant Chamaegigas intrepidus Dinter and some of its potential pollinators

Woitke

Wolf

Hartung

et al. 2006

Flora - Morphology, Distribution, Functional Ecology of Plants

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“…Más abundantes son las referencias de comunidades de plantas vasculares de pilancones de zonas (sub)tropicales o desérticas: centro y SE de Norteamérica (Whitehouse, 1933;McVaugh, 1943;Burbanck & Platt, 1964;Rury, 1978Rury, , 1985Walters & Wyatt, 1982;Quaterman & al., 1993;Hilton & Boyd, 1996;Keeley & Zedler, 1998;Shure, 1999;Chan & al., 2005), aunque también alcanzan zonas de clima templado (Oosting & Anderson, 1939); África subsahariana (Lebrun, 1947;Trochain, 1950;Schnell, 1952;Monod, 1954;Raynal & Raynal, 1961;Adjanohoun, 1964;Hambler, 1964;Porembski & al., 1994Porembski & al., , 1995Porembski & al., , 1997aPorembski, 1996;Schiller & al., 1997;Seine & al., 1999;Jürgens & Burke, 2000;Krieger & al., 2000;Mucina & al., 2006;Müller & Deil, 2005;Heilmeier & al., 2005;Müller, 2007;Vanschoenwinkel & al., 2007), además de Madagascar (Fischer & Theisen, 2000); Australia occidental (Hop per & al., 1997;Keeley & Zedler, 1998;Hopper, 2000, Duguid & al., 2002, donde se ha estudiado mejor la vegetación de las depresiones someras (Pignatti & Pignatti, 1994); más escas...…”

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Vegetación de las pilas o pilancones de la sierra de Guadarrama y La Serena (España)

Díaz¹

2009

Anal. Jard. Bot. Madr.

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IntroducciónEn muchas rocas más o menos compactas -granitos, areniscas, basaltos, gneises, esquistos, calizas y excepcionalmente pizarras, caso de La Serena, Badajoz (Baonza, 2008)-y bajo gran diversidad de condiciones climatológicas, desde zonas desérticas a polares, son relativamente frecuentes unas cubetas producidas por la meteorización de la roca causada por la propia agua que almacenan (Fig. 1). Son conocidas como pilas o pilancones en castellano, pias (gallego), cassolets (catalán), gnammas, weatherings pits, kamenitzas (las formadas sobre rocas calizas), etc. (Vidal & Twidale, 1998). Son de dimensiones de centimétricas a métri-cas como máximo, de fondo más o menos plano o cóncavo, raramente de forma más o menos semiesféri-ca, y frecuentemente aparecen en grupos.Estas cavidades recogen el agua de lluvia dando lugar a unos pequeños humedales estacionales cuyas comunidades biológicas han sido estudiadas en diversas partes del mundo, aunque con la revisión dificultada pues no siempre se reconoce el tipo geomorfológico al que pertenecen estas cubetas, y por las muy diversas denominaciones que reciben. En estudios biológicos es frecuente el término geomorfológicamente inespecífico "rock pools", que incluye cualquier cubeta sobre roca, como las cubetas generadas en costas rocosas por los flujos mareales e incluso cubetas generadas artificialmente en canteras. Otros términos empleados en estudios biológicos son: potholes, "cupu- Weathering pits are wetlands of geomorphologic and biological interest, but this common fact is darken by the different names used by biologists, such as the ambiguous name of rock pool. Aquatic or amphibious plant communities are known around the world, principally from SE North-America and Tropical Africa, but few are known from Spain. Here, I study the vegetation of weathering pits from two different localities: La Serena (Southweast Spain) and Sierra de Guadarrama (central Spain). Plant communities change with depth of water and depth of sediment in the weathering pits. Some of them are characterized by Crassula vaillantii or Isoetes velatum.

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Ephemeral pools as stressful and isolated habitats for the endemic aquatic resurrection plant Chamaegigas intrepidus

Cited by 21 publications

References 31 publications

Evolution, Diversity, and Habitats of Poikilohydrous Vascular Plants

Evolution, Diversity, and Habitats of Poikilohydrous Vascular Plants

Flower morphology of the resurrection plant Chamaegigas intrepidus Dinter and some of its potential pollinators

Vegetación de las pilas o pilancones de la sierra de Guadarrama y La Serena (España)

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