Dew Formation and Activity of Biological Soil Crusts

  • M. Veste
  • B. G. Heusinkveld
  • S. M. Berkowicz
  • S. -W. Breckle
  • T. Littmann
  • A. F. G. Jacobs
Part of the Ecological Studies book series (ECOLSTUD, volume 200)

Biological soil crusts are prominent in many drylands and can be found in diverse parts of the globe including the Atacama desert, Chile, the Namib desert, Namibia, the Succulent-Karoo desert, South Africa, and the Negev desert, Israel. Because precipitation can be negligible in deserts — the Atacama desert being almost rain-free — or restricted to infrequent rains during short rainfall seasons, atmospheric moisture in the form of dew and/or fog can be a major, regular supplier of water for cryptogams.

To study in situ microclimatic boundary conditions of dew formation and/or influence on biological crust activity in a hot desert, a variety of intensive field experiments were conducted by the authors in the Haluza sand dune region, North- Western Negev desert. Microclimatic parameters such as the radiative energy budget, specific humidity, or difference between air temperature and dewpoint are needed to determine the onset and termination of lichen photosynthetic activity.

In the present paper, the physiological activation of soil lichens was measured by chlorophyll fluorescence (as used by Schroeter et al. 1992; Leisner et al. 1997). For the biological sand crusts, general meteorological stations were established on a dune slope or along a transect, in addition to intensive field campaigns where a variety of meteorological sensors were operated in parallel with manual and automatic microlysimeter dew measurements of both physical and biological crusts. The purpose focused on acquiring detailed information on the dew formation and drying process and dew quantities that could condense overnight. Full details regarding the experiments and instrumentation may be found in Jacobs et al. (1999, 2000a), Veste et al. (2001), Heusinkveld et al. (2006) and Littmann and Veste (2006).


Soil Crust Biological Soil Crust Leaf Wetness Negev Desert Biological Crust 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Agam N, Berliner PR (2004) Diurnal water content changes in the bare soil of a coastal desert. J Hydrometeorol 5:922–933CrossRefGoogle Scholar
  2. Agam N, Berliner PR (2006) Dew formation and water vapor adsorption in semi-arid environments–A review. J Arid Environ 65:572–590CrossRefGoogle Scholar
  3. Armstrong S (1990) Fog, wind and heat: life in the Namib desert. New Scientist 127(1725):46–50Google Scholar
  4. Berkowicz SM, Heusinkveld BG, Jacobs AFG (2001) Dew in an arid ecosystem: ecological aspects and problems in dew measurement. In: Schemenauer RS, Puxbaum H (eds) Proc 2nd Int Conf Fog and Fog Collection, 15–20 July 2001, St. John’s, Newfoundland, Canada, pp 301–304Google Scholar
  5. Beysens D (1995) The formation of dew. Atmospheric Res 39:215–237CrossRefGoogle Scholar
  6. Bitan A, Rubin S (1991) Climatic atlas of Israel for physical and environmental planning and design. Ramot, Tel Aviv University, Tel AvivGoogle Scholar
  7. Broza M (1979) Dew, fog and hygroscopic food as a source of water for desert arthropods. J Arid Environ 2:43–49Google Scholar
  8. Cereceda P, Osses P, Larrain H, Fari M, Lagos M, Pinto R, Schemenauer RS (2002) Advective, orographic and radiation fog in the Tarapaca region, Chile. Atmospheric Res 64:261–271CrossRefGoogle Scholar
  9. Degen A, Leeper A, Shachak M (1992) The effect of slope direction and population density on water influx in a desert snail, Trochoidea seetzenii. Funct Ecol 6:160–166CrossRefGoogle Scholar
  10. Evenari M, Shanan L, Tadmor N (1982) The Negev: the challenge of a desert, 2nd edn. Harvard University Press, Cambridge, MAGoogle Scholar
  11. Garratt JR, Segal M (1988) On the contribution of atmospheric moisture to dew formation. Boundary-Layer Meterol 45:209–236CrossRefGoogle Scholar
  12. Goldreich Y (2003) The climate of Israel: observation, research and application. Kluwer/Plenum, New York, Dordrecht, LondonCrossRefGoogle Scholar
  13. Heusinkveld BG, Berkowicz SM, Jacobs AFG, Holtslag AAM, Hillen WCAM (2006) An automated microlysimeter to study dew formation and evaporation in arid and semi-arid regions. J Hydrometeorol 7:825–832CrossRefGoogle Scholar
  14. Heusinkveld BG, Berkowicz SM, Jacobs AFG, Hillen WCAM, Holtslag AAM (2008) A remote optical wetness sensor using spectral reflectance spectroscopy. Agric Forest Meteorol (in press)Google Scholar
  15. Jacobs AFG, Heusinkveld BG, Berkowicz S (1999) Dew deposition and drying in a desert system: a simple simulation model. J Arid Environ 42:211–222CrossRefGoogle Scholar
  16. Jacobs AFG, Heusinkveld BG, Berkowicz S (2000a) Dew measurements along a longitudinal sand dune transect, Negev desert, Israel. Int J Biometeorol 43:184–190PubMedCrossRefGoogle Scholar
  17. Jacobs AFG, Heusinkveld BG, Berkowicz S (2000b) Force restore technique for surface temperature and surface moisture in a dry desert system. Water Resources Res 36:1261–1268CrossRefGoogle Scholar
  18. Jacobs AFG, Heusinkveld BG, Berkowicz S (2002) A simple model for potential dew-fall in an arid region. Atmospheric Res 64:285–295CrossRefGoogle Scholar
  19. Kappen L, Lange OL, Schulze E-D, Evenari M, Buschbom U (1979) Ecophysiological investigations on lichens of the Negev desert. Flora 168:85–108Google Scholar
  20. Kidron GJ (1998) A simple weighing method for dew and fog measurements. Weather 53:428–433CrossRefGoogle Scholar
  21. Kidron GJ (1999) Altitude dependent dew and fog in the Negev Desert, Israel. Agric Forest Meteorol 96:1–8CrossRefGoogle Scholar
  22. Lange OL (2001) Photosynthesis of soil crust-biota as dependent on environmental factors. In: Belnap J, Lange OL (eds) Biological soil crusts: structure, function and management. Ecological Studies vol 150, Springer, Berlin Heidelberg New York, pp 217–240CrossRefGoogle Scholar
  23. Lange OL, Schulze E-D, Koch W (1970) Experimentell-ökologische Untersuchungen an Flechten der Negev-Wüste. III. CO2-Gaswechsel und Wassergehalt von Krusten- und Blattflechten am natürlichen Standort während der sommerlichen Trockenperiode. Flora 159:525–528Google Scholar
  24. Lange OL, Kidron GJ, Büdel B, Meyer A, Kilian E, Abeliovich A (1992) Taxonomic composition and photosynthetic characteristics of the biological crusts covering sand dunes in the western Negev. Funct Ecol 6:519–527CrossRefGoogle Scholar
  25. Lange OL, Büdel B, Meyer A, Kilian E (1993) Further evidence that activation of net photosynthesis by dry cyanobacterial lichens requires liquid water. Lichenologist 25:175–189Google Scholar
  26. Lange OL, Meyer A, Zellner H, Heber U (1994) Photosynthesis and water relations of lichen soil crusts: field measurements in the coastal fog zone of the Namib Desert. Funct Ecol 8:253–264CrossRefGoogle Scholar
  27. Lange OL, Reichenberger H, Meyer A (1995) High thallus water content and photosynthetic CO2 exchange of lichens. Laboratory experiments with soil crust species from local xerothermic steppe formations in Franconia, Germany. In: Daniels FJA, Schulz M, Peine J (eds) Flechten Follmann. Contributions to lichenology in honor of Gerhard Follmann. Geobotanical and Phytotaxonomical Study Group, Universität Köln, pp 139–153Google Scholar
  28. Lange OL, Belnap J, Reichenberger H, Meyer A (1997a) Photosynthesis of green algal soil crust lichens from arid lands in southern Utah, USA: role of water content on light and temperature responses of CO2 exchange. Flora 192:1–15Google Scholar
  29. Lange OL, Reichenberger H, Walz H (1997b) Continuous monitoring of CO2 exchange of lichens in the field: short-term enclosure with an automatically operating cuvette. Lichenologist 29:259–274Google Scholar
  30. Lange OL, Belnap J, Reichenberger H (1998) Photosynthesis of the cyanobacterial soil-crust lichen Collema tenax from arid lands in southern Utah, USA: role of water content on light and temperature responses of CO2 exchange. Funct Ecol 12:519–527CrossRefGoogle Scholar
  31. Lange OL, Green TGA, Melzer B, Meyer A, Zellner H (2006) Water relations and CO2 exchange of the terrestrial lichen Teloschistes capensis in the Namib fog desert: measurements during two seasons in the field and under controlled conditions. Flora 201(4):268–280CrossRefGoogle Scholar
  32. Leisner JMR, Green TG, Lange OL (1997) Photobiont activity of a temperate crustose lichen: long-term chlorophyll fluorescence and CO2 exchange measurements in the field. Symbiosis 23:165–182Google Scholar
  33. Littmann T, Veste M (2006) Determination of actual evapotranspiration and transpiration in desert sand dunes (Negev Desert) using different approaches. Forestry Stud China 8(1):1–9CrossRefGoogle Scholar
  34. Loris K, Jürgens N, Veste M (2004) Zonobiom III. Die Namib-Wüste im südwestlichen Afrika (Namibia, Südafrika, Angola). In: Walter H, Breckle S-W (eds) Ökologie der Erde, Band 2. Spezielle Ökologie der tropischen und subtropischen Zonen, 3. Aufl. Elsevier, Amsterdam, pp 441–513Google Scholar
  35. Martin CE, von Willert DJ (2000) Leaf epidermal hydathodes and the ecophysiological consequences of foliar water uptake in species of Crassula from the Namib Desert in Southern Africa. Plant Biol 2:229–242CrossRefGoogle Scholar
  36. Moffett MW (1985) An Indian ant’s novel method for obtaining water. Natl Geogr Res 1:146–149Google Scholar
  37. Monteith JL (1957) Dew. Q J R Meteorol Soc 83:322–341CrossRefGoogle Scholar
  38. Munne-Bosch S, Alegre L (1999) Role of dew on the recovery of water-stressed Melissa officinalis L. plants. J Plant Physiol 154:759–766CrossRefGoogle Scholar
  39. Munne-Bosch S, Nogues S, Alegre L (1999) Diurnal variations of photosynthesis and dew absorption by leaves in two evergreen shrubs growing in Mediterranean field conditions. New Phytol 144:109–119CrossRefGoogle Scholar
  40. Ninari N, Berliner PR (2002) The role of dew in the water and heat balance of bare Loess soil in the Negev Desert: quantifying the actual dew deposition on the soil surface. Atmospheric Res 64:325–336CrossRefGoogle Scholar
  41. Richards K (2004) Observation and simulation of dew in rural and urban environments. Progr Phys Geogr 28:76–94CrossRefGoogle Scholar
  42. Roedel W (1992) Physik unserer Umwelt, die Atmosphäre. Springer, Berlin Heidelberg New YorkGoogle Scholar
  43. Schemenauer RS, Cereceda P (1994) A proposed standard fog collector for use in high-elevation regions. J Appl Meteorol 33:1313–1322CrossRefGoogle Scholar
  44. Schroeter B, Green TGA, Seppelt RD, Kappen L (1992) Monitoring photosynthetic activity of crustose lichens using a PAM-2000 fluorescence system. Oecologia 92:457–462CrossRefGoogle Scholar
  45. Steinberger Y, Loboda I, Garner W (1989) The influence of autumn dewfall on spatial and temporal distribution of nematodes in the desert ecosystem. J Arid Environ 16:177–183Google Scholar
  46. Veste M, Littmann T (2006) Dewfall and its geo-ecological implication for biological surface crusts in desert sand dunes (north-western Negev, Israel). J Arid Land Stud 16(3):139–147Google Scholar
  47. Veste M, Littmann T, Friedrich H, Breckle S-W (2001) Microclimatic boundary conditions for activity of soil lichen crusts in sand dunes of the north-western Negev desert, Israel. Flora 196:465–476Google Scholar
  48. von Rönsch H (1990) Tau und Reif in Harzgerode. Z Meteorol 40:197–204Google Scholar
  49. von Willert DJ, Eller BM, Werger MJA, Brinckmann E, Ihlenfeldt H-D (1992) Life strategies of succulents in deserts with special reference to the Namib desert. Cambridge University Press, New YorkGoogle Scholar
  50. Waisel Y (1958) Dew absorption by plants of arid zones. Bull Res Council Israel D6:180–186Google Scholar
  51. Zangvil A (1996) Six years of dew observations in the Negev Desert, Israel. J Arid Environ 32:361–371CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • M. Veste
    • B. G. Heusinkveld
      • 1
    • S. M. Berkowicz
      • 2
    • S. -W. Breckle
      • T. Littmann
        • 3
        • 4
      • A. F. G. Jacobs
        • 5
      1. 1.Wageningen University, Meteorology and Air QualityWageningenThe Netherlands
      2. 2.Arid Ecosystems Research CenterHebrew University of Jerusalem, Giv' at RamJerusalemIsrael
      3. 3.Institute for GeoscienceMartin-Luther-University of Halle-WittenbergHalleGermany
      4. 4.DLC Dr. Littmann ConsultingEnnepetalGermany
      5. 5.Wageningen University, Meteorology and Air QualityAtlasgebouw, WageningenThe Netherlands

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