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Morphological groups: a framework for monitoring microphytic crusts in arid landscapes

Morphological groups: a framework for monitoring microphytic crusts in arid landscapes,10.1006/jare.1998.0468,Journal of Arid Environments,D. J. Eldri

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Morphological groups: a framework for monitoring microphytic crusts in arid landscapes   (Citations: 45)
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Microphytic crusts are important components of arid and semi-arid systems. They play important roles in ecosystem processes and are useful indicators of landscape health. Despite their importance, microphytic crusts and their component organisms are little understood, largely due to their small size and the difficulty in identifying them to species level. The influence of microphytic crust organisms on soils and landscapes, and their response to and recovery from perturbation is related largely by their morphology or external appearance. In this paper we examine the relationships between morphological groups of lichens and bryophytes associated with soil crusts, and their roles in ecosystem processes in rangelands. Using published and unpublished data we propose that the morphological group approach is a more efficient method of monitoring soil crust organisms than one based on the traditional species approach.
Journal: Journal of Arid Environments - J ARID ENVIRON , vol. 41, no. 1, pp. 11-25, 1999
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    • ...Differences in crust composition can result in crusts with various morphological, physical and chemical characteristics resulting in different seedbed environments (Eckert et al. 1986; Eldridge and Rosentreter 1999; Belnap et al. 2001; Serpe et al. 2006; Escudero et al. 2007)...

    Amber L. Briggs, et al. Seed characteristics and soil surface patch type interact to affect ge...

    • ...Eldridge and Rosentreter (1999) argue that the use of morphological groups is an efficient and functionally meaningful approach to monitoring soil crust organisms...
    • ...Because the function of soil crust species is largely related to their gross morphology, particularly their influence on soils and their response to disturbance, the relationship lends itself to a functional classification useful in rapid assessments (Eldridge and Rosentreter 1999)...

    Cassia F. Read, et al. Biological soil crust distribution is related to patterns of fragmenta...

    • ...Differences in crust composition can result in crusts with very different morphological, physical, and chemical characteristics; thus resulting in different seedbed environments (Eldridge and Rosentreter 1999; Belnap et al. 2001)...

    Marcelo D. Serpe, et al. Seed water status and root tip characteristics of two annual grasses o...

    • ...unknown whether potential species-specific effects of these lichens on vascular plants are due to their morphological attributes (Eldridge and Rosentreter, 1999 )o r to the exudates produced by these species...
    • ...The morphology of BSC components largely determines their ecological function relative to water infiltration, erosion, water retention and resiliency to disturbances (Eldridge and Rosentreter, 1999)...

    A. Escudero, et al. Soil lichens have species-specific effects on the seedling emergence o...

    • ...Differences in crust composition can result in crusts with very different morphological, physical, and chemical characteristics; thus resulting in different seedbed environments (Eckert et al. 1986; Eldridge and Rosentreter 1999; Boudell et al. 2002)...
    • ...Bryum ,i n contrast, forms a thin mat that extends to the open interspaces between perennial plants (Eldridge and Rosentreter 1999)...
    • ...For this study, a moss was defined as tall if the height of the gametophyte was greater than 10 mm and short if the gametophyte was between 1 and 2 mm. This terminology follows the definition of morphological groups of soil crusts proposed by Eldridge and Rosentreter (1999)...
    • ...Even with biological soil crusts dominated by T. ruralis, we have noticed that some crusts tend to be more compact than the ones used in this study (Eldridge and Rosentreter 1999; Hilty et al. 2004)...

    Marcelo D. Serpe, et al. Germination and seed water status of four grasses on moss-dominated bi...

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