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- W135079610 abstract "Cryptogams are rarely included in conservation planning andmanagement. This study aims to improve the data available forcryptogam conservation by focusing on two groups of cryptogams,mosses and macrofungi, to test the usefulness of vegetation type,vascular plants and environmental variables, including substrate, assurrogates for cryptogams in achieving satisfactory conservationoutcomes.Sites from four vegetation types (wet forest, heathy woodland, grassywoodland and alpine heath) in the Hobart region of Tasmania weresurveyed over a period of several years for vascular plants, mosses andepigeous macrofungi using permanent plots. Repeated sampling of themacrofungi ensured that a reasonable proportion of the taxa likely to bepresent were recorded. A total of 284 vascular plants, 71 mosses and233 macrofungi were recorded.Ordination and analysis of similarity both showed that the four vegetationtypes were significantly different from each other; this pattern occurredfor vascular plants, mosses and macrofungi. Congruence between thethree taxonomic groups was tested using Partial Mantel tests; all pairwiseassociations were highly significant, showing highly predictive rvalues.Significant and predictive associations occurred betweenenvironmental and substrate variables and biotic groups (vascular plants,mosses and macrofungi, and their various subsets). Canopy cover wasthe best single predictor of most biotic groups. Particular combinations ofsignificant environmental variables had higher correlations with bioticgroups than single variables, for example the combination of altitude,canopy cover and geology had higher r-values than any of these factorsindividually. Mosses and macrofungi exhibited high substrate fidelityacross time and space. Substrate preferences of macrofungi did not varyamong vegetation types, but mosses in wet forest occurred on a widerrange of substrates than the same species in other vegetation types. Iterative, optimisation, fully random and stratified random methods werecompared for their effectiveness in the selection of sites for theconservation of vascular plants, mosses and macrofungi. When 10% ofsites were selected for reservation there was little commonality in siteselection between the three taxonomic groups. When 30% of sites wereselected, at least 48% of all taxa were reserved by all approaches tested.The most useful data sets for selecting sites representative of the threetaxonomic groups were vascular plants, named species from all threetaxonomic groups and sites selected randomly with equal proportions ofeach vegetation type.The results suggest that coarse scale conservation of vegetation typeswith reservation of at least 30% of their area should conserve commonmosses and macrofungi. However, at the site scale, uncommon taxa (i.e.taxa only found on a single site) of mosses and macrofungi are notconcordant with vascular plants. Associations of moss and macrofungalspecies with particular substrates and microhabitats may assist with siteselections for reservation. For adequate management, further research isrequired on the occurrence and substrate and habitat specificity of raretaxa." @default.
- W135079610 created "2016-06-24" @default.
- W135079610 creator A5030258620 @default.
- W135079610 date "2008-10-01" @default.
- W135079610 modified "2023-09-27" @default.
- W135079610 title "Surrogates for cryptogam conservation - associations between mosses, macrofungi, vascular plants and environmental variables" @default.
- W135079610 hasPublicationYear "2008" @default.
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