Identifying target species and seed sources for the restoration of threatened trees in southern Brazil

Autor:	P. M. Hoffmann, Christopher Thomas Blum, S. J. E. Velazco, David Gill, M. Borgo
Rok vydání:	2015
Předmět:	Taxon biology Habitat Agroforestry Abundance (ecology) Phenology Threatened species biology.organism_classification Araucaria Tree species Restoration ecology Ecology Evolution Behavior and Systematics Nature and Landscape Conservation
Zdroj:	Oryx. 49:425-430
ISSN:	1365-3008 0030-6053
DOI:	10.1017/s0030605314001069
Popis:	Ecological restoration of trees is often constrained by limited knowledge of the biology, propagation and management requirements of individual species. Consequently, restoration initiatives rarely incorporate less well-known species or those that are difficult to source and grow. We describe challenges associated with the restoration of threatened trees in the Araucaria Forest of southern Brazil, and analyse the effectiveness of methods used to define target species, identify seed sources and generate information on the phenology of rare or threatened tree species. A review of secondary data identified 71 rare or threatened taxa as targets for seed collection. We then surveyed 68.7 km of trails in 26 forest remnants, identifying and mapping 1,027 seed-producing trees of 38 species. Surveys confirmed the scarcity of several tree species (including seven species with an abundance of
Databáze:	OpenAIRE
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