All Taxa Biodiversity Inventory Survey of Select Soil and Plant Ecological Parameters Associated with Rhododendron Decline in the Great Smoky Mountains and Surrounding Areas

Autor:	Kristine Johnson, Jac J. Varco, Richard E. Baird, William Starrett, C. E. Watson, Alicia Wood-Jones, Glenn Taylor
Rok vydání:	2013
Předmět:	biology Ecology National park ved/biology ved/biology.organism_classification_rank.species Biodiversity All-taxa biodiversity inventory biology.organism_classification Shrub Taxon Geography Helicotylenchus Ecology Evolution Behavior and Systematics Agricultural crops Woody plant
Zdroj:	Southeastern Naturalist. 12:703-722
ISSN:	1938-5412 1528-7092
DOI:	10.1656/058.012.0412
Popis:	As part of the All Taxa Biodiversity Inventory (ATBI) of Great Smoky Mountains National Park (GRSM), select site parameters associated within upland sites were measured within variable sized pockets of stressed and dead Rhododendron maximum (Great Rhododendron). During the last 20 years, Great Rhododendron, an important shrub in the southern Appalachian Mountains, has been dying in small to larger areas from an unknown cause. With increased visibility of dieback, the study (2006–2009) was conducted at 10 sites in GRSM and 1 in Nantahala National Forest (NNF). Eleven nematode species were identified, with no specific trends across locations or by plot treatments in frequencies of occurrences. Exceptions were Criconemella xenoplax, which was found at all 11 locations and was generally significantly greater in healthy or control than dieback plots, whereas Helicotylenchus sp. was more frequent in dieback plots. Meloidogyne spp., known parasitic nematodes of woody plants and agricultural crops, occur...
Databáze:	OpenAIRE
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