TY - JOUR
T1 - Fungal endophytes in dicotyledonous neotropical trees
T2 - Patterns of abundance and diversity
AU - Arnold, A. Elizabeth
AU - Zuleyka, Maynard
AU - Gilbert, Gregory S.
N1 - Funding Information: We thank L. McDade for her valuable insights, advice, and guidance; R. Michod for sharing laboratory space; J. L. Bronstein for helpful comments in the preparation of this manuscript; D. Jean Lodge for an invitation to participate in the Asian Mycological Congress (AEA); Kevin D. Hyde and his students for hosting the AMC2000; and two anonymous reviewers for improving the manuscript. We gratefully acknowledge P. D. Coley and T. A. Kursar, without whom this research would not have been possible; the Smithsonian Tropical Research Institute and O. Acevedo for logistical support; and Novartis-Pharma AG (GSG), NSF-DEB 9902346 to L. McDade and AEA, a three-year NSF Graduate Fellowship (AEA), a Graduate and Professional Student Council grant for travel (AEA), Mrs. Ruth Hoshaw (AEA), and a fellowship from the Research Training Group in Biological Diversification at the University of Arizona (AEA; NSF-DIR-9113362, BIR-9602246) for funding support.
PY - 2001
Y1 - 2001
N2 - Fungal endophytes have been found in every plant species examined to date and appear to be important, but largely unquantified, components of fungal biodiversity. Endophytes are especially little known in tropical forest trees, where their abundance and diversity are thought to be greatest. Here, we explore the occurrence of endophytes in a broad diversity of woody, angiospermous taxa in a lowland, moist tropical forest in central Panamá. We use similarity indices to assess host preference and spatial heterogeneity of endophytes associated with two co-occurring, but distantly related, understorey tree species in two sites of that forest, and assess the utility of indices based on frequencies of morphospecies occurrence (Morisita-Horn index) and on presence-absence data (Sørensen's index). We suggest that our understanding of fungal diversity will be enhanced by exploring ecological patterns underlying endophyte occurrence in host species, and discuss methods for assessing the proportion of fungal biodiversity represented by tropical endophytes.
AB - Fungal endophytes have been found in every plant species examined to date and appear to be important, but largely unquantified, components of fungal biodiversity. Endophytes are especially little known in tropical forest trees, where their abundance and diversity are thought to be greatest. Here, we explore the occurrence of endophytes in a broad diversity of woody, angiospermous taxa in a lowland, moist tropical forest in central Panamá. We use similarity indices to assess host preference and spatial heterogeneity of endophytes associated with two co-occurring, but distantly related, understorey tree species in two sites of that forest, and assess the utility of indices based on frequencies of morphospecies occurrence (Morisita-Horn index) and on presence-absence data (Sørensen's index). We suggest that our understanding of fungal diversity will be enhanced by exploring ecological patterns underlying endophyte occurrence in host species, and discuss methods for assessing the proportion of fungal biodiversity represented by tropical endophytes.
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U2 - 10.1017/S0953756201004956
DO - 10.1017/S0953756201004956
M3 - Article
SN - 0953-7562
VL - 105
SP - 1502
EP - 1507
JO - Mycological Research
JF - Mycological Research
IS - 12
ER -