Contrasting arthropod communities associated with dwarf mistletoes Arceuthobium globosum and A-vaginatum and their host Pinus hartwegii
Por:
Chavez-Salcedo, Leon F., Queijeiro-Bolanos, Monica E., Lopez-Gomez, Victor, Cano-Santana, Zenon, Mejia-Recamier, Blanca E., Mojica-Guzman, Aurea
Publicada:
1 sep 2018
Categoría:
Forestry
Resumen:
Arthropod communities and epiphytic plants associated with tree canopies
have been widely studied and have revealed a great diversity of
organisms; however, the community hosted by parasitic plants, such as
dwarf mistletoes, remains poorly known. In the coniferous forests of
North America, dwarf mistletoe infection (Arceuthobium spp.)
significantly damages the health of the forest, causing large financial
losses for the forest industry, but it also positively affects
diversity, especially of mammals and birds. This study examined the
attributes of the arthropod communities associated with two species of
dwarf mistletoe [Arceuthobium globosum Hawksw. & Wiens and A.
vaginatum (Humb. & Bonpl. ex Willd.) J. Presl] and their host Pinus
hartwegii Lindl. In 2010, in five sites located in Zoquiapan (Central
Mexico), we collected plant tissue from the three species bimonthly.
Arthropods were separated from the plant tissue and identified to the
finest level possible. We collected 32,059 individuals, for which 51
morphospecies were identified, belonging to 15 taxonomic orders; the
most abundant orders for the three plants were Prostigmata, Thysanoptera
and Homoptera. The community associated with P. hartwegii had the
highest value of diversity (H' = 1.47; A. globosum, H' = 0.64; A.
vaginatum, H' = 0.68) and species richness (S = 40; A. globosum, S = 30;
A. vaginatum, S = 35); while abundance was significantly higher for the
mistletoes (A. globosum, n = 407 individuals/sample; A. vaginatum, n =
536 individuals/sample; P. hartwegii, n = 134 individuals/sample).
Species richness, abundance and diversity were significantly different
for the three studied plants, as well for sampling month and the
interaction of these two factors (except for diversity). The results
suggest that the canopy of P. hartwegii is an important element in the
ecosystem, providing a mosaic of resources and conditions to the
associated fauna. We also propose that mistletoes are key species within
the forest canopy, as they greatly influence the establishment of
diverse organisms, particularly arthropods.
Filiaciones:
Chavez-Salcedo, Leon F.:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Ecol & Recursos Nat, Lab Interacc & Proc Ecol, Av Univ 3000, Mexico City 04510, DF, Mexico
Queijeiro-Bolanos, Monica E.:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Ecol & Recursos Nat, Lab Interacc & Proc Ecol, Av Univ 3000, Mexico City 04510, DF, Mexico
Univ Autonoma Queretaro, Fac Ciencias Nat, Dept Ecol, Av Ciencias S-N, Queretaro 76230, Queretaro, Mexico
Lopez-Gomez, Victor:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Ecol & Recursos Nat, Lab Interacc & Proc Ecol, Av Univ 3000, Mexico City 04510, DF, Mexico
Cano-Santana, Zenon:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Ecol & Recursos Nat, Lab Interacc & Proc Ecol, Av Univ 3000, Mexico City 04510, DF, Mexico
Mejia-Recamier, Blanca E.:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Ecol & Recursos Nat, Lab Ecol & Sistemat Microartropodos, Av Univ 3000, Mexico City 04510, DF, Mexico
Mojica-Guzman, Aurea:
Univ Nacl Autonoma Mexico, Inst Biol, Av Univ 3000, Mexico City 04510, DF, Mexico
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