Effects of diet change on carbon and nitrogen stable-isotope ratios in blood cells and plasma of the long-nosed bandicoot (Perameles nasuta)

TY - JOUR

T1 - Effects of diet change on carbon and nitrogen stable-isotope ratios in blood cells and plasma of the long-nosed bandicoot (Perameles nasuta)

AU - Klaassen, M.R.J.

AU - Thums, M.

AU - Hume, I.D.

N1 - Reporting year: 2004 Metis note: 3432; CL; PDI ; AnE file:///L:/Endnotedatabases/NIOOPUB/pdfs/Pdfs2004/Klaassen_ea_3432.pdf

PY - 2004

Y1 - 2004

N2 - Above- and belowground herbivores promote plant diversity when selectively feeding on dominant plant species, but little is known about their combined effects. Using a model system, we show that neutral effects of an aboveground herbivore and positive effects of a belowground herbivore on plant diversity became profoundly negative when adding these herbivores in combination. The non-additive effects were explained by differences in plant preference between the aboveground- and the belowground herbivores and their consequences for indirect interactions among plant species. Simultaneous exposure to aboveground- and belowground herbivores led to plant communities being dominated by a few highly abundant species. As above- and belowground invertebrate herbivores generally differ in their mobility and local distribution patterns, our results strongly suggest that abovegroundbelowground interactions contribute to local spatial heterogeneity of diversity patterns within plant communities. [KEYWORDS: Abovebelowground interactions ; indirect effects ; insect herbivores ; nematodes ; plant diversity]

AB - Above- and belowground herbivores promote plant diversity when selectively feeding on dominant plant species, but little is known about their combined effects. Using a model system, we show that neutral effects of an aboveground herbivore and positive effects of a belowground herbivore on plant diversity became profoundly negative when adding these herbivores in combination. The non-additive effects were explained by differences in plant preference between the aboveground- and the belowground herbivores and their consequences for indirect interactions among plant species. Simultaneous exposure to aboveground- and belowground herbivores led to plant communities being dominated by a few highly abundant species. As above- and belowground invertebrate herbivores generally differ in their mobility and local distribution patterns, our results strongly suggest that abovegroundbelowground interactions contribute to local spatial heterogeneity of diversity patterns within plant communities. [KEYWORDS: Abovebelowground interactions ; indirect effects ; insect herbivores ; nematodes ; plant diversity]

U2 - 10.1071/ZO04029

DO - 10.1071/ZO04029

M3 - Article

SN - 0004-959X

VL - 52

SP - 635

EP - 647

JO - Australian Journal of Zoology

JF - Australian Journal of Zoology

IS - 6

ER -