Above- and belowground trophic interactions on creeping thistle (Cirsium arvense) in high- and low-diversity plant communities:: Potential for biotic resistance?

被引:13
作者
Bezemer, TM
Graça, O
Rousseau, P
van der Putten, WH
机构
[1] Netherlands Inst Ecol, Ctr Terrestrial Ecol, NL-6666 ZG Heteren, Netherlands
[2] Wageningen Univ, Nematol Lab, NL-6700 ES Wageningen, Netherlands
关键词
Aphis fabae; Macrosiphum euphorbiae; nematode; Paratylenchus; Uroleucon cirsii;
D O I
10.1055/s-2004-817846
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The capacity of local communities to control introduced plants is called biotic resistance. Biotic resistance has been almost exclusively tested for plant competition and above-ground herbivores and pathogens, while neglecting root herbivores and soil pathogens. Here, we present biotic resistance by above- and below-ground herbivores in concert, and relate the abundance of the plant enemies to the species diversity of the local plant communities. The study was carried out in a 7-year-old biodiversity field experiment. We used creeping thistle (Cirsium arvense) as a model, and quantified sap-sucking herbivores: aboveground aphids, their antagonists, and root-feeding nematodes. As plant diversity treatments, we used field plots sown with high (15 plant species, HSD) or low (4 plant species, LSD) diverse seed mixtures in 1996 and that were not weeded. Creeping thistle became established spontaneously at the start of the experiment. In 2002, in HSD plots, 90% of the plant community was made up by 11 species, compared to seven species in LSD plots. No differences were found for C. arvense abundance or biomass. Aboveground, three aphid species were found on C. orvense-Uroleucon cirsii, Aphis fabae, and Macrosiphum euphorbiae, but the latter was found only in low densities. Significantly more aphid species were found on individual plants in HSD plots. Moreover, in HSD plots, on average 10% of aphids were parasitized, while no parasitism was observed in LSD plots. In the root zone of C arvense, significantly more nematodes were found in HSD than in LSD plots, and a significantly higher proportion of those nematodes were plant parasites. The dominant plant parasitic nematode in both treatments was Paratylenchus. We conclude that biotic resistance by natural enemies may be enhanced by plant species diversity, but that above- and below-ground sap-sucking herbivores do not necessarily have to respond similarly to the diversity of the surrounding plant community.
引用
收藏
页码:231 / 238
页数:8
相关论文
共 52 条
[1]   Linking above-ground and below-ground interactions: How plant responses to foliar herbivory influence soil organisms [J].
Bardgett, RD ;
Wardle, DA ;
Yeates, GW .
SOIL BIOLOGY & BIOCHEMISTRY, 1998, 30 (14) :1867-1878
[2]   Functional aspects of soil animal diversity in agricultural grasslands [J].
Bardgett, RD ;
Cook, R .
APPLIED SOIL ECOLOGY, 1998, 10 (03) :263-276
[3]   Above- and below-ground terpenoid aldehyde induction in cotton, Gossypium herbaceum, following root and leaf injury [J].
Bezemer, TM ;
Wagenaar, R ;
Van Dam, NM ;
Van Der Putten, WH ;
Wäckers, FL .
JOURNAL OF CHEMICAL ECOLOGY, 2004, 30 (01) :53-67
[4]   Interactions between above- and belowground insect herbivores as mediated by the plant defense system [J].
Bezemer, TM ;
Wagenaar, R ;
Van Dam, NM ;
Wäckers, FL .
OIKOS, 2003, 101 (03) :555-562
[5]  
Bongers T., 1988, De Nematoden van Nederland: Een identificatietabel voor de in Nederland aangetroffen zoetwater-en bodembewonende nematoden
[6]  
BROWN T J, 1990, Molecular and Cellular Neuroscience, V1, P58, DOI 10.1016/1044-7431(90)90042-3
[7]  
Burrows RL, 2002, CAN J BOT, V80, P120, DOI [10.1139/b01-138, 10.1139/B01-138]
[8]   Fluctuating resources in plant communities: a general theory of invasibility [J].
Davis, MA ;
Grime, JP ;
Thompson, K .
JOURNAL OF ECOLOGY, 2000, 88 (03) :528-534
[9]   Soil invertebrate fauna enhances grassland succession and diversity [J].
De Deyn, GB ;
Raaijmakers, CE ;
Zoomer, HR ;
Berg, MP ;
de Ruiter, PC ;
Verhoef, HA ;
Bezemer, TM ;
van der Putten, WH .
NATURE, 2003, 422 (6933) :711-713
[10]   Influence of herbivory, competition and soil fertility on the abundance of Cirsium arvense in acid grassland [J].
Edwards, GR ;
Bourdôt, GW ;
Crawley, MJ .
JOURNAL OF APPLIED ECOLOGY, 2000, 37 (02) :321-334