Results 31 to 40 of about 13,136,359 (338)

Direct and indirect effects of nitrogen enrichment and grazing on grassland productivity through intraspecific trait variability [PDF]

, 2022
In the context of global change, the effects of livestock grazing and nitrogen (N) deposition on ecosystem structure and function of grasslands are not isolated, but simultaneous or even interactive.
Bai, Yongfei, Chi, Yonggang, Li, Wenhuai, Lan, Zhichun, Yang, Xiaojing, Zheng, Shuxia   +5 more
core   +1 more source

Oviposition responses of aphidophagous coccinellids to tracks of ladybird (Coleoptera: Coccinellidae) and lacewing (Neuroptera: Chrysopidae) larvae

European Journal of Entomology, 2001
The effects of oviposition-deterring larval tracks of four aphidophagous coccinellids and two chrysopids were investigated on females of four coccinellid species in choice tests.
Zdeněk RŮŽIČKA
doaj   +1 more source

Intraspecific interference retards growth and development of cane toad tadpoles, but those effects disappear by the time of metamorphosis

Royal Society Open Science, 2023
Competition among larval anurans can occur via interference as well as via a reduction in per-capita food supply. Previous research on intraspecific interference competition in cane toad (Rhinella marina) tadpoles found conflicting results, with one ...
M. R. Crossland, R. Shine
doaj   +1 more source

Intraspecific Competition Effects on Aethina tumida (Coleoptera: Nitidulidae) [PDF]

Journal of Economic Entomology, 2012
Two kinds of experiments were conducted with Aethina tumida Murray larvae over four temperatures: "consumption" experiments, in which larvae and diet were weighed to determine food consumption rates under conditions of unlimited food and few conspecifics; and "competition" experiments, in which varying numbers of larvae were presented with the same ...
William G, Meikle, Joseph M, Patt, Diana, Sammataro   +2 more
openaire   +2 more sources

Strain Identity of the Ectomycorrhizal Fungus Laccaria bicolor Is More Important than Richness in Regulating Plant and Fungal Performance under Nutrient Rich Conditions

Frontiers in Microbiology, 2017
Effects of biodiversity on productivity are more likely to be expressed when there is greater potential for niche complementarity. In soil, chemically complex pools of nutrient resources should provide more opportunities for niche complementarity than ...
Christina Hazard, Laura Kruitbos, Hazel Davidson, Fatou T. Mbow, Andy F. S. Taylor, Andy F. S. Taylor, David Johnson   +6 more
doaj   +1 more source

Higher-order interactions mitigate direct negative effects on population dynamics of herbaceous plants during succession

Environmental Research Letters, 2020
Plant succession is regulated by a combination of abiotic and biotic factors. However, previous studies of biotic drivers have focused overwhelmingly on direct pairwise species interactions, ignoring the likely prevalent higher-order interactions (HOIs ...
Junli Xiao, Yuanzhi Li, Chengjin Chu, Youshi Wang, Scott J Meiners, Daniel B Stouffer   +5 more
doaj   +1 more source

Kin recognition benefits clonal offspring performance of historically grazed Leymus chinensis: insights for grassland management

Ecological Processes, 2022
Background Individual plants can identify their neighbors and adjust their biomass investment to avoid competing with their relatives or jointly cope with external stresses.
Zhen Zhang, Xiliang Li, Junjie Duan, Juan Sun   +3 more
doaj   +1 more source

Plant trait-based life strategies of overlapping species vary in different succession stages of subtropical forests, Eastern China

Frontiers in Ecology and Evolution, 2023
Plants growing in forests at different succession stages in diverse habitats may adopt various life strategies from the perspective of plant functional traits.
Libin Liu, Haojun Xia, Xinghua Quan, Yunquan Wang   +3 more
doaj   +1 more source

Effects of opiate ligands on intraspecific aggression in crickets

Peptides, 2002
In the cricket Gryllus bimaculatus, the opiate antagonist naloxone, 30 microg in 50 microl into hemolymph per animal, caused a release of intraspecific aggression in male-losers and in females. Naloxone had no significant effect on the aggression of winners and isolated males. The agonist of mu-opiate receptors DAGO, 45 microg, suppressed aggression in
Dyakonova, V., Schurmann, F. W., Sakharov, D. A.   +2 more
openaire   +3 more sources

Big bees do a better job : intraspecific size variation influences pollination effectiveness [PDF]

, 2014
Funding: School of Biology, University of St AndrewsBumblebees (Bombus spp.) are efficient pollinators of many flowering plants, yet the pollen deposition performance of individual bees has not been investigated.
Finlayson, Kathryn, P. G. Willmer, K. Finlayson, Pat Willmer, Willmer, Patricia Gillian, Kathryn Finlayson   +5 more
core   +1 more source