A new integrating scientific discipline – Biospherics – studies biotic cycles (both in experiments and in mathematical models) of different degree of closure and complexity.
Co-authors of the study, "Biotic Interactions Mediate Soil Microbial Feedbacks to Climate Change," include Daniel S. Maynard, Kristofer Covey, and Mark A. Bradford of the Yale School of Forestry & Environmental Studies.
Mirroring algal heterogeneity, the minimum required sample size for in situ biomass measurement were greater in blooming season and sandy bottom, suggesting that sampling design for spatio-temporal mapping of MPB should consider the sampling season and/or abiotic and biotic features of study area.
The Caribbean has been an important model system for studying biotic over-water dispersal from continents and island colonization [ 1- 4], as well as vicariance [ 5, 6] as mechanisms for the origin of diversity, and within-island diversification as mediators of species richness and endemism [ 7, 8].
Further, in laboratory strains, most of these selected or mutagenized ecotypes were used to map QTL controlling both abiotic and biotic traits in different studies; for example, across all studies that quantified QTL directions, 7 out of 94 traits mapped in the L er × Col cross were biotic, and 5 out of 97 traits mapped in the L er × Cvi cross were biotic.
This hypothesis needs confirmation with environmental studies involving biotic and abiotic stresses similar to the effects of Fusarium wilt on banana roots62.
A novel but controversial hypothesis postulates that stringent levels of environmental and biotic standardization in experimental studies reduce reproducibility by amplifying the impacts of laboratory-specific environmental factors not accounted for in study designs.
Additionally, if studies of biotic traits detected fewer QTL on average, then our data would be more likely to overestimate effect sizes in traits under biotic selection.
A relatively recent review found evidence for a dampening effect at increasing spatiotemporal scales in studies of biotic response to global change (Leuzinger et al. 2011).
Also, spatial heterogeneity and species richness are both relatively low, and relative to previous studies of biotic homogenization, there are no major elevation or climate gradients.
