Toward a trophic theory of species diversity

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WebJul 25, 2024 · The implications are that changes in species diversity and abundance at higher trophic levels should have no effect on diversity at lower trophic levels. However, … WebJan 31, 2024 · Introduction. Estimates indicate that plants release almost half of assimilated carbon dioxide (CO 2) back into the atmosphere by the process of respiration and that this amount varies between species, conditions, and available resources ().The release of CO 2 by plant respiration, relative to the net assimilation of CO 2 by photosynthesis, determines …

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WebOct 1, 2001 · A high functional diversity indicates the co-occurrence of species with widely differing ecological demands and reflects the ecological diversity in the sense of the IDH in a much better way. Using this approach the organization of plankton communities can be explained from field data within the framework of the intermediate disturbance hypothesis. WebSep 15, 2015 · Toward a trophic theory of species diversity. Efforts to understand the ecological regulation of species diversity via bottom-up approaches have failed to yield a consensus theory. Theories based on the alternative of top-down regulation have fared better. Paine’s discovery of keystone predation demonstrated that the regulation of … pedia research ky

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WebSep 15, 2015 · Toward a trophic theory of species diversity. Authors: Terborgh, John W. Publication Date: 2015-09-15 NSF-PAR ID: 10013398 Journal Name: Proceedings of the … WebOct 13, 2016 · Visiting Research Fellow / Environmental Sustainability Consultant with particular interests in multi-disciplinary approaches within plant sciences, climatic sciences, genetics, chemistry, sustainability, mathematics and computer science. Current interest in fuzzy logic and related hybrid methods, Genetic Algorithms, Functional Approximation and … WebNov 10, 2024 · The impacts of COVID-19 lockdowns on human life, air quality, and river water quality around the world have received significant attention. In comparison, assessments of the implications for freshwater ecosystems are relatively rare. This study explored the impact of COVID-19 lockdowns on aquatic ecosystems in the Yangtze River … meaning of proactive in nepali

Trophic interactions and biodiversity: How natural enemies shape ...

The effect of inter‐ and intraspecific competition on individual and ...

WebBoth theory and simu- Results lations of current models predict the onset of instability with growing Trophic Coherence and Stability. Each species in an ecosystem is size and complexity, so for decades it has been conjectured that generally influenced by others, via processes such as predation, ecosystems must have some unidentified structural ... WebOct 27, 2024 · The theories of species diversity have been tested by comparing derived patterns with observed data, although there are various constraints in such treatments. … meaning of proactive meansWebI am a researcher and academic based in South Africa and currently a Senior Lecturer in the School of Biology and Environmental Sciences at the University of Mpumalanga. My research focuses on freshwater ecology, with a particular interest in how environmental changes and human activities affect aquatic ecosystems and the organisms that live … pedia nephrologist in cebu city

"WebMar 5, 2016 · Our meta‐analysis of 72 large, recent food webs, illustrates that published food webs can generally be described as basal‐rich, top‐poor ‘pyramids of species richness’, … " - Toward a trophic theory of species diversity

Toward a trophic theory of species diversity

Trait diversity shapes the carbon cycle - ScienceDirect

Web• Diverse community may not be complex if all species are clustered in a few trophic levels, forming a relatively simple food chain. • Highly complex and interconnected community may have many trophic levels, some of which can be compartmentalized. • In the tropical rainforests, herbivores are grouped based on the way they feed on plants WebJul 25, 2024 · The implications are that changes in species diversity and abundance at higher trophic levels should have no effect on diversity at lower trophic levels. However, for many terrestrial and aquatic ecosystems, ... 2015 …

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WebThis study presents a seven-step approach to identify and support local climate change (CC) responses in agriculture. The following seven steps comprise this approach: 1. Analyse past trends on the climatic factors and model the future trends. 2. Simulate the possible impacts of CC on the selected issue (s). WebJun 30, 2024 · Theory predicts that higher biodiversity in the tropics is maintained by specialized interactions among plants and their natural enemies that result in conspecific ... Relationships between measures of species diversity and CNDD, ... Toward a trophic theory of species diversity. Proc. Natl. Acad. Sci. U.S.A. 112, 11415–11422 ...

WebInteractions among predator species and their prey can lead to a host of linear and nonlinear effects. Understanding the conditions causing these effects is critical for assigning predator species to functional groups in ways that lead to predictive theory of predator diversity effects on trophic interactions. To this end, I provide a synthesis ... WebSep 1, 2015 · Bottom-Up Theory and Interspecific Competition. The bottom-up approach to understanding species diversity is epitomized by the work of Robert MacArthur and his …

WebToward a trophic theory of species diversity Author: John W. Terborgh Source: Proceedings of the National Academy of Sciences of the United States of America 2015 v.112 no.37 … WebApr 11, 2024 · Human impacts lead to systematic changes in the trait diversity and composition of ecological communities, resulting in a loss of large and long-lived species …

WebAn ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem.. A pyramid of energy shows how much energy is retained in the form of new biomass at each trophic level, while a pyramid …

WebApr 6, 2024 · Even if stability is defined as deviation from a physical average, stability can be low in the tropics when it is defined as deviation from an average that a species can tolerate. The theory of spatial heterogeneity assumes that there is a general increase in environmental complexity as one proceeds towards the tropics. pedia orthopedic near meWebscientific article published on September 2015 pedia reaso for blood chemWebMay 27, 2024 · First, the trophic TIB considers how diversity scaling varies across trophic position in a community, with species at higher trophic levels being most strongly influenced by island area. Second, further extensions have predicted how trait distributions, and hence functional diversity, should scale with area. pedia platinum pdf free downloadWebDec 1, 2024 · Toward a trophic theory of species diversity. Terborgh JW. Proc Natl Acad Sci U S A, 112(37):11415-11422, 01 Sep 2015 Cited by: 35 articles PMID: 26374788 PMCID: PMC4577191. Free to read. Predation increases multiple components of microbial diversity in activated sludge communities. Burian A, Pinn ... meaning of proactivityWebSep 26, 2024 · The application of meta-ecosystem theories to natural systems requires extending ... we can look at how moving towards finite topologies can lead to the realization that the connectivity and the structuring ... Species diversity within a given trophic level brings us closer to community ecology and provides an opportunity to ... meaning of probabilisticWebTrophic structure, the partitioning of biomass among trophic levels, is a major characteristic of ecosystems. Most studies of the forces that shape trophic structure emphasize either “bottom-up” or “top-down” regulation of populations and communities. Recent work has shown that these two forces are not mutually exclusive alternatives, but efforts to model … meaning of proactivelyWebSep 15, 2015 · Toward a trophic theory of species diversity. Efforts to understand the ecological regulation of species diversity via bottom-up approaches have failed to yield a … meaning of probable cause hearing