scholarly journals A spatiotemporal multispecies model of a semicontinuous response

2017 ◽  
Vol 67 (3) ◽  
pp. 705-722 ◽  
Author(s):  
Charlotte M. Jones‐Todd ◽  
Ben Swallow ◽  
Janine B. Illian ◽  
Mike Toms
Keyword(s):  
Multispecies Model

scholarly journals Performance of a state‐space multispecies model: What are the consequences of ignoring predation and process errors in stock assessments?

2019 ◽  
Vol 57 (1) ◽  
pp. 121-135 ◽  
Author(s):  
Vanessa Trijoulet ◽  
Gavin Fay ◽  
Timothy J. Miller
Keyword(s):  
State Space ◽  
Stock Assessments ◽  
Multispecies Model

A generalized multispecies model for the solar wind expansion

1999 ◽  
Author(s):  
François Leblanc ◽  
Daniel Hubert
Keyword(s):  
Solar Wind ◽  
Multispecies Model

scholarly journals The genus Xenopus as a multispecies model for evolutionary and comparative immunobiology of the 21st century

2011 ◽  
Vol 35 (9) ◽  
pp. 916-923 ◽  
Author(s):  
Jacques Robert ◽  
Nicholas Cohen
Keyword(s):  
21St Century ◽  
Multispecies Model

scholarly journals Elaboration of a Multispecies Model of Solid Tumor Growth with Tumor-Host Interactions

2013 ◽  
pp. 295-303
Author(s):  
A. Konstorum ◽  
S. A. Sprowl ◽  
M. L. Waterman ◽  
A. D. Lander ◽  
J. S. Lowengrub
Keyword(s):  
Tumor Growth ◽  
Solid Tumor ◽  
Solid Tumor Growth ◽  
Host Interactions ◽  
Multispecies Model

scholarly journals It’s Not the Destination, It’s the Journey: Multispecies Model Ensembles for Ecosystem Approaches to Fisheries Management

2021 ◽  
Vol 8 ◽  
Author(s):  
Jonathan C. P. Reum ◽  
Howard Townsend ◽  
Sarah Gaichas ◽  
Skyler Sagarese ◽  
Isaac C. Kaplan ◽  
...  
Keyword(s):  
Fisheries Management ◽  
Model Uncertainty ◽  
Algal Blooms ◽  
The United States ◽  
Lessons Learned ◽  
Reference Points ◽  
Atlantic Menhaden ◽  
Management Decision ◽  
Multispecies Model ◽  
Model Ensembles

As ecosystem-based fisheries management becomes more ingrained into the way fisheries agencies do business, a need for ecosystem and multispecies models arises. Yet ecosystems are complex, and model uncertainty can be large. Model ensembles have historically been used in other disciplines to address model uncertainty. To understand the benefits and limitations of multispecies model ensembles (MMEs), cases where they have been used in the United States to address fisheries management issues are reviewed. The cases include: (1) development of ecological reference points for Atlantic Menhaden, (2) the creation of time series to relate harmful algal blooms to grouper mortality in the Gulf of Mexico, and (3) fostering understanding of the role of forage fish in the California Current. Each case study briefly reviews the management issue, the models used and model synthesis approach taken, and the outcomes and lessons learned from the application of MMEs. Major conclusions drawn from these studies highlight how the act of developing an ensemble model suite can improve the credibility of multispecies models, how qualitative synthesis of projections can advance system understanding and build confidence in the absence of quantitative treatments, and how involving a diverse set of stakeholders early is useful for ensuring the utility of the models and ensemble. Procedures for review and uptake of information from single-species stock assessment models are well established, but the absence of well-defined procedures for MMEs in many fishery management decision-making bodies poses a major obstacle. The benefits and issues identified here should help accelerate the design, implementation, and utility of MMEs in applied fisheries contexts.

The potential to strengthen temperature reconstructions in ecoregions with limited tree line using a multispecies approach

2019 ◽  
Vol 92 (2) ◽  
pp. 583-597 ◽  
Author(s):  
M. Ross Alexander ◽  
Jessie K. Pearl ◽  
Daniel A. Bishop ◽  
Edward R. Cook ◽  
Kevin J. Anchukaitis ◽  
...  
Keyword(s):  
Species Diversity ◽  
Tree Ring ◽  
Similar Amount ◽  
Tree Line ◽  
Cool Season ◽  
Chamaecyparis Thyoides ◽  
Temperature Reconstructions ◽  
Multispecies Model ◽  
Explained Variance ◽  
Reconstruction Model

AbstractTree-ring reconstructions of temperature often target trees at altitudinal or latitudinal tree line where annual growth is broadly expected to be limited by and respond to temperature variability. Based on this principal, regions with sparse tree line would seem to be restricted in their potential to reconstruct past temperatures. In the northeastern United States, there are only two published temperature reconstructions. Previous work in the region reconstructing moisture availability, however, has shown that using a greater diversity of species can improve reconstruction model skill. Here, we use a network of 228 tree-ring records composed of 29 species to test the hypothesis that an increase in species diversity among the pool of predictors improves reconstructions of past temperatures. Chamaecyparis thyoides alone explained 31% of the variability in observed cool-season minimum temperatures, but a multispecies model increased the explained variance to 44%. Liriodendron tulipifera, a species not previously used for temperature reconstructions, explained a similar amount of variance as Chamaecyparis thyoides (12.9% and 20.8%, respectively). Increasing the species diversity of tree proxies has the potential for improving reconstruction of paleotemperatures in regions lacking latitudinal or elevational tree lines provided that long-lived hardwood records can be located.

Analytical Modeling of Calcium Carbonate Deposition for Laminar Falling Films and Turbulent Flow in Annuli: Part II—Multispecies Model

1991 ◽  
Vol 113 (3) ◽  
pp. 741-746 ◽  
Author(s):  
S. H. Chan ◽  
K. F. Ghassemi
Keyword(s):  
Experimental Data ◽  
Calcium Carbonate ◽  
Transport Model ◽  
Recent Experimental Data ◽  
Deposition Flux ◽  
Heated Plate ◽  
Carbonate Deposition ◽  
Multispecies Model ◽  
Calcium Carbonate Deposition ◽  
Good Agreement

The present study proposes a multispecies transport model to predict calcium carbonate deposition. The model has been applied to predict the deposition flux, the mean fouling layer thickness, and the profile of local fouling thickness along a heated plate of a laminar falling film. Good agreement is found when comparing with experimental data. Similarly, the model is applied to predict the fouling layer in a turbulent annulus flow system and a good agreement of the predicted results is also found with recent experimental data. Finally, solutions in dimensionless forms are presented to show the effects of various dimensionless parameters on calcium carbonate deposition.

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