Data from: When should species richness be energy limited, and how would we know?
| Main Authors: | Hurlbert, Allen H., Stegen, James C. |
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| Format: | info dataset Journal |
| Terbitan: |
, 2015
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5010196 |
Daftar Isi:
- Energetic constraints are fundamental to ecology and evolution, and empirical relationships between species richness and estimates of available energy (i.e. resources) have led some to suggest that richness is energetically constrained. However, the mechanism linking energy with richness is rarely specified and predictions of secondary patterns consistent with energy-constrained richness are lacking. Here, we lay out the necessary and sufficient assumptions of a causal relationship linking energy gradients to richness gradients. We then describe an eco-evolutionary simulation model that combines spatially explicit diversification with trait evolution, resource availability and assemblage-level carrying capacities. Our model identified patterns in richness and phylogenetic structure expected when a spatial gradient in energy availability determines the number of individuals supported in a given area. A comparison to patterns under alternative scenarios, in which fundamental assumptions behind energetic explanations were violated, revealed patterns that are useful for evaluating the importance of energetic constraints in empirical systems. We use a data set on rockfish (genus Sebastes) from the northeastern Pacific to show how empirical data can be coupled with model predictions to evaluate the role of energetic constraints in generating observed richness gradients.
- READMERaw simulation results, no zero sum, tropical originno_zero_sum_tropical_sims.zipRaw simulation results, no zero sum, temperate originno_zero_sum_temperate_sims.zipRaw simulation results, zero sum, tropical origin, 1st of 2 fileszero_sum_tropical_sims_1_of_2.zipRaw simulation results, zero sum, tropical origin, 2nd of 2 fileszero_sum_tropical_sims_2_of_2.zipRaw simulation results, zero sum, temperate origin, 1st of 2 fileszero_sum_temperate_sims_1_of_2.zipRaw simulation results, zero sum, temperate origin, 2nd of 2 fileszero_sum_temperate_sims_2_of_2.zipSimulation analysis, no zero sum, tropical originno_zero_sum_tropical_analysis.zipSimulation analysis, no zero sum, temperate originno_zero_sum_temperate_analysis.zipSimulation analysis, zero sum, tropical originzero_sum_tropical_analysis.zipSimulation analysis, zero sum, temperate originzero_sum_temperate_analysis.zipPhylogenetic tree of genus SebastesObject of class 'phylo' described in Ingram, T. 2011. Speciation along a depth gradient in a marine adaptive radiation. Proc Roy Soc B: 278: 613-618. doi:10.1098/rspb.2010.1127Sebastes_tree_Ingram2011PRSB.phyDistributional data for Sebastes in the Northeast PacificLatitudinal ranges (and depth ranges) of species as compiled in Ingram, T. 2011. Speciation along a depth gradient in a marine adaptive radiation. Proc Roy Soc B: 278: 613-618. doi:10.1098/rspb.2010.1127Sebastes_distrib_data.csv