Data from: A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes
Technological and methodological advances have facilitated the use of genetic data to infer census population size (Nc) in natural populations, particularly where traditional mark-and-recapture is challenging. The effective number of breeders (Nb) describes how many adults effectively contribute to...
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ftzenodo:oai:zenodo.org:4943514 2024-09-15T18:33:04+00:00 Data from: A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes Yates, Matthew Carl Bernos, Thais A. Fraser, Dylan J. 2017-05-26 https://doi.org/10.5061/dryad.136bm unknown Zenodo https://doi.org/10.1111/eva.12496 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.136bm oai:zenodo.org:4943514 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode Oncorhynchus tshawytscha Salvelinus fontinalis Salmo salar Inventory and Monitoring Conservation Biology Wildlife Management info:eu-repo/semantics/other 2017 ftzenodo https://doi.org/10.5061/dryad.136bm10.1111/eva.12496 2024-07-26T09:44:04Z Technological and methodological advances have facilitated the use of genetic data to infer census population size (Nc) in natural populations, particularly where traditional mark-and-recapture is challenging. The effective number of breeders (Nb) describes how many adults effectively contribute to a cohort and is often correlated with Nc. Predicting Nc from Nb or vice-versa in species with overlapping generations has important implications for conservation by permitting (i) estimation of the more difficult to quantify variable and (ii) inferences of Nb/Nc relationships in related species lacking data. We quantitatively synthesized Nb/Nc relationships in three salmonid fishes where sufficient data has recently accumulated. Mixed-effects models were analyzed in which each variable was included as a dependent variable or predictor term (Nb from Nc and vice versa). Species-dependent Nb/Nc slope estimates were significantly positive in two of three species; variation in species slopes were likely due to varying life histories and reinforce caution when inferring Nb/Nc from taxonomically-related species. Models provided maximum probable estimates for Nb and Nc for two species. However, study, population, and year effects explained substantial amounts of variation (39-57%). Consequently, prediction intervals were wide and included or were close to zero for all population sizes and species; model predictive utility was limited. Cost-benefit trade-offs when estimating Nb and/or Nc were also discussed using a real-world system example. Our findings based on salmonids suggest that no short-cuts currently exist when estimating population size; researchers should focus on quantifying the variable of interest or be aware of caveats when inferring the desired variable because of cost or logistics. We caution that the salmonid species examined share life-history traits that may obscure relationships between Nb and Nc. Sufficient data on other taxa were unavailable; additional research examining Nb/Nc relationships in species ... Other/Unknown Material Salmo salar Zenodo |
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Open Polar |
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Zenodo |
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unknown |
topic |
Oncorhynchus tshawytscha Salvelinus fontinalis Salmo salar Inventory and Monitoring Conservation Biology Wildlife Management |
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Oncorhynchus tshawytscha Salvelinus fontinalis Salmo salar Inventory and Monitoring Conservation Biology Wildlife Management Yates, Matthew Carl Bernos, Thais A. Fraser, Dylan J. Data from: A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes |
topic_facet |
Oncorhynchus tshawytscha Salvelinus fontinalis Salmo salar Inventory and Monitoring Conservation Biology Wildlife Management |
description |
Technological and methodological advances have facilitated the use of genetic data to infer census population size (Nc) in natural populations, particularly where traditional mark-and-recapture is challenging. The effective number of breeders (Nb) describes how many adults effectively contribute to a cohort and is often correlated with Nc. Predicting Nc from Nb or vice-versa in species with overlapping generations has important implications for conservation by permitting (i) estimation of the more difficult to quantify variable and (ii) inferences of Nb/Nc relationships in related species lacking data. We quantitatively synthesized Nb/Nc relationships in three salmonid fishes where sufficient data has recently accumulated. Mixed-effects models were analyzed in which each variable was included as a dependent variable or predictor term (Nb from Nc and vice versa). Species-dependent Nb/Nc slope estimates were significantly positive in two of three species; variation in species slopes were likely due to varying life histories and reinforce caution when inferring Nb/Nc from taxonomically-related species. Models provided maximum probable estimates for Nb and Nc for two species. However, study, population, and year effects explained substantial amounts of variation (39-57%). Consequently, prediction intervals were wide and included or were close to zero for all population sizes and species; model predictive utility was limited. Cost-benefit trade-offs when estimating Nb and/or Nc were also discussed using a real-world system example. Our findings based on salmonids suggest that no short-cuts currently exist when estimating population size; researchers should focus on quantifying the variable of interest or be aware of caveats when inferring the desired variable because of cost or logistics. We caution that the salmonid species examined share life-history traits that may obscure relationships between Nb and Nc. Sufficient data on other taxa were unavailable; additional research examining Nb/Nc relationships in species ... |
format |
Other/Unknown Material |
author |
Yates, Matthew Carl Bernos, Thais A. Fraser, Dylan J. |
author_facet |
Yates, Matthew Carl Bernos, Thais A. Fraser, Dylan J. |
author_sort |
Yates, Matthew Carl |
title |
Data from: A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes |
title_short |
Data from: A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes |
title_full |
Data from: A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes |
title_fullStr |
Data from: A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes |
title_full_unstemmed |
Data from: A critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes |
title_sort |
data from: a critical assessment of estimating census population size from genetic population size (or vice versa) in three fishes |
publisher |
Zenodo |
publishDate |
2017 |
url |
https://doi.org/10.5061/dryad.136bm |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_relation |
https://doi.org/10.1111/eva.12496 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.136bm oai:zenodo.org:4943514 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.136bm10.1111/eva.12496 |
_version_ |
1810474824049360896 |