Evolutionary assembly rules for fish life histories

Charnov, Eric L.; Gislason, Henrik; Pope, John G.

doi:10.1111/j.1467-2979.2012.00467.x

Cited by 156 publications

(227 citation statements)

References 34 publications

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“…The method of Charnov et al (2013), which produces age-specific estimates of M with the use of von Bertalanffy growth parameters, resulted in estimates of 0.65 for age-1 fish, 0.38 for age-5 fish, 0.34 for age-10 fish, and 0.33 for age-15 fish (Table 2). …”

Section: Growthmentioning

confidence: 99%

Age, growth, and mortality of gray triggerfish (Balistes capriscus) from the southeastern United States

Burton¹,

Potts²,

Carr³

et al. 2014

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Abstract-Gray triggerfish (Bali-stes (−0.33(t+1.58)) ). Natural mortality (M) estimated by Hewitt and Hoenig's longevity-based method that integrates all ages was 0.28. Age-specific M values, estimated with the method of Charnov and others, were 0.65, 0.45, 0.38, 0.34, and 0.33 for ages 1, 3, 5, 10, and 15, respectively. Gray triggerfish recruited fully to recreational fisheries by age 4 and to the commercial fishery by age 5. Estimates of total mortality averaged 0.95 across all fisheries for the years 1986-2011.

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Section: Growthmentioning

confidence: 99%

Age, growth, and mortality of gray triggerfish (Balistes capriscus) from the southeastern United States

Burton¹,

Potts²,

Carr³

et al. 2014

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“…We use the terms ecotype and diversi-86 fication rather than species and speciation to reflect the fact that our model is not concerned 87 with reproductive isolation. We characterize the ecotype by maturation size that is generally 88 recognized as one of the most important life history in fish populations (Charnov et al, 2012). …”

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confidence: 99%

Four types of interference competition and their impacts on the ecology and evolution of size-structured populations and communities

Zhang

Andersen

Dieckmann

et al. 2015

Journal of Theoretical Biology

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We investigate how four types of interference competition that affect foraging, metabolism, survival, and reproduction impact the ecology and evolution of size-structured populations. Surprisingly, even though all four types of interference competition reduce population bio-mass, interference competition at intermediate strengths sometimes significantly increases the abundance of adult individuals and the population's reproduction rate. We find that the evolu-tionary response to foraging and metabolic interference is smaller maturation size at low to intermediate interference intensity and larger maturation size at high interference intensity. The evolutionary response to survival and reproductive interference is always larger matura-tion size. We also investigate how the four types of interference competition impact the evolu-tionary dynamics and resultant structure of size-structured communities. Like other types of trait-mediated competition, all four types of interference competition can induce disruptive selection and thus initial diversification. Even though foraging and reproductive interference are more prone to induce initial diversification, they catalyze the formation of diverse com-munities with complex trophic structure only at high levels of interference intensity. By con-trast survival interference does so already at intermediate levels.Reproductive interference supports relatively smaller communities with simpler trophic structure. Taken together, our results demonstrate the importance of interference competition in ecology and evolution. Recent theoretical advances in evolutionary ecology have highlighted interference competition between individuals as a key factor promoting species coexistence and the emergence of diverse communities over evolutionary time scales. Due to a fundamental limitation of traditional unstructured population models, these advances build on the assumption that interference increases individual mortality. This, however, is only one out of several possibilities.In the submitted manuscript, we carry out the first systematic investigation of how different types of interference between individuals impact the ecology and evolution of populations and food webs. Building on an established physiologically structured population model, we show how four salient types of interference can be mechanistically modelled. We find that these differ significantly in their ecological and evolutionary impacts. In addition to providing new insights, we believe that this manuscript will be an important reference for future studies of interference competition and physiologically structured populations. This work has not been published or accepted for publication elsewhere, and is not under consideration for publication in another journal or book. The submission of this work for publication has been approved by all authors and relevant institutions.

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“…However, there is evidence that natural mortality is 141 higher for smaller individuals, and tends to decrease as the animals grow to larger sizes (with 142 a possible increase again towards the end of life; Charnov et al 2013, Charnov 2014). This 143 relationship can be described by:…”

Section: Exponentiation Of Equation 10 Results In: 117mentioning

confidence: 99%

A simple length-structured model based on life history ratios and incorporating size-dependent selectivity: application to spawning potential ratios for data-poor stocks

Hordyk

Ono

Prince

et al. 2016

Can. J. Fish. Aquat. Sci.

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Selectivity in fish is often size-dependent, which results in differential fishing mortality rates across fish of the same age, an effect known as “Lee’s Phenomenon”. We extend previous work on using length composition to estimate the spawning potential ratio (SPR) for data-limited stocks by developing a computationally efficient length-structured per-recruit model that splits the population into a number of subcohorts, or growth-type-groups, to account for size-dependent fishing mortality rates. Two simple recursive equations, using the life history ratio of the natural mortality rate to the von Bertalanffy growth parameter (M/K), were developed to generate length composition data, reducing the complexity of the previous approach. Using simulated and empirical data, we demonstrate that ignoring Lee’s Phenomenon results in overestimates of fishing mortality and negatively biased estimates of SPR. We also explored the behaviour of the model under various scenarios, including alternative life history strategies and the presence of size-dependent natural mortality. The model developed in this paper may be a useful tool to estimate the SPR for data-limited stock where it is not possible to apply more conventional methods.

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Evolutionary assembly rules for fish life histories

Cited by 156 publications

References 34 publications

Age, growth, and mortality of gray triggerfish (Balistes capriscus) from the southeastern United States

Age, growth, and mortality of gray triggerfish (Balistes capriscus) from the southeastern United States

Four types of interference competition and their impacts on the ecology and evolution of size-structured populations and communities

A simple length-structured model based on life history ratios and incorporating size-dependent selectivity: application to spawning potential ratios for data-poor stocks

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