Marine reserves help preserve genetic diversity after impacts derived from climate variability: Lessons from the pink abalone in Baja California

Munguía‐Vega, Adrián; Sáenz–Arroyo, Andrea; Greenley, Ashley P.; Espinoza-Montes, Jose Antonio; Palumbi, Stephen R.; Rossetto, Marisa; Micheli, Fiorenza

doi:10.1016/j.gecco.2015.07.005

Cited by 48 publications

(39 citation statements)

References 68 publications

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“…Such networks should also take genetic diversity into account, aiming to maximize genetic diversity within protected areas (Munguia‐Vega et al., ; Nielsen, Berger, Henriques, Selkoe, & von der Heyden, ; Pope, Riginos, Ovenden, Keyse, & Blomberg, ) as well as considering the connections between them (e.g., Beger et al., ). Our results show a high contribution to genetic diversity from two protected areas (Porquerolles and Corsica), although this was not observed in the Calanques zone, another protected area.…”

Section: Discussionmentioning

confidence: 99%

A multispecies approach reveals hot spots and cold spots of diversity and connectivity in invertebrate species with contrasting dispersal modes

et al. 2017

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Genetic diversity is crucial for species' maintenance and persistence, yet is often overlooked in conservation studies. Species diversity is more often reported due to practical constraints, but it is unknown if these measures of diversity are correlated. In marine invertebrates, adults are often sessile or sedentary and populations exchange genes via dispersal of gametes and larvae. Species with a larval period are expected to have more connected populations than those without larval dispersal. We assessed the relationship between measures of species and genetic diversity, and between dispersal ability and connectivity. We compiled data on genetic patterns and life history traits in nine species across five phyla. Sampling sites spanned 600 km in the northwest Mediterranean Sea and focused on a 50-km area near Marseilles, France. Comparative population genetic approaches yielded three main results. (i) Species without larvae showed higher levels of genetic structure than species with free-living larvae, but the role of larval type (lecithotrophic or planktotrophic) was negligible. (ii) A narrow area around Marseilles, subject to offshore advection, limited genetic connectivity in most species. (iii) We identified sites with significant positive contributions to overall genetic diversity across all species, corresponding with areas near low human population densities. In contrast, high levels of human activity corresponded with a negative contribution to overall genetic diversity. Genetic diversity within species was positively and significantly linearly related to local species diversity. Our study suggests that local contribution to overall genetic diversity should be taken into account for future conservation strategies.

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Section: Discussionmentioning

confidence: 99%

A multispecies approach reveals hot spots and cold spots of diversity and connectivity in invertebrate species with contrasting dispersal modes

et al. 2017

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“…Genetic data can also contribute to other measures of the effectiveness of MPAs. For example, higher genetic D r a f t diversity within MPAs, compared to non-protected areas, could be evidence of larger effective population sizes and therefore, in many cases, considered an indication of an effective MPA (Syms and Carr 2001;Munguía-Vega et al 2015). Additionally, genetic patterns of isolation by distance can be indicative of the amount of larval dispersal (Palumbi 2003;Kinlan and Gaines 2003) and genetic connectivity between MPAs and surrounding non-protected areas (Green et al 2015;Pujolar et al 2015;Calò et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Genomic tools for management and conservation of Atlantic cod in a coastal marine protected area

Sinclair-Waters

Bentzen

Morris

et al. 2018

Can. J. Fish. Aquat. Sci.

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Marine protected areas (MPAs) can serve as effective tools for the management and conservation of exploited marine species. The Gilbert Bay MPA in coastal Labrador was created to protect a genetically distinct population of Atlantic cod (Gadus morhua); however, decreases in abundance continue to occur potentially due to exploitation outside the MPA. We developed a single-nucleotide polymorphism (SNP) panel to identify Gilbert Bay cod in areas outside MPA boundaries where mixing with offshore cod occurs. In total, 361 individuals from Gilbert Bay, surrounding areas, and offshore were genotyped for 10 913 SNPs. Using FST rankings and guided regularized random forest, we selected 23 SNPs that together generate 100% accuracy in individual assignment and accurately estimate the proportion of Gilbert Bay cod in fishery samples from sites outside MPA boundaries: on average, fishery samples included 17.3% Gilbert Bay cod. Estimates of effective population size for the Gilbert Bay population ranged from 655 to 1114. Our findings demonstrate the power of using genomic approaches for management of an exploited marine species and enhancing the design of MPAs.

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“…Using the connectivity matrix, we calculated a suite of connectivity metrics to characterize connectivity among spatial features. Areas with a high in-degree may have higher genetic and species diversity (Kahilainen, Puurtinen, & Kotiaho, 2014;Munguía-Vega et al, 2015) as a result of the high number of incoming connections. To identify important stepping-stones that facilitate connectivity in a network, we calculated betweenness centrality (i.e., number of times a particular node served as a stepping-stone in the shortest paths between all other pairs of nodes in the network).…”

Section: Indicators Of Potential Connectivitymentioning

confidence: 99%

“…In-degree indicates the number of connections coming into each planning unit (i.e., sink) (Minor & Urban, 2008). Areas with a high in-degree may have higher genetic and species diversity (Kahilainen, Puurtinen, & Kotiaho, 2014;Munguía-Vega et al, 2015) as a result of the high number of incoming connections. However, planning units with high in-degree may be susceptible to outbreaks and invasive species (e.g., Hock, Wolff, Condie, Anthony, & Mumby, 2014).…”

Section: Indicators Of Potential Connectivitymentioning

confidence: 99%

Aligning marine spatial conservation priorities with functional connectivity across maritime jurisdictions

Maina

Gamoyo

Adams

et al. 2019

Conservat Sci and Prac

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Globally, maritime boundaries on oceans form the basis of governance and management of natural resources, yet the fish, and other marine resources neither conform nor confine to these artificial boundaries. As goods and services from marine life continue to retrogress under the intense human exploitation and changing global environment, resilience could be supported through establishment of a functionally connected network of marine reserves across maritime jurisdictions. While the establishment of protected areas within the exclusive economic zones (EEZ) is expanding, mechanisms that would allow governments to conserve marine areas beyond national jurisdictions are currently inadequate.Consequently, implementing marine reserves is largely confined within territorial waters, high connectivity among contiguous maritime zones notwithstanding. As the global focus shifts toward achieving sustainable development goals for the oceans, there is a need for region-specific approaches to area-based biodiversity conservation that extends the scope of protection to areas in the high seas beyond the EEZ. Using simulations of functional connectivity and seafloor geomorphology, we present and apply in the Western Indian Ocean (WIO) region a contextual approach to regional marine conservation planning to inform a more effective regional marine conservation across maritime zones. K E Y W O R D Sareas beyond national jurisdiction, fisheries management, functional connectivity, high seas, larval dispersal, marine conservation planning, marine protected areas, ocean governance, regional MPA, seafloor geomorphic habitats, Western Indian Ocean

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Marine reserves help preserve genetic diversity after impacts derived from climate variability: Lessons from the pink abalone in Baja California

Cited by 48 publications

References 68 publications

A multispecies approach reveals hot spots and cold spots of diversity and connectivity in invertebrate species with contrasting dispersal modes

A multispecies approach reveals hot spots and cold spots of diversity and connectivity in invertebrate species with contrasting dispersal modes

Genomic tools for management and conservation of Atlantic cod in a coastal marine protected area

Aligning marine spatial conservation priorities with functional connectivity across maritime jurisdictions

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