Spondylids of Eastern Pacific Ocean

Lodeiros, César; Soria, Gaspar; Valentich-Scott, Paul; Munguía‐Vega, Adrián; Cabrera, Jonathan Santana; Cudney-Bueno, Richard; Loor, Alfredo; Márquez, Adrian; Sonnenholzner, Stanislaus

doi:10.2983/035.035.0203

Cited by 21 publications

(17 citation statements)

References 19 publications

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“…3), yet we suggest SCP applications should consider identifying and explicitly targeting selfrecruitment areas (Zamborain-Mason et al, 2017). Further, assigning higher objectives to upstream sites showing high centrality makes sense from a metapopulation point of view, yet the relation of centrality with genetic diversity is inverse in the RGI, at least for some species (Lodeiros et al, 2016). Thus this approach would be favoring protection of sites with relatively lower genetic diversity and potentially reduced evolutionary capacity to adapt.…”

Section: Discussionmentioning

confidence: 99%

“…These are species of high conservation and commercial value in the region, and are well studied, including their patterns of larval connectivity ; spatially-explicit information on their larval dispersal patterns is derived from coupled biological-oceanographic models that reliably predict genetic diversity and structure within these species in the northern Gulf of California (Lodeiros et al, 2016, Munguía-Vega et al, 2015, Turk-Boyer et al, 2014. These three species spawn during spring-summer (cyclonic phase of the gyre), but have different larval dispersal patterns, i.e.…”

Section: Setting Conservation Goals and Objectivesmentioning

confidence: 99%

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Designing connected marine reserves in the face of global warming

Álvarez‐Romero¹,

Munguía‐Vega²,

Beger³

et al. 2018

Preprint

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. 2018. Designing connected marine reserves in the face of global warming. Global Change Biology 24: e671-e691. https://doi.org/10. 1111/gcb.13989 Designing connected marine reserves in the face of global warming Jorge G. Álvarez-Romero AbstractMarine reserves are widely used to protect species important for conservation and fisheries and to help maintain ecological processes that sustain their populations, including recruitment and dispersal. Achieving these goals requires well-connected networks of marine reserves that maximize larval connectivity, thus allowing exchanges between populations and recolonization after local disturbances. However, global warming can disrupt connectivity by shortening potential dispersal pathways through changes in larval physiology. These changes can compromise the performance of marine reserve networks, thus requiring adjusting their design to account for ocean warming. To date, empirical approaches to marine prioritization have not considered larval connectivity as affected by global warming. Here, we propose a framework for designing marine reserve networks that integrates graph theory and changes in larval connectivity due to potential reductions in planktonic larval duration (PLD) associated with ocean warming, given current socioeconomic constraints. Using the Gulf of California as case study, we assess the benefits and costs of adjusting networks to account for connectivity, with and without ocean warming. We compare reserve networks designed to achieve representation of species and ecosystems with networks designed to also maximize connectivity under current and future ocean-warming scenarios. Our results indicate that current larval connectivity could be reduced significantly under ocean warming because of shortened PLDs. Given the potential changes in connectivity, we show that our graph-theoretical approach based on centrality (eigenvector and distance-weighted fragmentation) of habitat patches can help design better-connected marine reserve networks for the future with equivalent costs. We found that maintaining dispersal connectivity incidentally through representation-only reserve design is unlikely, particularly in regions with strong asymmetric patterns of dispersal connectivity. Our results support previous studies suggesting that, given potential reductions in PLD due to ocean warming, future marine reserve networks would require more and/or larger reserves in closer proximity to maintain larval connectivity.

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Section: Discussionmentioning

confidence: 99%

Section: Setting Conservation Goals and Objectivesmentioning

confidence: 99%

Designing connected marine reserves in the face of global warming

Álvarez‐Romero¹,

Munguía‐Vega²,

Beger³

et al. 2018

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Biophysical models and genetic studies indicate that larval dispersal kernels in the GOC are not spatially symmetrical but are highly constrained in particular routes by the direction of the currents driven by the narrow shape of the Gulf, particularly for species that spawn during a single season (Soria et al 2012;Munguia-Vega et al 2014, 2015a, 2018TurkBoyer et al 2014;Lodeiros et al 2016;AlvarezRomero et al 2018) (Fig. 5).…”

Section: Larval Dispersalmentioning

confidence: 99%

“…Thus as the distance between reserves increases, the amount of larvae they exchange (larval connectivity) decreases. However, given the strong, consistent asymmetric currents in the GOC, geographic distance alone is a poor predictor of ecological and genetic connectivity, because oceanographic distance follows the direction of the predominant current flow , 2018Soria et al 2014;Lodeiros et al 2016). Therefore, marine reserves in the GOC should be spaced using mean dispersal distances in the direction of the predominant flow (Table 1, Guideline 10).…”

Section: Larval Dispersalmentioning

confidence: 99%

“…Riginos 2005). Further research is also needed into the extent of trade-offs that might be required in the GOC when trying to achieve multiple goals, for example between protecting upstream larval sources for enhancing fisheries , 2018 or downstream sites that may contain higher genetic diversity and adaptation potential (Munguia-Vega et al 2015a;Lodeiros et al 2016). …”

Section: Future Research Prioritiesmentioning

confidence: 99%

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Ecological guidelines for designing networks of marine reserves in the unique biophysical environment of the Gulf of California

Munguía‐Vega

Green

Suárez-Castillo³

et al. 2018

Rev Fish Biol Fisheries

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No-take marine reserves can be powerful management tools, but only if they are well designed and effectively managed. We review how ecological guidelines for improving marine reserve design can be adapted based on an area's unique evolutionary, oceanic, and ecological characteristics in the Gulf of California, Mexico. We provide ecological guidelines to maximize benefits for fisheries management, biodiversity conservation and climate change adaptation. These guidelines include: representing 30% of each major habitat (and multiple examples of each) in marine reserves within each of three biogeographic subregions; protecting critical areas in the life cycle of focal species (spawning and nursery areas) and sites with unique biodiversity; and establishing reserves in areas where local threats can be managed effectively. Given that strong, asymmetric oceanic currents reverse direction twice a year, to maximize 123Rev Fish Biol Fisheries (2018) 28:749-776 https://doi.org/10.1007/s11160-018-9529-y( 0123456789().,-volV) (0123456789().,-volV)

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Cold‐water diving in the tropics? External auditory exostoses among the pre‐Columbian inhabitants of Panama

Smith-Guzmán

Cooke

2018

American J Phys Anthropol

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Objectives: The appearance of external auditory exostoses archaeologically has been attributed to aquatic activities in middle latitudes. However, recent clinical research implicates low sea surface temperatures, especially below a threshold of 19 C, as a stronger predictor of ear exostosis development than latitude. Here, we examine the frequency of external auditory exostoses in human remains from nine pre-Columbian archaeological sites in Panama, representing individuals from a warm, tropical region. Materials and methods:External auditory exostoses were recorded as present when an abnormal bony growth was observed macroscopically within the ear canal. The presence of exostoses was compared by right and left side, geographical region, sex, and degree of stenosis.Results: A total of 125 adult individuals made up the observable sample analyzed in this study.Exostoses were observed in seven males and one female. All individuals affected by this pathology were excavated from mortuary contexts along the Gulf of Panama-a region characterized by intense cold water upwelling in the dry season.Discussion: This study suggests that external auditory exostoses in pre-Columbian Panama affected individuals involved in habitual aquatic activities in the cold, upwelled waters of the Gulf of Panama. These activities appear to be almost exclusively dominated by male individuals.Ethnohistorical and archaeological records point to marine shell resource acquisition by deepwater diving as the activity driving exostosis development in pre-Columbian Panama. K E Y W O R D Sactivity markers, auditory exostosis, diving, Panama, upwelling

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Spondylids of Eastern Pacific Ocean

Cited by 21 publications

References 19 publications

Designing connected marine reserves in the face of global warming

Designing connected marine reserves in the face of global warming

Ecological guidelines for designing networks of marine reserves in the unique biophysical environment of the Gulf of California

Cold‐water diving in the tropics? External auditory exostoses among the pre‐Columbian inhabitants of Panama

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