Plan de Manejo para la Conservación y Uso Sostenible del Lobo Marino de Galápagos en la Isla San Cristóbal 2025–2030

Álava, J. J., & Salazar, S. (2006). Status and conservation of otariids in Ecuador and the Galapagos Islands. In A. W. Trites, S. K. Atkinson, D. P. Demaster et al. (Eds.), Sea lions of the world (pp. 495–519). Alaska Sea Grant College Program.

Álava, J. J., Palomera, C., Bendell, L., & Ross, P. S. (2014). Pollution as an emerging threat for the conservation of the Galapagos Marine Reserve: Environmental impacts and management perspectives. In J. Denkinger & L. Vinueza (Eds.), The Galapagos Marine Reserve: Social and ecological interactions in the Galapagos Islands (pp. 247–283). Springer.

Álava, J. J., & Ross, P. S. (2018). Pollutants in tropical marine mammals of the Galápagos Islands, Ecuador: An ecotoxicological quest to the Last Eden. In M. C. Fossi & C. Panti (Eds.), Marine mammal ecotoxicology (pp. 213–234). Academic Press.

Álava, J. J., McMullen, K., Jones, J., Barragán-Paladines, M. J., Hobbs, C., Tirape, A., et al. (2023). Multiple anthropogenic stressors in the Galápagos Islands’ complex social–ecological system: Interactions of marine pollution, fishing pressure, and climate change with management recommendations. Integrated Environmental Assessment and Management, 19(4), 870–895. [https://doi.org/10.1002/ieam.4661](https://doi.org/10.1002/ieam.4661)

Álava, J. J., Tirapé, A., Denkinger, J., Calle, P., Rosero, P., Salazar, S., Fair, P. A., & Raverty, S. (2024). Endangered Galápagos sea lions and fur seals under the siege of lethal avian flu: A cautionary note on emerging infectious viruses in endemic pinnipeds of the Galápagos Islands. Frontiers in Veterinary Science, 11, 1457035. [https://doi.org/10.3389/fvets.2024.1457035](https://doi.org/10.3389/fvets.2024.1457035)

Alfaro-Núñez, A., Astorga, D., Cáceres-Farías, L., Bastidas, L., Soto-Villegas, C., Macay, K., et al. (2021). Microplastic pollution in seawater and marine organisms across the tropical Eastern Pacific and Galápagos. Scientific Reports, 11(1), 6424. [https://doi.org/10.1038/s41598-021-85939-3](https://doi.org/10.1038/s41598-021-85939-3)

Alves, F., Rosso, M., Li, S., & Nowacek, D. P. (2022). A sea of possibilities for marine megafauna. Science, 375(6579), 391–392. [https://doi.org/10.1126/science.abn6022](https://doi.org/10.1126/science.abn6022)

Arnés-Urgelles, C., Páez-Rosas, D., Barahona, D., & Salinas-de-Leon, P. (2020). First direct evidence of a Galapagos sea lion (Zalophus wollebaeki) predated by a Galapagos shark (Carcharhinus galapagensis). Aquatic Mammals, 46(3), 254–258. [https://doi.org/10.1578/AM.46.3.2020.254](https://doi.org/10.1578/AM.46.3.2020.254)

Asamblea Nacional del Ecuador. (2008). Constitución de la República del Ecuador. Registro Oficial N.º 449, 20 de octubre de 2008. [https://www.defensoria.gob.ec/wp-content/uploads/2022/11/Constitucion-de-la-Republica-del-Ecuador.pdf](https://www.defensoria.gob.ec/wp-content/uploads/2022/11/Constitucion-de-la-Republica-del-Ecuador.pdf)

Asamblea Nacional del Ecuador. (2016). Código Orgánico del Ambiente (COA). Registro Oficial N.º 983, 21 de diciembre de 2016.

Blakeway, J.-A., Arnould, J. P., Hoskins, A. J., Martin-Cabrera, P., Sutton, G. J., Huckstadt, L. A., et al. (2021). Influence of hunting strategy on foraging efficiency in Galapagos sea lions. PeerJ, 9, e11206. [https://doi.org/10.7717/peerj.11206](https://doi.org/10.7717/peerj.11206)

Ceballos, G., Pompa, S., Espinoza, E., et al. (2010). Extralimital distribution of Galapagos (Zalophus wollebaeki) and northern (Eumetopias jubatus) sea lions in Mexico. Aquatic Mammals, 36(2), 188–194. [https://doi.org/10.1578/AM.36.2.2010.188](https://doi.org/10.1578/AM.36.2.2010.188)

Chilvers, B. L., Robertson, B. C., Wilkinson, I. S., & Duignan, P. J. (2007). Growth and survival of New Zealand sea lions (Phocarctos hookeri): Birth to 3 months. Polar Biology, 30, 459–469. [https://doi.org/10.1007/s00300-006-0203-9](https://doi.org/10.1007/s00300-006-0203-9)

Consejo de Gobierno del Régimen Especial de Galápagos. (2015). Plan Galápagos: Plan de desarrollo sustentable y ordenamiento territorial del Régimen Especial de Galápagos (Resolución N.º 025-CGREG-03-IX-2015, 3 de septiembre de 2015). Consejo de Gobierno del Régimen Especial de Galápagos.

Costa, D. P. (2009). Energetics. In W. F. Perrin, B. Wursig & J. G. M. Thewissen (Eds.), Encyclopedia of marine mammals (pp. 383–391). Academic Press.

Culda, C., Dionnet, R., Barbu, A., Cârstolovean, A., Dan, T., Grijalva, J., Espin, P., Vinueza, L., Cruz, M., Páez-Rosas, D., Leon, R., & Mihalca, A. (2022). The presence of Dirofilaria immitis in domestic dogs on San Cristóbal Island: A potential threat to the endangered Galapagos sea lion. Pathogens, 11(11), 1287. [https://doi.org/10.3390/pathogens12070856](https://doi.org/10.3390/pathogens12070856)

Denkinger, J., Gordillo, L., Montero-Serra, I., Murillo, J. C., Guevara, N., Hirschfeldm, M., et al. (2015). Urban life of Galapagos sea lions (Zalophus wollebaeki) on San Cristobal Island, Ecuador: Colony trends and threats. Journal of Sea Research, 105, 10–14. [https://doi.org/10.1016/j.seares.2015.07.004](https://doi.org/10.1016/j.seares.2015.07.004)

Denkinger, J., Guevara, N., Ayala, S., Murillo, J. C., Hirschfeld, M., Montero-Serra, I., et al. (2017). Pup mortality and evidence for pathogen exposure in Galapagos sea lions (Zalophus wollebaeki) on San Cristobal Island, Galapagos, Ecuador. Journal of Wildlife Diseases, 53(3), 491–498. [https://doi.org/10.7589/2016-05-092](https://doi.org/10.7589/2016-05-092)

Dellinger, T., & Trillmich, F. (1999). Fish prey of the sympatric Galapagos fur seals and sea lions: Seasonal variation and niche separation. Canadian Journal of Zoology, 77(8), 1204–1216. [https://doi.org/10.1139/z99-095](https://doi.org/10.1139/z99-095)

Dirección del Parque Nacional Galápagos (DPNG). (2014). Plan de manejo de las áreas protegidas de Galápagos para el buen vivir.

Dirección del Parque Nacional Galápagos (DPNG). (2022). Estatuto orgánico de gestión organizacional por procesos DPNG. Resolución N.º 0046, 16 de octubre de 2022.

Doney, S. C., Ruckelshaus, M., Emmett-Duffy, J., Barry, J. P., Chan, F., English, C. A., et al. (2012). Climate change impacts on marine ecosystems. Annual Review of Marine Science, 4, 11–37. [https://doi.org/10.1146/annurev-marine-041911-111611](https://doi.org/10.1146/annurev-marine-041911-111611)

Drago, M., Franco-Trecu, V., Cardona, L., et al. (2016). Stable isotopes reveal long-term fidelity to foraging grounds in the Galapagos sea lion (Zalophus wollebaeki). PLoS One, 11, e0147857. [https://doi.org/10.1371/journal.pone.0147857](https://doi.org/10.1371/journal.pone.0147857)

Elorriaga-Verplancken, F., Morales-Vázquez, J., Ortega-Ortiz, C., Llamas-González, M., Meza-Yáñez, R., & Páez-Rosas, D. (2022). Northernmost record of the Galapagos sea lion (Zalophus wollebaeki): Sightings along the Mexican Central Pacific and the Gulf of California during La Niña conditions. Aquatic Mammals, 48(6), 478–484. [https://doi.org/10.1578/AM.48.6.2022.478](https://doi.org/10.1578/AM.48.6.2022.478)

Escobar-Camacho, D., Rosero, P., Castrejón, M., Mena, C. F., & Cuesta, F. (2021). Oceanic islands and climate: Using a multicriteria model of drivers of change to select key conservation areas in Galapagos. Regional Environmental Change, 21(2), 47. [https://doi.org/10.1007/s10113-021-01768-0](https://doi.org/10.1007/s10113-021-01768-0)

Forryan, A., Naveira-Garabato, A. C., Vic, C., Nurser, A. G., & Hearn, A. R. (2021). Galápagos upwelling driven by localized wind-front interactions. Scientific Reports, 11(1), 1277. [https://doi.org/10.1038/s41598-020-80609-2](https://doi.org/10.1038/s41598-020-80609-2)

Gregory, T., Livingston, I., Hawkins, E., Loyola, A., Cave, A., Vaden, S., Deresienski, D., Breen, M., Riofrío-Lazo, M., Lewbart, G., & Páez-Rosas, D. (2023). Dirofilaria immitis identified in Galapagos sea lions: A wildlife health and conservation concern. Journal of Wildlife Diseases, 59(3), 487–494. [https://doi.org/10.7589/JWD-D-22-00119](https://doi.org/10.7589/JWD-D-22-00119)

Gobierno Autónomo Descentralizado de San Cristóbal. (2021). Manejo responsable de la fauna urbana del cantón San Cristóbal. Registro Oficial, Segundo Suplemento N.º 503, 27 de julio de 2021.

Gobierno Autónomo Descentralizado de San Cristóbal. (2022). Plan de uso y gestión del suelo 2020–2030 del cantón San Cristóbal. Resolución del 14 de agosto de 2022.

Jefferson, T., Webber, M., & Pitman, R. (2008). Marine mammals of the world: A comprehensive guide to their identification. Elsevier.

Jeglinski, J. W., Goetz, K. T., Werner, C., Costa, D. P., & Trillmich, F. (2013). Same size–same niche? Foraging niche separation between sympatric juvenile Galapagos sea lions and adult Galapagos fur seals. Journal of Animal Ecology, 82, 694–706. [https://doi.org/10.1111/1365-2656.12019](https://doi.org/10.1111/1365-2656.12019)

Jeglinski, J. W., Wolf, J. B., Werner, C., et al. (2015). Differences in foraging ecology align with genetically divergent ecotypes of a highly mobile marine top predator. Oecologia, 179(4), 1041–1052. [https://doi.org/10.1007/s00442-015-3424-1](https://doi.org/10.1007/s00442-015-3424-1)

Mena, C. F., Quiroga, D., & Walsh, S. J. (2020). Threats to sustainability in the Galapagos Islands: A social–ecological perspective. In F. O. Sarmiento & L. M. Florich (Eds.), The Elgar companion to geography, transdisciplinarity and sustainability (pp. 342–358). Edward Elgar Publishing Limited.

Ministerio de Turismo del Ecuador. (2016). Reglamento de guianza turística para Régimen Especial de Galápagos. Registro Oficial N.º 728, 7 de abril de 2016.

Montero-Serra, I., Páez-Rosas, D., Murillo, J. C., et al. (2014). Environment-driven changes in terrestrial habitat use and distribution of the Galapagos sea lion. Endangered Species Research, 24(1), 9–19. [https://doi.org/10.3354/esr00573](https://doi.org/10.3354/esr00573)

Moreira-Mendieta, A., Garcia-Garin, O., Muñoz-Pérez, J. P., Urquía, D. O., Drago, M., Borrell, A., et al. (2023). Detection and quantification of microplastic pollution in the endangered Galapagos sea lion. Science of the Total Environment, 896, 166223. [https://doi.org/10.1016/j.scitotenv.2023.166223](https://doi.org/10.1016/j.scitotenv.2023.166223)

Muñoz-Pérez, J. P., Lewbart, G. A., Alarcón-Ruales, D., Skehel, A., Cobos, E., Rivera, R., et al. (2023). Galápagos and the plastic problem. Frontiers in Sustainability, 4. [https://doi.org/10.3389/frsus.2023.1091516](https://doi.org/10.3389/frsus.2023.1091516)

Nieto-Claudin, A., Deem, S. L., Rodríguez, C., Cano, S., Moity, N., Cabrera, F., et al. (2021). Antimicrobial resistance in Galapagos tortoises as an indicator of the growing human footprint. Environmental Pollution, 284, 117453. [https://doi.org/10.1016/j.envpol.2021.117453](https://doi.org/10.1016/j.envpol.2021.117453)

Osterhaus, A., Groen, J., Spijkers, H., Broeders, H., UytdeHaag, F., de Vries, P., et al. (1990). Mass mortality in seals caused by a newly discovered virus-like morbillivirus. Veterinary Microbiology, 23(1–4), 343–350. [https://doi.org/10.1016/0378-1135(90)90165-R](https://doi.org/10.1016/0378-1135%2890%2990165-R)

Páez-Rosas, D., & Aurioles-Gamboa, D. (2010). Alimentary niche partitioning in the Galapagos sea lion (*Zalophus wollebaeki*). Marine Biology, 157(12), 2769–2781. [https://doi.org/10.1007/s00227-010-1535-0](https://doi.org/10.1007/s00227-010-1535-0)

Páez-Rosas, D., Aurioles-Gamboa, D., Álava, J. J., et al. (2012). Stable isotopes indicate differing foraging strategies in two sympatric otariids of the Galapagos Islands. Journal of Experimental Marine Biology and Ecology, 424, 44–52. [https://doi.org/10.1016/j.jembe.2012.05.001](https://doi.org/10.1016/j.jembe.2012.05.001)

Páez-Rosas, D., Rodríguez-Pérez, M., & Riofrío-Lazo, M. (2014). Competition influence in the segregation of the trophic niche of otariids: A case study using isotopic bayesian mixing models in Galapagos pinnipeds. Rapid Communication in Mass Spectrometry, 28(23), 2550–2558. [https://doi.org/10.1002/rcm.7047](https://doi.org/10.1002/rcm.7047)

Páez-Rosas, D., & Aurioles-Gamboa, D. (2014). Spatial variation in the foraging behaviour of the Galapagos sea lions (Zalophus wollebaeki) assessed using scat collections and stable isotope analysis. Journal of the Marine Biological Association of the United Kingdom, 94, 1099–1100. [https://doi.org/10.1017/S002531541300163X](https://doi.org/10.1017/S002531541300163X)

Páez-Rosas, D., Villegas-Amtmann, S., & Costa, D. (2017). Intraspecific variation in feeding strategies of Galapagos sea lions: A case of trophic specialization. PLoS One, 12(10), e0185165. [https://doi.org/10.1371/journal.pone.0185165](https://doi.org/10.1371/journal.pone.0185165)

Páez-Rosas, D., & Guevara, N. (2017). Management strategies and conservation status of Galapagos sea lion populations at San Cristóbal Island, Galapagos, Ecuador. In J. J. Álava (Ed.), Tropical pinnipeds: Bio-ecology, threats and conservation (1st ed., pp. 159–175). CRC Press/Taylor & Francis Group.

Páez-Rosas, D., Moreno-Sánchez, X., Tripp-Valdez, A., Elorriaga-Verplacken, F., & Carranco-Narváez, S. (2020). Changes in the Galapagos sea lion diet as a response to El Niño-Southern Oscillation around the Archipelago. Regional Studies in Marine Science, 40, 101485. [https://doi.org/10.1016/j.rsma.2020.101485](https://doi.org/10.1016/j.rsma.2020.101485)

Páez-Rosas, D., Torres, J., Espinoza, E., Marchetti, A., Seim, H., & Riofrío-Lazo, M. (2021). Declines and recovery in endangered Galapagos pinnipeds during the El Niño event. Scientific Reports, 11(1), 8785. [https://doi.org/10.1038/s41598-021-88350-0](https://doi.org/10.1038/s41598-021-88350-0)

Peterson, R. S., & Bartholomew, G. A. (1967). The natural history and behavior of the California sea lion. American Society of Mammalogists, Special Publication No. 1.

Reijnders, P., Brasseur, S., van der Torn, J., van der Wolf, Boyd, I., Harwood, J., Lavigne, D., et al. (1993). Status survey and conservation action plan: Seals, fur seals, sea lions, and walrus. IUCN.

Riedman, M. (1990). The pinnipeds: Seals, sea lions and walruses. University of California Press.

Riofrío-Lazo, M., Arreguín-Sánchez, F., & Páez-Rosas, D. (2017). Population abundance of the endangered Galapagos sea lion Zalophus wollebaeki in the southeastern Galapagos Archipelago. PLoS One, 12(1), e0168829. [https://doi.org/10.1371/journal.pone.0168829](https://doi.org/10.1371/journal.pone.0168829)

Riofrío-Lazo, M., & Páez-Rosas, D. (2021). Galapagos sea lions and fur seals, adapted to a variable world. In C. Campagna & R. G. Harcourt (Eds.), Ethology and behavioral ecology of otariids and the odobenid: Ethology and behavioral ecology of marine mammals (pp. 643–661). Springer.

Riofrío-Lazo, M., Reck, G., Páez-Rosas, D., Zetina-Rejón, M. J., Del Monte-Luna, P., Reyes, H., Murillo, J. C., Hernández-Padilla, J. C., & Arreguín-Sánchez, F. (2021). Food web modeling of the southeastern Galapagos shelf ecosystem. Ecological Indicators, 132, 108270. [https://doi.org/10.1016/j.ecolind.2021.108270](https://doi.org/10.1016/j.ecolind.2021.108270)

Riofrío-Lazo, M., & Páez-Rosas, D. (2023). Galapagos pinnipeds, challenges to their survival. In Endangered species – Present status*. IntechOpen.

Ruiz-Sáenz, J., Barragán, V., Grijalva-Rosero, J., Diaz, E., & Páez-Rosas, D. (2023). Seroconversion in Galapagos sea lions (Zalophus wollebaeki) confirms the presence of canine distemper virus in rookeries of San Cristóbal Island. Animals, 13(23), 3657. [https://doi.org/10.3390/ani13233657](https://doi.org/10.3390/ani13233657)

Salinas-de-León, P., Fierro-Arcos, D., Suarez-Moncada, J., Proaño, A., Guachisaca-Salinas, J., & Páez-Rosas, D. (2019). A matter of taste: Spatial and ontogenetic variations on the trophic ecology of the tiger shark at the Galapagos Marine Reserve. PLoS One, 17(5), e0268666. [https://doi.org/10.1371/journal.pone.0222754](https://doi.org/10.1371/journal.pone.0222754)

Sarzosa, S., Duignan, P., DeRango, G., Espinoza, E., Loyola, A., Rueda, D., Ríos, C., Field, C., & Páez-Rosas, D. (2021). Occurrence of Mycoplasmas in Galapagos sea lions (Zalophus wollebaeki) and their association with other respiratory pathogens. Journal of Wildlife Diseases, 57(3), 623–627. [https://doi.org/10.7589/JWD-D-20-00081](https://doi.org/10.7589/JWD-D-20-00081)

Schipper, J., Chanson, J. S., Chiozza, F., Cox, N. A., Hoffmann, M., Katariya, V., et al. (2008). The status of the world’s land and marine mammals: Diversity, threat, and knowledge. Science, 322(5899), 225–230. [https://doi.org/10.1126/science.1165115](https://doi.org/10.1126/science.1165115)

Schwarz, J., Mews, S., DeRango, J., Piedrahita, P., Páez-Rosas, D., & Krüger, O. (2021). Individuality counts: A new comprehensive approach to foraging strategies of a tropical marine predator. Oecologia, 195, 313–325. [https://doi.org/10.1007/s00442-021-04850-w](https://doi.org/10.1007/s00442-021-04850-w)

Schwarz, J., DeRango, E., Zenth, F., Kalberer, S., Hoffmann, J., Mews, S., Piedrahita, P., Trillmich, F., Páez-Rosas, D., Thiboult, A., & Krüger, O. (2022). A stable foraging polymorphism buffers Galápagos sea lions against environmental change. Current Biology, 32(7), 1623–1628. [https://doi.org/10.1016/j.cub.2022.02.007](https://doi.org/10.1016/j.cub.2022.02.007)

Simeone, C. A., Gulland, F. M., Norris, T., & Rowles, T. K. (2015). A systematic review of changes in marine mammal health in North America, 1972–2012: The need for a novel integrated approach. PLoS One, 10(11), e0142105. [https://doi.org/10.1371/journal.pone.0142105](https://doi.org/10.1371/journal.pone.0142105)

Trillmich, F. (1979). Galapagos sea lions and fur seals. Noticias de Galápagos, 29, 8–14.

Trillmich, F. (1981). Mutual mother-pup recognition in Galapagos fur seals and sea lions: Cues used and functional significance. Behaviour, 8(1), 21–42.

Trillmich, F., & Limberger, D. (1985). Drastic effects of El Niño on Galapagos pinnipeds. Oecologia, 67(1), 19–22. [https://doi.org/10.1007/BF00378445](https://doi.org/10.1007/BF00378445)

Trillmich, F. (1986). Attendance behavior of Galapagos sea lions. In R. L. Gentry & G. L. Kooyman (Eds.), Fur seals: Maternal strategies on land and at sea (pp. 196–208). Princeton University Press.

Trillmich, F., & Dellinger, T. (1991). The effects of El Niño on Galapagos pinnipeds. In F. Trillmich & K. A. Ono (Eds.), Pinnipeds and El Niño. Ecological studies (analysis and synthesis) (Vol. 88, pp. 66–74). Springer.

Trillmich, F., & Wolf, J. B. (2008). Parent-offspring and sibling conflict in Galapagos fur seals and sea lions. Behavioral Ecology and Sociobiology, 62(3), 363–375. [https://doi.org/10.1007/s00265-007-0423-1](https://doi.org/10.1007/s00265-007-0423-1)

Trillmich, F. (2015). Zalophus wollebaeki. *The IUCN Red List of Threatened Species* 2015: e.T41668A45230540.

Trillmich, F., Meise, K., Kalberer, S., Mueller, B., Piedrahita, P., Pörschmann, U., et al. (2016). On the challenge of interpreting census data: Insights from a study of an endangered pinniped. PLoS One, 11(5), e0154588. [https://doi.org/10.1371/journal.pone.0154588](https://doi.org/10.1371/journal.pone.0154588)

Urquía, D., & Páez-Rosas, D. (2019). δ13C and δ15N values in pup whiskers as a proxy for the trophic behavior of Galapagos sea lion females. Mammalian Biology, 96, 28–36. [https://doi.org/10.1016/j.mambio.2019.03.012](https://doi.org/10.1016/j.mambio.2019.03.012)

Urquía, D., Vences, M., Aslan, S., Asadobay, P., Moreira-Mendieta, A., Chaves, J., & Páez-Rosas, D. (2024). DNA-metabarcoding supports trophic flexibility at the bioregional level and reveals new prey species for the Galapagos sea lion. Ecology and Evolution, 14(3), e10921. [https://doi.org/10.1002/ece3.10921](https://doi.org/10.1002/ece3.10921)

Villegas-Amtmann, S., Costa, D. P., Tremblay, Y., et al. (2008). Multiple foraging strategies in a marine apex predator, the Galapagos sea lion (*Zalophus wollebaeki*). Marine Ecology Progress Series, 363, 299–309. [https://doi.org/10.3354/meps07457](https://doi.org/10.3354/meps07457)

Villegas-Amtmann, S., Jeglinski, J. W., Costa, D. P., et al. (2013). Individual foraging strategies reveal niche overlap between endangered Galapagos pinnipeds. PLoS One, 8(8), e70748. https://doi.org/10.1371/journal.pone.0070748

Walsh, J. T., Kovaka, K., Vaca, E., Weisberg, D. S., & Weisberg, M. (2020). The effects of human exposure on Galápagos sea lion behavior. Wildlife Biology, 2020(4), 1–8. https://doi.org/10.2981/wlb.00778

Wernberg, T., Smale, D. A., Tuya, F., Thomsen, M. S., Langlois, T. J., De Bettignies, T., et al. (2013). An extreme climatic event alters marine ecosystem structure in a global biodiversity hotspot. Nature Climate Change, 3, 78–82. https://doi.org/10.1038/nclimate1627