Journal Article
Stable isotope variability of precipitation and cave drip-water at Jumandy cave, western Amazon River basin (Ecuador)
Jiménez, A., Ampuero, A., Valencia, B.G., Mayta, V.C., Cruz, F.W., Vuille, M., Novello, V.F., Misailidis Stríkis, N., Aranda, N., Conicelli, B.,
Record Number:
5800
Year:
2022
Journal:
Journal of Hydrology
Pages:
yy
Volume:
xx
Abstract:
Monitoring studies are necessary to better understand the hydrological processes affecting the isotopic signature of cave waters, which are ultimately recorded in speleothems that are used as paleoclimate archives. This research examines changes in the isotopic composition (δ18O and δ2H) of precipitation as it infiltrates through the epikarst and into the Jumandy cave, located in the western Amazon Basin (Ecuador). Meteorological and hydrological parameters were monitored outside and inside the cave, and isotope analyses were carried out in waters from rainfall, an underground river, and drip-water at two sampling sites in the cave between April 2019 and February 2020. At monthly timescale, the rainfall weighted isotopic composition monitored at our stations was strongly correlated with the mean precipitation amount. However, when considered at weekly time-steps, the correlation is only moderate. This implies that the variation of the isotopic composition in the study area cannot be interpreted exclusively as an amount effect. Isotopic values and back-trajectory modeling show that the isotopic signature was affected by the moisture source effect associated with upstream rainout. The moisture flux is dominantly from an east to northeast direction and moisture mainly originates over the Atlantic Ocean, passing through the Amazon Basin. A significant fraction of moisture is associated with local sources within the Amazon Basin. This aspect is confirmed by d-excess values of rainfall and the Local Meteoric Water Lines (LMWLs) that indicate an influence of the high evapotranspiration rate of the Amazon region on the isotopic composition of local rainfall. The infiltrated water resides for about three weeks in the epikarst and then precipitates forming speleothems (residence time). However, this short residence time needs to be confirmed with a longer monitoring period. Despite the different magnitudes of the dripping rates, the isotopic values at the two monitored sites are similar. This suggests that the dripping discharge rate is affected by the karst structure, but the isotopic signature reflects the mixing of individual rainfall events above the cave. Therefore, ẟ18O in speleothems from these caves is mainly recording short-term precipitation changes linked to regional and large-scale atmospheric circulation.
Times Cited:
2
Relevent Species:
Related Records:
Humboldt, F. H. A. (1805)
IVe Memoire, sur une nouvelle espece de Pimelode, jetee par les volcans du Royaume de Quito
Johnson, R.D.O. (1912)Notes on the habits of a climbing catfish (Arges marmoratus) from the Republic of Colombia
Collette, B. B. (1962)Astroblepus pholeter, a new species of cave-dwelling catfish from eastern Ecuador
Chardon, M. (1966)Specialisation anatomique de l'appareil de Weber d'Astroblepus pholeter, Silure cavernicole microphthalme de la Republique de l'Equateur
Chardon, M. (1968)Anatomie comparee de l'appareil de Weber et des structures connexes chez les Siluriformes
Balazs, D. (1972)The Jumandi Caves of Ecuador
Balazs, D. (1974)The Jumandi Caves of Ecuador
Montoriol-Pons, J. (1976)[A note on the Jumandi Cave (Archidona, Napo Province)]
Sket, B. (1979)[Fauna in the Caverna de Jumandi]
Sket, B. (1979)[Fauna in the Caverna de Jumandi]
Brown, P. and Hanson, P.D. (1981)The Jumandi Cave of Ecuador
Brown, P (1981)Southampton University expedition to Ecuador 1979
Hanson, P. D. (1981)The aquatic fauna
Brown, P (1981)Southampton University expedition to Ecuador 1979
Hanson, P. D. (1981)The aquatic fauna
Brown, P. and Hanson, P.D. (1981)The Jumandi Cave of Ecuador
Sket, B. (1985)Bogidiella (s.l.) gammariformis sp. n. (Amphipoda) from Ecuador
Sket, B. (1985)Bogidiella (s.l.) gammariformis sp. n. (Amphipoda) from Ecuador
Peck, S. B. (1985)The invertebate fauna of the tropical American caves. Part 6:Jumandi Cave, Ecuador
Peck, S. B. (1985)The invertebate fauna of the tropical American caves. Part 6:Jumandi Cave, Ecuador
Peck, S.B. (1994)Ecuador
Buitrago-Suarez, U.A. and Galvis, G. (1997)Description of some accessory stuctures of the urogenital system in the neotropical Family Astrobelpidae (Pisces, Siluroidei)
Romero, A. and Paulson, K.M. (2001)Humbodt's alleged subterranean fish from Ecuador
Romero, A. and Paulson, K.M. (2001)Humbodt's alleged subterranean fish from Ecuador
Nico, L.G. (2001)Alexander Von Humboldt (1769-1859): Contributions to knowledge of New World fishes
Schaefer, S.A. and Buitrago-Suarez, U.A. (2002)Odontode morphology and skin surface features of Andean astroblepid catfishes (Siluriformes, Astroblepidae)
Armbruster, J.W. (2004)Phylogenetic relationships of the suckermouth armoured catfishes (Loricariidae) with emphasis on the Hypostominae and the Ancistrinae
Schaefer, S.A. and Arroyave, J. (2010)Rivers as islands: determinants of the distribution of Andean astroblepid catfishes
Soares, D. (2010)Cavefishes as models for sensory adaptation
Schaefer, S.A., Chakrabarty, P., Geneva, A.J. and Sabaj Pérez, M.H. (2011)Nucleotide sequence data confirm diagnosis and local endemism of variable morphospecies of Andean astroblepid catfishes (Siluriformes: Astroblepidae)
Haspel, G., Schwartz, A., Streets, A., Camacho, D.E. and Soares, D. (2012)By the teeth of their skin, cavefish find their way
Haspel, G., Schwartz, A. and Soares, D. (2012)Unique mechanosensory adaptation to extreme environments in cavefish
Spadella, M.A., Oliveira, C., Ortega, H., Quagio-Grassiotto, I. and Burns, J.R. (2012)Male and female reproductive morphology in the inseminating genus Astroblepus (Ostariophysi: Siluriformes: Astroblepidae)
Conway, K.W., Lujan, N.K., Lundberg, J.G., Mayden, R.L. et al (2012)Microanatomy of the paired-fin pads of ostariophysan fishes (Teleostei: Ostariophysi)
Lujan, N.K. and Armbruster, J.W. (2012)Morphological and functional diversity of the mandible in suckermouth armored catfishes
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Crop, W.D., Pauwels, E., Hoorebeke, L.V. and Geerinckx, T. (2013)Functional morphology of the Andean climbing catfishes (Astroblepidae, Siluriformes): alternative ways of respiration, adhesion, and locomotion using the mouth
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Bauz, R., Andrea, C., Mena, A. and Estefania, A. (2015)Revista sobre la biodiversidad y el ecoturismo de las Cavernas de Jumandy, en el cantón Archidona en la Provincia de Napo-Tena
Bauz, R., Andrea, C., Mena, A. and Estefania, A. (2015)Revista sobre la biodiversidad y el ecoturismo de las Cavernas de Jumandy, en el cantón Archidona en la Provincia de Napo-Tena
Hoese, G., Addison, A., Toulkeridis, T. and Toomey, R. (2015)Observation of the catfish Chaetostoma microps climbing in a cave in Tena, Ecuador
Lujan, N.K. and Conway, K.W. (2015)Life in the fast lane: A review of rheophily in freshwater fishes
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Sánchez, J., Zurita, M., Schwarz, A., Cárdenas, V.,Bonilla, J., Quilumba, D., ... and Monar, M. (2017)Guía espeleológica de la Provincia de Napo.
Sánchez, J., Zurita, M., Schwarz, A., Cárdenas, V.,Bonilla, J., Quilumba, D., ... and Monar, M. (2017)Guía espeleológica de la Provincia de Napo.
Robinson, J., Kopp, J., Finocchiaro, A. and Espinasa, L. (2017)Astroblepus pholeter: Convergent regressive evolution of the mc1r gene in cavefish species
Espinasa, L., Christoforides, S. and Morfessis, S.E. (2017)Sequence analyses of the 16S rRNA of epigean and hypogean diplurans in the Jumandi Cave area, Ecuador
Espinasa, L., Robinson, J. and Espinasa, M. (2018)Mc1r gene in Astroblepus pholeter and Astyanax mexicanus: Convergent regressive
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Espinasa, L., Robinson, J., Soares, D., Hoese, G., Toulkeridis, T. and Toomey, R. (2018)Troglomorphic features of Astroblepus pholeter, a cavefish from Ecuador, and possible introgressive hybridization
Espinasa, L., Hoese, G., Toulkeridis, T. and Toomey, R. (2018)Corroboration that the Mc1rGly/Ser mutation correlates with the phenotypic expression of pigmentation in Astroblepus
Constantin, S., Toulkeridis, T., Moldovan, O.T., Villacís, M. and Addison, A. (2018)Caves and karst of Ecuador – state of the art and research perspectives
Constantin, S., Toulkeridis, T., Moldovan, O.T., Villacís, M. and Addison, A. (2018)Caves and karst of Ecuador – state of the art and research perspectives
Conde-Saldan, C.C., Souza Cunha, M., Albornoz-Garzo, J.G., Valiati Barreto, C.A., Ibagon, N., Villa-Navarro, F.A. and Abdala Dergam, J. (2019)Karyotypic divergence of two co-occurring species of Andean climbing catfishes
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Crawford, C.H., Randall, Z.S., Hart, P.B., Page, L.M., Chakrabarty, P., Suvarnaraksha, A. and Flammang, B.E. (2020)Skeletal and muscular pelvic morphology of hillstream loaches (Cypriniformes: Balitoridae)
Ochoa, L.E., Melo, B.F., García-Melo, J.E., Maldonado-Ocampo, J.A., Souza, C.S., Albornoz-Garzón, J.G., Conde-Saldaña, C.C., Villa-Navarro, F., Ortega-Lara, A. and Oliveira, C. (2020)Species delimitation reveals an underestimated diversity of Andean catfishes of the family Astroblepidae (Teleostei: Siluriformes)
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Soares, D. (2022)Evolutionary insights and constraints from the nervous systems and behavior of cavefish
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