The altitudinal limit of Leptohyphes Eaton, 1882 and Lachlania Hagen, 1868 (Ephemeroptera:Leptohyphidae, Oligoneuriidae) in Ecuadorian Andes streams: searching for mechanisms.

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dc.careerBiologyen_US
dc.category.authorprincipalen_US
dc.contributor.authorCrespo-Pérez, Verónica
dc.contributor.correspondingDean Jacobsen
dc.date.accessioned2023-11-04T21:35:49Z
dc.date.available2023-11-04T21:35:49Z
dc.date.issued2016-03-16
dc.dedication.authorTCes
dc.description.abstractWe explored mechanisms determining the upper altitudinal limit of ephemeropterans from two different genera: Leptohyphes Eaton, 1882 (Leptohyphidae) and Lachlania Hagen, 1868 (Oligoneuriidae). For this, we (1) surveyed the two taxa in 165 stream sites along a wide altitudinal gradient; (2) sampled benthic fauna at short altitudinal intervals along a stream, from 2780 to 3150 m above sea level; (3) collected adults at the lowest and highest sites; and (4) transplanted nymphs from the lowest to the highest study site in our stream to determine survival over time. Densities of the two taxa declined gradually with altitude and both disappeared between 2950 and 3080 m a.s.l. The upper altitudinal limit in the stream seemed to be most closely related to mean oxygen saturation, temperature, and current velocity. Adults were collected where the nymphs were found, but not at the upstream site where the nymphs were absent, implying limited upstream dispersal of adults and some of the altitudinal constraint lying at the adult stage. Short-term survival of transplanted nymphs was lower than that of controls, suggesting that the distribution was limited at the juvenile stage, and that at least some of the altitudinal constraint is related to the abiotic stream environment.en_US
dc.facultyCiencias Exactas y Naturaleses
dc.id.author1711667947
dc.identifier.doi10.1080/01650424.2015.1109128
dc.identifier.issn0165-0424
dc.identifier.urihttps://repositorio.puce.edu.ec/handle/123456789/5460
dc.identifier.urihttp://dx.doi.org/10.1080/01650424.2015.1109128
dc.indexed.databaseISI WEBes
dc.indexed.databaseScimago Journal Rankes
dc.language.isoen
dc.list.authorsCrespo-Pérez, V., Andino, P., Espinosa, R., Dangles, O. y Jacobsen, D.
dc.magazine.pageRange69-86
dc.magazine.titleAquatic Insectsen_US
dc.magazine.volumeChapter37(1)
dc.rightsClosedAccessen
dc.statepublisheden_US
dc.subjectEphemeropteraes
dc.subjectaltitudinal limites
dc.subjectdispersales
dc.subjectEcuadorian andeses
dc.subjectabiotic stressorses
dc.subjectEphemeroptera
dc.subjectaltitudinal limit
dc.subjectdispersal
dc.subjectEcuadorian andes
dc.subjectabiotic stressors
dc.titleThe altitudinal limit of Leptohyphes Eaton, 1882 and Lachlania Hagen, 1868 (Ephemeroptera:Leptohyphidae, Oligoneuriidae) in Ecuadorian Andes streams: searching for mechanisms.en_US
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