Benthic Macroinvertebrates of Temperate, Sub-Antarctic Streams: The Effects of Altitudinal Zoning and Temperature on the Phenology of Aquatic Insects Associated to the Robalo River, Navarino Island (55°S), Chile Page: I
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Contador Mejias, Tamara Andrea. Benthic Macroinvertebrates of Temperate, Sub-
Antarctic Streams.: The Effects ofAltitudinal Zoning and Temperature on the Phenology of
Aquatic Insects Associated to the Robalo River, Navarino Island (550S), Chile. Doctor of
Philosophy (Biology), December 2011, 140 pp., 12 tables, 37 illustrations, chapter references.
The Cape Horn Biosphere Reserve, within the remote Sub-Antarctic ecoregion is a
reservoir of expressions of biological and cultural diversity. Although it is considered one of 24
wilderness areas remaining in the world, it is not free from local and global threats, such as
invasive species, and climate change. Field biologists and philosophers associated to the Sub-
Antarctic Biocultural Conservation Program and the Omora Ethnobotanical Park, have worked to
describe the region's biocultural diversity, linking ecological and philosophical research into
education, ecotourism, and conservation, through a methodology called field environmental
philosophy (FEP), which integrates ecological sciences and environmental ethics through a 4-
step cycle consisting of: 1) interdisciplinary research; 2) composition of metaphors; 3) design of
field activities with an ecological and ethical orientation; and 4) implementation of in situ
conservation areas. In this context, the purposes of this dissertation were to: 1) provide a
comprehensive review of publications regarding the conservation status of aquatic and terrestrial
insects at a global scale and with an emphasis in southern South America; 2) study the
distribution of benthic macroinvertebrates through the sharp altitudinal gradient of the R6balo
River watershed; 3) describe the life histories of Gigantodax sp (Simuliidae: Diptera) and
Meridialaris chiloeense (Leptophlebiidae: Ephemeroptera) in the R6balo River and to assess the
potential effects of climate change on their phenology; and 4) to apply FEP methodology in
order to better understand and communicate the intrinsic and instrumental values of freshwater
invertebrates in the Cape Horn Biosphere Reserve.
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Contador Mejías, Tamara Andrea. Benthic Macroinvertebrates of Temperate, Sub-Antarctic Streams: The Effects of Altitudinal Zoning and Temperature on the Phenology of Aquatic Insects Associated to the Robalo River, Navarino Island (55°S), Chile, dissertation, December 2011; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc103303/m1/2/: accessed January 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .