Anales del Instituto de la Patagonia <p>Los <strong>Anales del Instituto de la Patagonia</strong> tienen por misión la publicación de trabajos originales e inéditos realizados preferentemente, aunque no exclusivamente, por los investigadores de la Universidad de Magallanes y sus colaboradores e invitados especiales, como así también por autores externos, en los campos de las Ciencias Naturales referidos a la Patagonia en sentido amplio, la Tierra del Fuego, la Antártica e islas adyacentes y el océano Pacífico sur-oriental.</p> Universidad de Magallanes es-ES Anales del Instituto de la Patagonia 0718-686X Editorial Americo Montiel San Martín ##submission.copyrightStatement## 2018-09-04 2018-09-04 46 2 Primera cita de Acledra nazgul Faúndez, Rider & Carvajal, 2016 (Heteroptera: Pentatomidae) en La Patagonia <p>Se cita por primera vez al pentatómido Acledra nazgul en la Patagonia, con registros provenientes de la Provincia de Neuquén, Argentina. Se incluye además una nueva cita en la Provincia de La Rioja que llena el vacío distribucional, dado que no existían citas de esta especie en la zona, a pesar de encontrarse en el centro de su distribución. Finalmente, se provee una clave para la identificación de las especies de Acledra en la Patagonia.</p> Eduardo I. Faúndez Mariom A. Carvajal ##submission.copyrightStatement## 2018-05-07 2018-05-07 46 2 21 23 Primer registro para Chile de Nyctelia discoidalis Fairmaire, 1905 (Coleoptera: Tenebrionidae) <p>Se registra por primera vez a Nyctelia discoidalis Fairmaire, 1905, (Coleoptera, Tenebrionidae) en la Patagonia chilena. El registro se obtuvo a partir de ejemplares recolectados en la localidad de Chile Chico, Provincia de General Carrera, Región de Aysén.</p> Mauricio Cid-Arcos Álvaro Zuñiga-Reinoso ##submission.copyrightStatement## 2018-05-07 2018-05-07 46 2 25 28 Aquatic biodiversity across a hydroperiod gradient of lakes, ponds, and wetlands in Torres del Paine National Park, Chile <p>Understanding how communities are structured under relatively pristine conditions is critical to understanding their ecology and evolution. In this study, we examined the structure of aquatic communities in the Torres del Paine National Park in Chilean Patagonia. Using dipnet surveys, we quantified the distribution of larval anurans and all macroinvertebrates from 81 habitats across a hydroperiod gradient (lakes, ponds, permanent wetlands, semi-permanent wetlands, and temporary wetlands). Compared to surveys conducted at similar northern latitudes that have high species richness and hydroperiod specialization, Patagonian habitats contained a dramatically lower richness with many taxa widely distributed across the hydroperiod gradient. Overall, taxonomic richness was lowest in temporary wetlands and lakes, but highest in habitats with intermediate hydroperiods. The cause of this unimodal relationship was a small decline in the prevalence of all taxa on the temporary end of the gradient (due to habitat desiccation) but a complete exclusion of several taxa on the most permanent end of the gradient (due to fish predation). These results are consistent with North American studies of aquatic communities and lend support to the hypothesized effect of disturbance on the distribution of biodiversity. The fact that most biodiversity occurs in the temporary and intermediate hydroperiods underscores the importance of managing the full range of aquatic&nbsp;communities rather than only concentrating on the larger and more apparent lakes.&nbsp;</p> Christine M. Glaude Rick A. Relyea Isaac M. Ortega ##submission.copyrightStatement## 2018-09-04 2018-09-04 46 2 7 20 On the bathymetric and latitudinal distributions of Coelorinchus cf. cookianus (Gadiformes: Macrouridae): first record documented with a remotely operated vehicle (ROV) in interior waters of the Campana Archipelago in central Patagonia, Chile (48°S) <p>This is the first report of Coelorinchus cf. cookianus in comparable shallow coastal waters in the southeastern Pacific. Two individuals were filmed with a remotely operated vehicle (ROV) at 150 m of depth at the pacific entrance of the October Channel in the Campana Archipelago in central Patagonia, Chile. The specimens were identified on a video transect as macrourids by their elongate tapering tail, and the dorsal fins with two spinous rays. The fishes showed a series of regular dark saddle-like bands on the top and sides of the body from before the first dorsal fin to tip of tail. These criteria fit best with description of Coelorinchus cookianus which is described as endemic in New Zealand waters. However, two of four Coelorinchus species registered in the southeastern Pacific have widespread distributions in the southern hemisphere. Lack of sampling effort in the central Patagonian coast, including shelf and upper slope may explain why until now C. cookianus was exclusively reported in New Zealand waters</p> Matthias Gorny German Zapata-Hernández ##submission.copyrightStatement## 2018-09-04 2018-09-04 46 2 29 36