{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T05:53:19Z","timestamp":1761630799090,"version":"build-2065373602"},"reference-count":61,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2017,6,8]],"date-time":"2017-06-08T00:00:00Z","timestamp":1496880000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002809","name":"Generalitat de Catalunya","doi-asserted-by":"publisher","award":["2014-SGR-0590"],"award-info":[{"award-number":["2014-SGR-0590"]}],"id":[{"id":"10.13039\/501100002809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Fast environmental variations due to climate change can cause mass decline or even extinctions of species, having a dramatic impact on the future of biodiversity. During the last decade, different approaches have been proposed to track and monitor endangered species, generally based on costly semi-automatic systems that require human supervision adding limitations in coverage and time. However, the recent emergence of Wireless Acoustic Sensor Networks (WASN) has allowed non-intrusive remote monitoring of endangered species in real time through the automatic identification of the sound they emit. In this work, an FPGA-based WASN centralized architecture is proposed and validated on a simulated operation environment. The feasibility of the architecture is evaluated in a case study designed to detect the threatened Botaurus stellaris among other 19 cohabiting birds species in The Parc Natural dels Aiguamolls de l\u2019Empord<\/jats:p>","DOI":"10.3390\/s17061331","type":"journal-article","created":{"date-parts":[[2017,6,8]],"date-time":"2017-06-08T10:26:09Z","timestamp":1496917569000},"page":"1331","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["An FPGA-Based WASN for Remote Real-Time Monitoring of Endangered Species: A Case Study on the Birdsong Recognition of Botaurus stellaris"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2021-9264","authenticated-orcid":false,"given":"Marcos","family":"Herv\u00e1s","sequence":"first","affiliation":[{"name":"GTM\u2014Grup de recerca en Tecnologies M\u00e8dia, La Salle-Universitat Ramon Llull, C\/Quatre Camins 30, 08022 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2261-5471","authenticated-orcid":false,"given":"Rosa","family":"Alsina-Pag\u00e8s","sequence":"additional","affiliation":[{"name":"GTM\u2014Grup de recerca en Tecnologies M\u00e8dia, La Salle-Universitat Ramon Llull, C\/Quatre Camins 30, 08022 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1921-2375","authenticated-orcid":false,"given":"Francesc","family":"Al\u00edas","sequence":"additional","affiliation":[{"name":"GTM\u2014Grup de recerca en Tecnologies M\u00e8dia, La Salle-Universitat Ramon Llull, C\/Quatre Camins 30, 08022 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mart\u00ed","family":"Salvador","sequence":"additional","affiliation":[{"name":"GTM\u2014Grup de recerca en Tecnologies M\u00e8dia, La Salle-Universitat Ramon Llull, C\/Quatre Camins 30, 08022 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2017,6,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"571","DOI":"10.1126\/science.aaa4984","article-title":"Accelerating extinction risk from climate change","volume":"348","author":"Urban","year":"2015","journal-title":"Science"},{"key":"ref_2","first-page":"443","article-title":"On the use of tape recorders in avifaunal surveys","volume":"108","author":"Parker","year":"1991","journal-title":"Auk"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"561","DOI":"10.1641\/0006-3568(2005)055[0561:WSNFE]2.0.CO;2","article-title":"Wireless sensor networks for ecology","volume":"55","author":"Porter","year":"2005","journal-title":"BioScience"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"385","DOI":"10.1525\/bio.2009.59.5.6","article-title":"New eyes on the world: Advanced sensors for ecology","volume":"59","author":"Porter","year":"2009","journal-title":"BioScience"},{"key":"ref_5","unstructured":"Franzen, A., and Gu, I.Y. 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