+ "text": "5 Citations\nWith a bibliography file (e.g., references.bib), Quarto can automatically format citations and a reference list.\nA bibliography file (with extension .bib) is a text file that stores information about your sources (for example, author, year, title, journal). Each source has a short key, like @feng_ultrasonic_2006, that you can use in your writing. Reference managers such as Zotero can export your library to a .bib file, so you do not have to type these entries by hand.\n\n\n\n\n\n\nNoteView references.bib\n\n\n\n\n\n\n@article{feng_ultrasonic_2006,\n title = {Ultrasonic communication in frogs},\n volume = {440},\n copyright = {2006 Springer Nature Limited},\n issn = {1476-4687},\n url = {https://www.nature.com/articles/nature04416},\n doi = {10.1038/nature04416},\n abstract = {Some bats, dolphins and rodents are notable among vertebrates in being able to produce and detect ultrasonic frequencies. Now for the first time an amphibian can be added to that select list. The spectacular bird-like sounds made by a type of Chinese torrent frog were known to edge into the ultrasonic range: now these frogs are shown to use ultrasonics as a form of communication. The males do at least, during competition for territory. Frogs are a long way, evolutionarily speaking, from the other known users of ultrasonics so this ability seems to have evolved independently several times. It is possible, too, that many other species are chatting away in the ultrasonic waveband, but that nobody has looked for them.},\n language = {en},\n number = {7082},\n urldate = {2026-03-26},\n journal = {Nature},\n author = {Feng, Albert S. and Narins, Peter M. and Xu, Chun-He and Lin, Wen-Yu and Yu, Zu-Lin and Qiu, Qiang and Xu, Zhi-Min and Shen, Jun-Xian},\n month = mar,\n year = {2006},\n note = {Publisher: Nature Publishing Group},\n keywords = {Humanities and Social Sciences, multidisciplinary, Science},\n pages = {333--336},\n file = {Full Text PDF:/home/amy/Zotero/storage/64S36KD5/Feng et al. - 2006 - Ultrasonic communication in frogs.pdf:application/pdf},\n}\n\n@article{starnberger_uni-_2014,\n title = {From uni- to multimodality: towards an integrative view on anuran communication},\n volume = {200},\n issn = {0340-7594},\n shorttitle = {From uni- to multimodality},\n url = {https://pmc.ncbi.nlm.nih.gov/articles/PMC4138437/},\n doi = {10.1007/s00359-014-0923-1},\n abstract = {Undeniably, acoustic signals are the predominant mode of communication in frogs and toads. Acoustically active species are found throughout the vast diversity of anuran families. However, additional or alternative signal modalities have gained increasing attention. In several anurans, seismic, visual and chemical communications have convergently evolved due to ecological constraints such as noisy environments. The production of a visual cue, like the inevitably moving vocal sac of acoustically advertising males, is emphasized by conspicuously coloured throats. Limb movements accompanied by dynamic displays of bright colours are additional examples of striking visual signals independent of vocalizations. In some multimodal anuran communication systems, the acoustic component acts as an alert signal, which alters the receiver attention to the following visual display. Recent findings of colourful glands on vocal sacs, producing volatile species-specific scent bouquets suggest the possibility of integration of acoustic, visual and chemical cues in species recognition and mate choice. The combination of signal components facilitates a broadened display repertoire in challenging environmental conditions. Thus, the complexity of the communication systems of frogs and toads may have been underestimated.},\n number = {9},\n urldate = {2026-03-26},\n journal = {Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology},\n author = {Starnberger, Iris and Preininger, Doris and Hödl, Walter},\n year = {2014},\n pmid = {24973893},\n pmcid = {PMC4138437},\n pages = {777--787},\n file = {Full Text:/home/amy/Zotero/storage/YHX45APP/Starnberger et al. - 2014 - From uni- to multimodality towards an integrative.pdf:application/pdf},\n}\n\n\n\nFirst, tell Quarto which bibliography file to use by adding it in the YAML at the top of your page:\n---\ntitle: \"My Document\"\nbibliography: references.bib\n---\nTo cite a source in your text, type @ followed by the citation key. You can put this inside a sentence or inside parentheses.\nSingle citation:\n\n\nSome frogs can communicate using ultrasonic calls that are far above the range of human hearing (@feng_ultrasonic_2006).\n\n\n\nSome frogs can communicate using ultrasonic calls that are far above the range of human hearing (Feng et al. (2006)).\n\n\nMultiple citations (separated by a semicolon):\n\n\nUltrasonic communication in frogs shows that amphibian hearing and vocal behaviour are more flexible than scientists once thought (@feng_ultrasonic_2006; @starnberger_uni-_2014).\n\n\n\nUltrasonic communication in frogs shows that amphibian hearing and vocal behaviour are more flexible than scientists once thought (Feng et al. (2006); Starnberger et al. (2014)).\n\n\nBy default, Quarto adds a list of works cited at the end of the document. If you want to control where this appears, you can add a refs div at the point where you want the reference list:\n\n\n::: {#refs}\n:::\n\n\n\n\n\nFeng, Albert S., Peter M. Narins, Chun-He Xu, et al. 2006. “Ultrasonic Communication in Frogs.” Nature 440 (7082): 333–36. https://doi.org/10.1038/nature04416.\n\n\nStarnberger, Iris, Doris Preininger, and Walter Hödl. 2014. “From Uni- to Multimodality: Towards an Integrative View on Anuran Communication.” Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology 200 (9): 777–87. https://doi.org/10.1007/s00359-014-0923-1.\n\n\n\n\n\nTask: In quarto_features.qmd:\n\nA .bib file is provided in the template site (pages/references.bib). Add this file to the YAML front matter using the bibliography: option, then add at least one in‑text citation to your page using a key from that file.",
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