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October 2021

Table of Contents - PeerJ (Biology Articles)

October 19, 2021

Vocal communication in wild chimpanzees: a call rate study

Anne-Sophie Crunchant, Fiona A. Stewart, Alex K. Piel

https://doi.org/10.7717/peerj.12326 PubMed 34721995

October 27, 2021

Age and lunar cycle predict harbor porpoise bycatch in the south-western Baltic Sea

Dennis Brennecke, Magnus Wahlberg, Anita Gilles, Ursula Siebert

https://doi.org/10.7717/peerj.12284 PubMed 34760359

October 15, 2021

Testis development in the Japanese eel is affected by photic signals through melatonin secretion

Ji-Yeon Hyeon, Jun-Hwan Byun, Eun-Su Kim, Yoon-Seong Heo, Kodai Fukunaga, Shin-Kwon Kim, Satoshi Imamura, Se-Jae Kim, Akihiro Takemura, Sung-Pyo Hur

https://doi.org/10.7717/peerj.12289 PubMed 34721978

October 14, 2021

Seasonal trends of the polyp expansion and nutritional condition of Alcyonium acaule (Octocorallia, Alcyonacea)

Lucia Rizzo, Ida Fiorillo, Sergio Rossi

https://doi.org/10.7717/peerj.12032 PubMed 34721953

October 27, 2021

Differences in insectivore bird diets in coffee agroecosystems driven by obligate or generalist guild, shade management, season, and year

Julie A. Jedlicka, Stacy M. Philpott, Martha L. Baena, Peter Bichier, Thomas V. Dietsch, Laney H. Nute, Suzanne M. Langridge, Ivette Perfecto, Russell Greenberg

https://doi.org/10.7717/peerj.12296 PubMed 34760362

October 22, 2021

Mate-guarding duration is mainly influenced by the risk of sperm competition and not by female quality in a golden orb-weaver spider

Lygia A. Del Matto, Renato C. Macedo-Rego, Eduardo S. A. Santos

https://doi.org/10.7717/peerj.12310 PubMed 34733589

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