@article {58418, title = {Silent winters and rock-and-roll summers: The long-term effects of changing oceans on marine fish vocalization}, journal = {Ecological Indicators}, volume = {125}, year = {2021}, month = {Jan-06-2021}, pages = {107456}, abstract = {

The analysis of temporal trends and spatial patterns of marine sounds can provide crucial insights to assess the abundance, distribution, and behavior of fishes and of many other species. However, data on species-specific temporal and seasonal changes are still extremely limited. We report here the result of the longest recording ever conducted (five years, from 2014 to 2018) on fish vocalization. Findings from the Eastern Taiwan Strait (ETS) revealed a periodic fish chorusing pattern, with peaks in summer and almost complete silence, for ~2 months, during winter. Chorusing pattern was influenced by abiotic parameters, including temperature, tides and moon phase. We also report, for the first time, that extreme weather events (e.g., typhoons, storms with sediment resuspension) caused the cessation of the chorusing. The chorusing pattern explored in this long-term study provides important baseline data to understand the impact of climate change and of climate-driven extreme/episodic events on the phenology of fishes; this work also provides evidence that changes in the ambient conditions might significantly alter the phenology of vocalizing marine species.

}, keywords = {acoustic indices, Behavior, Climate-driven episodic events, Fish vocalization, Marine soundscape, Passive acoustic recordings}, issn = {1470160X}, doi = {10.1016/j.ecolind.2021.107456}, url = {https://linkinghub.elsevier.com/retrieve/pii/S1470160X21001217}, author = {Siddagangaiah, Shashidhar and Chen, Chi-Fang and Hu, Wei-Chun and Danovaro, Roberto and Pieretti, Nadia} } @article {58026, title = {The Vocal Repertoire of Golden-Faced Sakis, Pithecia chrysocephala, and the Relationship Between Context and Call Structure}, year = {2020}, abstract = {

Vocalizations are a vital form of communication. Call structure and use may change depending on emotional arousal, behavioral context, sex, or social complexity. Pithecia chrysocephala (golden-faced sakis) are a little-studied Neotropical species. We aimed to determine the vocal repertoire of P. chrysocephala and the influence of context on call structure. We collected data June\–August 2018 in an urban secondary forest fragment in Manaus, Amazonian Brazil. We took continuous vocal recordings in 10-min blocks with 5-min breaks during daily follows of two groups. We recorded scan samples of group behavior at the start and end of blocks and used ad libitum behavioral recording during blocks. We collected 70 h of data and analyzed 1500 calls. Lowest frequencies ranged 690.1\–5879 Hz in adults/subadults and 5393.6\–9497.8Hz in the only juvenile sampled. We identified eight calls, three of which were juvenile specific. We found that, while repertoire size was similar to that of other New World monkeys of similar group size and structure, it also resembled those with larger group sizes and different social structures. The durations of Chuck calls were shorter for feeding contexts compared to hostile, but frequencies were higher than predicted if call structure reflects motivation. This finding may be due to the higher arousal involved in hostile situations, or because P. chrysocephala use Chuck calls in appeasement, similar to behavior seen in other primates. Call structures did not differ between sexes, potentially linked to the limited size dimorphism in this species. Our findings provide a foundation for further investigation of Pithecia vocal behavior and phylogeny, as well as applications for both captive welfare (stress relief) and field research (playbacks for surveys).

}, keywords = {Behavior, communication, Neotropics, Pitheciidae, Welfare}, doi = {10.1007/s10764-019-00125-7}, url = {http://link.springer.com/10.1007/s10764-019-00125-7}, author = {Muir, Jen and Barnett, Adrian and Svensson, Magdalena S.} } @article {57342, title = {Substrate vibrations mediate behavioral responses via femoral chordotonal organs in a cerambycid beetle}, journal = {Zoological Letters}, volume = {2}, year = {2016}, month = {Jan-12-2016}, abstract = {

Background
Vibrational senses are vital for plant-dwelling animals because vibrations transmitted through plants allow them to detect approaching predators or conspecifics. Little is known, however, about how coleopteran insects detect vibrations.

Results
We investigated vibrational responses of the Japanese pine sawyer beetle, Monochamus alternatus, and its putative sense organs. This beetle showed startle responses, stridulation, freezing, and walking in response to vibrations below 1 kHz, indicating that they are able to detect low-frequency vibrations. For the first time in a coleopteran species, we have identified the sense organ involved in the freezing behavior. The femoral chordotonal organ (FCO), located in the mid-femur, contained 60\–70 sensory neurons and was distally attached to the proximal tibia via a cuticular apodeme. Beetles with operated FCOs did not freeze in response to low-frequency vibrations during walking, whereas intact beetles did. These results indicate that the FCO is responsible for detecting low-frequency vibrations and mediating the behavioral responses. We discuss the behavioral significance of vibrational responses and physiological functions of FCOs in M. alternatus.

Conclusions
Our findings revealed that substrate vibrations mediate behavioral responses via femoral chordotonal organs in M. alternatus.

}, keywords = {Behavior, Coleoptera, Sense organ, vibration}, doi = {10.1186/s40851-016-0053-4}, url = {http://zoologicalletters.biomedcentral.com/articles/10.1186/s40851-016-0053-4}, author = {Takanashi, Takuma and Fukaya, Midori and Nakamuta, Kiyoshi and Skals, Niels and Nishino, Hiroshi} } @mastersthesis {52812, title = {Impacts of Ambient Noise on Minke Whale (Balaenoptera acutorostrata) Habitat Use and Behavior}, year = {2018}, pages = {171}, type = {phd}, abstract = {

This study examines the soundscape of minke whale habitat in the Scottish Inner Hebrides around the islands of Mull, Coll and Muck and near the Ardnamurchan Peninsula of the Scottish mainland. To compare the soundscape with minke whale presence and behavior, acoustic recordings were paired with behavior and respiration data. Acoustic recordings were taken using a Soundtrap 300, deployed from a whale watching vessel. Data was taken from June - September 2016. The soundscape was analyzed by comparing power spectral density averaged into octave bands (center frequencies from 16 Hz \– 128 kHz). The soundscape of the region is ephemeral, with some locations having very different acoustic patterns depending on transient animal and human activity. Humans contribute to the soundscape through movement of small ships and dredging. Notable biological contributors to the soundscape include dolphins and snapping shrimp. Outside the island of Coll is quieter at mid-frequencies (2-8 kHz octave bands). Inside Coll is quieter at frequencies in the 16-128 kHz octave bands. Ardmore point, in the Sound of Mull, is louder for most frequencies. These differences create a potential way for animals to navigate or orient based on sound. Observed minke whale behaviors were categorized into behavior states to create a behavior budget. Minke whales in this area spend 56\% of their daytime feeding, 7\% traveling and 39\% in other activities. The average inter-breath interval for minke whales in this study was 60.7s. Minke presence and behavior were compared with sound levels in 1/3rd octave bands using generalized linear models. Minke whale presence and behavior both correlate with changes in the Soundscape. Minke whales are less likely to be seen with higher levels of low (31 Hz) and high (25.4 kHz) frequency sound. Higher levels of sound at low (63 Hz) frequencies were associated with lower probability of minke whales feeding. Higher probability of minke whales feeding in higher levels of high (25.4 kHz) frequency sound may indicate that minke whales are optimizing that time which is spent in regions with higher levels of noise at these frequencies.

}, keywords = {acoustics, ambient noise, Balaenoptera acutorostrata, Behavior, biological sciences, Conservation biology, Environmental science, Health and environmental sciences, Minke, Pure sciences, Soundscape}, isbn = {9780355660500}, url = {https://search.proquest.com/docview/2020840628?accountid=15181}, author = {Roland, Adele} }