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43 results for “calling activity”
Calling activity of Birds in the White Mountain National Forest: Audio Recordings (2016 and 2018)
We collected 410 10-minute sound recordings of birds in and near the Hubbard Brook Experimental Forest in New Hampshire. Recordings, which encompassed most of the bird breeding season in each of two years, included 130,776 vocalizations from 46 taxa. In the associated publication, we report species lists, rarefaction curves, and vocalization descriptions. We also provide analyses of habitat associations, phenology, and spatial patterning in vocalization activity. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.
Calling activity of Birds in the White Mountain National Forest: Manifest of 99,778 acoustic recordings from bird plots in the Hubbard Brook Forest: 2016 - 2023
During 2016 - 2023, during the bird breeding season, we collected 99,778 files of bioacoustic recordings in and near the Hubbard Brook Experimental Forest in New Hampshire. Here, we provide a manifest of the sound files. Most files are one-hour recordings collected at 32 kHz and saved in FLAC format (~ 25 MB per file, ~ 13 TB total). Typical recording configuration was 05:00 - 08:00 and 17:30 - 20:30 local time. The full sound files have been saved in three respositories: two copies at Dartmouth College (Ayres lab) and one copy at the Macauley Library, Cornell Laboratory of Ornithology. The full sound files are available upon request. The file attributes within the manifest include date, start time, and recorder group: e.g., Main, 10ha, Oven, VW, AshBirch, and Ridge. Each recorder group had 5 - 20 recorders at plots separated by >100 m. Coordinates of each recorder are associated with plot names within metadata. The bird species expected to occur in these recordings are those from Holmes et al. (2021). These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station. Holmes, R., S. Sillett, and M. Hallworth. 2021. Bird species recorded within the Hubbard Brook Experimental Forest and vicinity (1963-2020; updated January 2021). ver 1. Environmental Data Initiative. https://doi.org/10.6073/pasta/da6cbb1ed8142d52a9d72762983742d8 (Accessed 2024-10-24).
Fig. 1 in Joaquim José da Silva (c. 1755-1810): his life, natural history collecting activities, and involvement in the so-called first scientific expedition in the interior of Angola
Fig. 1. – "Aspecto da embocadura do Rio Dande" [Aspect of the mouth of the River Dande] with Joaquim José da Silva (left) and José António (right). [a. "Forno da cal" [lime oven]; b. "Armazem de a-guardar" [storage]; c. "Sanzallas" [dwellings]; d. "Armazem da madeira" [timber storage]; e. "Igreja que foi dos Jesuitas" [church that was of the Jesuits]; f. "Ponta do Mussule(?)" [Mussule(?) Tip] [SILVA, J.J. (post. 1785: fig. 84); painting executed by José António] [© Arquivo Histórico dos Museus da Universidade de Lisboa]
Fig. 2 in Joaquim José da Silva (c. 1755-1810): his life, natural history collecting activities, and involvement in the so-called first scientific expedition in the interior of Angola
Fig. 2. – Itinerary of Joaquim José da Silva in Angola from 1783 to 1810 according to TEIXEIRA (1962) in pink, SIMON (1983) in blue, and this work in red.
Fig. 3 in Joaquim José da Silva (c. 1755-1810): his life, natural history collecting activities, and involvement in the so-called first scientific expedition in the interior of Angola
Fig. 3. – Holotype of Cyphia stheno Webb at P. [Silva s.n., P00088662; © Muséum national d'Histoire naturelle, Paris]
"The sound comes from a meadow in the Sierra Nevada Mountains in California. The meadow is at an elevation of 2400 meters near a mountain named Olancha Peak, which is 3700 meters in altitude. Ihave a group of friends with which Ibackpack (trek) into the mountains. Our goal was to spend some time in the mountains and hike to the top of Olancha Peak (…) By the time we reached the meadow, we were in a forest and there was still snow on the ground in some places. We took the trip in June of 2006. The Sierra Nevada Mountains are a large mountain range. Much of the range is protected by national parks or preserved areas we call 'wilderness areas' (…) Ihave been backpacking for nearly 40 years and Iwill hopefully continue with this challenging activity for 40 years more! Many of my friends are much younger than Iam and it gives me much satisfaction to be able to have as much or more stamina for this activity than they have! When we are on these trips, we hike up peaks, catch fish, drink some whiskey around campfires and enjoy our time in the beautiful solitude. My memories of this trip were of the steep, hot hike from the desert to the cool meadow; the overall beauty of the nature, the absolute solitude of our campsite near the meadow; the strenuous hike to the top of Olancha Peak; the camaraderie of my friends; and, of course the sound of the frogs in the meadow. The frog sounds were astounding to me and Iwould listen in awe of the creature's instinctual desire to reproduce and continue the existence of their kind. Surely there were different species in the meadow for some of the frog sounds were different than others. The sounds only occurred after the Sun went down for the evening. Istood next to the creek in the meadow and recorded the sounds using my digital camera." [Peter/plentz1960]16 in Collecting Sounds. Online Sharing of Field Recordings as Cultural Practice
"The sound comes from a meadow in the Sierra Nevada Mountains in California. The meadow is at an elevation of 2400 meters near a mountain named Olancha Peak, which is 3700 meters in altitude. Ihave a group of friends with which Ibackpack (trek) into the mountains. Our goal was to spend some time in the mountains and hike to the top of Olancha Peak (…) By the time we reached the meadow, we were in a forest and there was still snow on the ground in some places. We took the trip in June of 2006. The Sierra Nevada Mountains are a large mountain range. Much of the range is protected by national parks or preserved areas we call 'wilderness areas' (…) Ihave been backpacking for nearly 40 years and Iwill hopefully continue with this challenging activity for 40 years more! Many of my friends are much younger than Iam and it gives me much satisfaction to be able to have as much or more stamina for this activity than they have! When we are on these trips, we hike up peaks, catch fish, drink some whiskey around campfires and enjoy our time in the beautiful solitude. My memories of this trip were of the steep, hot hike from the desert to the cool meadow; the overall beauty of the nature, the absolute solitude of our campsite near the meadow; the strenuous hike to the top of Olancha Peak; the camaraderie of my friends; and, of course the sound of the frogs in the meadow. The frog sounds were astounding to me and Iwould listen in awe of the creature's instinctual desire to reproduce and continue the existence of their kind. Surely there were different species in the meadow for some of the frog sounds were different than others. The sounds only occurred after the Sun went down for the evening. Istood next to the creek in the meadow and recorded the sounds using my digital camera." [Peter/plentz1960]16
Dataset of "Tracking Urban Human Activity from Mobile Phone Calling Patterns" PLOS Computational Biology paper
<p>This are the dataset file for "Tracking Urban Human Activity from Mobile Phone Calling Patterns", to be published in PLOS Computational Biology.</p> <p>The files contain probability distributions of finding a first, last, or any call as a function of time, derived from anonymized call detail records for a 12 months period in the year 2007 from a mobile phone service provider in a European country. The first data file contains the data obtained fom 30 different cities. the second for the six most populated cities, splitting the data into different age and gender groups.</p> <p>Details in README files.</p>
Data from: Evaluation of methods to estimate nocturnal bird migration activity: A comparison of radar and nocturnal flight call monitoring in the American West
Open the record for dataset details and reuse information.
Data from: Drivers of assemblage-wide calling activity in tropical anurans and the role of temporal resolution
<p>1. Temporal scale in animal communities is often associated with seasonality, despite the large variation in species activity during a diel cycle. A gap thus remains in understanding the dynamics of short-term activity in animal communities.</p> <p>2. Here we assessed calling activity of tropical anurans and addressed how species composition varied during night activity in assemblages along gradients of local and landscape environmental heterogeneity.</p> <p>3. We investigated 39 anuran assemblages in the Pantanal wetlands (Brazil) with passive acoustic monitoring during the peak of one breeding season and first determined changes in species composition between night periods (early, mid, and late) using two temporal resolutions (1-hour and 3-hour intervals). Then, we addressed the role of habitat structure (local and landscape heterogeneity variables from field-based and remote sensing metrics) and ecological context (species richness and phylogenetic relatedness) in determining changes in species composition (i) between night periods and (ii) across days.</p> <p>4. Nocturnal calling activity of anuran assemblages varied more within the 1-hour resolution than the 3-hour resolution. Differences in species composition between early and late-night periods were related to local habitat structure and phylogenetic relatedness, while a low variation in compositional changes across days was associated with low-heterogeneous landscapes. None of these relationships were observed using the coarser temporal resolution (3-hour).</p> <p>5. Our findings on the variation of calling activity in tropical anuran assemblages suggest potential trades-off mediated by fine-temporal partitioning. Local and landscape heterogeneity may provide conditions for spatial partitioning, while the relatedness among co-signaling species provides cues on the ecological overlap of species with similar requirements. These relationships suggest a role of niche dimensional complementarity on the structuring of these anuran assemblages over fine temporal scales. We argue that fine-temporal differences between species in breeding activity can influence the outcome of species interaction and that addressing temporal scaling issues can improve our understanding of dynamics of animal communities.</p>
Supplementary material 1 from: Symes LB, Madhusudhana S, Martinson SJ, Kernan CE, Hodge KB, Salisbury DP, Klinck H, ter Hofstede H (2022) Estimation of katydid calling activity from soundscape recordings. Journal of Orthoptera Research 31(2): 173-180. https://doi.org/10.3897/jor.31.73373
Supplementary material 1 from: Symes LB, Madhusudhana S, Martinson SJ, Kernan CE, Hodge KB, Salisbury DP, Klinck H, ter Hofstede H (2022) Estimation of katydid calling activity from soundscape recordings. Journal of Orthoptera Research 31(2): 173-180. https://doi.org/10.3897/jor.31.73373
Supplementary material 1 from: Rosa G, Penny S, Andreone F, Crottini A, Holderied M, Rakotozafy L, Schwitzer C (2014) A new species of the Boophis rappiodes group (Anura, Mantellidae) from the Sahamalaza Peninsula, northwest Madagascar, with acoustic monitoring of its nocturnal calling activity. ZooKeys 435: 111-132. https://doi.org/10.3897/zookeys.435.7383
Calls of Boophis ankarafensis sp. n. emitted from streamside vegetation in Ankarafa Forest.: Explanation note: Calls of Boophis ankarafensis sp. n. emitted from streamside vegetation in Ankarafa Forest (Sahamalaza – Iles Radama National Park). Calls consist of multi-pulsed trill notes (type 1) and 1-3 pulsed click notes (type 2). Cut 1: chorus recorded on 13 October 2011, 18:34 h, 26.7 °C; Cut 2: chorus with background calls of Cophyla berara recorded on 30 December 2011 at 18:44 h, 28.4 °C.
Flying under the LiDAR: relating forest structure to bat activity and call diversity
<p>Bat call data collected at Ordway-Swisher Biological Station from June - September 2015.</p>
Figure 2 in Climatic dependence in the daily and seasonal calling activity of anurans from coastal wetlands of southernmost Brazil
Figure 2. Rose-diagram of the circular analysis and mean vector length (r), indicated by the arrow vector, of the number of anuran species exhibiting calling activity (a; r = 0.36) and frequency of the calling activity records throughout the day (b; r = 0.46). The arrow vector indicates the concentration of species exhibiting calling activities throughout the months (a) and the recording frequency of these species throughout the hours of the day (b).
Figure 1 in Climatic dependence in the daily and seasonal calling activity of anurans from coastal wetlands of southernmost Brazil
Figure 1. Map of the study area. (a) The North and South America continent. (b) The Rio Grande do Sul state, Brazil. (c) The area of the TAIM Ecological Station.
Figure 3 in Climatic dependence in the daily and seasonal calling activity of anurans from coastal wetlands of southernmost Brazil
Figure 3. (a) Monthly variation of the maximum (continuous line) and minimum (dashed line) water temperature (°C), minimum absolute air relative humidity (dotted line; %), and hours of rainfall from December 2012 to April 2014. (b) Monthly calling activity of the anuran amphibians community in a wetland area from southernmost Brazil from December 2012 to April 2014. The number of species that exhibited calling activities in each month is shown at the top of the graph and the following categories were used: white – no records; dotted area – between 0.1 and 3.99 hours of daily activity; horizontal bar – between 4 and 7.99 hours of daily activity; dark grey – between 8 and 11.99 hours of daily activity; black – between 12 and 17 hours of daily activity; and plus symbol – activity peak indicated by the mean vector (µ) of the circular analysis.
Figure 4 in Climatic dependence in the daily and seasonal calling activity of anurans from coastal wetlands of southernmost Brazil
Figure 4. Calling activity frequency of the species of anuran amphibians found in wetlands from southernmost Brazil, highlighting the seasons with greatest activity: spring 2013 (September– November 2013); summer 2013 (December 2012–February 2013) and summer 2014 (December 2013–February 2014). The number of records per hour is represented by: white – no records; dotted area – 1-7 records; horizontal bar – 8-14 records; dark grey – 15-21 records; black – 22- 36 records; and plus symbol – activity peak indicated by the mean vector (µ) of the circular analysis.
Passive acoustic records of Lake Sturgeon calling activity in Detroit River
<p>Lake sturgeon (<i>Acipenser fulvescens</i>) are endangered in the Laurentian Great Lakes with increasing binational efforts to establish spawning grounds to aid restoration. While SCUBA surveys can document spawning activity, these are labour-intensive and may disrupt spawning. We used passive acoustic monitoring to quantify spawning sounds of lake sturgeon as a first step to developing remote sensing of sturgeon spawning grounds. <i>Acipenser</i> sp. are known to make a variety of sounds including, "thunders" (aka drums), which have been documented in <i>A. fulvescens</i> during spawning. We quantified drums from a known spawning bed. We recorded 5 different potential sturgeon sounds but only quantified drums as a marker for spawning activity. Drums were low frequency with average frequency peaks at 40 and 92 Hz and a rapid drop-off thereafter. There was no relationship between calling activity and water temperature but calling activity increased as the summer progressed. Call production was most active from 0600-1500h with little calling activity during nighttime recordings. The presence of low frequency boat sounds did correlate with a reduction in maximum calling rate so it is possible that commercial shipping may disrupt sturgeon communication, but more research is necessary to separate correlational from causative effects. These recordings represent a promising approach to map sturgeon spawning activity and show the potential effect of human activity on communication in this threatened species.</p>
Figure 3 in Quantification of underwater calling and foraging activities in the African clawed frog Xenopus laevis
Figure 3. Effects of moonlight intensity, along with lunar cycle, on A) Vocal activity, B) Foraging activity as estimated as the number of animals captured in food baited traps and C) sex ratio of captures (number of males/ total number of individuals), with points for observed values, and 95% confidence interval around the mean estimated from the best model.
Figure 2 in Quantification of underwater calling and foraging activities in the African clawed frog Xenopus laevis
Figure 2. Variations of A) Vocal activity, B) Foraging activity as estimated as the number of animals captured in food baited traps and C) sex ratio of captures (number of males/ total number of individuals), during the study period, according to date and lunar cycle with points for observed values, and 95% confidence interval around the mean estimated from the best model.
Effect of Night Float Call on Sleep and Activity Patterns Among Anesthesia Residents
ClinicalTrials.gov study NCT05043038. IPD Sharing: Not stated. Countries: 1. Publications: 7.
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