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8 results for “nest attendance”
Data from: Nest attendance by tropical and temperate passerine birds: same constancy, different strategy
1. Parental care in birds varies among species and geographic regions. Incubation behavior influences embryonic development rate and varies substantially among species. 2. We studied attendance at the nest by videoing nests or collecting data from the literature for 112 species in north temperate and lowland tropical sites, then associated patterns of incubation on- and off-bouts with species and environmental traits. 3. Songbirds nesting at low elevations incubate their eggs for an average of 74.1% (12.9 s.d., n = 60 species) of the time in temperate regions and 71.0% (12.2 s.d., n = 52 species) in tropical regions during daylight hours, and 84.3% (8.2 s.d.) and 85.3% (6.2 s.d.), respectively, of each 24-hour cycle. 4. While these attendance percentages do not differ significantly between latitudes, our data also show that lowland tropical songbirds make fewer visits to the nest and, consequently, have longer on-bouts and off-bouts during incubation. This pattern in attendance reflects a latitudinal contrast in parental care strategy, where lowland tropical birds reduce visits to the nest by increasing on- and off-bout lengths while maintaining the same proportion of time spent incubating their eggs (constancy). 5. Similar constancy across latitude suggests that tropical and temperate birds may be similarly constrained to maintain elevated egg temperatures for normal embryo growth. 6. The different attendance strategies adopted in each region may reflect differences in ambient temperature, adult foraging time, and nest predation rate. Consistently warm ambient temperatures likely allow tropical birds to take longer off-bouts, and thereby to reduce activity around the nest, compared to temperate birds.
Data from: Nest attendance by tropical and temperate passerine birds: same constancy, different strategy
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Incubation behaviour in a double-nesting alpine bird Alectoris graeca saxatilis: Similar nest attendance by males and females
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FIG. 5 in Nest Attendance Patterns in the American Alligator (Alligator mississippiensis)
FIG. 5. Nest visits were temperature-dependent, as most of the visits occurred at night when temperatures were lower, or, observationally, during periods of cloudy weather with thunderstorms during the mid-morning hours of the 2012 season.
FIG. 4 in Nest Attendance Patterns in the American Alligator (Alligator mississippiensis)
FIG. 4. An alligator confronts a wild hog in a nest defense behavior. The eggs were deposited in the nest on 10 June 2011, and thus this photo was captured on the second day after egg deposition. This was the only photo captured in the sequence. There was no damage to the nest, and no hair or blood was found at the nest site; thus, we assume that this confrontation resulted in a successful nest defense for the alligator.
FIG. 3. Cumulative rainfall for coastal southeast Texas. Note that the 2011 field season experienced only 54.8 in Nest Attendance Patterns in the American Alligator (Alligator mississippiensis)
FIG. 3. Cumulative rainfall for coastal southeast Texas. Note that the 2011 field season experienced only 54.8% of the normal rainfall through the first nine months of the year, while the 2012 season has much higher rainfall (71% above normal). This time frame covers the entire breeding, nesting, and incubation periods for alligators, and nest attendance patterns were not different between years despite drastic difference in climatic conditions.
FIG. 2 in Nest Attendance Patterns in the American Alligator (Alligator mississippiensis)
FIG. 2. Generalized additive model (GAM) analysis of alligator nest visitation varying over the incubation period in 2011 (A; v2 ¼ 64.31, r2 ¼ 0.07, P, 0.01) and 2012 (B; v2 ¼ 56.98, r2 ¼ 0.13, P, 0.01). Nests with an alligator present (1) or absent (0) are shown as binary classes (boxes) with darker shading indicating higher densities of observations. Binary data were used to calculate the proportion of nests with visits (circles). Nest attendance declined rapidly during the first weeks, remained low for the majority of incubation, and increased during
FIG. 1 in Nest Attendance Patterns in the American Alligator (Alligator mississippiensis)
FIG. 1. Minimum length of visits to nests, based on the number of photos in which the alligators were captured. Photos were captured every five minutes, and time ranges were based on the number of consecutive photos in which the alligators were captured.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.