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41 results for “nest temperature”
Boulder Chickadee Study nest temperature data, Boulder County, Colorado, 2024.
Incubation is a crucial part of the avian life cycle; eggs must be kept warm enough for embryos to develop. As egg temperatures drop rapidly when not being actively incubated, birds must balance the thermal requirements of their developing offspring with their own energy requirements when deciding to make a feeding trip. Incubation behavior can vary with ambient temperature, and across the breeding cycle. Here, we examine the incubation behavior of black-capped (Poecile atricapillus) and mountain (P. gambeli) chickadees where they live together in the Front Range of the Colorado Rocky Mountains. We deployed iButton temperature monitors in and around chickadee nests to record nest and ambient temperatures during the incubation period. For each deployment, we visually inspected temperature data to determine whether incubation was detected. For each deployment in which incubation was detected we quantified incubation behavior using the incR R package. Across the four nests for which incubation was detected, females (the incubating sex) spent about 85% of the day incubating, and left the nest about 32 times per day for an average of 6.7 minutes. On average, nest temperatures were maintained around 35˚C.
Figure 1 in Temperature variation in nests of Paleosuchus palpebrosus (Crocodylia: Alligatoridae) near the southern edge of the species´ range, Brazil
Figure 1. Egg-chamber temperature (upper filled circles), air temperature in the shade near the nest (triangle), and rainfall (lower filled circles). Nest 1 was from the ESSA in 2008; Nest 2 from the Serra do Urucum in 2010; Nest 3 from the Serra do Urucum in 2010; and Nest 4 from the Serra do Urucum in 2011.
Figure 1. A in If you can't stand the heat, get out of the kitchen! Notes on the influence of temperature on the nesting of social wasps
Figure 1. A. Image of the rocky outcrop with the highest concentration of nests in the brightest areas. B. Thermal image of the rocky outcrop demonstrating the temperature gradient in relation to the rock color variation. The red arrows point to the nests on the rocky outcrop. / Figura 1. A. Imagen del afloramiento rocoso con la mayor concentración de nidos en las áreas más brillantes. B. Imagen térmica del afloramiento rocoso que muestra el gradiente de temperatura en relación con la variación del color de la roca. Las flechas rojas señalan los nidos en el afloramiento rocoso.
Fig. 4 in Experimental manipulation of cavity temperature produces differential effects on parasite abundances in blue tit nests at two different latitudes
Fig. 4. Differences in the body mass of adult blue tit males by heat treatment of nest boxes and locality. Means ± intervals of confidence at 95% are shown.
Fig. 2 in Experimental manipulation of cavity temperature produces differential effects on parasite abundances in blue tit nests at two different latitudes
Fig. 2. Blowfly pupae abundance observed in control and heated nests of blue tits (Cyanistes caeruleus) in both localities (Spain and Germany). The data presented was controlled for the locality and the interaction between locality and treatment. Means ± intervals of confidence at 95% are shown.
Fig. 3 in Experimental manipulation of cavity temperature produces differential effects on parasite abundances in blue tit nests at two different latitudes
Fig. 3. Differences in the abundance of Haemoproteus/Plasmodium in blue tit males by treatment and locality. Means ± intervals of confidence at 95% are shown.
Fig. 1 in Experimental manipulation of cavity temperature produces differential effects on parasite abundances in blue tit nests at two different latitudes
Fig. 1. Daily variation of temperature in nests of blue tits. Temperature is decreasing at 00:00 and lower values for the day are attained close to 8:00 h. Data from two different nests with nestling of 7 days old are represented from A) Spain and B) Germany.
Data from: Earlier springs increase goose breeding propensity and nesting success at Arctic but not at temperature latitudes
<p class="MsoNormal"><span>1. Intermittent breeding is an important tactic in long-lived species that trade off survival and reproduction to maximize lifetime reproductive success. When breeding conditions are unfavourable, individuals are expected to skip reproduction to ensure their own survival. <br>2. Breeding propensity (i.e. the probability for a mature female to breed in a given year) is an essential parameter in determining reproductive output and population dynamics, but is not often studied in birds because it is difficult to obtain unbiased estimates. Breeding conditions are especially variable at high latitudes, potentially resulting in a large effect on breeding propensity of Arctic-breeding migratory birds, such as geese. <br>3. With a novel approach, we used GPS-tracking data to determine nest locations, breeding propensity and nesting success of barnacle geese, and studied how these varied with breeding latitude and timing of arrival on the breeding grounds relative to local onset of spring. <br>4. Onset of spring at the breeding grounds was a better predictor of breeding propensity and nesting success than relative timing of arrival. At Arctic latitudes (> 66°), breeding propensity decreased from 0.89 (95% CI: 0.65-0.97) in early springs to 0.22 (95% CI: 0.06-0.55) in late springs, while at temperate latitudes it varied between 0.75 (95% CI: 0.38-0.93) and 0.89 (95% CI:<span> </span>0.41-0.99) regardless of spring phenology. Nesting success followed a similar pattern, and was lower in later springs at Arctic latitudes, but not at temperate latitudes.<span> </span>In early springs, a larger proportion of geese started breeding despite arriving late relative to the onset of spring, possibly because the early spring enabled them to use local resources to fuel egg laying and incubation. <br>5. While earlier springs due to climate warming are considered to have mostly negative repercussions on reproductive success through phenological mismatches, our results suggest that these effects may partly be offset by higher breeding propensity and nesting success.</span></p>
Individual plasticity in response to rising sea temperatures contributes to an advancement in green turtle nesting phenology
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Data from: Earlier springs increase goose breeding propensity and nesting success at Arctic but not at temperature latitudes
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Adult sex-ratio bias does not lead to detectable adaptive offspring sex allocation via nest-site choice in a turtle with temperature-dependent sex determination
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Data from: It's not all about temperature: breeding success also affects nest design
<p><span><span><span><span><span><span><span><span><span><span>There are numerous observational studies on intra-specific variation in avian nest building and a single experimental manipulation. The general consensus is that birds build nests in response to environmental conditions, but it is not clear whether such flexibility in nest building is reproductively advantageous. To test the relationship between building flexibility and reproductive success, we allowed captive zebra finches to build their first nest, using string, and to breed in temperature-controlled rooms held at 14<sup>o</sup>C or 30<sup>o</sup>C. Once the offspring had fledged, we returned half the pairs to breed at the same temperature while half the pairs were switched to the alternative temperature. We provided all pairs with string and left them to build and breed a second time. For their first nest, pairs that built at 14°C used more string than did pairs that built at 30°C, and pairs that bred successfully built a nest with more string than did unsuccessful pairs. When pairs built their second nest, however, temperature no longer explained the number of pieces of string they used; rather, irrespective of the ambient temperature, pairs that had successfully produced young from their first nest used the same amount of string for their second nest while those that had failed to reproduce with their first nest used more string. These latter pairs were then more likely to reproduce successfully. Ambient temperature, therefore, did affect the nest the pairs built, but only in the absence of reproductive experience. </span></span></span></span></span></span></span></span></span></span></p>
Figure 2 in Temperature variation in nests of Paleosuchus palpebrosus (Crocodylia: Alligatoridae) near the southern edge of the species´ range, Brazil
Figure 2. Egg-chamber temperatures for three nests in the Serra do Urucum, in 2010, 2012, and 2013.
Supporting data and code for: Individual plasticity in response to rising sea temperatures contributes to an advancement in green turtle nesting phenology.
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Ariano-Sánchez et al-Sand temperatures on sea turtle nesting beaches
<p>Dataset of sand temperatures on sea turtle nesting beaches recorded for 2018-2019 from two dark volcanic sand beaches in the Pacific coast of Guatemala, Central America.</p> <p>R Code for analysis of dataset.</p>
A seven-year record of fluctuating core body temperatures of nesting leatherback and hawksbill sea turtles
<p>Sea turtles experience considerable changes in water temperatures during migrations and seasonal movements that will influence their body temperatures. Nothing is known of how sea turtles' core body temperatures vary from season to season at nesting sites. Over seven consecutive seasons we measured the surface temperatures of freshly laid eggs as proxies of core body temperatures of sea turtles using non-contact infrared thermometers. We estimated the temperatures of two species that have contrasting migration patterns - leatherbacks, which are adapted to migrate between tropical breeding sites to cold temperate waters, and hawksbills that are confined to the tropics and sub-tropics. We found considerable year-to-year variations in temperatures in both species (means ranging from 30.4°C to 31.5°C in leatherbacks), hawksbills the more so (28.1°C to 30.3°C). These differences will likely be modified by both natural seasonal variations and anthropogenic changes in global ocean temperatures and resulting changes in currents and water temperatures local to nesting beaches. These previously unrecognised fluctuations in body temperatures of nesting turtles have, it is argued, potential for predicting environmental tolerances, reproductive success, and nest site selection by sea turtles, and contribute to predictions of which rookeries may remain viable or not during future ocean warming.</p>
A seven-year record of fluctuating core body temperatures of nesting leatherback and hawksbill sea turtles
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Data from: It’s not all about temperature: breeding success also affects nest design
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Data from: Linking warmer nest temperatures to reduced body size in seabird nestlings: Possible mitochondrial bioenergetic and proteomic mechanisms
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The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae)
<p><strong>Aim</strong>: Nest building is widespread among animals. Nests may provide receptacles for eggs, developing offspring and the parents, and protect them from adverse environmental conditions. Nests may also indicate the quality of the territory and its owner and can be considered as an extended phenotype of its builder(s). Nests may, thus, function as a sexual and social signal. Here, we examined ecological and abiotic factors—temperature, nest predation and interspecific information utilization—shaping geographical variation in a specific nest structure—hair and feather cover of eggs— and its function as an extended phenotype before incubation in great (Parus major) and blue tits (Cyanistes caeruleus) across Europe. We also tested whether egg covering is associated with reproductive success of great tits.</p> <p><strong>Location</strong>: Fourteen different study sites and 28 populations across Europe.</p> <p><strong>Taxon</strong>: Parus major, Cyanistes caeruleus.</p> <p><strong>Methods</strong>: We recorded clutch coverage estimates and collected egg covering nest material from the tit nests. We also measured nest specific breeding parameters and phenotypic measurements on adults. We tested whether mean spring temperatures, nest predation rates and flycatcher (Ficedula spp) densities in the study areas explain the large-scale geographical variation of clutch coverage and reproductive success of tits.</p> <p><strong>Results</strong>: The degree of egg coverage of great tits increased with lower mean spring temperature, higher nest predation rate and higher flycatcher density. We did not find egg covering of blue tits to be associated with any of the ecological or abiotic factors. Moreover, egg covering of great tits was not associated with reproductive success in our cross-sectional data, yet a rigorous assessment of fitness effects would require long-term data.</p> <p><strong>Main conclusions</strong>: Our findings suggest that, in great tits, egg covering may simultaneously provide thermal insulation against cold temperatures during egg-laying in spring and also represent a counter-adaptation to reduce information parasitism by flycatchers and nest predation. Hence, geographical variation in interspecific interactions, and consequently in co-evolutionary processes, may affect the evolution of nest characteristics besides environmental conditions.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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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.