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77 results for “breeding behaviour”
Breeding biology and nesting behaviour of the endemic subspecies of White-eyed Vireo (Vireo griseus bermudianus) on the Bermuda archipelago
<p><span>See full abstract by searching the title of this article on the Journal of Field Ornithology webpage, ResearchGate, or Google Scholar. </span></p>
Data for: The relationships of breeding stage to daytime singing behaviour and song perch height in Bermuda White-eyed Vireos (Vireo griseus bermudianus)
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Data from: Associations between human non-motorized recreational activity on nest box occupation, exploratory behaviour, and breeding success in a passerine bird
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Recent breeding experience improves egg ejection behaviour
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Breeding biology and nesting behaviour of the endemic subspecies of White-eyed Vireo (Vireo griseus bermudianus) on the Bermuda archipelago
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Data from: Age-related variation in non-breeding foraging behaviour and carry-over effects on fitness in an extremely long-lived bird
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Temporal and spatial differences in the post-breeding behaviour of a ubiquitous Southern Hemisphere seabird, the common diving petrel
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Unravelling selection signatures in a single dog breed suggests recent selection for morphological and behavioural traits
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Data from: Linking oceanographic conditions, migratory schedules and foraging behaviour during the non‐breeding season to reproductive performance in a long‐lived seabird
1. Studies of the mechanisms underlying climate-induced population changes are critically needed to better understand and accurately predict population responses to climate change. Long-lived migratory species might be particularly vulnerable to climate change as they are constrained by different climate conditions and energetic requirements during the breeding and non-breeding seasons. Yet, most studies primarily focus on the breeding season of these species lifecycle. Environmental conditions experienced in the non-breeding season may have downstream effects on the other stages of the annual lifecycle. Not investigating such effects may potentially lead to erroneous inferences about population dynamics. 2. Combining demographic and tracking data collected between 2006 and 2013 at Kerguelen Island on a long-lived migratory seabird, the Black-Browed Albatross (Thalassarche melanophris), we investigated the links between sea surface temperature during the non-breeding season and behavioural and phenological traits (at-sea behaviour and migratory schedules) while accounting for different responses between birds of different sex and reproductive status (previously failed or successful breeders). We then explored if variation in the foraging behaviour and timing of spring migration influenced subsequent reproductive performance. 3. Our results showed that foraging activity and migratory schedules varied by both sex and reproductive status suggesting different energetic requirements and constraints among individuals. Higher sea surface temperatures during late winter, assumed to reflect poor winter conditions, were associated with an earlier departure from the wintering grounds and an extended pre-breeding period. However, an earlier spring migration and an earlier return to Kerguelen grounds were associated with a lower breeding success. 4. Our results highlighted that behaviour during some periods of the non-breeding season, particularly towards the end of the wintering period and the pre-breeding period had a significant effect on the subsequent reproductive success. Therefore, caution needs to be given to all stages of the annual cycle when predicting the influence of climate on population dynamics.
Comparison of behavioural tendencies between 'dangerous dogs' and other domestic dog breeds – evolutionary context and practical implications
<p>Aggressive behaviour by dogs is a considerable social problem, but the ability to predict which individuals may have increased aggressive tendencies is very limited, restricting the development of efficient preventive measures. There is a common perception that certain breeds are more likely to exhibit aggressive behaviour, which has contributed to the introduction of breed-specific legislation. The rationale for such legislation explicitly assumes high heritability of this trait while also implying relatively little variation within breeds; these assumptions are largely untested. We compared behavioural tendencies between 8 breeds that are subject to legislation in at least one country and 17 breeds that are not subject to legislation using two validated psychometric tools: the Dog Impulsivity Assessment Scale (DIAS), which scores elements of impulsivity, including a tendency for aggressive behaviour, and Positive and Negative Activation Scale (PANAS), which scores sensitivity to positive and negative stimuli (which may trigger aggressive responses). We found that the two groups of breeds do not differ significantly in the specific DIAS factor relating to aggressive behaviour, "Aggression Threshold and Response to Novelty", or any other DIAS and PANAS factors. We found large variation in all behavioural tendencies measured by both psychometric scales within both groups and within each breed studied. Taken together, our findings indicate that breed alone is not a reliable predictor of individual behavioural tendencies, including those related to aggression, and therefore breed-specific legislation is unlikely to be an effective instrument for reducing risk.</p>
Figure 2 in Territorial behaviour and breeding in the Southern Antpipit Corythopis delalandi (Aves: Rhynchocyclidae) in southeastern Brazil
Figure 2. Nests and eggs of the Southern Antpipit Corythopis delalandi found in fragments of semideciduous forest in Minas Gerais, southeastern Brazil. (a) Female incubating at her nest in Viçosa in November 1993. (b) Nest with two eggs found in Ipoema in 11th of November 2017. (c) Nest under construction found in Florestal in 6th of October 2017. (d) The two eggs clutch from the Ipoema nest.
Figure 1 in Territorial behaviour and breeding in the Southern Antpipit Corythopis delalandi (Aves: Rhynchocyclidae) in southeastern Brazil
Figure 1. Home ranges of nine males of the Southern Antpipit Corythopis delalandi monitored in a fragment of a secondary semideciduous forest in the municipality of Florestal, Minas Gerais, southeastern Brazil. Two polygons are shown for each bird. The outer polygon was built using a Kernel Density Estimator (KDE), while the inner was built using the Minimum Convex Polygon (MCP). Polygons are numbered as in Table 1. Each symbol represents a location recorded with a GPS handheld device. Note some few cases of intrusions in the home range of neighbour males.
Figure 3 in Territorial behaviour and breeding in the Southern Antpipit Corythopis delalandi (Aves: Rhynchocyclidae) in southeastern Brazil
Figure 3. Number of breeding records of the Southern Antpipit Corythopis delalandi obtained throughout its range. Records include breeding condition birds with enlarged testes, nests being built, nests with eggs, nests with nestlings, and juveniles. Data are from our own fieldwork, literature revision, and Citizen Science Networks (see main text for additional information).
Data from: Market forces influence helping behaviour in cooperatively breeding paper wasps
Biological market theory is potentially useful for understanding helping behaviour in animal societies. It predicts that competition for trading partners will affect the value of commodities exchanged. It has gained empirical support in cooperative breeders, where subordinates help dominant breeders in exchange for group membership, but so far without considering one crucial aspect: outside options. We find support for the existence of a biological market in paper wasps, Polistes dominula. We first show that females have a choice of cooperative partners. Second, by manipulating entire subpopulations in the field, we increased the supply of outside options for subordinates, freeing up suitable nesting spots and providing additional nesting partners. We predicted that by intensifying competition for help, our manipulation would force dominants to accept a lower price for group membership. As expected, subordinates reduced their foraging effort following our treatments. We conclude that to accurately predict the amount of help provided, social units cannot be viewed in isolation as has traditionally been done: the surrounding market must also be considered.
Figure 4 in Breeding and parental behaviour in the glass frog Centrolene savagei (Anura: Centrolenidae)
Figure 4. Male behaviour during amplexus in the glass frog Centrolene savagei; Yotoco, Valle del Cauca, Colombia. (A) Amplectant pair (body size male = 22.58 mm, female = 26.24 mm); (B) and (C): male rotation on the female dorsum. Photos by F. Vargas-Salinas.
Figure 2 in Breeding and parental behaviour in the glass frog Centrolene savagei (Anura: Centrolenidae)
Figure 2. Behavioural sequence of courtship in the glass frog Centrolene savagei in a population at Alto Bonito-Águila (n = 2). (A) Female approaching a calling male, (B) beginning of acoustic display by male, (C) jumping and movements by male, (D) tactile displays involving the male tapping his head on the female dorsum, (E) amplexus and movements on the leaf, (F) stationary phase of the amplexus. Illustration by M. Rivera-Correa.
Figure 1 in Breeding and parental behaviour in the glass frog Centrolene savagei (Anura: Centrolenidae)
Figure 1. Relationship between male body size, mating success (above) and call peak frequency (below) in the glass frog Centrolene savagei.
Figure 5 in Breeding and parental behaviour in the glass frog Centrolene savagei (Anura: Centrolenidae)
Figure 5. Oviposition and parental behaviour in the glass frog Centrolene savagei. (A) Oviposition and possible fertilization of eggs; (B, C) female raising posterior part of her body and male starting to position himself between her belly and the egg clutch; (D) male accommodation above eggs, (E, F) female leaving the oviposition site and male engaging in parental behaviour. Photographs by F. Vargas-Salinas.
Figure 4 in Breeding behaviour of Bokermannohyla nanuzae (Anura: Hylidae) at an Atlantic Forest site in southeastern Brazil
Figure 4. Egg-laying site (A) and detail of unpigmented eggs (B) layed by Bokermannohyla nanuzae at a nest located on a rocky ledge by a stream at the RPPN Santuário do Caraça, southeastern Brazil on November 2011.
Figure 3 in Breeding behaviour of Bokermannohyla nanuzae (Anura: Hylidae) at an Atlantic Forest site in southeastern Brazil
Figure 3. Sequence of courtship behaviours of Bokermannohyla nanuzae based on five separate pairs observed at the RPPN Santuário do Caraça, southeastern Brazil. (A) Female approached male, he turned to her and started emitting Courtship call 1; (B) female touched the anterior part of male's body; (C) male started guiding the female emitting Courtship call 2; (D) female touched male during the trajectory; (E, F) mutual touches by the couple, female passed her arms alternately on her head and eyes, male pushed the female and held the anterior part of her body with his mouth, alternating with quick movements of stretching and contracting his legs; (G) couple entered amplexus at a crevice with a rocky substrate and water in the bottom. See text for details.
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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)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.