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110 results for “cavity nest”
Data from: Using dynamic N-mixture models to test cavity limitation on northern flying squirrel demographic parameters using experimental nest box supplementation.
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Light affects parental provisioning behaviour in a cavity-nesting Passerine
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Data from: Consequences of habitat change and resource selection specialization for population limitation in cavity-nesting birds
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Woodpeckers and other excavators maintain the diversity of cavity-nesting vertebrates
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Data from: Local and landscape metrics identify opportunities for conserving cavity-nesting birds in a rapidly urbanizing ecoregion
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Active modification of cavity nest-entrances is a common strategy in arboreal ants
<p>The majority of tropical arboreal ant species nest in tree cavities. These cavities, often produced initially by wood-boring beetles, can be in live or dead wood and represent long-lasting and highly defensible nesting resources. Yet the size of cavity entrances can constrain their use. Active entrance modification may be an effective way to overcome this constraint. Here, we conduct the first systematic study of nest-entrance modification in an arboreal ant community. Using field experiments deployed across a number of tree species, we show that 14% of 2631 experimental cavities were modified by either enlargement, or reducing entrance size by construction. Entrance modifications, which were made by a majority (18/29 species) of the species that occupied experimental nests, used a variety of construction techniques and materials. Combined, these modifications were context-dependent with respect to available entrance sizes: enlargement was more common when the diversity of available entrance sizes was limited, whereas reduction was more prevalent when the diversity of entrance sizes was higher. Nevertheless, the context of tree species identity did not significantly influence the number of modified cavities or the construction materials. Overall, we show that nest-entrance modification is a widespread, active, and context-dependent strategy in the nesting ecology of arboreal ants.</p>
Data from: Evolution of iris colour in relation to cavity nesting and parental care in passerine birds
Strong selection pressures are known to act on animal coloration. Although many animals vary in eye colour, virtually no research has investigated the functional significance of these colour traits. Passeriformes have a range of iris colours, making them an ideal system to investigate how and why iris colour has evolved. Using phylogenetic comparative methods, we tested the hypothesis that conspicuous iris colour in passerine birds evolved in response to (a) coordination of offspring care and (b) cavity nesting, two traits thought to be involved in intra-specific gaze sensitivity. We found that iris colour and cooperative offspring care by two or more individuals evolved independently, suggesting that bright eyes are not important for coordinating parental care through eye gaze. Furthermore, we found that evolution between iris colour and nesting behaviour did occur in a dependent manner, but contrary to predictions, transitions to coloured eyes were not more frequent in cavity nesters than non-cavity nesters. Instead, our results indicate that selection away from having bright eyes was much stronger in non-cavity nesters than cavity nesters, perhaps because conspicuous eye coloration in species not concealed within a cavity would be more visible to predators.
Figs. 1–2. Strigister tecolotito. 1 in A New Genus and Species of North American Exosternini Associated with Cavity-Nesting Owls and a Reassignment ofPhelister simoniLewis (Coleoptera: Histeridae: Histerinae)
Figs. 1–2. Strigister tecolotito. 1) Antennal club; 2) Prosternum, ventrolateral view.
Supplementary material 5 from: Timm L, Schaal J, Sann M (2024) A DNA-barcoding-based approach to quantitatively investigate larval food resources of cavity-nesting wasps from trap nests. Journal of Hymenoptera Research 97: 45-56. https://doi.org/10.3897/jhr.97.117410
Trap nests locations
Supplementary material 4 from: Timm L, Schaal J, Sann M (2024) A DNA-barcoding-based approach to quantitatively investigate larval food resources of cavity-nesting wasps from trap nests. Journal of Hymenoptera Research 97: 45-56. https://doi.org/10.3897/jhr.97.117410
Information on sampling sites
Supplementary material 1 from: Timm L, Schaal J, Sann M (2024) A DNA-barcoding-based approach to quantitatively investigate larval food resources of cavity-nesting wasps from trap nests. Journal of Hymenoptera Research 97: 45-56. https://doi.org/10.3897/jhr.97.117410
PCR Conditions
Supplementary material 2 from: Timm L, Schaal J, Sann M (2024) A DNA-barcoding-based approach to quantitatively investigate larval food resources of cavity-nesting wasps from trap nests. Journal of Hymenoptera Research 97: 45-56. https://doi.org/10.3897/jhr.97.117410
Barcode and nest information
Supplementary material 3 from: Timm L, Schaal J, Sann M (2024) A DNA-barcoding-based approach to quantitatively investigate larval food resources of cavity-nesting wasps from trap nests. Journal of Hymenoptera Research 97: 45-56. https://doi.org/10.3897/jhr.97.117410
Infos on arthopods
Figure 2 from: Timm L, Schaal J, Sann M (2024) A DNA-barcoding-based approach to quantitatively investigate larval food resources of cavity-nesting wasps from trap nests. Journal of Hymenoptera Research 97: 45-56. https://doi.org/10.3897/jhr.97.117410
Figure 2 Tri-trophic interaction networks of the studied vespid and apoid wasp species comprising identified prey species and natural enemies. Interaction networks were conducted for the A spider-hunting apoid wasp T. clavicerumB aphid-hunting apoid wasp species P. corniger, P. gracilis and P. fuscipennis and CLepidoptera-hunting vespid wasp A. nigricornis, cricket-hunting apoid wasps I. mexicana and weevil-hunting vespid wasp M. parvulus. Yellow boxes represent the nest cell and the respective wasp larva, blue boxes the natural enemies and green boxes the prey species and the number of prey individuals per species per nest cell. Boxes with no number represent one individual only. The natural enemy Pronotalia sp. was not counted due to a high and randomely distributed number of individuals in the nest cell (> 40). Connections of nests and prey species are marked with grey bars.
Figure 1 from: Timm L, Schaal J, Sann M (2024) A DNA-barcoding-based approach to quantitatively investigate larval food resources of cavity-nesting wasps from trap nests. Journal of Hymenoptera Research 97: 45-56. https://doi.org/10.3897/jhr.97.117410
Figure 1 Nesting site and sample collection procedure: A example of a trap nest placed in the Botanical Garden of the University of Hohenheim, Stuttgart, Germany B, C nests of Passaloecus gracilis and Isodontia mexicana. One nest comprises several nest cells, which are separated by a given nesting material e.g. silky membran (B) or dry grass fragments (C) E morphotyped aphids F morphotyped spiders.
Data for: Nest cavity reuse by the cooperatively breeding Acorn Woodpecker
<p><span><span><span><span><span><span><span><span><span><span><span>Although primary cavity-nesting species are capable of excavating new cavities, they often reuse old ones. To determine potential factors driving such reuse, we studied nest-cavity reuse in the Acorn Woodpecker (<i>Melanerpes formicivorus</i>), a cooperative breeding species that reuses old cavities for 57.2% of nests at Hastings Reservation in central coastal California, USA. We found no evidence for significant fitness costs or benefits of cavity reuse compared to using newly constructed cavities. In contrast, several lines of evidence supported a role for constraints on both cavity reuse and on new cavity construction. The main constraint on reuse was cavities failing to survive from one year to the next, usually because the limb fell apart, filled with water, or was usurped by another species. Evidence that constraints on new cavity construction may be important included more frequent cavity reuse when groups renested and use of artificial cavities when they were experimentally provided. Nest-cavity reuse in this population appears to be driven primarily by constraints, including the energetic costs and time required to excavate a new cavity, rather than fitness consequences, even though Acorn Woodpeckers regularly excavate small holes in trees for acorn storage and the energetic costs of new cavity construction are apparently insufficient to significantly depress reproductive success. Constraints play a significant role in cavity reuse and may affect both the intraspecific and interspecific frequency of cavity reuse among facultative excavating species.</span></span></span></span></span></span></span></span></span></span></span></p>
Figure 4 from: Boff S, Alves-dos-Santos I (2018) Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini). Journal of Hymenoptera Research 62: 33-44. https://doi.org/10.3897/jhr.62.22834
Figure 4 Network-level analysis of larval provision of Euglossa cordata. Each orange rectangle represents the pollen type found in the brood cells. The green rectangles represent individual brood cell. The first number inside each green rectangle corresponds to the nest identity and the second number to the brood cell itself. The connection between rectangles (blue) shows the pollen types used as food for immature E. cordata. The width of each blue link corresponds to the frequency of pollen grains inside each brood cell. The content from brood cell N1.7, correspond to open cell in the nest 1 (see Fig. 2).
Figure 1 from: Boff S, Alves-dos-Santos I (2018) Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini). Journal of Hymenoptera Research 62: 33-44. https://doi.org/10.3897/jhr.62.22834
Figure 1 Location of study site. a The data was sampled on Ilha da Vitória, archipelago of Ilhabela, in São Paulo state b The habitat of the bromeliad on the rocks of the board, arrow highlights stolon of A. distichantha.
Figure 2 from: Boff S, Alves-dos-Santos I (2018) Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini). Journal of Hymenoptera Research 62: 33-44. https://doi.org/10.3897/jhr.62.22834
Figure 2 Details of two nests found inside stolons of bromeliads. In nest 1 only a part of the cell is shown. On the left side of nest 1 it is possible to see an open brood cell with fresh pollen in caramel color.
Figure 3 from: Boff S, Alves-dos-Santos I (2018) Cavities in bromeliad stolons used as nest sites by Euglossa cordata (Hymenoptera, Euglossini). Journal of Hymenoptera Research 62: 33-44. https://doi.org/10.3897/jhr.62.22834
Figure 3 Stolon of A. distichantha with two connected nests of Euglossa cordata. Nest 2 and 3 were separated by resin and bee carcasses (arrow between nest 2 and nest 3; see details in Suppl. material 1: Fig. S1c). The entrance of nest 3 is indicated (arrow) and nest 3 is in detail after dissection (with scale, 2 cm).
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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.