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106 results for “Nesting ecology”
Juvenile socio-ecological environment shapes material technology in nest-building birds
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Data from: The role of wild bees and cavity-nesting wasps as ecological indicators of the last traditionally managed meadows in Eastern Europe
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Nest architecture is linked with ecological success in songbirds
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Use of geolocators for investigating breeding ecology of a rock crevice-nesting seabird: method validation and impact assessment
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Nest-boxes alter the reproductive ecology of urban cavity-nesters in a species-dependent way
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Data from: Islands in the desert for cavity-nesting bees and wasps: ecology, patterns of diversity, and conservation at oases of Baja California peninsula
<p>Aims: The oases of Baja California peninsula (BCP) have been proposed as important hotspots of biodiversity that hold an exceptional richness in the middle of desert conditions. We provide the effect of habitat, climatic, biogeographic and anthropogenic disturbance on communities of cavity nesting taxa, emphasizing on bees, wasps and their natural enemies. Location: Baja California Peninsula, Northwest Mexico.</p> <p>Methods: In oases of BCP and desert neighbor environments, trap-nesting taxa were evaluated in response to factors affecting the nest abundance, richness, and community structure. We used statistical models to find the variables controlling the nest abundance and ecological analyses to determine the habitat effect on diversity under different scenarios of disturbance and latitude.</p> <p>Results: The nest abundance varied between bees and wasps, but solar irradiation and relative humidity influenced the abundance of both groups. In general, abundance and richness were higher in oases. Bees did not discriminate between oasis and desert habitats to nest and mud-daubing wasps were highly dependent of oases. However, there were exceptions in both groups. The degree of anthropogenic disturbance affected the species composition, richness, and natural enemies.</p> <p>Main conclusions: The oases of Baja California seem to be functioning as mesic islands into the desert, each oasis hosting a great and unique richness of cavity-nesting taxa. About 65% of nest abundance and 50% of species occurred exclusively in the oasis. Thus, at least 21 species could be threatened if the oases of BCP disappear in the future. Local conditions are shaping the community structure of species, but also large-scale factors, e.g. climate and biogeographic patterns seem to be influencing the community structure. Since habitat loss and fragmentation can be a major problem in most oases, strategies to maintain the ecosystem services of pollinators and predators should be included in the conservation programs of these fragile habitats.</p>
Data from: Buteo nesting ecology: evaluating nesting of Swainson's hawks in the northern Great Plains
Swainson's hawks (Buteo swainsoni) are long-distance migratory raptors that nest primarily in isolated trees located in areas of high grassland density. In recent years, anthropogenic conversion of grassland habitat has raised concerns about the status of the breeding population in the northern Great Plains. In 2013, we initiated a study to investigate the influence of extrinsic factors influencing Swainson's hawk nesting ecology in north-central South Dakota and south-central North Dakota. Using ground and aerial surveys, we located and monitored nesting Swainson's hawk pairs: 73 in 2013 and 120 in 2014. We documented 98 successful breeding attempts that fledged 163 chicks; 1.52 and 1.72 fledglings per successful nest in 2013 and 2014, respectively. We used Program MARK to evaluate the influence of land cover on nest survival. The top model, SDist2Farm+%Hay, indicated that nest survival (fledging at least one chick) decreased as nests were located farther from farm sites and as the percent of hay cover increased within 1200-m of the nest site (34.4%; 95% CI = 27.6%–42.3%). We used logistic regression analysis to evaluate the influence of landscape variables on nest-site selection; Swainson's hawks selected for nest sites located closer to roads. We suggest that tree belts associated with farm sites, whether occupied or not, provide critical breeding sites for Swainson's hawks. Additionally, poor breeding success may be related to the late migratory behavior of this species which requires them to occupy marginal habitat due to other raptors occupying the most suitable habitat prior to Swainson's hawks arriving to the breeding grounds.
FIGURES 1–4 in Nesting ecology of Megachile (Sayapis) mendozana Cockerell and its synonymy with Megachile (Sayapis) santiaguensis Durante (Hymenoptera: Megachilidae)
FIGURES 1–4. Megachile (Sayapis) mendozana. 1. Distribution records for females (●), males (Ο), and both sexes (). 2-3. Trap-nests removed and opened to expose cells. 2. Photographs of live eggs on provisions (cells 3 and 4 of nest # 38). The color of masses pollen is due to pollen of Carduus acanthoides and Cirsium vulgare. 3. Photographs of early instars 4. Percentage of pollen types found in the provisions and in fecal pellets. Scale lines. Figs. 2–3, 10 mm.
Fig. 1 in Reproductive ecology and nest-site selection of Siamese fireback in lowland forest
Fig. 1. Location of Sakaerat Environmental Research Station, Nakhon Ratchasima, Thailand including 21 nests and 60 control
Figure 36 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 36. Monthly comparison of the percentage of days the canyon wren (Catherpes mexicanus Swainson, 1829) was present on Arkenstone Cave hill with the averaged monthly female population of Ageniella evansi Townes, 1957 for the period of 1994 through 2020. The wasp population trend is a cubic polynomial curve; R2 =.70.
Figure 34. A in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 34. A, Female Ageniella evansi Townes, 1957 with a Selenops sp. Latreille, 1819 spider trying to squeeze through a tight constriction among the rock rubble in the habitat box. B, having failed to negotiate the constriction while carrying her spider, the female went through, turned around, reached back and grabbed the spider by one of its chelicerae and pulled it through the constriction. View is through the plexiglass wall of the observation and habitat box, which forms the near side of the constriction.
Figure 35 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 35. Larva of Ageniella evansi Townes, 1957, 14 days old, removed from a nest cell in the habitat box (trial HB2). The larva is just finishing feeding on its host. The dark mass around which the larva is curled is the undigestible portions of the cephalothorax, including the eyes and chelicerae, of the provisioned lycosid spider. Scale bar: 5 mm.
Figure 32. Female Ageniella evansi Townes, 1957 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 32. Female Ageniella evansi Townes, 1957 just outside the cave entrance showing the tattered wingtips of an apparently senescent, but still viable, hunting individual.
Figure 31. Average annual percent hunting success for female Ageniella evansi Townes, 1957 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 31. Average annual percent hunting success for female Ageniella evansi Townes, 1957 at Arkenstone Cave based on daily data sets (N = 66). No full daily data sets exist for the years 2006– 2009, 2012 and 2015. *No spider returns were observed for full daily data sets in 2000 or 2005 due to the small female wasp population and reduced observation efforts.
Figure 29 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 29. The deeply dissected terrain in the Park that resulted from millions of years of geologic processes provides many small-scale ecotopes that support an enhanced plant species richness. This is typical wasp foraging habitat in the Park. Dominant plant species visible in the image include yellow paloverde (Parkinsonia microphylla Torr.), saguaro (Carnegiea gigantea Engelm.), and ocotillo (Fouquieria splendens Engelm.).
Figure 28. Female Ageniella evansi Townes, 1957 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 28. Female Ageniella evansi Townes, 1957 transporting Selenops sp. Latreille, 1819 spider within Arkenstone Cave. The light mark on this wasp's thorax is how the wasps were marked for identification.
Figure 30. A in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 30. A sequence of photographs (A–E) showing the route taken by Ageniella evansi Townes, 1957 from near the cave entrance to the primary nesting site access (also see Figure 6). The yellow arrows show the direction of travel into the cave taken by the wasps. A, looking north-west, back up the Hall of Crickets towards the cave entrance from the Register Room; B, looking south-east at the entrance of the Hideous Crawl; C, looking south-east into the Hideous Crawl; D, looking east from the First Antechamber into the Second Antechamber (beyond the scale); E, the access to the primary nesting area. The total distance from the cave entrance to this point is 44 m (Figure 6). Scale in photos is 15 cm.
Figure 27 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 27. Compilation of photos from trials of female Ageniella evansi Townes, 1957 with Selenops sp. Latreille, 1819 spiders in the photo chamber in the Register Room of Arkenstone Cave in March of 1993. A, wasp and spider before contact; B, wasp has envenomated the spider and is removing its legs by grasping each femur near the femur-trochanter junction; C, wasp partaking of haemolymph at coxal stub after removal of a leg; D, female grasping a palp, which was not removed; E, wasp using her mandibles to 'bulldoze' removed legs out of the way; F, wasp turns the spider on its side and removes a leg by pulling parallel to the axis of the leg in an avulsive process while holding and pushing against the spider with her middle and front legs, respectively. Leg separates at the coxa-trochanter locus. Scale bars: 10 mm.
Figure 25 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 25. Percent of observed host type by year taken by the Arkenstone Cave population of Ageniella evansi Townes, 1957 between 1993 and 2020.
Figure 5 in Biology and ecology of a deep cave nesting spider wasp, Ageniella evansi Townes, (Hymenoptera: Pompilidae), in Arizona
Figure 5. The known distribution of Ageniella evansi Townes, 1957. Note the apparent disjunct records in south central Mexico. Scale bar: 500 km.
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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.