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162 results for “nesting behavior”
FIGURES 39–41 in Nest Site Selection and Nesting Behavior of the Bee Lithurgopsis apicalis (Megachilidae: Lithurginae)
FIGURES 39–41. Microphotographs of cocoons of Lithurgopsis apicalis. 39. Sample of cocoons most of which had been opened to remove larvae, showing variation in color, texture, and external shape. 40. Longitudinal section of front of one side of front end of cocoon, showing outer layer of dark silk between which thin line of white fine-grained layer of discharge is sandwiched by inner thick layer of dark silk. 41. Longitudinal section of posterior end of cocoon showing multiple layers of silk fibers.
FIGURES 19–23 in Nest Site Selection and Nesting Behavior of the Bee Lithurgopsis apicalis (Megachilidae: Lithurginae)
FIGURES 19–23. Microphotographs of nest components of Lithurgopsis apicalis. 19. Assorted discs showing variation primarily in views of posterior surfaces from numerous cells. 20. Young larva, probably first instar, facing posterior surface of disc, but not yet feeding. 21. Two preserved eggs, side view. 22. Newly emerged fifth instar compared with fully grown fifth instar. 23. Plastic rearing dish containing five live larvae, which permitted us to observe feeding and cocoon-spinning activities throughout the study period.
FIGURES 12–14 in Nest Site Selection and Nesting Behavior of the Bee Lithurgopsis apicalis (Megachilidae: Lithurginae)
FIGURES 12–14. Single cell provisions of Lithurgopsis apicalis from various nests. FIGURE 15.Two cells in linear series. FIGURES 16–18. Eggs of Lithurgopsis apicalis attached to disc, and same egg with attachment to disc now broken, and another egg and disc, respectively.
FIGURES 7, 8 in Nest Site Selection and Nesting Behavior of the Bee Lithurgopsis apicalis (Megachilidae: Lithurginae)
FIGURES 7, 8. Nests of Lithurgopsis apicalis. 7. Cross section of Agave stalk where multiple nests were first found, showing pollen-filled cells (arrows), open tunnels, and tunnels filled with wood chips (gray). 8. Closeup of burrow wall through fine-grained plant tissue showing characteristic transverse patterning created by the female's mandibles during excavation.
FIGURES 9–11 in Nest Site Selection and Nesting Behavior of the Bee Lithurgopsis apicalis (Megachilidae: Lithurginae)
FIGURES 9–11. Diagrams of nest found near Dos Cabezas, Cochise County, Arizona. 9. Entire nest, side view containing two burrows, with close-up of section containing three cells, one of which had not been closed. 10. Single cell containing two eggs, each associated with small open space ("egg chamber") and with disc of firmer provisions. 11. Close-up of disc and egg.
FIGURES 46, 47 in Nest Site Selection and Nesting Behavior of the Bee Lithurgopsis apicalis (Megachilidae: Lithurginae)
FIGURES 46, 47. SEM macrographs of thin film of cocoon fabric spun on June 44, 2013, as identified in photomicrograph, figure 36, 46. showing small apertures that presumably would have been closed with more applications of silk, and 47. edge of same, showing texture of silk that is extruded, respectively. These macrographs plus observations made at the time strongly suggest that the inner surface of cocoons is composed solely of silk; see text for further explanation.
FIGURES 27–31 in Nest Site Selection and Nesting Behavior of the Bee Lithurgopsis apicalis (Megachilidae: Lithurginae)
FIGURES 27–31. Microphotographs of cleared larvae of Lithurgopsis apicalis. 27. Entire first instar, lateral view, with cast chorion and pollen grains adhering to posterior end. 28. Head of same, frontal view. 29. Head capsule of third/fourth instar, frontal view, showing pollen grain being ingested. 30. Same but more dorsal view showing pollen grains being ingested sequentially into esophagus. 31. Lower part of head of early fifth instar; note pollen grain being ingested behind mandibular apices.
FIGURES 32–36 in Nest Site Selection and Nesting Behavior of the Bee Lithurgopsis apicalis (Megachilidae: Lithurginae)
FIGURES 32–36. Larvae of Lithurgopsis apicalis. 32. Cast head capsules of second and third instars attached to venter of fourth instar. 33. Early defecating fifth instar, showing slender body shape. 34. Intermediate-aged fifth instar demonstrating more tapered body shape. 35. Spinning fifth instar with fibrous cushion of feces and pollen intermeshed with silk. 36. Silken network that has been partly covered by thin film of clear silk (identified by arrow).
Figures 1–2 in First host record, nesting behavior, and taxonomic position of the spider wasp genus Hesperopompilus Evans and some other Evans genera (Hymenoptera: Pompilidae)
Figures 1–2. Hesperopompilus sp. (undescribed). 1) Female dragging a Eustala anastera (Araneidae), adult or subadult female, backwards across an exposed tree rootlet, grasping the immobilized orb-weaver spider by its left second coxa with her mandibles. The spider was held slightly above the substrate in a cephalothorax upright position. 2) Female in front of her nest entrance excavating a burrow in sandy soil using her forelegs alternately. She held her apical antenna segments against the floor of the opening and wings flat on her dorsum. Photographs © Yukioz.
Figures 3–4. Pompilid spp. and their hosts. 3 in First host record, nesting behavior, and taxonomic position of the spider wasp genus Hesperopompilus Evans and some other Evans genera (Hymenoptera: Pompilidae)
Figures 3–4. Pompilid spp. and their hosts. 3) Ammosphex anomalus, identified initially as Perissopompilus phoenix, female dragging a Xysticus sp. (Thomisidae), adult female, backwards across stony ground, grasping the femur of its right hind leg with her mandibles. Photograph © Alice Abela. 4) Xerochares expulsus female dragging an Olios giganteus (Sparassidae), immature male, backwards across the ground, grasping the trochanter of its left foreleg with her mandibles. Photograph © Kelly Harrington.
Figures 5–12 in Nesting behavior of the spider wasp Calopompilus pyrrhomelas (Walker) (Hymenoptera: Pompilidae)
Figures 5–12. Calopompilus pyrrhomelas (Pompilidae) and Antrodiaetus montanus (Antrodiaetidae). Photographs © Marshal Hedin. 5) Immobilized host spider, as initially found, about one meter from its burrow entrance. 6) Wasp dragging spider backwards across sand some distance from its burrow entrance, grasping the end of its right foreleg with her mandibles. 7) Wasp entering and exiting the spider's open burrow—a form of reconnaissance. 8) Wasp dragging spider backwards near its open burrow, grasping its spinnerets with her mandibles. 9) Wasp backing into entrance with spider in tow, retaining grasp of its spinnerets with her mandibles. 10) Spider gradually disappearing as it is being pulled down the burrow by wasp. 11) Partly closed collapsible collar door with wasp and spider inside burrow. 12) Fully closed collapsible collar door with wasp and spider inside burrow.
Figures 1–4 in Nesting behavior of the spider wasp Calopompilus pyrrhomelas (Walker) (Hymenoptera: Pompilidae)
Figures 1–4. Calopompilus pyrrhomelas (Pompilidae) and Calisoga longitarsis (Nemesiidae). Photographs © Kerry Blackwell. 1) Wasp extracted host spider from its open burrow and is searching for it on the ground surface. 2) Wasp caught the escaped spider, stung and paralyzed it, and is examining it as it lies ventral side upward on the ground. 3) Wasp dragged the immobilized spider next to its burrow entrance and is repositioning it with its abdomen beside the opening for ready entry. 4) Wasp walked away from the repositioned spider to groom and rest before returning to pull it inside and down its burrow.
Behavioral strategies and the spatial pattern formation of nesting
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Data from: A description of nesting behaviors, including factors impacting nest site selection, in black-and-white ruffed lemurs (Varecia variegata)
Nest site selection is at once fundamental to reproduction and a poorly understood component of many organisms' reproductive investment. This study investigates the nesting behaviors of black-and-white ruffed lemurs, Varecia variegata, a litter-bearing primate from the southeastern rainforests of Madagascar. Using a combination of behavioral, geospatial, and demographic data, I test the hypotheses that environmental and social cues influence nest site selection, and that these decisions ultimately impact maternal reproductive success. Gestating females built multiple large nests throughout their territories. Of these, females used only a fraction of the originally constructed nests, as well as several parking locations as infants aged. Nest construction was best predicted by environmental cues, including the size of the nesting tree and density of feeding trees within a 75 m radius of the nest, whereas nest use depended largely on the size and average distance to feeding trees within that same area. Microhabitat characteristics were unrelated to whether females built or used nests. Although unrelated to nest site selection, social cues, specifically the average distance to conspecifics' nest and park sites, were related to maternal reproductive success; mothers whose litters were parked in closer proximity to others' nests experienced higher infant survival than those whose nests were more isolated. This is likely because nesting proximity facilitated communal crèche use by neighboring females. Together, these results suggest a complex pattern of nesting behaviors that involves females strategically building nests in areas with high potential resource abundance, using nests in areas according to their realized productivity, and communally rearing infants within a network of nests distributed throughout the larger communal territory.
Figure 2 in Monitoring the feeding and parental care behavior of a pair of free-living owls (Tyto furcata) in the nest during the reproductive period in Rio de Janeiro, Brazil
Figure 2. The first egg of the couple of Tyto furcata. Campos dos Goytacazes, RJ.
Figure3 in Population Status and Nesting Behavior of Red-Headed Vultures (Sarcogyps Calvus) at Dhorfirdi, Tanahun District, Nepal
Figure3. Nesting behavior of S. calvus
Figure1 in Population Status and Nesting Behavior of Red-Headed Vultures (Sarcogyps Calvus) at Dhorfirdi, Tanahun District, Nepal
Figure1. Location map showing vulture sighted areas in MTR
Figure2 in Population Status and Nesting Behavior of Red-Headed Vultures (Sarcogyps Calvus) at Dhorfirdi, Tanahun District, Nepal
Figure2. Summer and winter vulture population
Nonaggressive behavior: A strategy employed by an obligate nest invader to avoid conflict with its host species
<p>In addition to its builders, termite nests are known to house a variety of secondary opportunistic termite species so‐called inquilines, but little is known about the mechanisms governing the maintenance of these symbioses. In a single nest, host and inquiline colonies are likely to engage in conflict due to nestmate discrimination, and an intriguing question is how both species cope with each other in the long term. Evasive behaviour has been suggested as one of the mechanisms reducing the frequency of host‐inquiline encounters, yet, the confinement imposed by the nests' physical boundaries suggests that cohabiting species would eventually come across each other. Under these circumstances, it is plausible that inquilines would be required to behave accordingly to secure their housing. Here, we show that once inevitably exposed to hosts individuals, inquilines exhibit nonthreatening behaviours, displaying hence a less threatening profile and preventing conflict escalation with their hosts. By exploring the behavioural dynamics of the encounter between both cohabitants, we find empirical evidence for a lack of aggressiveness by inquilines towards their hosts. Such a nonaggressive behaviour, somewhat uncommon among termites, is characterised by evasive manoeuvres that include reversing direction, bypassing and a defensive mechanism using defecation to repel the host. The behavioural adaptations we describe may play an important role in the stability of cohabitations between host and inquiline termite species: by preventing conflict escalation, inquilines may improve considerably their chances of establishing a stable cohabitation with their hosts.</p>
Figure 9 in Behavior and nest architecture of the bee Caenohalictus alexandrei (Hymenoptera, Halictinae)
Figure 9. Pollinic resource used by C. alexandrei. (A-B) Taraxacum officinale: (A) Flower with adult female; (B) Pollen grains; (C-D) Bidens pilosa: (C) Flowers; (D) Pollen grains; (E-F) Senecio madagascariensis, (E) Flower with adult female; (F) Pollen grains. Scale: 100 µm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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