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11 results for “Milvus milvus”
Fig. 3 in The First Report of the Feather Mite Pseudalloptinus milvulinus (Acariformes: Pterolichidae) from the Black Kite Milvus migrans in Japan
Fig. 3. Pseudalloptinus milvulinus, female (MPM Coll. No. 21696e). A, Dorsal view; B, ventral view; C, right setae c3 (ventral view).
Fig. 4 in The First Report of the Feather Mite Pseudalloptinus milvulinus (Acariformes: Pterolichidae) from the Black Kite Milvus migrans in Japan
Fig. 4. Pseudalloptinus milvulinus: A, male (MPM Coll. No. 21696a). B, female (MPM Coll. No. 21696d). A, Ventral view, terminal membrane (white arrowhead) and adanal suckers (dark arrowhead); B, spermatheca and speprmaducts of female.
Fig. 1 in The First Report of the Feather Mite Pseudalloptinus milvulinus (Acariformes: Pterolichidae) from the Black Kite Milvus migrans in Japan
Fig. 1. Pseudalloptinus milvulinus: A, D, E, male (MPM Coll. No. 21696a). B, C, female (MPM Coll. No. 21696d). A, B, Ventral view; C, idiosomal seta c3; D, disposition if setae g, 4a and ps3 (arrowheads) on ventral idiosoma; E, ventral view of opisthosoma with terminal membranes (white arrowhead) and adanal suckers (dark arrowhead).
Data and code for "Turning tables: food availability shapes dynamic aggressive behaviour among asynchronously hatching siblings in red kites Milvus milvus"
<p><strong>Abstract</strong></p> <p>Aggression represents the backbone of dominance acquisition in several animal societies, where the decision to interact is dictated by its relative cost. Among siblings, such costs are weighted in the light of inclusive fitness, but how this translates to aggression patterns in response to changing external and internal conditions remains unclear. Using a null-model-based approach, we investigate how day-to-day changes in food provisioning affect aggression networks and food allocation in growing red kite (<em>Milvus milvus</em>) nestlings, whose dominance rank is largely dictated by age. We show that older siblings, irrespective of age, change from targeting only close-aged peers (close-competitor pattern) when food provisioning is low, to uniformly attacking all other peers (downward heuristic pattern) as food conditions improve. While food allocation was generally skewed towards the older siblings, the youngest sibling in the nest increased its probability of accessing food as more was provisioned and as downward heuristic patterns became more prominent, suggesting that different aggression patterns allow for catch-up growth after periods of low food. Our results indicate that dynamic aggression patterns within the nest modulate environmental effects on juvenile development by influencing the process of dominance acquisition and potentially impacting the fledging body condition, with far-reaching fitness consequences.</p>
Fig. 2 in The First Report of the Feather Mite Pseudalloptinus milvulinus (Acariformes: Pterolichidae) from the Black Kite Milvus migrans in Japan
Fig. 2. Pseudalloptinus milvulinus, male (MPM Coll. No. 21696a). A, Dorsal view; B, ventral view.
Milvus milvus SPAdes preassembly
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Milvus milvus decontaminated FSCR
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Milvus milvus decontaminated gx
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Data from: Preen oil chemical composition encodes individuality, seasonal variation and kinship in black kites Milvus migrans
Evidence that bird odour can encode social information that can be used in chemical communication is growing, but is restricted to a few taxonomic groups. Among birds, diurnal raptors (i.e. birds from the Accipitriformes and Falconiformes order) have always been considered as mainly relying on their visual abilities. Although they seem to have a functional sense of smell, whether their odour can convey social information has yet to be determined. Combining gas-chromatography-mass-spectrometry (GCMS) and microsatellite data, we tested whether chemical compounds from preen gland secretions can encode sex, age, individuality, seasonal differences and genetic relatedness in the gregarious accipitriform black kite Milvus migrans. While no differences in preen oil composition were found between age classes, an individual signature was detected. While a seasonal variation was found in both sexes, compounds differ between sexes in the non-breeding season. Finally, a significant correlation between chemical proximity and genetic proximity was detected in male-male dyads and male-female dyads but not in female-female dyads. Our study provides the first evidence in raptors that preen secretion can convey information that may potentially be used in individual recognition, reproductive synchronization and inbreeding avoidance, and suggests that raptors may rely upon their olfactory abilities more than previously thought. This study opens promising avenues for further studies in raptor chemical communication.
Fig. 5 in The First Report of the Feather Mite Pseudalloptinus milvulinus (Acariformes: Pterolichidae) from the Black Kite Milvus migrans in Japan
Fig. 5. Pseudalloptinus milvulinus, legs: A–D, male (MPM Coll. No. 21696c). E, F, female (MPM Coll. No. 21696d). A, B, Legs I and II of male, respectively; C, E, tarsus, tibia and genu of male and female, respectively; D, F, tarsus and tibia of male and female, respectively.
Data from: Preen oil chemical composition encodes individuality, seasonal variation and kinship in black kites Milvus migrans
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