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autumn; beak; body weight; linear models; microstructure; population structure; squid; South China Sea
Abstract:
... This study aimed to explore the feasibility of using an upper beak microstructure to estimate the age of purpleback flying squid (Sthenoteuthis oualaniensis). From these microstructures, the age and growth of squid caught from January to March and May to August in 2018, 2019, and 2020 in the waters surrounding the Xisha Islands in the South China Sea were determined. We found three typical growth ...
... In some plants and animals, microtubules attach across the length of the chromosome in mitosis, forming a holocentromere instead of a single centromeric locus. A new study in Cell shows that in the holocentric beak sedge Rhynchospora, holocentromeres also impact genomic architecture, epigenome organization, and karyotype evolution. ...
... Intraspecific recurrent selection in V. vinifera is an effective method for breeding of high quality, disease-, cold-, and drought-resistance grapes. Exploring the optimal treatment methods for grape (V. vinifera) seeds can help to accelerate the process of intraspecific recurrent selection and improve breeding efficiency. In this study, seeds of six V. vinifera varieties were used as experimental ...
... Outbreaks of short beak dwarf syndrome caused by novel goose parvovirus (NGPV) have been prevalent in China since 2015, resulting in a high mortality rate of ducks. Herein we evaluated differences between two NGPV strains: Muscovy duck‐origin (AH190917‐RP: MD17) and Cherry Valley duck‐origin (JS191021‐RP: CVD21) NGPV. Both of them showed certain level of pathogenicity to primary duck embryo fibrob ...
... Yeonsan Ogye (OGYE; Gallus gallus domesticus) is a rare indigenous chicken breed that inhabits the Korean Peninsula. This breed has completely black coloring, including plumage, skin, eyes, beak, and internal organs. Despite these unique morphological characteristics, the population of OGYE has declined without in-depth research into their genome research. Therefore, this study aimed to compare th ...
... The red-crowned crane (Grus japonensis) is a critically endangered species. Three-dimensional–printed prosthetic beaks made of titanium alloy and polyether ether ketone (PEEK) were used to repair the beak of a red-crowned crane that had a complete fracture of the anterior maxillary bone and rhinotheca. The physical properties and stability of the prostheses and changes in the crane's behaviors aft ...
... Echidnas are commonly known as ‘spiny ant-eaters’, but long-beaked echidnas (Zaglossus spp.) do not eat ants, whereas short-beaked echidnas (Tachyglossus aculeatus) eat other invertebrates as well as ants. The differences in skull morphology between short- and long-beaked echidnas are related to the differences in their diets, and I tested the hypothesis that there would be differences in beak len ...
... Injurious pecking, commonly controlled by beak trimming (BT), is a widespread issue in laying hens associated with thwarted foraging. This controlled study compared the effect in intact and beak-trimmed pullets of providing pecking pans to eight treatment flocks from six weeks of age. Flocks (mean size 6843) comprised eight British Blacktail, six Lohmann Brown and two Bovans Brown. All young birds ...
... The epitypification of the Linnaean name Crepis bursifolia is discussed. An illustration from Boccone's Museo di piante rare della Sicilia, Malta, Corsica, Italia, Piemonte, e Germania was correctly designated as lectotype by Jiménez López & al. in 2013 according to Art. 7.11 of the ICN. However, this image lacks some of the important characters required for a critical identification of the specie ...
... We performed a laboratory experiment on caged, domesticated Australian Zebra Finches (Taeniopygia guttata castanotis) to assess the effects of antimicrobial treatment applied to birds' plumage on the feather microbial loads of breeding pairs and their associated reproductive performance. Treatments included an experimental group that experienced frequent misting with a broad-spectrum antimicrobial ...
... Kidney bean (Phaseolus vulgaris L.), also known as common bean, dry bean, or French bean, is one of the most valuable and highly nutritious legume crops cultivated and consumed worldwide (Blair et al. 2012; Choudhary et al. 2018). It is an important edible food and one of the most economically important vegetable crops in China. It is widely grown in Heilongjiang Province in China. In July 2020, l ...
... China is one of the largest markets for pecan (Carya illinoinensis) consumption in the world, and pecan production in China has increased since 2008 (Zhang et al. 2015). From July to September 2019 and 2020, leaf black spot was observed on several pecan cultivars, including Pawnee, Burkett, Kiowa, and Western Schley, in the germplasm in Liuhe County, Nanjing, Jiangsu Province, China. Disease incid ...
... Ophiopogon japonicus (L. f.) Ker-Gawl, a traditional Chinese medicinal plant, is widely cultured in China. The root of O. japonicus is used as the main ingredient in many prescriptions. It is rich in chemical components for steroidal saponins, homoisoflavonoids, and polysaccharides, which have various pharmacological activities, such as cardiovascular protection, anti-inflammation, and antidiabete ...
... Boxelder (Acer negundo) is a tree native to North America. In Europe it is considered a dangerous invasive species, and assigned to the highest (fourth) category of environmental hazard (Tokarska-Guzik et al. 2012). The tree can threaten a wide range of ecosystems and compete with the native flora. Shoot dieback was observed on 20% of boxelder in July 2018 and 2019 in Bryzgiel (N53°59.963′ E23°04. ...
Miocene epoch; Mucuna; basins; beak; biogeography; center of diversity; fossils; paleobotany; palynology; phylogeny; tropics; Vietnam
Abstract:
... The genus Mucuna Adans. (Papilionoideae, Fabaceae) contains approximately 105 extant species. It is widely distributed in pantropical areas, with its center of diversity located in Asia. Recent molecular phylogenetic analyses investigated the historical biogeography of the genus; however, a lack of fossil evidence has limited a fuller understanding of the genus. Here, we present the first macrofos ...
... Understanding the biogeographical patterns, and evolutionary and environmental drivers, underpinning morphological diversity are key for determining its origins and conservation. Using a comprehensive set of continuous morphological traits extracted from museum collections of 8353 bird species, including geometric morphometric beak shape data, we find that avian morphological diversity is unevenly ...
... Duck short beak and dwarfism syndrome (SBDS) is a viral infectious disease caused by novel goose parvovirus (NGPV), which has been responsible for serious economic losses to the Chinese duck industry in recent years. Currently, there is no effective vaccine against this disease. In this study, we developed an inactivated virus vaccine candidate for SBDS based on NGPV strain DS15 isolated from a du ...
... Scopulariopsis brevicaulis, a soil saprophyte, is the most common dermatomycotic mould and causes deep fungal infection. Ten canaries died in a flock of 200 and, at necropsy, S. brevicaulis was isolated from lung and beak samples. Macroscopically, the colonies were flat, velvety or powdery, white, tan, dark brown, grey or black. Microscopically, the isolated fungus had hyaline and septate hyphae, ...
... In many songbird species, young birds learn their song from adult conspecifics. Like much animal communication, birdsong is multimodal: singing is accompanied by beak and body movements. We hypothesized that these visual cues could enhance vocal learning thus partly explaining the reduced learning from unimodal audio playbacks compared to multimodal live social tutoring observed in many birdsong s ...
Mariana Díaz-Santana-Iturrios; Viridiana Zepeda-Benitez; Renata Pacheco-Ovando; Claudio F. Cornejo; José Miguel Cerda; César Augusto Salinas-Zavala; Jasmín Granados-Amores
... Cephalopods have upper and lower chitinous beaks, and their shape can be used to identify species. However, the morphological attributes of beaks are commonly obtained from sources that contain little information on shape, compromising the determination of taxa. Thus, in this study, we used geometric morphometrics to analyze inter-specific differences in beak shape of six octopus species from the ...