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1.
Sci Data ; 11(1): 579, 2024 Jun 04.
Artículo en Inglés | MEDLINE | ID: mdl-38834590

RESUMEN

Raphidioptera (snakeflies) are a holometabolan order with the least species diversity but play a pivotal role in understanding the origin of complete metamorphosis. Here, we provide an annotated, chromosome-level reference genome assembly for an Asian endemic snakefly Mongoloraphidia duomilia (Yang, 1998) of the family Raphidiidae, assembled using PacBio HiFi and Hi-C data from female specimens. The resulting assembly is 653.56 Mb, of which 97.90% is anchored into 13 chromosomes. The scaffold N50 is 53.50 Mb, and BUSCO completeness is 97.80%. Repetitive elements comprise 64.31% of the genome (366.04 Mb). We identified 599 noncoding RNAs and predicted 11,141 protein-coding genes in the genome (97.70% BUSCO completeness). The new snakefly genome will facilitate comparison of genome architecture across Neuropterida and Holometabola and shed light on the ecological and evolutionary transitions between Neuropterida and Coleopterida.


Asunto(s)
Genoma de los Insectos , Holometabola , Animales , Femenino , Holometabola/genética
2.
Zootaxa ; 5415(2): 309-320, 2024 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-38480202

RESUMEN

In this paper we describe the main morphological characteristics that distinguish the full-grown larva of Athripsodes taounate taounate, an Iberic-Maghrebian endemic. The conspecificity of the larva and adult was confirmed by DNA analysis. Morphological features that discriminate it from the described Iberian-Maghrebian species of Athripsodes are given.


Asunto(s)
Holometabola , Insectos , Animales , Insectos/anatomía & histología , Larva/anatomía & histología , África del Norte , Región Mediterránea
3.
Zootaxa ; 5406(3): 451-460, 2024 Feb 07.
Artículo en Inglés | MEDLINE | ID: mdl-38480140

RESUMEN

A new species of the Drusinae subfamily, Drusus chelchamaensis Ibrahimi & Mohammadi sp. nov., is described based on male genital morphology. The male of the new species is most similar to that of Drusus bayburtii akin 1983 (known from several places in Anatolia, Turkey), Drusus ketes Olh & Mey 2017 (in Olh et al. 2017) (known from the Hamedan Province, Iran), and Drusus kazanciae akin 1983 (known from the Hakkari Province, Turkey) and differs in the formation of superior appendages, intermediate appendages, inferior appendages, parameres, spinate area of segment VIII, and segment IX. The species is currently known only from Chel Chama Mountain in the Kurdistan Province of Iran and is the second known species of the Drusus caucasicus Species Complex from Iran. Chel Chama is part of the Zagros Mountains, which is rich in freshwater ecosystems, but currently with only a few reported species of caddisflies.


Asunto(s)
Holometabola , Insectos , Masculino , Animales , Insectos/anatomía & histología , Ecosistema , Irán , Agua Dulce
4.
Zootaxa ; 5406(1): 165-174, 2024 Feb 02.
Artículo en Inglés | MEDLINE | ID: mdl-38480158

RESUMEN

The microcaddisfly Neotropical genus Metrichia Ross, is recorded for the first time from the state of Tocantins, northern Brazil, through the discovery of two species: Metrichia elongata sp. nov. and Metrichia vulgaris Santos, Takiya & Nessimian 2016. Herein, the new species is described and illustrated based on males collected in a protected and preserved area in Cerrado biome of Tocantins. Metrichia elongata sp. nov. can be recognized mainly by the type and position of setae on the inferior appendages and morphology of the dorsolateral hook. The discovery of these species increases the number of Metrichia species in the Brazilian Cerrado from seven to eight and are only the eleventh and twelfth caddisfly species reported for Tocantins State.


Asunto(s)
Holometabola , Insectos , Masculino , Animales , Brasil , Ecosistema
5.
Zootaxa ; 5406(1): 105-122, 2024 Feb 02.
Artículo en Inglés | MEDLINE | ID: mdl-38480162

RESUMEN

The Limnephilus bipunctatus Species Group in Turkey is studied with two new species, Limnephilus bayburt sp. n. from northeastern Turkey and Limnephilus bercalan sp. n. from eastern Turkey, described and illustrated. Four additional species, L. bipunctatus Curtis 1834, L. caucasicus Schmid 1955, L. malickyi Sipahiler 1992, and L. transcaucasicus Martynov 1909 are also redescribed and illustrated. Limnephilus transcaucasicus is a new record for the Turkish fauna.


Asunto(s)
Holometabola , Insectos , Animales , Turquía
6.
Zootaxa ; 5406(1): 123-140, 2024 Feb 02.
Artículo en Inglés | MEDLINE | ID: mdl-38480161

RESUMEN

Species of the Neotropical genus Ilyobius Enderlein, 1910 (Megaloptera: Sialidae) are rare and poorly known because adults are infrequently collected in the field and the larvae have restricted habitat in the stream, facts that make obtaining specimens difficult to access for study. Herein we redescribe the female, describe the male and the larva of Ilyobius nubilus (Navs, 1933) based on specimens collected on the coast of So Paulo State. Adults were obtained mainly by rearing larvae in laboratory condition until adult emergence. The holotype for Ilyobius brasiliensis (Navs, 1936) was examined, and we contand that it is a valid species. Therefore, we do not corroborate its synonymy with I. nubilus. Ilyobius nubilus is a member of the I. chilensis group, and the male genitalia structure, described in this work, also supports its inclusion in this species group.


Asunto(s)
Holometabola , Femenino , Masculino , Animales , Brasil , Larva , Ecosistema , Laboratorios
7.
Zootaxa ; 5418(5): 576-588, 2024 Mar 04.
Artículo en Inglés | MEDLINE | ID: mdl-38480340

RESUMEN

We describe a new species of the genus Calamoceras which currently has only two species: Calamoceras illiesi Malicky & Kumanski 1974 and Calamoceras marsupus Brauer 1865. We also discuss its ecology by analyzing some biophysical parameters. The larva and the adult of this new species, Calamoceras riffensis sp. nov. have been found by specialists from the Rif region in northwestern Morocco since 1998. All the specimens collected differ from the two known species by conspicuous morphological differences.


Asunto(s)
Holometabola , Insectos , Animales , Marruecos , Larva
8.
Zootaxa ; 5404(1): 5-13, 2024 Jan 25.
Artículo en Inglés | MEDLINE | ID: mdl-38480410

RESUMEN

Fernando A. Silveira had the unique combination of being a sagacious scientist and a remarkable human being. Throughout his career, he made significant contributions to understanding bee diversity and keenly spread this scientific information to the academic community at large and beyond the university walls. His rich character, warm heart, strong voice and laughter are missed by those privileged to be Fernandos students, friends, mentors, and family. In this volume, we honor Fernando A. Silveira, who prematurely passed away at the age of 62, leaving three sons, his wife, and numerous friends.


Asunto(s)
Holometabola , Masculino , Humanos , Abejas , Animales , Universidades
9.
Zootaxa ; 5403(2): 256-268, 2024 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-38480444

RESUMEN

A little-known antlion genus, i.e., Holzezus Krivokhatsky, 1992, with its type species H. compactus Krivokhatsky, 1992, is first recorded from China based on newly collected specimens from Turpan-Hami region of Xinjiang. In this region, another rare genus Subgulina Krivokhatsky, 1996, with its type species S. kerzhneri Krivokhatsky, 1996, in which the males possess a sac-like structure from the gula, is rediscovered from China. In addition, we briefly discuss the complicated phylogenetic relationships among the genera of Myrmecaelurini and other related lineages with similar habitat preference to the arid areas.


Asunto(s)
Holometabola , Masculino , Animales , Filogenia , China , Ecosistema , Manejo de Especímenes , Insectos
10.
Arthropod Struct Dev ; 79: 101344, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38412706

RESUMEN

The Trichoptera, holometabolous aquatic insects found worldwide except in Antarctica, exhibit a unique feature in their sperm, which are solely nucleated (eupyrene). Current knowledge on Trichoptera sperm is limited to Old World species. To enhance our understanding of their reproductive biology and contribute to systematic discussions, we describe the male reproductive system and spermatozoa of Smicridea (Rhyacophylax) iguazu Flint, 1983 (Hydropsychidae). This species lacks seminal vesicles, possesses piriform to oval-shaped testes with spermatozoa grouped in apical bundles and dense filamentous material filling other areas. The vasa deferentia are long and a pair of elongated accessory glands displays distinct proximal and distal regions. The relatively short (∼40 µm) spermatozoa are nucleated, aflagellated, and immobile. Further research could explore variations and assess the taxonomic utility of these features for genus identification within Hydropsychidae.


Asunto(s)
Holometabola , Semen , Masculino , Animales , Espermatozoides , Genitales Masculinos/anatomía & histología , Insectos/anatomía & histología
11.
Sci Rep ; 14(1): 4695, 2024 02 26.
Artículo en Inglés | MEDLINE | ID: mdl-38409429

RESUMEN

Insect feeding structures, such as mandibles, interact with the ingesta (food or/and substrate) and can be adapted in morphology, composition of material and mechanical properties. The foraging on abrasive ingesta, as on algae covering rocks, is particularly challenging because the mandibles will be prone to wear and structural failure, thus suggesting the presence of mandibular adaptations to accompany this feeding behavior. Adaptations to this are well studied in the mouthparts of molluscs and sea urchins, but for insects there are large gaps in our knowledge. In this study, we investigated the mandibles of a grazing insect, the larvae of the trichopteran Glossosoma boltoni. Using scanning electron microscopy, wear was documented on the mandibles. The highest degree was identified on the medial surface of the sharp mandible tip. Using nanoindentation, the mechanical properties, such as hardness and Young's modulus, of the medial and lateral mandible cuticles were tested. We found, that the medial cuticle of the tip was significantly softer and more flexible than the lateral one. These findings indicate that a self-sharpening mechanism is present in the mandibles of this species, since the softer medial cuticle is probably abraded faster than the harder lateral one, leading to sharp mandible tips. To investigate the origins of these properties, we visualized the degree of tanning by confocal laser scanning microscopy. The autofluorescence signal related to the mechanical property gradients. The presence of transition and alkaline earth metals by energy dispersive X-ray spectroscopy was also tested. We found Ca, Cl, Cu, Fe, K, Mg, Mn, P, S, Si, and Zn in the cuticle, but the content was very low and did not correlate with the mechanical property values.


Asunto(s)
Holometabola , Insectos , Animales , Larva , Microscopía Electrónica de Rastreo , Mandíbula/anatomía & histología
12.
PLoS One ; 19(2): e0297801, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38386678

RESUMEN

Hydropsyche and Arctopsyche are filter-feeding caddisflies (Order: Trichoptera; Family: Hydropsychidae) that are commonly used to monitor metal exposures in rivers. While tissue residue concentrations provide important bioaccumulation data regarding metal bioavailability, they do not provide information regarding the mechanisms of uptake and loss, or exposure history. This study examined the physiological processes that control Cu and Cd uptake and loss using a biokinetic bioaccumulation model. Larvae of each taxon were experimentally exposed to either water or food enriched with stable isotopes (65Cu and 106Cd). Dissolved Cu uptake (ku) was similar between species (2.6-3.4 L-1g 1d-1), but Cd uptake was 3-fold higher in Hydropsyche than Arctopsyche (1.85 L-1g 1d-1 and 0.60 L-1g 1d-1, respectively). Cu and Cd efflux rates (ke) were relatively fast (0.14 d-1-0.24 d-1) in both species, and may explain, in part, their metal tolerance to mine-impacted rivers. Food ingestion rates (IR), assimilation efficiency (AE) of 65Cu and 106Cd from laboratory diets were also derived and used in a biodynamic model to quantify the relative contribution of dissolved and dietary exposure routes. Results from the biodynamic model were compared to tissue concentrations observed in a long-term field study and indicated that because dissolved Cu and Cd exposures accounted for less than 20% of body concentrations of either taxon, dietary exposure was the predominant metal pathway. An estimation of exposure history was determined using the model to predict steady state concentrations. Under constant exposure conditions (dissolved plus diet), steady state concentrations were reached in less than 30 days, an outcome largely influenced by rapid efflux (ke).


Asunto(s)
Cobre , Holometabola , Animales , Cadmio , Bioacumulación , Isótopos , Insectos
13.
Radiol Artif Intell ; 6(1): e230006, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38231037

RESUMEN

In spite of an exponential increase in the volume of medical data produced globally, much of these data are inaccessible to those who might best use them to develop improved health care solutions through the application of advanced analytics such as artificial intelligence. Data liberation and crowdsourcing represent two distinct but interrelated approaches to bridging existing data silos and accelerating the pace of innovation internationally. In this article, we examine these concepts in the context of medical artificial intelligence research, summarizing their potential benefits, identifying potential pitfalls, and ultimately making a case for their expanded use going forward. A practical example of a crowdsourced competition using an international medical imaging dataset is provided. Keywords: Artificial Intelligence, Data Liberation, Crowdsourcing © RSNA, 2023.


Asunto(s)
Investigación Biomédica , Colaboración de las Masas , Holometabola , Animales , Inteligencia Artificial , Instituciones de Salud
14.
PLoS One ; 19(1): e0296077, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38198484

RESUMEN

BACKGROUND: Children's health services in many countries are moving from single condition diagnostic silo assessments to considering neurodevelopment in a more holistic sense. There has been increasing recognition of the importance of clinical overlap and co-occurrence of different neurotypes when assessing neurodivergent children. Using a cross-sectional service evaluation design, we investigated the overlap of neurodivergences in a cohort of children referred for autism assessment, focusing on motor, learning, and attention/activity level domains. We aimed to determine what proportion of children in a cohort referred for an autism assessment showed traits of additional neurodivergences, and what proportion were further investigated. METHODS: We evaluated anonymised medical records of children aged between two and 17 years referred for autism assessment. We used validated questionnaires to assess for neurodivergent traits. A weighted scoring system was developed to determine traits in each neurodevelopmental domain and a score above the median was considered to indicate a neurodivergent trait. Evidence of further investigations were recorded. We then examined the relationships between autism traits and traits of additional neurodivergence. RESULTS: 114 participants were included for evaluation. 62.3% (n = 71) had completed questionnaires for analysis. Of these, 71.8% (n = 51) scored greater than the median for at least one additional neurotype, indicating the presence of other neurodivergent traits, and 88.7% (n = 64) attracted a diagnosis of autism. Only 26.3% of children with evidence of additional neurotypes were further investigated beyond their autism assessment. CONCLUSIONS: Our results demonstrate the extensive overlap between additional neurodivergent traits in a population of children referred with suspected autism and show that only a small proportion were further investigated. The use of standardised questionnaires to uncover additional neurodivergences may have utility in improving the holistic nature of neurodevelopmental assessments.


Asunto(s)
Trastorno Autístico , Trastornos Generalizados del Desarrollo Infantil , Holometabola , Niño , Humanos , Animales , Preescolar , Adolescente , Trastorno Autístico/diagnóstico , Estudios Transversales , Salud Infantil
15.
An Acad Bras Cienc ; 95(suppl 2): e20191075, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38055557

RESUMEN

This study characterizes the diversity of Sisyridae in an area of riparian forest (21°36'47"S; 47°49'4"W) at the Estação Ecológica de Jataí, in the municipality of Luiz Antônio, State of São Paulo, Brazil. The geographic ranges of Climacia carpenteri Parfin & Gurney, 1956 and Sisyra panama Parfin & Gurney, 1956 are expanded to include the State of São Paulo.


Asunto(s)
Holometabola , Himenópteros , Animales , Brasil , Insectos , Bosques
16.
Arthropod Struct Dev ; 76: 101297, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37607434

RESUMEN

Adult hangingflies are very sensitive to humidity, thereby frequently being used as ecological indicators to assess the degradation of the environment, especially forest ecosystems. Studies on the sense organs associated with hygro- and thermo-sensitivity, however, have been scant. Here, the ultramorphology and distribution of the flagellar sensilla were investigated in the adult hangingflies Bittacus planus Cheng, 1949 and Bittacus sinicus Issiki, 1931 using scanning electron microscopy. Four types of sensilla are identified in B. planus, including sensilla campaniformia, sensilla chaetica (SC1, SC2), sensilla basiconica (SB1, SB2), and sensilla coeloconica. In B. sinicus, sensilla chaetica III are present additionally from 7th to 14th flagellomeres. Abundant sensilla coeloconica are present on the flagella of Bittacus. Sensilla basiconica I are situated at the joints of flagellomeres. Sensilla campaniformia are densely distributed on the basal half of the first flagellomere, but scarcely on other flagellomeres. Sensilla chaetica II are present on the distal three flagellomeres. The size, abundance, and distribution of flagellar sensilla differ considerably between B. planus and B. sinicus. We infer that the abundance of sensilla coeloconica is likely associated with the hygro- and thermo-sensitivity in Bittacidae. Studies of flagellar sensilla can provide valuable information for subsequent electrophysiological, behavioral, biogeographical, and phylogenetic analyses of Bittacidae.


Asunto(s)
Ecosistema , Holometabola , Animales , Filogenia , Sensilos , Flagelos
17.
J Insect Sci ; 23(4)2023 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-37555695

RESUMEN

Protohermes xanthodes (Megaloptera, Corydalidae, Protohermes), widespread species in China, is an important insects treated as food and medicine for aquaculture. In this study, the gut microbiota was investigated by 16S rRNA microbial profiling. A total of 600 Amplicon Sequence Variants (ASV) were identified, Proteobacteria and Firmicutes were the main dominant phyla, and 27 genera ran through the entire digestive tract, mainly Hafnia-Obesumbacterium (Proteobacteria), Lactobacillus and Lactococcus (Firmicutes). The PICRUSt2 functional prediction of gut microbiota showed that the foregut abundant pathways related to metabolism, environmental information processing, and genetic information processing. while the midgut had the most abundant metabolic and environmental information processing pathways, including the prominent phosphotransferase system (PTS), propionate metabolism, and ß-lactam resistance. The hindgut had the weakest metabolic function, but its genetic information processing was more abundant than the foregut and midgut. Additionally, 26 strains of bacteria were isolated from the midgut microorganisms, with Firmicutes being the dominant bacteria, and some of the purified bacteria had potential probiotic and anti-pathogen functions. These findings suggest that there are differences in the microorganisms of the different gut floras of the larvae, and each flora has specific metabolic functions. This research could be used to further understand the function of gut microorganisms, explore the co-evolution of P. xanthodes and gut microorganisms, and promote healthy breeding based on gut microorganisms.


Asunto(s)
Microbioma Gastrointestinal , Holometabola , Animales , Larva/microbiología , Microbioma Gastrointestinal/genética , ARN Ribosómico 16S/genética , Bacterias , Insectos/genética
18.
J Insect Sci ; 23(4)2023 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-37551937

RESUMEN

Tonic immobility is a passive antipredator strategy employed late in the predation sequence that may decrease individual mortality in prey animals. Here, we investigate how energetic state and genetic predisposition influence antipredator decision-making in green lacewing larvae, Chrysoperla plorabunda (Fitch), using simulated predatory encounters. We demonstrate that tonic immobility is a plastic response influenced by energetic resource limitation. Larvae exposed to 1 or 2 days of food deprivation initiate tonic immobility more often and with less physical provocation than individuals fed ad libitum. Recently molted individuals exposed to food deprivation, the individuals most energetically challenged, engage in tonic immobility at a higher rate than any other group. We also find that variation in antipredator strategy between individuals is partly the result of within-population genetic variation. We estimate the propensity to enter tonic immobility to have a broad-sense heritability of 0.502. Taken together our results suggest that larval lacewings under energetic stress are more likely to engage in tonic immobility. Yet, energetic state does not explain all within-population variation, as individuals can have a genetic predisposition for tonic immobility.


Asunto(s)
Holometabola , Insectos , Animales , Larva/genética , Insectos/fisiología , Predisposición Genética a la Enfermedad , Conducta Predatoria
19.
Proc Natl Acad Sci U S A ; 120(31): e2211558120, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37487066

RESUMEN

Urban adaptation to climate change is a global challenge requiring a broad response that can be informed by how urban societies in the past responded to environmental shocks. Yet, interdisciplinary efforts to leverage insights from the urban past have been stymied by disciplinary silos and entrenched misconceptions regarding the nature and diversity of premodern human settlements and institutions, especially in the case of prehispanic Mesoamerica. Long recognized as a distinct cultural region, prehispanic Mesoamerica was the setting for one of the world's original urbanization episodes despite the impediments to communication and resource extraction due to the lack of beasts of burden and wheeled transport, and the limited and relatively late use of metal implements. Our knowledge of prehispanic urbanism in Mesoamerica has been significantly enhanced over the past two decades due to significant advances in excavating, analyzing, and contextualizing archaeological materials. We now understand that Mesoamerican urbanism was as much a story about resilience and adaptation to environmental change as it was about collapse. Here we call for a dialogue among Mesoamerican urban archaeologists, sustainability scientists, and researchers interested in urban adaptation to climate change through a synthetic perspective on the organizational diversity of urbanism. Such a dialogue, seeking insights into what facilitates and hinders urban adaptation to environmental change, can be animated by shifting the long-held emphasis on failure and collapse to a more empirically grounded account of resilience and the factors that fostered adaptation and sustainability.


Asunto(s)
Aclimatación , Holometabola , Humanos , Animales , Arqueología , Cambio Climático , Comunicación
20.
Zootaxa ; 5293(3): 581-595, 2023 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-37518466

RESUMEN

A morphological description of the last (fifth) instar larva of Macrostemum floridum (Navás 1929), its life cycle, and feeding habits are provided. The study was conducted along the Khlong Yan Stream in Kaengkrung National Park, southern Thailand. Larval identification was achieved by the metamorphotype method of associating immature stages with the adult. A graph of head capsule widths for all instars is provided. Gut content analysis showed that the main food items were diatoms, green algae, and blue-green algae. The larvae construct fixed retreats and feed as collecting filterers.


Asunto(s)
Holometabola , Insectos , Animales , Larva/anatomía & histología , Insectos/anatomía & histología , Tailandia , Parques Recreativos , Hábitos
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