Southwestern Naturalist最新文献

{"title":"ALOPECIA IN A POPULATION OF RAFINESQUE'S BIG-EARED BATS (CORYNORHINUS RAFINESQUII)","authors":"Chester O. Martin, M. S. Wolters","doi":"10.1894/0038-4909-67.1.59","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.59","url":null,"abstract":"ABSTRACT We documented extreme alopecia in a maternal colony of Rafinesque's big-eared bats (Corynorhinus rafinesquii) roosting beneath a concrete bridge in west-central Mississippi in the spring of 2000. Approximately half of the colony lacked hair dorsally and ventrally in the chest, shoulder, and neck regions. We again observed partially hairless bats during 2004 and 2011 surveys. Dermatophyte cultures on skin and hair samples were positive on specimens examined in 2004, but fungi identified were nonpathogenic. Environmental stress is implicated as a potential factor contributing to alopecia in the population. RESUMEN En la primavera del año 2000, se documentó alopecia extrema en una colonia maternal del Murciélago orejón de Rafinesque (Corynorhinus rafinesquii) perchada bajo un puente de concreto en el área oeste-central de Mississippi. Aproximadamente la mitad de la colonia carecía cabello en las áreas dorsales y ventrales del pecho, cuello y de los hombros. Murciélagos parcialmente calvos fueron observados también durante los monitoreos de 2004 y 2011. Culturas de dermatofitos dieron positivas en muestras de la piel y del pelo tomadas en el muestreo del 2004, pero los hongos identificados no fueron patógenos. Estrés ambiental es considerado como un factor potencial que ha causado alopecia en la población.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"59 - 62"},"PeriodicalIF":0.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43310205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CLARENDONIAN (LATE MIOCENE) BATS (CHIROPTERA, VESPERTILIONIDAE AND MOLOSSIDAE) FROM THE OGALLALA FORMATION, HIGH PLAINS OF OKLAHOMA, USA","authors":"N. Czaplewski, Kent S. Smith","doi":"10.1894/0038-4909-67.1.77","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.77","url":null,"abstract":"Abstract Among the small vertebrate fossils of late Miocene age recently recovered from the Ogallala Formation in western Oklahoma are three taxa of bats. The bat fossils occurred together with vertebrate fossils of the Whisenhunt local fauna of Clarendonian age, biochron Cl2, from the Whisenhunt Quarry and another nearby locality tentatively assigned to the same local fauna. The only previous record of fossil bats from the area was of Myotis cf. yumanensis. We prefer to call the previous record of Myotis species indeterminate and provide the first Oklahoma Miocene records of a pallid bat, Antrozous cf. pallidus (Vespertilionidae), and a free-tailed bat of indeterminate genus (Molossidae). The molossid is a relatively large species approximately the size of the recent big free-tailed bat, Nyctinomops macrotis. Although the sample is very limited, these are the only pre-Quaternary bats known from Oklahoma. Resumen Entre los fósiles de pequeños vertebrados del Mioceno tardío recuperados recientemente en la Formación Ogallala del oeste del estado de Oklahoma, USA, se encuentran los restos de tres taxones de murciélagos. Esos fósiles se han hallado junto con otros fósiles de vertebrados de la fauna local de Whisenhunt de la edad Clarendoniense, biocrón Cl2, de la Whisenhunt Quarry y en otra localidad cercana, tentativamente asignada a la misma fauna local. El único registro anterior de fósiles de murciélagos de la zona fue de Myotis cf. yumanensis. Preferimos designar el registro anterior de Myotis de forma indeterminada según la especie. Además, proporcionamos los primeros registros del Mioceno de Oklahoma del murciélago pálido, Antrozous cf. pallidus (Vespertilionidae) y de un murciélago de cola libre de género indeterminado (Molossidae). El molósido es una especie relativamente grande, aproximadamente del tamaño del actual murciélago de cola libre grande, Nyctinomops macrotis. Aunque la muestra es muy pequeña, estos son los únicos murciélagos precuaternarios conocidos en Oklahoma.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"77 - 86"},"PeriodicalIF":0.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43077190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MICROBIAL ASSOCIATIONS WITH METCALF'S TRYONIA, TRYONIA METCALFI (GASTROPODA: COCHLIOPIDAE), AN IMPERILED CIÉNEGA ENDEMIC","authors":"Russell L. Minton, Kathryn E. Perez","doi":"10.1894/0038-4909-67.1.65","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.65","url":null,"abstract":"Abstract The Chihuahuan Desert swamps are a hotspot for imperiled organisms including freshwater springsnails and bacteria. Many of these taxa are endemic to the desert and to the individual waterbodies where they occur. Efforts to conserve diversity in these threatened areas must account for the life history of the organisms, but also interactions between organisms including microbes. We documented the microbial assemblage associated with Tryonia metcalfi, a critically imperiled freshwater snail endemic to a ciénega system in western Texas. We identified 14 bacterial families in our snail samples and determined a core assemblage of 19 bacterial taxa (4 of which represented novel lineages) that are likely dependent on the snail. Future conservation efforts involving T. metcalfi and its environment should therefore consider the microbial diversity associated with both the snail and the ciénegas. Resumen En las ciénegas del desierto de Chihuahua habitan muchos organismos en peligro, entre ellos caracoles de agua dulce y bacterias. Muchos de estos taxones son endémicos del desierto y de los específicos cuerpos de agua donde ocurren. Esfuerzos para conservar la diversidad en estas áreas amenazadas deben tomar en cuenta la historia de vida de los organismos junto con las interacciones entre ellos, incluyendo microbios. Documentamos el conjunto microbiano relacionado con Tryonia metcalfi, una especie de caracol de agua dulce en peligro de extinción, endémica a un sistema de ciénagas en el oeste de Texas. Identificamos 14 familias bacterianas en nuestras muestras de caracoles y determinamos un conjunto principal de 19 taxones bacterianos; cuatro representan nuevos linajes, que probablemente dependen del caracol. En el futuro, los esfuerzos para proteger a T. metcalfi y su ambiente en consecuencia deben considerarla diversidad microbiana asociada con esta especie de caracol y la ciénega.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"65 - 70"},"PeriodicalIF":0.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42545305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TWO NEW STATE RECORDS FOR CRANE FLIES (INSECTA: DIPTERA: TIPULOIDEA) ADDED TO THE ARKANSAS BIOTA","authors":"H. Robison, J. Gelhaus, C. T. McAllister","doi":"10.1894/0038-4909-67.1.70","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.70","url":null,"abstract":"Abstract Two new state records of crane flies (Tipuloidea) are reported from Arkansas. Tipula rossmani (Tipulidae) and Dicranomyia distans (Limoniidae) are documented from the state with specimens collected from northern Pulaski County. Resumen Se informan dos nuevos registros estatales de moscas grulla (Tipuloidea) de Arkansas. Tipula rossmani (Tipulidae) y Dicranomyia distans (Limoniidae) están documentadas en el estado con especímenes recolectados en el norte del condado de Pulaski.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"70 - 72"},"PeriodicalIF":0.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43507026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RECENT RECORD OF OCELOT (LEOPARDUS PARDALIS) IN MONTE GRANDE, AGUASCALIENTES, AFTER 12 YEARS","authors":"Héctor Ávila-Villegas, Gabriel Sánchez-Ávila, Sergio Avila-Villegas","doi":"10.1894/0038-4909-67.1.62","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.62","url":null,"abstract":"Abstract We recorded a 15-s video of a female ocelot (Leopardus pardalis) in Monte Grande, Aguascalientes, Mexico. This is the second ocelot record for Sierra Fria and the third for the state of Aguascalientes, confirming the expansion of the distribution range and habitat type for the species in Mexico. Resumen Obtuvimos un video de 15 s de un ocelote (Leopardus pardalis) hembra en Monte Grande, Aguascalientes, México. Este es el segundo registro de ocelote para la Sierra Fría y el tercero para el estado de Aguascalientes, confirmando la expansión del área de distribución y del tipo de hábitat para la especie en México.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"62 - 64"},"PeriodicalIF":0.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49121421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SEVEN-YEAR STUDY OF FOODS OF MOURNING DOVES (ZENAIDA MACROURA) IN SOUTHEASTERN NEW MEXICO","authors":"J. Hunt, T. Best","doi":"10.1894/0038-4909-67.1.72","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.72","url":null,"abstract":"Abstract In August and October 1982–1988, we collected 880 mourning doves (Zenaida macroura) in southeastern New Mexico to determine amounts and kinds of food items ingested and to evaluate variation in feeding habits by sex, age, time of day, month, and year. Crop contents did not differ significantly by sex, but did differ significantly by age, month, and year. Differences by age group may reflect differences in foraging ability between subadults and adults. Differences by month probably reflect differences in availability of food items. Differences by year may be related to differences in annual precipitation, although no such relationship was observed in this study. Crop contents also differed significantly by time of day collected, but this likely reflects activity patterns of birds and not true differences in diet. Resumen En agosto y octubre de 1982 a 1988 colectamos 880 palomas huilotas (Zenaida macroura) en el sureste de Nuevo México para determinar la cantidad y tipo de alimentos ingeridos, y para evaluar la variación en hábitos alimenticios por sexo, edad, hora del día, mes y año. Los contenidos del buche no fueron significativamente diferentes por sexo, pero sí por edad, mes y año. Las diferencias entre clases de edad pueden reflejar diferencias en la capacidad de forrajeo entre sub-adultos y adultos. Diferencias por mes probablemente reflejan diferencias en la disponibilidad de tipos de alimentos. Diferencias por año pueden relacionarse a diferencias en la precipitación anual, aunque tal relación no fue observada en este estudio. Los contenidos del buche fueron significativamente diferentes dependiendo de la hora del día, lo que probablemente representa patrones de actividad de estas aves y no verdaderas diferencias en dieta.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"72 - 77"},"PeriodicalIF":0.2,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41936384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"FRUIT SET, MATING, AND ANDROMONOECY IN POLANISIA DODECANDRA SUBSP. RIOGRANDENSIS (CLEOMACEAE)","authors":"M. Schlessman, Matea Mezic","doi":"10.1894/0038-4909-67.1.52","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.52","url":null,"abstract":"Abstract Andromonoecy, a sexual system in which individuals have both bisexual and male flowers, is rare in angiosperms as a whole, but fairly common in Cleomaceae. We conducted greenhouse experiments on how fruit maturation and self- vs. cross-fertilization affect male flower production in Polanisia dodecandra (L.) DC. subsp. riograndensis. When we prevented fruit maturation, plants produced only bisexual flowers, but when we allowed fruit maturation, plants produced alternating zones of bisexual and male flowers. This is the first documentation of andromonoecy in P. dodecandra subsp. riograndensis. Our results support the resource limitation hypothesis for the origin and maintenance of andromonoecy, but not the alternative dichogamy and architectural effects hypotheses. Polanisia dodecandra subsp. riograndensis has a mixed mating system. Self-pollination did not result in slower transitions from bisexual to male flowers, but for the initial zone of bisexual flowers, selfed fruits weighed less than crossed fruits. Andromonoecy is likely widespread in North American cleomids, and we urge field botanists to be mindful of floral sex when observing and collecting. Resumen La andromonoecia, un sistema sexual en el que las plantas individuales tienen flores tanto bisexuales como masculinas, es poco común en las angiospermas como conjunto, pero bastante común en las Cleomaceae. Realizamos experimentos en invernadero investigando cómo la maduración de la fruta, y la auto-fertilización vs. la fertilización cruzada, afectan la producción de flores masculinas en Polanisia dodecandra (L.) DC. subsp. riograndensis. Cuando prevenimos la maduración de la fruta, las plantas produjeron solo flores bisexuales. Pero cuando permitimos la maduración de la fruta, las plantas produjeron zonas alternas de flores masculinas y bisexuales. Esta es la primera documentación de andromonoecia en P. dodecandra subsp. riograndensis. Nuestros resultados apoyan la hipótesis de limitación de recursos en el origen y mantenimiento de la andromonocia, pero no las hipótesis alternativas de dicogamia y efectos arquitectónicos. Polanisia dodecandra subsp. riograndensis tiene un sistema de apareamiento mixto. La autopolinización no resultó en transiciones más lentas de flores bisexuales a masculinas, pero en la zona inicial de flores bisexuales las frutas autofecundadas pesan menos que las cruzadas. Es probable que la andromonoecia esté muy extendida en los cleomidos de América del Norte, e instamos a los botánicos de campo a que tengan en cuenta el sexo floral durante sus estudios de observación y recolección.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"52 - 58"},"PeriodicalIF":0.2,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42887699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A CENTURY OF BIRD BAND RECOVERIES IN VENEZUELA YIELD INSIGHTS INTO MIGRATORY ECOLOGY","authors":"Juan Carlos Fernández‐Ordóñez, S. Albert","doi":"10.1894/0038-4909-67.1.39","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.39","url":null,"abstract":"Abstract Numerous species of long-distance, Nearctic–Neotropical migratory birds use Venezuela as a nonbreeding or migratory stopover site. We examined band recovery data (recaptures or dead-recoveries) in Venezuela from 1926 to 2017. The band recovery data included 1,891 individual birds, representing 42 species from 17 families. Banding countries or islands of origin included Argentina, French Guiana, Aruba, Barbuda, the United States (U.S.) Virgin Islands, Trinidad, the continental United States, and Canada. Blue-winged teal (Spatula discors; 1,432 of 1,891 total recoveries, 75.7%), royal tern (Thalasseus maximus; 117/1,891, 6.2%), osprey (Pandion haliaetus; 93/1,891, 4.9%), common tern (Sterna hirundo; 88/1,891, 4.7%), and bobolink (Dolichonyx oryzivorus; 27/1,891, 1.4%) were the most common banded birds in our assessment. Despite ongoing banding efforts, other bird species banded in Venezuela have not been recovered or recaptured in the Western Hemisphere. Despite significant social and political challenges that impede scientific research in Venezuela, the bird-banding community in Venezuela is growing, and this growth will likely facilitate our understanding of the annual cycle of numerous avifauna. Resumen Numerosas de especies de aves migratorias neárticas–neotropicales de larga distancia utilizan Venezuela como hábitat durante la temporada no reproductiva, o como sitio de parada durante la migración. Examinamos los datos de anillamiento (recapturas o recapturas muertas) en Venezuela entre 1926–2017. Los datos de aves anilladas recuperadas incluyeron 1,891 aves de 42 especies y 17 familias. Los países o islas de origen de los marcajes incluyeron Argentina, Guayana Francesa, Aruba, Barbuda, las Islas Vírgenes Estadounidenses, Trinidad, Estados Unidas continental y Canadá. Las especies más comunes fueron Spatula discors (1,432 de 1,891 total, 75.7%), Thalasseus maximus (117/1,891, 6.2%), Pandion haliaetus (93/1,891, 4.9%), Sterna hirundo (88/1,891, 4.7%) y Dolichonyx oryzivorus (27/1,891, 1.4%). A pesar de esfuerzos para seguir anillando, otras especies de aves anilladas en Venezuela no se han recuperado en el hemisferio oeste. A pesar de los importantes desafíos sociales y políticos para llevar a cabo la investigación científica en Venezuela, el anillamiento de aves está creciendo en el país, y este crecimiento probablemente facilitará nuestra comprensión del ciclo anual de numerosa avifauna.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"39 - 51"},"PeriodicalIF":0.2,"publicationDate":"2023-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42026929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"WINTER DYNAMICS OF WHITE-TAILED DEER BROWSE NUTRITIVE VALUE IN THE SOUTHERN CROSS TIMBERS AND PRAIRIES OF TEXAS","authors":"A. Norris, Mike S. Miller, J. P. Muir, R. Harp, L. Kinman, N. M. Cherry","doi":"10.1894/0038-4909-67.1.27","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.27","url":null,"abstract":"Abstract White-tailed deer (Odocoileus virginianus) are aesthetically and economically important to landowners in Texas. Winter diets are heavily dependent upon browse species because of a decrease in herbaceous production during periodic winter droughts. Our objective was to determine the influence of winter progression on nitrogen and fiber concentration as well as in vitro organic matter disappearance (using white-tailed deer rumen inoculum) of six browse species of moderate to high dietary importance to white-tailed deer in north-central Texas. We also measured protein-precipitable phenolic concentrations because of their potential influence on digestion kinetics. We collected leaf and stem tips during prefrost, midwinter, and late-winter periods from four properties in the Cross Timbers and Prairies of Texas over 2 years. Browse nutritive value differed between years and there was an interaction between species and period for all nutritive values. Nitrogen and in vitro true digestibility decreased with winter progression, as browse nutritional value decreased rapidly after the first freeze when most species shed leaves. Protein-precipitable phenolics demonstrated species-by-year and species-by-period interactions. The decrease in nitrogen and increase of fibrous constituents, in combination with the presence of biologically active tannins, considerably reduced digestibility during late winter. These results indicate a need for vegetational species diversity to meet white-tailed deer nutritional requirements during the fall and winter. Resumen Los venados cola blanca (Odocoileus virginianus) tienen importancia estética y económica para los terratenientes en el estado de Texas en los Estados Unidos. Las dietas invernales de estos venados dependen mucho de las especies de ramoneo debido a un descenso en la producción de especies herbáceas por las sequias periódicas invernales. Nuestro objetivo fue determinar la influencia de la progresión del invierno en la concentración de nitrógeno y fibra, así como la desaparición in vitro de materia orgánica (utilizando inoculo ruminal de venado cola blanca) de seis especies de ramoneo de mediana a gran importancia forrajera para venados cola blanca en el centro-norte de Texas. Las concentraciones fenólicas precipitables de proteína también se midieron debido a su influencia potencial en la cinética de la digestión. Se recolectaron las puntas de hojas y tallos antes de la primera helada, a mediados y a finales del invierno de cuatro propiedades en la ecorregión de Cross Timbers y Prairies durante dos años. El valor nutricional de las especies de ramoneo difirió entre años y hubo una interacción entre especies y temporadas para todos los valores nutricionales. Las concentraciones de nitrógeno y la digestibilidad in vitro disminuyeron con el avance del invierno. El valor nutricional de las especies de ramoneo decreció rápidamente después de la primera helada cuando la mayoría de especies pierden las hojas. Lo","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"27 - 38"},"PeriodicalIF":0.2,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44618140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PRELIMINARY EXAMINATION OF THE EXOSKELETAL MICROBIOTA OF ARMADILLIDIUM VULGARE (THE COMMON PILL BUG)","authors":"Sondos Alhajouj, D. Starkey","doi":"10.1894/0038-4909-67.1.10","DOIUrl":"https://doi.org/10.1894/0038-4909-67.1.10","url":null,"abstract":"Abstract The purpose of this study was to preliminarily examine the breadth of microbial diversity on the pill bug (Armadillidium vulgare) exoskeleton. To address this question, we collected pill bugs at four time points (approximately 3 months apart) and analyzed their external microbiotas. Preliminary results suggest that each time point contained a unique microbiome, suggesting a rapid turnover of the exoskeletal microbiota. In total, we recovered 15 unique isolates, which we resolved into three phyla and nine families. There were only three instances in which we recovered a single isolate from multiple time points, and we recovered only a single isolate from all four time points. Among the phyla identified, sequence divergence ranged from a minimum of 6.2% (among isolates recognized within the Actinobacteria) to a maximum of ∼34% (between isolates recognized within the Actinobacteria vs. b-proteobacteria). Overall, the results of this study suggest that in order to gain a complete understanding of the exoskeletal microbiota of pill bugs, and perhaps other arthropods, researchers must examine a temporal scale. Resumen El propósito de este estudio fue examinar preliminarmente la amplitud de la diversidad microbiana en el exoesqueleto de la cochinilla (Armadillidium vulgare). Para abordar esta pregunta, se recolectaron cochinillas en cuatro temporadas (aproximadamente tres meses entre si) y se analizaron sus microbiotas externas. Los resultados preliminares sugieren que cada temporada contuvo un microbioma único, lo que sugiere una rápida renovación de la microbiota exoesquelética. En total, se recuperaron 15 aislamientos únicos, que se resolvieron en tres filos y nueve familias. Solo hubo tres instancias en las que se recuperó un solo aislamiento de múltiples temporadas y se recuperó solo un aislamiento de todas las cuatro temporadas. Entre los filos identificados, la divergencia de secuencias varió desde un mínimo del 6.2% (entre aislados reconocidos dentro de Actinobacteria) hasta un máximo de ∼34% (entre aislados reconocidos dentro de Actinobacteria frente a b-proteobacteria). En general, los resultados de este estudio sugieren que para obtener una comprensión completa de la microbiota exoesquelética de las cochinillas y quizás de otros artrópodos, se debe examinar a escala temporal.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":"67 1","pages":"10 - 17"},"PeriodicalIF":0.2,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43861234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}