Pub Date : 2023-04-12eCollection Date: 2023-01-01DOI: 10.1055/s-0043-1768024
David Fell, Preston H Blomquist
Purpose To assess the various approaches to endophthalmitis prevention following traumatic open-globe injury (OGI) repair. Methods A research electronic data capture (REDCap) questionnaire evaluating the usage of antibiotics and steroids in patients with OGI was distributed to program directors of all U.S. ophthalmology residency programs using the Association of University Professors of Ophthalmology program directors' listserv. Completed questionnaires were analyzed for treatment patterns. Results The REDCap questionnaire was distributed to 111 programs, with 32 residency programs responding. Two responses were excluded. Ninety percent (27/30) of included programs used perioperative intravenous (IV) antibiotics, with 78% (21/27) of those giving one dose only. At the time of surgery, 27% (8/30) of programs gave intravitreal antibiotics and 60% (18/30) gave subconjunctival antibiotics. Postoperatively, 100% (30/30) gave topical antibiotics and 97% (29/30) gave topical steroids. Only 53% of responders discharged patients on oral antibiotics. Of the three programs who did not use IV antibiotics, all three gave intravitreal therapy and one also discharged patients on oral antibiotics. Conclusion There is a large variation in practice patterns for endophthalmitis prophylaxis among residency programs. Further investigation is needed to compare rates of endophthalmitis between these protocols and establish a safe and minimally burdensome standard of care.
{"title":"Antibiotic Protocols for Endophthalmitis Prophylaxis Following Open-Globe Repair: A Survey of U.S. Residency Programs.","authors":"David Fell, Preston H Blomquist","doi":"10.1055/s-0043-1768024","DOIUrl":"10.1055/s-0043-1768024","url":null,"abstract":"<p><p><b>Purpose</b> To assess the various approaches to endophthalmitis prevention following traumatic open-globe injury (OGI) repair. <b>Methods</b> A research electronic data capture (REDCap) questionnaire evaluating the usage of antibiotics and steroids in patients with OGI was distributed to program directors of all U.S. ophthalmology residency programs using the Association of University Professors of Ophthalmology program directors' listserv. Completed questionnaires were analyzed for treatment patterns. <b>Results</b> The REDCap questionnaire was distributed to 111 programs, with 32 residency programs responding. Two responses were excluded. Ninety percent (27/30) of included programs used perioperative intravenous (IV) antibiotics, with 78% (21/27) of those giving one dose only. At the time of surgery, 27% (8/30) of programs gave intravitreal antibiotics and 60% (18/30) gave subconjunctival antibiotics. Postoperatively, 100% (30/30) gave topical antibiotics and 97% (29/30) gave topical steroids. Only 53% of responders discharged patients on oral antibiotics. Of the three programs who did not use IV antibiotics, all three gave intravitreal therapy and one also discharged patients on oral antibiotics. <b>Conclusion</b> There is a large variation in practice patterns for endophthalmitis prophylaxis among residency programs. Further investigation is needed to compare rates of endophthalmitis between these protocols and establish a safe and minimally burdensome standard of care.</p>","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":"82 1","pages":"e86-e90"},"PeriodicalIF":0.0,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10804764/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90088743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-31DOI: 10.22201/ib.20078706e.2023.94.4927
Hymenolepis ackerti n. sp., parasite of rodents from the tallgrass prairie ecoregion of North America is herein characterized. This tapeworm occurs in 3 species of rodents including the hispid cotton rat Sigmodon hispidus, the eastern woodrat Neotoma floridana, and the prairie vole Microtus ochrogaster. A comparison against the other 10 congeneric species known from North America reveals that this species is different based on the size of the scolex, length of rostellar capsule, testicular arrangement, and the size of cirrus sac, seminal receptacle and eggs. A comparison of mitochondrial DNA reveals that tapeworms present in sympatric mammals share the same mitochondrial haplotype and feature similar morphology, supporting their recognition as a single species. The phylogenetic position of H. ackerti relative to other species is still to be resolved, since there are no homologous sequences available for most species in the genus. Given the pervasiveness of these parasites across rodents in the continent, we recommend diligence among scientists to build public archives of tapeworm specimens collected from mammals across North America, and globally. In the present manuscript, we propose a method to sample DNA while still allowing specimens to be postfixed for staining or fluid-preserved for long term storage.
{"title":"Hymenolepis ackerti n. sp. (Eucestoda: Hymenolepididae) infecting cricetid rodents from the central Great Plains of North America","authors":"","doi":"10.22201/ib.20078706e.2023.94.4927","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.4927","url":null,"abstract":"Hymenolepis ackerti n. sp., parasite of rodents from the tallgrass prairie ecoregion of North America is herein characterized. This tapeworm occurs in 3 species of rodents including the hispid cotton rat Sigmodon hispidus, the eastern woodrat Neotoma floridana, and the prairie vole Microtus ochrogaster. A comparison against the other 10 congeneric species known from North America reveals that this species is different based on the size of the scolex, length of rostellar capsule, testicular arrangement, and the size of cirrus sac, seminal receptacle and eggs. A comparison of mitochondrial DNA reveals that tapeworms present in sympatric mammals share the same mitochondrial haplotype and feature similar morphology, supporting their recognition as a single species. The phylogenetic position of H. ackerti relative to other species is still to be resolved, since there are no homologous sequences available for most species in the genus. Given the pervasiveness of these parasites across rodents in the continent, we recommend diligence among scientists to build public archives of tapeworm specimens collected from mammals across North America, and globally. In the present manuscript, we propose a method to sample DNA while still allowing specimens to be postfixed for staining or fluid-preserved for long term storage.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46835809","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}
Pub Date : 2023-03-31DOI: 10.22201/ib.20078706e.2023.94.5097
The helminth community of Lithobates spectabilis (n =77) was studied from Las Pilas (low altitude) and Metznoxtla (high altitude), Biosphere Reserve Barranca de Metztitlán, Hidalgo, Mexico. Species diversity was compared at the infracommunity and the component community level using Hill numbers, and the beta diversity was calculated. Five species of Digenea, 5 of Nematoda, and 2 of Acanthocephala were found in the frogs from the 2 localities. The species richness of parasites in Las Pilas (9 species) was higher than that of Metznoxtla (7 species). The helminth community in Las Pilas was dominated by nematodes and, in Metznoxtla, it was dominated by digeneans. The most prevalent species in Las Pilas was Foleyellides cf. flexicauda (65% of frogs were infected) and, in Metznoxtla, it was Megalodiscus americanus (76% were infected). Glypthelmins quieta was the species with the highest mean abundance in both localities (Las Pilas = 4.5; Metznoxtla = 11.0). The difference in species composition between the 2 localities was significant (Anosim; R = 0.54, p < 0.05). The differences in the composition of species of helminths between the 2 localities suggest that local environmental conditions are different, which may reflect differences in local host diet.
{"title":"Community structure of the helminths of Lithobates spectabilis (Anura: Ranidae) from two localities in the Biosphere Reserve Barranca de Metztitlán, Hidalgo, Mexico","authors":"","doi":"10.22201/ib.20078706e.2023.94.5097","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.5097","url":null,"abstract":"The helminth community of Lithobates spectabilis (n =77) was studied from Las Pilas (low altitude) and Metznoxtla (high altitude), Biosphere Reserve Barranca de Metztitlán, Hidalgo, Mexico. Species diversity was compared at the infracommunity and the component community level using Hill numbers, and the beta diversity was calculated. Five species of Digenea, 5 of Nematoda, and 2 of Acanthocephala were found in the frogs from the 2 localities. The species richness of parasites in Las Pilas (9 species) was higher than that of Metznoxtla (7 species). The helminth community in Las Pilas was dominated by nematodes and, in Metznoxtla, it was dominated by digeneans. The most prevalent species in Las Pilas was Foleyellides cf. flexicauda (65% of frogs were infected) and, in Metznoxtla, it was Megalodiscus americanus (76% were infected). Glypthelmins quieta was the species with the highest mean abundance in both localities (Las Pilas = 4.5; Metznoxtla = 11.0). The difference in species composition between the 2 localities was significant (Anosim; R = 0.54, p < 0.05). The differences in the composition of species of helminths between the 2 localities suggest that local environmental conditions are different, which may reflect differences in local host diet.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43276671","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}
Pub Date : 2023-03-31DOI: 10.22201/ib.20078706e.2023.94.5014
Patricia Hernández-Ledesma, Hilda Flores-Olvera
Entre las Nyctaginaceae, Mirabilis se caracteriza por tener inflorescencias cimosas e involucros de 5 brácteas connadas y acrescentes en fruto, subyacentes a 1-3 flores. Con 55-57 especies, es uno de los géneros más diversos dentro de la familia. El objetivo de este trabajo fue analizar la diversidad de Mirabilis en México, presentar el tratamiento taxonómico de las especies, una clave de identificación, datos de hábitat, fenología y mapas de distribución. Se presenta la sinonimia, se designa el lectotipo para Mirabilis aggregata, M. sanguinea y M. urbani. De acuerdo con los ejemplares de herbario estudiados y datos analizados, México es el país con mayor diversidad del género con 31 especies, de las cuales 14 son endémicas. Mirabilis glabrifolia, M. jalapa y M. viscosa tienen la mayor distribución, mientras que M. calophlebia, M. hintoniorum, M. nesomii y M. urbani son las más restringidas. La mayoría de las especies se encuentra en matorral xerófilo y bosque tropical caducifolio; en cuanto a provincias biogeográficas, se encuentran principalmente en el Altiplano Norte (Chihuahuense), Altiplano Sur y Costa del Pacífico. M. melanotrichia es la especie que se encuentra a mayor altitud.
{"title":"El género Mirabilis (Nyctaginaceae) en México: diversidad, distribución y tratamiento taxonómico","authors":"Patricia Hernández-Ledesma, Hilda Flores-Olvera","doi":"10.22201/ib.20078706e.2023.94.5014","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.5014","url":null,"abstract":"Entre las Nyctaginaceae, Mirabilis se caracteriza por tener inflorescencias cimosas e involucros de 5 brácteas connadas y acrescentes en fruto, subyacentes a 1-3 flores. Con 55-57 especies, es uno de los géneros más diversos dentro de la familia. El objetivo de este trabajo fue analizar la diversidad de Mirabilis en México, presentar el tratamiento taxonómico de las especies, una clave de identificación, datos de hábitat, fenología y mapas de distribución. Se presenta la sinonimia, se designa el lectotipo para Mirabilis aggregata, M. sanguinea y M. urbani. De acuerdo con los ejemplares de herbario estudiados y datos analizados, México es el país con mayor diversidad del género con 31 especies, de las cuales 14 son endémicas. Mirabilis glabrifolia, M. jalapa y M. viscosa tienen la mayor distribución, mientras que M. calophlebia, M. hintoniorum, M. nesomii y M. urbani son las más restringidas. La mayoría de las especies se encuentra en matorral xerófilo y bosque tropical caducifolio; en cuanto a provincias biogeográficas, se encuentran principalmente en el Altiplano Norte (Chihuahuense), Altiplano Sur y Costa del Pacífico. M. melanotrichia es la especie que se encuentra a mayor altitud.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47378433","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}
Pub Date : 2023-03-31DOI: 10.22201/ib.20078706e.2023.94.4985
Mayra Flores-Tolentino, J. Ramírez-Rodríguez, Jonas Morales-Linares, G. Ibarra-Manriquez, Ó. Dorado, J. L. Villaseñor
Las regiones biogeográficas están definidas por especies endémicas o características, así como por rasgos fisiográficos particulares. La delimitación geográfica y florística de la provincia Depresión del Balsas (México) y sus biomas se llevó a cabo a partir del uso de capas cartográficas (subcuencas y elevación) y de registros de herbario de las plantas vasculares presentes en la región. La Depresión del Balsas tiene una extensión de 115,007 km2. El bosque tropical estacionalmente seco constituye el bioma con mayor superficie (74,548 km2) y se registra desde el nivel del mar hasta los 1,627 m. Utilizando a las plantas vasculares como objeto de estudio, la circunscripción de los biomas con base en un análisis biogeográfico reveló la existencia de 10 grupos florísticos (fitocorias), los biomas más relevantes fueron los bosques tropicales estacionalmente secos y los bosques templados. Esta delimitación y regionalización, tanto fisiográfica como florística, permitió proponer una estrategia metodológica que puede ser de utilidad para definir límites geográficos en otras áreas de interés.
生物地理区域是由特有物种或特征以及特定的自然地理特征来定义的。本研究的目的是确定墨西哥巴塔哥尼亚省(deb del Balsas)及其生物群落的地理和植物区系划分，并利用制图层(次盆地和海拔)和该地区维管植物的植物标本室记录。巴尔萨斯洼地面积为115007平方公里。季节性干燥热带森林是面积最大的生物群落(74,548平方公里)，记录从海平面到1627米。本研究以维管植物为研究对象，通过生物地理分析确定了10个区系(植物科)，其中最相关的是季节性干燥热带森林和温带森林。这种地理和植物区系的划分和区域化使我们能够提出一种方法策略，这可能有助于确定其他感兴趣领域的地理边界。
{"title":"Delimitación geográfica y florística de la provincia fisiográfica de la Depresión del Balsas, México, con énfasis en el bosque tropical estacionalmente seco","authors":"Mayra Flores-Tolentino, J. Ramírez-Rodríguez, Jonas Morales-Linares, G. Ibarra-Manriquez, Ó. Dorado, J. L. Villaseñor","doi":"10.22201/ib.20078706e.2023.94.4985","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.4985","url":null,"abstract":"Las regiones biogeográficas están definidas por especies endémicas o características, así como por rasgos fisiográficos particulares. La delimitación geográfica y florística de la provincia Depresión del Balsas (México) y sus biomas se llevó a cabo a partir del uso de capas cartográficas (subcuencas y elevación) y de registros de herbario de las plantas vasculares presentes en la región. La Depresión del Balsas tiene una extensión de 115,007 km2. El bosque tropical estacionalmente seco constituye el bioma con mayor superficie (74,548 km2) y se registra desde el nivel del mar hasta los 1,627 m. Utilizando a las plantas vasculares como objeto de estudio, la circunscripción de los biomas con base en un análisis biogeográfico reveló la existencia de 10 grupos florísticos (fitocorias), los biomas más relevantes fueron los bosques tropicales estacionalmente secos y los bosques templados. Esta delimitación y regionalización, tanto fisiográfica como florística, permitió proponer una estrategia metodológica que puede ser de utilidad para definir límites geográficos en otras áreas de interés.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45218078","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}
Pub Date : 2023-03-31DOI: 10.22201/ib.20078706e.2023.94.5088
Se reportan nuevos registros de Aristolochia stomachoides, Macropeplus ligustrinus, Mollinedia heteranthera, M. lamprophylla, M. puberula, Odontadenia gracilipes, Pseuderanthemum congestum, Ruellia subsessilis y Senecio madagascariensis, presentes en el bosque Atlántico de Brasil, ampliando el conocimiento de su distribución geográfica. Se brindan comentarios sobre la taxonomía, su relación con especies afines, así como hábitat, imágenes y estado de conservación.
{"title":"Registros nuevos y comentarios taxonómicos en Acanthaceae, Apocynaceae, Aristolochiaceae, Asteraceae y Monimiaceae para el bosque tropical Atlántico de Brasil","authors":"","doi":"10.22201/ib.20078706e.2023.94.5088","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.5088","url":null,"abstract":"Se reportan nuevos registros de Aristolochia stomachoides, Macropeplus ligustrinus, Mollinedia heteranthera, M. lamprophylla, M. puberula, Odontadenia gracilipes, Pseuderanthemum congestum, Ruellia subsessilis y Senecio madagascariensis, presentes en el bosque Atlántico de Brasil, ampliando el conocimiento de su distribución geográfica. Se brindan comentarios sobre la taxonomía, su relación con especies afines, así como hábitat, imágenes y estado de conservación.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43089772","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}
Pub Date : 2023-02-20DOI: 10.22201/ib.20078706e.2023.94.4862
Juan Roberto F. Vallarta-Zárate, Mario Vásquez-Ortiz, J. Payán-Alejo, R. I. Rojas-González
La langostilla Pleuroncodes planipes se distribuye en la costa oeste de la península de Baja California y el golfo de California. Se analizó el patrón de distribución de la fase pelágica de la langostilla en función de las variables ambientales durante 2 cruceros de investigación pesquera realizados durante la primavera-verano de 2019. En ambas investigaciones se capturó langostilla en 50 lances de pesca con una red de media agua. La biomasa de langostilla se estimó por el método de área de barrido. La temperatura y la concentración superficial de la clorofila-a fueron las variables ambientales con mayor influencia para explicar su patrón de distribución. Se analizó la distribución geográfica de las capturas a través de índices espaciales para encontrar patrones y agregaciones de alta densidad, destacando un posible centro de gravedad en el golfo Ulloa, el cual podría ser un posible sitio de crianza, desde donde la especie se distribuye hacia el norte del océano Pacífico mexicano.
{"title":"Patrones de distribución de la langostilla (Pleuroncodes planipes) en la costa occidental de la península de Baja California, México","authors":"Juan Roberto F. Vallarta-Zárate, Mario Vásquez-Ortiz, J. Payán-Alejo, R. I. Rojas-González","doi":"10.22201/ib.20078706e.2023.94.4862","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.4862","url":null,"abstract":"La langostilla Pleuroncodes planipes se distribuye en la costa oeste de la península de Baja California y el golfo de California. Se analizó el patrón de distribución de la fase pelágica de la langostilla en función de las variables ambientales durante 2 cruceros de investigación pesquera realizados durante la primavera-verano de 2019. En ambas investigaciones se capturó langostilla en 50 lances de pesca con una red de media agua. La biomasa de langostilla se estimó por el método de área de barrido. La temperatura y la concentración superficial de la clorofila-a fueron las variables ambientales con mayor influencia para explicar su patrón de distribución. Se analizó la distribución geográfica de las capturas a través de índices espaciales para encontrar patrones y agregaciones de alta densidad, destacando un posible centro de gravedad en el golfo Ulloa, el cual podría ser un posible sitio de crianza, desde donde la especie se distribuye hacia el norte del océano Pacífico mexicano.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42946109","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}
Pub Date : 2023-02-20DOI: 10.22201/ib.20078706e.2023.94.4974
Diana Alejandra Vela-Espinosa, S. Díaz-Ruiz, Andrés López-Pérez, Omar Valencia-Méndez
El Parque Nacional Huatulco (PNH) protege el último arrecife al sur del Pacífico mexicano, considerado como una piedra angular y reservorio genético de diversas especies marinas. La composición íctica del PNH se determinó mediante una revisión bibliográfica y censos visuales entre 2015 y 2019. Se registraron 196 especies, lo que representa un incremento de 46 especies respecto a estudios previamente conducidos en el PNH. La curva de acumulación de especies construida a partir de estimadores no paramétricos sugiere que esto representa 75% de la fauna esperada. En un contexto regional, el PNH posee una alta riqueza y diversidad taxonómica. La partición de la diversidad-β entre áreas naturales protegidas (ANP) mostró que el reemplazo de especies es mayor al anidamiento, lo que sugiere que hay un importante recambio íctico entre ANP. El PNH posee un ensamblaje íctico diferente en términos de riqueza y diversidad taxonómica comparada otras ANP, por lo cual se deben de procurar estrategias de mitigación de impactos antrópicos, conservación de áreas núcleo y de amortiguamiento en el ANP, vigilar las áreas de aprovechamiento y generar estrategias de difusión científica con la finalidad de preservar el pool genético.
{"title":"Composición, distintividad taxonómica y diversidad beta de la ictiofauna marina del Parque Nacional Huatulco","authors":"Diana Alejandra Vela-Espinosa, S. Díaz-Ruiz, Andrés López-Pérez, Omar Valencia-Méndez","doi":"10.22201/ib.20078706e.2023.94.4974","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.4974","url":null,"abstract":"El Parque Nacional Huatulco (PNH) protege el último arrecife al sur del Pacífico mexicano, considerado como una piedra angular y reservorio genético de diversas especies marinas. La composición íctica del PNH se determinó mediante una revisión bibliográfica y censos visuales entre 2015 y 2019. Se registraron 196 especies, lo que representa un incremento de 46 especies respecto a estudios previamente conducidos en el PNH. La curva de acumulación de especies construida a partir de estimadores no paramétricos sugiere que esto representa 75% de la fauna esperada. En un contexto regional, el PNH posee una alta riqueza y diversidad taxonómica. La partición de la diversidad-β entre áreas naturales protegidas (ANP) mostró que el reemplazo de especies es mayor al anidamiento, lo que sugiere que hay un importante recambio íctico entre ANP. El PNH posee un ensamblaje íctico diferente en términos de riqueza y diversidad taxonómica comparada otras ANP, por lo cual se deben de procurar estrategias de mitigación de impactos antrópicos, conservación de áreas núcleo y de amortiguamiento en el ANP, vigilar las áreas de aprovechamiento y generar estrategias de difusión científica con la finalidad de preservar el pool genético.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48976813","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}
Pub Date : 2023-02-17DOI: 10.22201/ib.20078706e.2023.94.4068
H. Siliceo-Cantero, J. Benítez‐Malvido, I. Suazo‐Ortuño
This study provides a descriptive panorama of the lizard communities on 3 islands and the mainland on the Pacific coast of Mexico, estimating the effect of insularity (ecological changes between lizards on the islands and on the mainland) on lizard populations. The panorama included the number of species, encounter frequency and age classes. The insularity effects were estimated by comparing these variables, as well as basking behavior, activity related to microclimate, and perch height among the islands and the mainland. Of 11 species recorded, 8 occurred on the islands; however, every insular community was composed of 3 to 5 species (4 are protected by Mexican law). The encounter frequency for all species ranged between 11 and 0.1 individuals per hour. Lizard communities were predominantly composed of adults. Only 2 lizard species, Aspidoscelis communis and A. lineattissima, were shared among all sites, showing no insularity effects on the encounter frequency nor basking behavior. There were signs of insularity, however, on age classes and a clear effect on perch height, suggesting niche expansion. The study contributes to the regional knowledge of lizard species, as well as to ecological theories such as niche expansion and density compensation.
{"title":"Lizard species on three islands off the Mexican Pacific Coast: effects of insularity","authors":"H. Siliceo-Cantero, J. Benítez‐Malvido, I. Suazo‐Ortuño","doi":"10.22201/ib.20078706e.2023.94.4068","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.4068","url":null,"abstract":"This study provides a descriptive panorama of the lizard communities on 3 islands and the mainland on the Pacific coast of Mexico, estimating the effect of insularity (ecological changes between lizards on the islands and on the mainland) on lizard populations. The panorama included the number of species, encounter frequency and age classes. The insularity effects were estimated by comparing these variables, as well as basking behavior, activity related to microclimate, and perch height among the islands and the mainland. Of 11 species recorded, 8 occurred on the islands; however, every insular community was composed of 3 to 5 species (4 are protected by Mexican law). The encounter frequency for all species ranged between 11 and 0.1 individuals per hour. Lizard communities were predominantly composed of adults. Only 2 lizard species, Aspidoscelis communis and A. lineattissima, were shared among all sites, showing no insularity effects on the encounter frequency nor basking behavior. There were signs of insularity, however, on age classes and a clear effect on perch height, suggesting niche expansion. The study contributes to the regional knowledge of lizard species, as well as to ecological theories such as niche expansion and density compensation.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43016349","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}
Pub Date : 2023-02-17DOI: 10.22201/ib.20078706e.2023.94.4979
L. L. Muñoz-Camacho, Eribel Bello-Cervantes, Elvira Romano-Grande, L. Trejo-Hernández
There is scarce information available about how peasants recognize Agave landraces. This study aims to identify the agave species and landraces used for “pulque” production and analyze their morphological variability in a Nahualt community, San Pedro Tlacuapan (SPT), Tlaxcala, Mexico. To this end, we used traditional knowledge and conventional statistical methods. Semi-structured interviews were administered; from these, the frequency of mentions, lexical marking, and perception about each landrace were evaluated. A total of 36 morphological vegetative characters were measured in the main landraces, and ordination analyses (PCA) were performed. SPT is home to 8 landraces of Agave americana and Agave salmiana subsp. salmiana. “Manso” was the most frequently mentioned landrace, and 5 qualitative characters used by local experts to identify landraces were observed. One morphological cluster was associated with each landrace analyzed, and the variables characterizing them are rosette size, leaf shape, number of leaves, and tooth shape. The information about agave diversity from local experts can be integrated into measurements of morphological diversity through conventional statistical methods.
{"title":"Diversity and traditional knowledge of pulque agave landraces in the community of San Pedro Tlalcuapan, Tlaxcala, Mexico","authors":"L. L. Muñoz-Camacho, Eribel Bello-Cervantes, Elvira Romano-Grande, L. Trejo-Hernández","doi":"10.22201/ib.20078706e.2023.94.4979","DOIUrl":"https://doi.org/10.22201/ib.20078706e.2023.94.4979","url":null,"abstract":"There is scarce information available about how peasants recognize Agave landraces. This study aims to identify the agave species and landraces used for “pulque” production and analyze their morphological variability in a Nahualt community, San Pedro Tlacuapan (SPT), Tlaxcala, Mexico. To this end, we used traditional knowledge and conventional statistical methods. Semi-structured interviews were administered; from these, the frequency of mentions, lexical marking, and perception about each landrace were evaluated. A total of 36 morphological vegetative characters were measured in the main landraces, and ordination analyses (PCA) were performed. SPT is home to 8 landraces of Agave americana and Agave salmiana subsp. salmiana. “Manso” was the most frequently mentioned landrace, and 5 qualitative characters used by local experts to identify landraces were observed. One morphological cluster was associated with each landrace analyzed, and the variables characterizing them are rosette size, leaf shape, number of leaves, and tooth shape. The information about agave diversity from local experts can be integrated into measurements of morphological diversity through conventional statistical methods.","PeriodicalId":49603,"journal":{"name":"Revista Mexicana de Biodiversidad","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43995949","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号