{"id":"RDUUNC_d8f706e421e1184adb06ed18402a07e0","dc:title":"Carbonate collapse and the Late Paleozoic Ice Age marine biodiversity crisis","dc:creator":"Powell, Matthew G.","dc:date":"2024","dc:description":["El set de datos contiente datos de la Paleobiology Database (paleobBD.org) cruzados con los datos de Macrostrat (macrostrat.org), datos crudos de Macrostrat y los scripts necesarios para reproducir el trabajo.","Carbonate collapse and the Late Paleozoic Ice Age marine biodiversity crisis","The Late Paleozoic ice age was characterized by persistently low diversity of marine invertebrates following a second-order mass extinction. Here, we use a data set of North American (paleotropical) fossil occurrences of brachiopod, bivalve, and coral genera from the Paleobiology Database combined with lithologic data from Macrostrat to demonstrate that low diversity was caused by the collapse of carbonate environments during the LPIA. After dividing the data by lithology, low diversity was evident only in carbonate environments, whereas diversity within siliciclastic environments actually increased during the LPIA, after a brief decline in the Serpukhovian (late Mississippian). Diversity patterns closely matched respective changes in the volume of carbonate and siliciclastic rocks. The contrasting patterns observed in the two environments suggest that habitat loss was a direct cause of changes in diversity, because other factors, such as temperature, would have affected genera in both environments. A causal relationship is also supported by the finding that diversity remained high in carbonate refugia (carbonate beds within majority-siliciclastic formations) until the Bashkirian, postdating the onset of icehouse conditions by ~8 m.y. Our results provide a unifying, mechanistic explanation for the distinctive characteristics of the biotic impact, including its disproportionate effect on the tropical marine invertebrate fauna, prolonged recovery from extinction, low macroevolutionary rates during the recovery interval, and regional differences in its expression.","La edad de hielo del Paleozoico (LPIA) tard\u00edo estuvo caracterizada por una persistente baja diversidad de invertebrados marinos despu\u00e9s de una extinci\u00f3n en masa de segundo orden. Aqu\u00ed, nosotros utilizamos un set de datos de occurrencia de g\u00e9neros f\u00f3siles de braqui\u00f3podos, bivalvos y corales de Norte Am\u00e9rica (paleotropical) proveniente de la Paleobiology Database combinado con datos litol\u00f3gicos de Macrostrat para demostrar que la baja diversidad fu\u00e9 causada por el colapso de los ambientes carbon\u00e1ticos durante la LPIA. Despu\u00e9s de dividir los datos por litolog\u00eda, la baja diversidad fu\u00e9 evidente \u00fanicamente en los ambientes carbon\u00e1ticos, mientras que la diversidad en ambientes silicocl\u00e1sticos de hecho se increment\u00f3 durante la LPIA, despu\u00e9s de un breve declive en el Serpukhoviano (Mississippiano tard\u00edo). Los patrones de diversidad se asocian muy cercanamente a los respectivos cambios en el volumen de las rocas carbon\u00e1ticas y silicocl\u00e1sticas. Los patrones de diversidad contrastantes observados entre los dos ambientes sugieren que la p\u00e9rdida de h\u00f1abitat foe la causa directa de los cambios en la diversidad, porque otros factores tales como la temperatura, deber\u00edan haber afectado a los g\u00e9neros en ambos ambientes por igual. Una relaci\u00f3n causal tambi\u00e9n se encuentra soportada por el hallazgo que la diversidad se mantuvo alta en refugios carbon\u00e1ticos (capas carbon\u00e1ticas dentro de formaciones mayormente silicocl\u00e1sticas) hasta el Bashkiriano, aproximadamente ~8 m.y. despu\u00e9s del inicio de las condiciones glaciares. Nuestros resultados proveen una explicaci\u00f3n mecan\u00edstica unificada para caracter\u00edsticas distintivas del impacto bi\u00f3tico, incluyendo su desproporcionado impacto en las faunas marinas tropicales, la prologada recuperaci\u00f3n de la extinci\u00f3n, las bajas tasa macroevolutivas durante el intervalo de recuperaci\u00f3n y las diferencias regionales en su expresi\u00f3n."],"dc:format":["application\/zip"],"dc:language":["spa"],"dc:type":"dataset","dc:subject":["Geolog\u00eda","Edad de hielo del Paleozoico","LPIA","Paleobiology Database","Macrostrat"],"dc:coverage":["USA","37\u00b005'24.9\"N ; 95\u00b042'46.4\"W"],"dc:rights":["info:eu-repo\/semantics\/openAccess"],"dc:relation":["https:\/\/doi.org\/10.1130\/G46858.1"],"dc:identifier":"https:\/\/repositoriosdigitales.mincyt.gob.ar\/vufind\/Record\/RDUUNC_d8f706e421e1184adb06ed18402a07e0"}