Estudio preliminar de la arácnofauna en la ribera del río Chinguiñoso, Huejutla de Reyes, Hidalgo, México

Las  arañas  comprenden  un  grupo  de  fauna  muy diverso  y ampliamente  distribuido  en  todos  los ecosistemas terrestres invadiendo incluso algunos ambientes dulceacuícolas. Se realizó un estudio sobre la arácnofauna en la ribera del río Chinguiñoso, Huejutla de Reyes, Hidalgo; México. Durante los meses de septiembre a noviembre del 2017. Se utilizó el método de colecta directa, trampas de caída y golpeo de ramas y arbustos, en un trayecto de dos kilómetros, distribuidos en cinco sitios cada uno con 200 metros de longitud, obteniendo 240 horas de esfuerzo de muestreo en jornadas diurnas. Se obtuvieron un total 190 individuos, distribuidos en 13 especies y siete familias (Araneidae, Oxyopidae, Pisauridae, Salticidae, Sytodidae, Sparissidae y Tetragnathidae). Se tomó como medida de la diversidad verdadera (especies efectivas) la exponencial del índice de equidad de Shannon (H’); a su vez dominancia de Simpson (D’), como un indicador para medir la diversidad. El mes de septiembre fue el más abundante, rico y diverso. Por otra parte, el análisis de similitud de Jaccard arroja un grupo que presenta un 80 % de similitud y otro en donde presenta especies que no se encontraron en los demás sitios. La riqueza y diversidad de arácnidos podría estar aunada a la riqueza de vegetación, debido a que aún existen zonas con gran altura y cobertura arbórea

NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data