43 research outputs found
NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics
Incluye contenido parcial de los autoresAbstract.Mammalian carnivores are considered a key group in maintaining ecologicalhealth and can indicate potential ecological integrity in landscapes where they occur. Carni-vores also hold high conservation value and their habitat requirements can guide managementand conservation plans. The order Carnivora has 84 species from 8 families in the Neotropicalregion: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; andUrsidae. Herein, we include published and unpublished data on native terrestrial Neotropicalcarnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTRO-PICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data wereobtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organi-zations, and private consultants. Data were collected using several methods including cameratrapping, museum collections, roadkill, line transect, and opportunistic records. Literature(peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated inthis compilation. Most of the data set consists of detection data entries (n=79,343; 79.7%) butalso 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 tomacroecological, ecological, and conservation questions in multiple spatio-temporal perspec-tives. As carnivores play key roles in trophic interactions, a better understanding of their distri-bution and habitat requirements are essential to establish conservation management plans andsafeguard the future ecological health of Neotropical ecosystems. Our data paper, combinedwith other large-scale data sets, has great potential to clarify species distribution and relatedecological processes within the Neotropics. There are no copyright restrictions and no restric-tion for using data from this data paper, as long as the data paper is cited as the source of theinformation used. We also request that users inform us of how they intend to use the data
Induction of symmetrical nucleus division and multi-nucleate structures in microspores of eggplant (Solanum melongena L.) cultured in vitro
Past and present land use influences on tropical riparian zones: an isotopic assessment with implications for riparian forest width determination
Extent, intensity and drivers of mammal defaunation:a continental-scale analysis across the Neotropics
Neotropical mammal diversity is currently threatened by several chronic human-induced pressures. We compiled 1,029 contemporary mammal assemblages surveyed across the Neotropics to quantify the continental-scale extent and intensity of defaunation and understand their determinants based on environmental covariates. We calculated a local defaunation index for all assemblagesâadjusted by a false-absence ratioâwhich was examined using structural equation models. We propose a hunting index based on socioenvironmental co-variables that either intensify or inhibit hunting, which we used as an additional predictor of defaunation. Mammal defaunation intensity across the Neotropics on average erased 56.5% of the local source fauna, with ungulates comprising the most ubiquitous losses. The extent of defaunation is widespread, but more incipient in hitherto relatively intact major biomes that are rapidly succumbing to encroaching deforestation frontiers. Assemblage-wide mammal body mass distribution was greatly reduced from a historical 95th-percentile of ~ 14Â kg to only ~ 4Â kg in modern assemblages. Defaunation and depletion of large-bodied species were primarily driven by hunting pressure and remaining habitat area. Our findings can inform guidelines to design transnational conservation policies to safeguard native vertebrates, and ensure that the âempty ecosystemâ syndrome will be deterred from reaching much of the New World tropics
AtchitIV gene expression is stimulated under abiotic stresses and is spatially and temporally regulated during embryo development
NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics
Xenarthrans â anteaters, sloths, and armadillos â have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with 24 domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, ten anteaters, and six sloths. Our dataset includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data-paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the south of the USA, Mexico, and Caribbean countries at the northern portion of the Neotropics, to its austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n=5,941), and Cyclopes sp. has the fewest (n=240). The armadillo species with the most data is Dasypus novemcinctus (n=11,588), and the least recorded for Calyptophractus retusus (n=33). With regards to sloth species, Bradypus variegatus has the most records (n=962), and Bradypus pygmaeus has the fewest (n=12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other datasets of Neotropical Series which will become available very soon (i.e. Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans dataset
Somatic embryogenesis and plant regeneration from callus cultures of Cleome rosea Vahl
Isotopic values, body mass, age class, and sex of capybara (Hydrochoerus hydrochaeris) populations in Brazil
This dataset is part of the article titled 'Plasticity in resource use explains the persistence of the largest living rodent in anthropized environments' available at https://doi.org/10.1111/jzo.13057 and includes uncorrected and correct stable carbon and nitrogen isotope values, individuals body mass, age class, and sex from capybara (Hydrochoerys hydrochaeris) populations in Brazil
Isotopic values, body mass, age class, and sex of capybara (Hydrochoerus hydrochaeris) populations in Brazil
This dataset is part of the article titled 'Plasticity in resource use explains the persistence of the largest living rodent in anthropized environments' available at https://doi.org/10.1111/jzo.13057 and includes uncorrected and correct stable carbon and nitrogen isotope values, individuals body mass, age class, and sex from capybara (Hydrochoerys hydrochaeris) populations in Brazil.THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV
Datasets of medium- and large-sized mammal assemblages and the diet composition of the mammal species in the Atlantic Forest, Brazil
These datasets are part of the article entitled 'Land-use changes lead to functional loss of terrestrial mammals in a Neotropical rainforest' available at https://doi.org/10.1016/j.pecon.2021.02.006.Assemblage datasetTable S1. Assemblages dataset. Assemblages of medium- and large-sized mammals of the Atlantic Forest, Brazil, used for analysis, including the selected studies, geographic coordinates, biogeographic regions, number of forest remnants in each study, the patch size extracted from the studies, and the patch size calculated in buffers of 2 km radius of each area (in ha), sampling methods and species richness. All studies that compose this dataset are properly cited in this table.Table S2. Species composition of 96 assemblages of medium- and large-sized mammals of the Atlantic Forest, Brazil. All studies that compose this dataset are properly cited in this table.Diet datasetTable S3. Diet dataset. Contribution of the 83 species of medium- and large-sized mammals of the Atlantic Forest, Brazil, for each ecological function, including the number of studies used to characterize each function per species, mean values and standard deviations for each ecological function, species mean body mass (in kg; extracted from Paglia et al., 2012) and the classification of species as sensitive or resilient to habitat loss based on threat categories according to the Brazilian (MMA/ICMBio, 2018) and IUCN (2020) red lists. All studies that compose this dataset are properly cited in this table.Citation: Magioli, M, Ferraz, KMPMB, Chiarello, AG, Galetti, M, Setz, EZF, Paglia, AP, Abrego, N, Ribeiro, MC, Ovaskainen, O. 2021. Land-use changes lead to functional loss of terrestrial mammals in a Neotropical rainforest. Perspectives in Ecology and Conservation. (https://doi.org/10.1016/j.pecon.2021.02.006)THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV