Works in South America
Published research works with metadata for South America (Continent).
1618 works
Showing 851 to 900 of 1618 works
Rapid survey of bats (Chiroptera) in the Atlantic Forest in eastern Sergipe, Brazil: unexpected diversity in a fragment…
Despite advances in recent decades, the Atlantic Forest of northeastern Brazil is still one of the least studied regions of the country, regarding, for instance, the bat fauna. Th…
Geographic distribution and conservation of seasonal killifishes (Cyprinodontiformes, Rivulidae) from the Mid-Northeast…
The Rivulidae fish family, which includes Neotropical seasonal killifishes, is one of the most diverse taxonomic groups in the aquatic systems of Caatinga in Brazil. Cynolebias an…
Mammals of Paso Centurión, an area with relicts of Atlantic Forest in Uruguay
Paso Centurión is one of the most diverse areas of Uruguay. It is legally protected at local and national level, however, there are different interests competing for its land use …
Community of diurnal birds of prey in an urban area in southeastern Brazil
As urban areas expand, some species of diurnal birds of prey occupy these habitats, and many establish viable populations. The objectives of this study were to: (1) survey the spe…
Diet and foraging behavior of Ageneiosus inermis (Teleostei, Auchenipteridae)
Ageneiosus inermis is the largest species of the family Auchenipteridae (Siluriformes) and has a primarily piscivorous diet, although no comprehensive data are available on the ha…
New records of Clytoctantes alixii (Elliot, 1870) in Eastern Caldas, Colombia
Clytoctantes alixii is a bird that lives on the edges of old-growth, secondary and cleared forests undergoing regeneration and presents a distribution restricted to Colombia and V…
Potential impact of mammal defaunation on the early regeneration of a large-seeded palm in the Brazilian Atlantic Forest
Defaunation, the decline in animal species and populations, is biased towards large-bodied animals that have unique roles as dispersers of large seeds. However, it is speculated t…
Use of microhabitat and activity patterns of two lizard species from a seasonal dry forest in northern Colombia
In this work, the microhabitat use and activity patterns of two lizard species with sympatric distribution were evaluated in a dry forest fragment within the department of Sucre, …
Vertical stratification of phyllostomid bats assemblage (Chiroptera, Phyllostomidae) in a forest fragment in Brazilian …
Bats represent a key group in tropical forest dynamics, given their participation in ecological interactions that lead the regulation of these forests. They are also sensitive to …
Phytosociology of the shrub-arboreal stratum of the Ibura National Forest, Northeastern Brazil: are 35 years sufficient…
Among the various applications of phytosociology, the evaluation of natural regeneration is of great importance, mainly because it provides insights for ecological restoration. Th…
Serras e pantanais arenosos: solos e geoambientes em unidade de conservação da Amazônia, Brasil
Unidades de conservação representam a principal estratégia para a preservação e recuperação de recursos naturais brasileiros. Para nortear o seu planejamento e gestão, informações…
Novos registros de Sphaenorhynchus canga (Amphibia, Anura, Hylidae) no Quadrilátero Ferrífero em Minas Gerais, Sudeste …
A perereca Sphaenorhynchus canga foi recentemente descrita, com distribuição geográfica restrita, na borda leste do Quadrilátero Ferrífero em Minas Gerais. A espécie foi originalm…
Rediscovery of the enigmatic forest racer snake, Dendrophidion boshelli Dunn, 1944 (Serpentes, Colubridae): actions for…
Dendrophidion boshelli is a poorly known and endemic snake species from the Middle Magdalena river valley in Colombia. It was described in 1944 based on a single specimen from the…
Presence of the collared peccary Pecari tajacu (Artiodactyla, Tayassuidae) in the far northeast of its Brazilian distri…
The collared peccary Pecari tajacu (Artiodactyla, Tayassuidae) is widely distributed and included in the Least Concern (LC) category by the IUCN assessment. However, threats such …
Estimation of the species richness of hyperdiverse beetles (Coleoptera: Cerambycidae) in an area of Atlantic Forest, Mi…
Species are elementary units in community ecology studies. However, sample limitations obstruct the elaboration of accurate faunistic inventories, especially in biodiversity hotsp…
First report of Rhabdochona acuminata (Nematoda, Rhabdochonidae) in Astyanax aff. fasciatus (Characiformes, Characidae)…
Specimens of Rhabdochona (Rhabdochona) acuminata (Molin, 1860) were collected in Astyanax aff. fasciatus (Cuvier, 1819) from Lake Guaíba, municipalities of Guaíba (30°08.28'S, 51°…
Padrões espaciais da vegetação lenhosa associados ao processo de expansão da Floresta com Araucaria sobre Campos excluí…
O processo de expansão florestal tem sido observado em regiões de mosaicos de campo-floresta no Sul do Brasil, especialmente em campos excluídos de fogo e pastejo. Outros fatores …
Ferruginous Rupestrian Savannah: a floristic and structural analysis of these rare environments
The flora of the Rupestrian Savannah (Cerrado Rupestre) is composed of widely distributed species and endemic species from high altitude rocky outcrops. The aim of this study was …
Alimentação de Auchenipterichthys punctatus (Siluriformes, Auchenipteridae) em lagos do rio Cuiuni, Amazonas, Brasil
Auchenipterichthys punctatus é uma espécie de peixe muito abundante durante o período de águas baixas no rio Cuiuni, sendo objetivo deste estudo investigar a alimentação de A. pun…
Food habits and endozoochorous seed dispersal by small rodents (Cricetidae and Echimyidae) in a riparian forest in sout…
We analyzed the feeding habits and the endozoochoric seed dispersal of six species of Neotropical small rodents in a riparian forest in the Cerrado biome at the central portion of…
Records of melanistic Tamandua tetradactyla (Pilosa, Myrmecophagidae) from Ecuador
In Ecuador, the presence of melanistic individuals of Southern Tamandua Tamandua tetradactyla Linnaeus (1758) has been recognized but there has not been a formal report written ab…
An inconvenient routine: introduction, establishment and spread of new non-native fishes in the Paraíba do Sul River ba…
This study updates the introduction of non-native fishes Nannostomus beckfordi, Aphyocharax anisitsi, Knodus moenkhausii, Moenkhausia costae, Ancistrus multispinis and Astronotus …
Sobrevivência e crescimento de espécies nativas do Cerrado após semeadura direta na recuperação de pastagem abandonada
Considerando que estudos sobre a sobrevivência e o crescimento das espécies nativas via semeadura direta nas savanas brasileiras ainda são escassos, este trabalho acrescenta infor…
Analysis of duet vocalizations in Myiothlypis leucoblephara (Aves, Parulidae)
Bird vocalizations might be used for specific recognition, territorial defense, and reproduction. Bioacoustic studies aim to understand the production, propagation and reception o…
Invasion alert: new record of the exotic Gambusia holbrooki Girard, 1859 in the Puna Austral region, Northwestern of Ar…
We report the first record of Gambusia holbrooki Girard, 1859 at elevations above 1,615 m in the Puna Austral, Provincia Catamarca, Argentina. This fish was introduced by intentio…
Effects of weed management on soil mites in coffee plantations in a Neotropical environment
Environmental disturbance, as a result of land use change and/or different agricultural practices, may have negative impacts on the richness and abundance of edaphic mites. The ob…
Importancia para la conservación de las aves de un relicto de bosque en la región fitogeográfica del Espinal, Argentina
La región fitogeográfica del Espinal en Argentina está críticamente amenazada, ya que gran parte de su territorio históricamente cubierto por bosque fue convertido a cultivos. Con…
Malformation in three anuran species from a preserved remnant of Atlantic Forest in southeastern Brazil
Records of malformation in amphibians have significantly increased on a global scale. The main causes of malformations are linked to environmental contaminants, and records in pre…
Mammals of medium and large size in Cerrado remnants in southeastern Brazil
The Cerrado is the second largest biome in Brazil and considered a global biodiversity hotspot due to its high species richness, elevated amount of endemisms, and several anthropo…
Soil microbial community composition in two distinct preserved habitats
This study investigates the taxonomic composition, richness and diversity of microbial and metazoan communities in two adjacent ecosystems — a preserved Native Forest and a Highla…
An efficient iDNA method for surveying rainforest mammals with carrion flies
Metabarcoding of vertebrate DNA derived from invertebrates (iDNA) is a promising method for monitoring of mammal assemblages. However, optimization of field and laboratory methods…
Metagenomic exploration of endosymbionts and pathogens in the tropical lineage of Rhipicephalus sanguineus sensu lato …
Rhipicephalus sanguineus sensu lato (s.l.), commonly known as the domestic dog tick, is a globally distributed tick. This species plays a significant role in human and animal heal…
DNA metabarcoding of Neotropical ichthyoplankton: Enabling high accuracy with lower cost
Knowledge of ichthyoplankton dynamics is extremely important for conservation management as it can provide information about preferential spawning sites, reproductive period, migr…
An annotated type catalogue and a fully digitised Crustacea collection of the Museum of Nature Hamburg, Zoology. Part I…
In this contribution, we present the first annotated catalogue of type material deposited at the Crustacea collection of the Museum of Nature Hamburg, Leibniz Institute for the An…
Ubristes mirabilissimus sp. nov., a new stingless bee mimicking hoverfly from the Ecuadorian Amazon (Diptera, Syrphidae…
A new species of Ubristes Walker, 1852, U. mirabilissimus sp. nov., is described from the Napo Province in the Amazonian part of Ecuador. A key is given to distinguish this specie…
Integrative taxonomy unveils a new lineage within Acanthogonatus centralis Goloboff, 1995 (Araneae, Mygalomorphae, Pycn…
A new species of Pycnothelidae Chamberlin, 1917 from the Pampean mountain ranges, Córdoba, Argentina is described and illustrated: Acanthogonatus monicae sp. nov. Here, we combine…
Over the top: Three new species of terrestrial breeding frogs (Anura, Terrarana, Pristimantis) from the highlands of th…
We describe three new species of Pristimantis frogs from northwestern Peru on the basis of morphological and genetic differences. Pristimantis chinguelas sp. nov. is similar in ap…
A new species of Hoplias malabaricus species complex (Characiformes, Erythrinidae) from Northeastern Brazil
A new species of Hoplias malabaricus species complex is herein described from the Munim River Basin, Maranhão state, Northeastern of Brazil. Hoplias cazumba differs from its conge…
A new species and the phylogenetic placement of the Neotropical genus Gephyrellula Strand, 1932 (Araneae, Philodromidae)
Gephyrellula Strand, 1932 is a genus of small flat pale spiders from the running crab spider family Philodromidae, which currently includes the type-species Gephyrellula violacea …
An annotated catalog of Annelida types at the Museum of Nature Hamburg, Zoology. Part I: Annelida: Errantia: Aciculata:…
We present Part I of an annotated catalog of types in the Annelida collection of the Museum of Nature Hamburg, Leibniz Institute for the Analysis of Biodiversity Change. Part I in…
Systematics of the Dendropsophus leucophyllatus species group (Anura, Hylidae) from the Chocó region of Ecuador, with d…
The Dendropsophus leucophyllatus group is composed by 19 species distributed from Central America to the Atlantic Forest of Brazil. Only one species is known from the Chocó region…
Reidentification of a 19th century specimen reveals the first record of Amphisbaena hogei Vanzolini, 1950 (Squamata, Am…
For almost 60 years, a specimen of Amphisbaena collected in the 19th century by the Danish zoologist Johannes Theodor Reinhardt in southeastern Brazil has been identified as Amphi…
A new species of Harmonicon F. O. Pickard-Cambridge, 1896, from central-west Brazil and redescription of H. rufescens F…
A new species of Harmonicon F. O. Pickard-Cambridge, 1896, is described from the Cerrado biome in Central-West Brazil, representing the first non-Amazonian and the southernmost re…
Top mountain areas of subtropical southern Brazil sheltering four new small-ranged catfishes (Siluriformes, Trichomycte…
Mountainous regions typically host a great diversity of small-ranged species, often contributing for delineating world biodiversity hotspots. Species of trichomycterine catfishes …
Further contributions to the taxonomy of Armillipora Quate (Diptera, Psychodidae) with the description of two additiona…
The genus Armillipora Quate is recorded for the first time in Brazil and Venezuela, based on the description of Armillipora bifida sp. nov. Additionally, a second new species, Arm…
Description of Phelene reinschmidti from Ecuador with notes on the subfamily Lophotettiginae (Orthoptera, Tetrigidae)
Lophotettiginae Hancock, 1909, endemic to the Neotropics, is one of the most ill-known subfamilies of Tetrigidae. Until now, there have not been any hypothesis on its relatio…
Phylogenetic diversity of the Pristimantis anaiae species group, with a description of a new species of Pristimantis (A…
Continuous field work on mountains in the upper Pastaza watershed, showed an unexpected cryptic diversity in the recently described Pristimantis anaiae species group. Based on mol…
Systematic revision of the Eyelash Palm-Pitviper Bothriechis schlegelii (Serpentes, Viperidae), with the description of…
We present a taxonomic review and systematic revision of the Eyelash Palm-Pitviper Bothriechis schlegelii (Berthold, 1846) based on examination of 400 museum specimens, a phylogeo…
Two new species of the spider genus Loxosceles (Araneae, Sicariidae) from the Ecuadorian Andes
Two new species of the spider genus Loxosceles (Araneae: Sicariidae) from the Ecuadorian Andes are described: Loxosceles guayllabamba sp. nov. (male, female) and Loxosceles binfor…
A new species of Ninia (Serpentes, Colubridae) from western Ecuador and revalidation of N. schmidti
We describe a new species of Ninia Baird & Girard, 1853 endemic to the cloud forests of northwestern Ecuador. The new species has previously been confused with N. atrata (Hallowel…