نتایج جستجو برای: caves

تعداد نتایج: 2604  

Journal: :Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 2016
Guilherme Maerschner Ogawa Antonio Marques Pereira Júnior Fábio Resadore Ricardo de Godoi Mattos Ferreira Jansen Fernandes Medeiros Luis Marcelo Aranha Camargo

This study had the aim of ascertaining the sandfly fauna and possible presence of Leishmania in these insects, collected in caves in the state of Rondônia, Brazil. Collections were conducted in eight caves located in two different areas of this state. Leishmania in the sandflies collected was detected using the polymerase chain reaction (PCR). This was the first study on sandflies from caves in...

2017
Cássia Oliveira Lauren Gunderman Cathryn A. Coles Jason Lochmann Megan Parks Ethan Ballard Galina Glazko Yasir Rahmatallah Alan J. Tackett David J. Thomas

The microbial diversity within cave ecosystems is largely unknown. Ozark caves maintain a year-round stable temperature (12-14 °C), but most parts of the caves experience complete darkness. The lack of sunlight and geological isolation from surface-energy inputs generate nutrient-poor conditions that may limit species diversity in such environments. Although microorganisms play a crucial role i...

Journal: :Zootaxa 2013
Luiz Felipe Moretti Iniesta Rodrigo Lopes Ferreira

Pseudonannolene spelaea n. sp. is the first strictly cave-dwelling species described for the family Pseudonannolenidae. It is found in iron ore caves in the Brazilian Amazon. The family Pseudonannolenidae is exclusively Neotropical and frequently found in caves of Brazil, from which 20 species are known. The new species is compared with its congeners and with related cave-dwelling species. The ...

2011
Holley Moyes

Cave studies have traditionally relied heavily on ethnographic or ethnohistoric analogy to understand the sacred context ofM~soamericancaves. What is little understood are the behavioral processes that produced the artifact assembla?es In c~ves and the nature ofthe relationship between caves and their ancient users residing in surrounding surface sztes. Thzs study demonstrates that caves can pr...

2017
Andrew R. Farrant Tony Harrison

The UK has a wide variety of hypogenic caves, including transverse maze caves, relict hydrothermal caves, gypsum mazes and hypogenic karst associated with water rising up deep thrust faults. While few of these are particularly extensive, they offer insights into the mechanisms of speleogenesis and mineralisation. The best developed hypogenic caves in the UK are in the Carboniferous limestones o...

Journal: :Geomicrobiology journal 2014
Jennifer J Marshall Hathaway Robert L Sinsabaugh Maria De Lurdes N E Dapkevicius Diana E Northup

Lava caves are an understudied ecosystem in the subterranean world, particularly in regard to nitrogen cycling. The diversity of ammonia oxidation (amoA) and nitrogen fixation (nifH) genes in bacterial mats collected from lava cave walls on the island of Terceira (Azores, Portugal) was investigated using denaturing gradient gel electrophoresis (DGGE). A total of 55 samples were collected from 1...

Journal: :Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] 2018
Muhammad Yasir

In this study for the first-time microbial communities in the caves located in the mountain range of Hindu Kush were evaluated. The samples were analyzed using culture-independent (16S rRNA gene amplicon sequencing) and culture-dependent methods. The amplicon sequencing results revealed a broad taxonomic diversity, including 21 phyla and 20 candidate phyla. Proteobacteria were dominant in both ...

Journal: :Science 1887

Journal: :Science 1905

2011
Pekka Vilkamaa Heikki Hippa Steven J. Taylor

Camptochaeta prolixasp. n. (Diptera, Sciaridae) is described from caves in Nevada, and three other congeneric species are recorded from caves in Nevada and Arkansas, United States. The new species shows some indication to a subterranean mode of life, including long antenna and legs, and in some specimens, reduction of the eye bridge.

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