Abstract：
:The genus Helcogrammoides comprises three species of small, cryptic shorefishes, H. antarcticus, H. chilensis, and H. cunninghami. All three species inhabit shallow water along exposed rocky coasts. Specimens reported herein extend the known distributions of H. chilensis and H. cunninghami to the vicinity of Lima, Peru, approximately 1600 km north of their previously reported northernmost records in Chile. Helcogrammoides chilensis and H. cunninghami occur sympatrically over most of their ranges in Peru and Chile and are frequently taken together in the same field collections. Lectotypes are designated for H. chilensis and H. cunninghami. Diagnoses and an identification key are provided for the species.
journal_name
Rev Biol Tropjournal_title
Revista de biologia tropicalauthors
Williams JT,Springer VGsubject
Has Abstractpub_date
2001-07-01 00:00:00pages
117-23eissn
0034-7744issn
2215-2075journal_volume
49 Suppl 1pub_type
杂志文章abstract：:The sea urchin roe is among the highest valued seafood items in the world. Increasing demand has extended this fishery worldwide and cases of overfishing have been detected in some countries. On the eastern coast of Venezuela some species of sea urchin, such as Lytechinus variegatus, are consumed as food but studies t...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2000-12-01 00:00:00
abstract：:In spite of their economic importance, coral reef communities of the world are rapidly decreasing, and an adequate management planification is needed. The benthic and fish communities of Dos Mosquises Sur and Madrizqui at Los Roques National Park, and Caiman and Cayo Norte at Morrocoy National Park, in Venezuela were ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v58i1.20023
更新日期：2010-05-01 00:00:00
abstract：:Lichenized fungi or lichens are organisms that have been little studied in the tropics and which distribution is affected by microenvironmental factors and substrate characteristics. The present study aimed to identify phorophyte specificity and microenvironmental preferences of corticolous lichens in five phorophyte ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2012-06-01 00:00:00
abstract：:Fatty acids have been successfully used to trace the transfer of organic matter in coastal and estuarine food webs. To delineate these web connections, fatty acid profiles were analyzed in species of microbes (Azotobacter vinelandii, and Lactobacillus xylosus), prawns (Metapenaeus monoceros and Macrobrachium rosenberg...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v58i2.5230
更新日期：2010-06-01 00:00:00
abstract：:Parasites play a crucial role in the ecology of animals. They also appear to be important in mechanisms underlying sexual selection processes. In this article we study the prevalence, effect and potential role in sexual selection of the protozoon Trypanosoma evansi in capybaras, Hydrochoerus hydrochaeris. We collected...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v64i3.20110
更新日期：2017-03-01 00:00:00
abstract：:Philopotamidae is a large caddisfly family with 20 extant genera comprising about 1000 described species worldwide. Alterosa contains 22 described species distributed in South and Southeastern Brazil. Adults of the genus are very similar in general structure, but are remarkable for their wide variation in male genital...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v60i2.3915
更新日期：2012-06-01 00:00:00
abstract：:Panulirus gracilis is a high valuable lobster species with considerable captures along the tropical Pacific coast. In this study, I present some biological and fishery parameters described after a sample of 843 lobsters, landed in Playa Lagarto from November 2007 to October 2008. From landing records, a total of 74.9%...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2011-06-01 00:00:00
abstract：:Two types of inclusion bodies were consistently observed under light microscopy in bean (Phaseolus vulgaris) leaf tissue infected with Bean rugose mosaic virus (BRMV), a species of the genus Comovirus, family Comoviridae. One type consisted of vacuolated inclusions found mainly in the cytoplasm of epidermal cells. The...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2000-12-01 00:00:00
abstract：:The study of sexual reproductive behavior supported by ultrastructural evidence is important in rotifers to describe differences among potential cryptic species. In this research, the morphology of the rotifer Brachionus bidentatus is described at the ultrastructural level, using electronic microscopy, together with a...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2013-12-01 00:00:00
abstract：:The contributions published in Revista de Biología Tropical in the area of Biomedical Sciences are reviewed in terms of number of contributions and scope of research subjects. Biomedical Sciences, particularly Parasitology and Microbiology, constituted the predominant subject in the Revista during the first decade, re...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2002-09-01 00:00:00
abstract：:The euglossine bee Eulaema nigrita plays an important role for the pollination of native and economically important plants, such as the sweet passion-fruit Passiflora alata. E. nigrita uniquely collects the nectar from the flowers of P. alata, nevertheless, it needs to visit other plants to collect pollen, nectar and ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v60i4.2073
更新日期：2012-12-01 00:00:00
abstract：:There is increasing evidence that large-bodied primates play important roles as seed dispersers and in the maintenance of tree diversity in forest ecosystems. In this study we compared forest regeneration at two sites with differing primate abundances in the Ecuadorian Chocoan rainforest. We predicted: (1) significant...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v64i2.18415
更新日期：2016-06-01 00:00:00
abstract：:Dormirator maculatus (n=184) was collected in the Alvarado Lagoon, Mexico during a year period (Oct. 1993-1994). In the helminthologic review, the presence of Clinostomum complanatum (82.3%), Neoechinorhynchus golvani (76.1%), Spiroxys sp. (21.3 %), and Camallanus sp. (6.2%) was registered. Reduction of the hematocrit...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2004-06-01 00:00:00
abstract：:The Snout Otter Clam, Lutraria philippinarum is a regularly harvested bivalve species for food and also as a source of income in the Philippines. For sustainable supply of this resource in the wild, efficient and effective management strategies are needed, and the evaluation of its reproductive biology and fishery are...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v60i4.2182
更新日期：2012-12-01 00:00:00
abstract：:The vegetation of the sandy hills ("lomas") constitutes the main originality of the Peruvian and Chilean desert with a high number of endemics that shapes the vicarious associations. In this work, a phytosociological view of sandy environments of the Peruvian coastal desert is presented. According to the Braun-Blanque...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2011-06-01 00:00:00
abstract：:Rhizosphere microbial communities are important for phytoremediation, plant nutrition, health and metabolism. Many factors, including plant species, pH and nutritional factors influence rhizosphere micro- biology. In this study, we analysed the effects of different forms of nitrogen on the structures of rhizosphere ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v64i1.18138
更新日期：2016-03-01 00:00:00
abstract：:The octopus (Octopus maya) is one of the most important fish resources in the Mexican Gulf of Mexico with a mean annual yield of 9000 ton, and a reasonable number of jobs created; O. maya represents 80% of the total octopus catch, followed by Octopus vulgaris. There are two artisanal fleets based on Octopus maya and a...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
abstract：:155 specimens of mussels (Modiolus capax) were gathered during March 1993 in a subtidal bed, located in northern Ocotal, Guanacaste, Costa Rica. For each individual in the random sample, shell length, breadth and height were measured and total weight, shell weight empty and meat weight were controlled. Analysis of dat...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1995-04-01 00:00:00
abstract：:Structural hemoglobin variants are reviewed for Iberoamerica; specially in Latin America, they reflect racial composition and geographic origin. Latin American genetic composition is a function of ethnic composition in each country (mainly Africans and Spaniards, and the "indians" or native peoples). For this reason t...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1993-12-01 00:00:00
abstract：:In Central America, palm swamps are known collectively as yolillales. These wetlands are usually dominated by the raffia palm Raphia taedigera, but also by the royal palm Manicaria saccifera and -in lower extensions- by the American oil palm Elaeis oleifera. The yolillales tend to be poor in woody species and are char...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2013-09-01 00:00:00
abstract：:Punta Lara Natural Reserve shelters the relict of the Southernmost riparian forest in the world, where the flora is threatened by the anthropic expansion and by the introduction of exotic species. In this area the ferns and lycophytes grow in particular environments as marshland, grassland and marginal forest. The aim...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2011-09-01 00:00:00
abstract：:The spatial distribution of individuals is a fundamental property of most species and constitutes essential information for the development of restoration and conservation strategies, especially for endangered plant species. In this paper we describe the spatial distribution of different size classes of the endangered...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v61i3.11981
更新日期：2013-09-01 00:00:00
abstract：:A new genus and two species of Melolonthinae from Honduras and Nicaragua are described. A phylogenetic analysis, carried out using morphological characters, suggests that Catrachia is a strongly supported monophyletic group. Catrachia is therefore established as a new genus, constituted by two new species, Catrachia m...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v54i2.13910
更新日期：2006-06-01 00:00:00
abstract：:Daily emergence of mayflies in Neotropical rivers and their causes have been poorly studied. In temperate zones, this process is better known and attributed to several factors. In this work, we studied the daily emergence of subimagines of several Ephemeroptera genera in La Picón River of a Venezuelan Andean cloud for...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v64i1.17919
更新日期：2016-03-01 00:00:00
abstract：:The floristic composition and structure of a premontane moist forest remnant were studied in the El Rodeo Protected Zone, Central Valley of Costa Rica. Three one-hectare plots were established in the non-disturbed forest, and all trees with a diameter at breast height (dbh) of 10 cm or greater were marked, measured an...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2001-03-01 00:00:00
abstract：:Simplification of natural habitats leads to a modification of the community associated with a host plant. Pequi trees (Caryocar brasiliense) are common to find in central Brazil, especially in the middle of monocultures, such as soy, corn, pasturelands or Eucalyptus plantations. On this scenario we hypothesized that h...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v60i3.1758
更新日期：2012-09-01 00:00:00
abstract：:Thirteen representatives of Myxariaceae sensu Jülich: Heterochaetella brachyspora (Bourdot & Galzin) Luck-Allen, Myxarium atratum (Peck) Ginns & Lefebvre, M. granulum Hauersl., M. laccatum (Bourdot & Galzin) Reid, M. mesomorphum (Bourdot & Galzin) Haursl., M. mesonucleatum Kisim., Oberw. & L.D. Gómez nov. sp., M. subs...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2000-06-01 00:00:00
abstract：:The volume of secretion obtained from adult Zonocerus variegatus (Orthoptera: Pyrgomorphidae) was influenced by the type of food plants. Insects fed on leaves of cassava Manihot esculenta, bitter leaves Vernonia amygdalina, and a mixture of M. esculenta and Acalypha wilkesiana gave a good volume of secretion while Chr...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2001-06-01 00:00:00
abstract：:The queen conch Eustrombus gigas is an important fisheries resource in the Caribbean region. In Cuba Island the studies about this resource are very scarce and particularly in the Southeastern regions of the country. With the aim to get important fishery information about this gastropod, adult Queen Conch density and ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v61i2.11165
更新日期：2013-06-01 00:00:00
abstract：:Sechium edule (chayote) is a cucurbitaceus species. A fast transition from domestic crop to exportation product, made evident the lack of adequate information about the plant and the cultivation techniques. This work summarizes, reinterprets or describes comprehensively several aspects related to the taxonomy, origin,...
journal_title：Revista de biologia tropical
pub_type： 杂志文章,评审
doi：
更新日期：1989-06-01 00:00:00
