Abstract：
:The local effects induced as a consequence of applications of four external secretions from the spider Sphaerobothria hoffmanni were recorded. Macroscopic lesions were not found; the only local effect microscopically observed was a weak necrosis in the skeletal muscle in mice.
journal_name
Rev Biol Tropjournal_title
Revista de biologia tropicalauthors
Herrero MVsubject
Has Abstractpub_date
1984-11-01 00:00:00pages
209-12issue
2eissn
0034-7744issn
2215-2075journal_volume
32pub_type
杂志文章abstract：:The fish and invertebrates community structure in the Sabancuy estuary was analyzed in two seasons and 14 sampling stations (13 along the estuary and one in the marine adjacent coast). No significant differences were found between seasons. The environmental frame defines two zones within the estuary, the first extends...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2001-03-01 00:00:00
abstract：:During October and November 1998 (rainy season), and December, February and March 1999 (dry season), larvae distribution of Petrolisthes armatus and associated decapods were sampled in three different sites at the Punta Morales peninsula, Gulf of Nicoya, Costa Rica. A total of 6014 decapod larvae were collected, and 7...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2008-09-01 00:00:00
abstract：:Egg clutches of the centrolenid Hyalinobatrachium pulveratum were sampled in four lowland locations of Costa Rica. The ontogenesis of the tadpoles of this species is documented by periodical descriptions of the larval stages. Larvae of H. pulveratum change their shape during development because of the non-equal growth...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v52i1.14912
更新日期：2004-03-01 00:00:00
abstract：:We summarize information concerning Recent and Pleistocene-Holocene Uruguayan sand dollars (Mellitidae), as well as Miocene taxa (Monophorasteridae). Recent and Pleistocene-Holocene species (Encope emarginata, Mellita quinquiesperforata, and Leodia sexisperforata) are at their southernmost limits of distribution, with...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-12-01 00:00:00
abstract：:The effect of different lecithin sources and presentations on growth, food conversion ratio and survival of P. vannamei (290 mg +/- 0.02) was studied. The bioassay was designed in order to compare different dietary levels and different quality of lecithin. Squid lecithin, crude soybean (7%), deoiled soybean lecithin (...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2003-09-01 00:00:00
abstract：:The leishmaniasis is a complex disease system, caused by the protozoan parasite Leishmania and transmitted to humans by the vector Lutzomyia spp. Since it is listed as a neglected disease according to the World Health Organization, the aim of this study was to determine the current and future niche of cutaneous and vi...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
abstract：:Starch gel electrophoresis was used to analyze the allelic variability of four polymorphic loci (Lap-2, Lap-3, Pgm and Gpi) from a single population of Artemia franciscana (Kellogg, 1906) from the Great Salt Lake (Utah, USA), cultured under eight different experimental conditions. The organisms were cultured to the ad...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2002-03-01 00:00:00
abstract：:Some species of marine fish have complex relationships with coastal ecosystems during their reproductive periods, as the needle fish Tylosurus pacificus that forms spawning aggregations in gravel beaches in Utría Park. We described fishery and some aspects of the reproductive biology of T. pacificus and proposed some ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2017-03-01 00:00:00
abstract：:The advancing agricultural frontier has led to an important loss of natural habitats, with significant consequences for biodiversity. The demography for two species of anurans, Physalaemus biligonigerus and Rhinella arenarum, both associated with agricultural systems in the central region of the C6rdoba Province, were...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2013-09-01 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：:The genus Histioneis (=Parahistioneis) contains an excessive number of poorly described species, often based on the observation of a single specimen and ignoring the intraspecific variability. In order to investigate the validity of the species and to suggest synonyms, the original illustrations of all known species o...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v55i2.6025
更新日期：2007-06-01 00:00:00
abstract：:In recent years, the use of new scientific techniques has effectively improved aquaculture production processes. Astaxanthin has various properties in aquaculture and its antioxidant benefits have been closely related to stress resistance; besides, it is an essential factor for growth in many crustaceans and fish. The...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v62i4.13057
更新日期：2014-12-01 00:00:00
abstract：:Actually, the germplasm of Jatropha spp. is conserved as whole plants in field collections. Under this storage method, the genetic resources are exposed to disease, pest and natural hazards such as human error, drought and weather damage. Besides, field genebanks are costly to maintain and with important requirements ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v60i1.2782
更新日期：2012-03-01 00:00:00
abstract：:Huperzia brevifolia is one of the dominant species of the genus Huperzia living in paramos and superparamos from the Colombian Andes. A detailed study of the sporangium's ontogeny and sporogenesis was carried out using specimens collected at 4200m above sea level, in Parque Natural Nacional El Cocuy, Colombia. Small p...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2009-12-01 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：:The aqueous extract and the essential oil of Satureja viminea (Lamiaceae) were tested. General physiologic effects were assessed through the Hippocratic screening test. Non fasted female Sprague Dawley rats were utilized and 250, 500, 750 and 1000 mg/kg doses were used. Two animals were used for each dosage level and ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2003-03-01 00:00:00
abstract：:Size and fecundity observations of pea crab (Juxtafabia muliniarum) from the paleal cavity of the oyster Saccostrea palmula were made from May 1998 to May 1999. Infestation frequency was 18.52% in a sample of 540 oysters. Of 136 pea crabs, 36% were couples, 60% were single females and 4% were single males. The mean ca...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2001-09-01 00:00:00
abstract：:The food habits of Trachinotus paitensis, in San Ignacio Lagoon B.C.S., Mexico, were investigated. We observed that T. paitensis is carnivorous, feeding mainly on benthic invertebrates (the gastropods Anachis spp., Bittium spp., and the crustacean larvae). We concluded that T. paitensis is an opportunist predator that...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v52i1.14762
更新日期：2004-03-01 00:00:00
abstract：:This paper is the first taxonomic account of the hydroid orders Anthoathecatae and Leptothecatae from the Caribbean and Pacific coast of Costa Rica. All specimens are currently stored at the reference collection of the Museo de Zoología, Escuela de Biología, Universidad de Costa Rica. Sixteen hydroid species are recor...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2002-06-01 00:00:00
abstract：:A conductivity staining method for tissue samples were developed using a solution of 10 ml of 5% carbolic acid solution, 2 g of tannic acid, and 10 ml of saturated aluminium sulfate 12-hydrated after fixation with osmium. Specimens of kidney (mouse) with the above treatment can be analyzed under a scanning electron mi...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1994-08-01 00:00:00
abstract：:The fertility life table of Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) preying either on Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) caterpillars or on alternative prey Tenebrio molitor L. (Coleoptera: Tenebrionidae) under greenhouse conditions (30 +/- 5 degrees C, 61 +/- 23% RH) were studied. The...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2002-03-01 00:00:00
abstract：:Seed dispersal is a fundamental process in plant ecology and is of critical importance for the restoration of tropical communities. The lands of the Cabo Rojo National Wildlife Refuge (CRNWR), formerly under agriculture, were abandoned in the 1970s and colonized mainly by non-native tree species of degraded pastures. ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2014-09-01 00:00:00
abstract：:Cattleya trianae is an endemic species from the tropical rainforest in the Colombian Andes. Its survival is currently threatened due to habitat loss and commercial overexploitation. This study evaluates ten substrates, some organic (pine bark, coconut fiber and wood shavings), some inert icopor (polystyrene foam), veg...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v55i2.6045
更新日期：2007-06-01 00:00:00
abstract：:Puerulus settlement of the western Atlantic spiny lobster, Panulirus argus, was monitored using modified Witham collectors from December 1996 to March 1998 at seven sites around St. Thomas, U.S. Virgin Islands. A total of 605 pueruli were collected from 553 samples for a catch per unit effort (CPUE) for all sites of 1...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2003-06-01 00:00:00
abstract：:The diversity, composition and structure of vegetation in a cattle landscape in Matiguás, Nicaragua was characterized, and the floristic and structural differences of six types of habitats (secondary forests, riparian forests, charrales, live fences and pastures with high and low tree cover) were compared. A total of ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-09-01 00:00:00
abstract：:Isolation of a field strain of Babesia bigemina (Piroplasma: Babesiidae) and establishment of in vitro culture for antigen production. Bovine b abesiosis, caused by Babesia bigemina, is a barrier for livestock development; it results in high economic loss to Mexican livestock. Control requires adequate antigens for di...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2007-03-01 00:00:00
abstract：:Critical evaluation of terminology use in ecology is important to avoid using jargon that helps little to facilitate communication. Here we reply to Monge-Najera’s comment on the use of the terms ensemble and assemblage, we argue for the use of the words ensamble and ensamblaje in Spanish. In addition, both terms have...
journal_title：Revista de biologia tropical
pub_type： 评论,信件
doi：
更新日期：2016-06-01 00:00:00
abstract：:A great extension (615,000 ha) of native savannas of the eastern plains of Venezuela have been replaced by plantations of Pinus caribaea var. hondurensis; however, only scarce information exists about the impact of this land use on carbon dynamics in soils. We studied the effect of temporal variability and the substit...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2008-12-01 00:00:00
abstract：:The composition of demersal fish along the western coast of the State of Baja California Sur, Mexico, including the limit of the northern distribution of the ichthyofauna of the eastern tropical Pacific, is presented. The survey was carried out on four oceanographic cruises between autumn 2004 and March 2006. Of 220 s...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2008-12-01 00:00:00
abstract：:Fishing activity in two artificial reefs (ARs) was monitored between August 2001 and August 2002 in the gulf of Morrosquillo, to investigate their possible impact on the fishery dynamics. We determined catch per unit effort (CPUE) and catch composition, and found 19 species in Punta de Piedra and 36 in Tolú (16 specie...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2009-12-01 00:00:00
