Abstract：
:Abstract: Attacks by big cats on livestock are one of the major causes of human-felid conflicts and, therefore, an important factor in the conservation of these species. It has been argued that a reduction in natural prey abundance promotes attacks on domestic species, but few studies have tested this statement, and some have delivered contradictory results. We investigated whether the occurrence of attacks to livestock by jaguar and puma relates to the abundance and richness of their natural prey. In the rainy season 2009, we tracked potential prey species counting signs of presence along linear transects in 14 non-attacked cattle farms (control) and in 14 attacked cattle farms in NW Costa Rica. There was a negative relationship between the occurrence of attacks and both species richness (p = 0.0014) and abundance (p = 0.0012) of natural prey. Our results support the establishment of actions to promote support and recovery of natural prey, in order to diminish attacks on livestock, while maintaining jaguar and puma populations.
journal_name
Rev Biol Tropjournal_title
Revista de biologia tropicalauthors
Burgas A,Amit R,Lopez BCdoi
10.15517/rbt.v62i4.13199subject
Has Abstractpub_date
2014-12-01 00:00:00pages
1459-67issue
4eissn
0034-7744issn
2215-2075journal_volume
62pub_type
杂志文章abstract：:Production and condition index of a turkeywing (Arca zebra) population were studied from August 1984 to August 1985 in Pariche, Cariaco Gulf, Venezuela. Production was studied through bimonthly collections using a method designed for populations with continuous reproduction and indistinguishable age classes. The popul...
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 analysis of integumental pore pattern has identified two intraspecific groups of postlarval shrimp Litopenaeus vannamei (Boone, 1931), a species of which three to five natural populations or groups are expected to be found from Mexico to Peru. Natural distribution and man-made redistributions have not been typifie...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v54i3.12555
更新日期：2006-09-01 00:00:00
abstract：:Bottom trawling has been considered a fishing activity that affects and modifies habitats, because of its impacts in species composition and abundance, and the alteration in the structure and function of the eco-system, that generates biodiversity loss. The Northern part of the Gulf of California has been considered a...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2015-09-01 00:00:00
abstract：:The nests used in this study were obtained from trap-nests (tubes of cardboard and cut bamboo stems) placed on Santa Carlota Farm (Itaoca Section-IS, Santana Section-SS and Cerrado-Ce), Cajuru, SP, Brazil. The number of nests and corresponding species obtained were as follows: 516 nests of T. curvitarsis, 104 of T. ru...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-03-01 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 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 information on ecological behavior of wild sloths is very scarce. In this study we determined the home ranges and resources used by three adult female three-toed sloths (Bradypus variegatus) and their four young in an agricultural matrix of cacao (Theobroma cacao), pasture, riparian forests and living fencerows in...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2011-12-01 00:00:00
abstract：:Breast cancer is first in incidence and mortality among Costa Rican women. In 2011 there is a projected 1 071 new cases. We selected 116 patients diagnosed with breast cancer and family history of breast cancer. A detailed family history and epidemiology data was obtained from each patient and a blood sample was proce...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2012-12-01 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 initial phase of a plant life cycle is a short and critical period, when individuals are more vulnerable to environmental factors. The morphological and anatomical study of seedlings and saplings leaf type enables the understanding of species strategies of fundamental importance in their establishment and survival...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v64i1.17923
更新日期：2016-03-01 00:00:00
abstract：:Arecaceae is a family rich in species and provides resources for the subsistence of human groups in the tropical regions. The aim of this work was to assess the richness, diversity, composition, and use patterns of the family Arecaceae in three communities of the Medio Atrato, Chocó, Colombia, in order to obtain usefu...
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 mangrove forest that fringes the Bon Accord Lagoon measures 0.8 km(2) and is dominated by red mangrove (Rhizophora mangle). This forest forms the landward boundary of the Buccoo Reef Marine Park in Southwest Tobago, and is part of a mangrove-seagrass-coral reef continuum. Biomass and productivity, as indicated by ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
abstract：:Paternal behavior and testosterone plasma levels in the Volcano Mouse Neotomodon alstoni (Rodentia: Muridae). Although initially it was thought that testosterone inhibited the display of paternal behavior in males of rodents, it has been shown that in some species high testosterone levels are needed for exhibition of ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v57i1-2.11360
更新日期：2009-03-01 00:00:00
abstract：:The spatial and temporal abundance of epiphytic dinoflagellates associated with ciguatera was studied over two annual cycles (March 1999 to March 2000 and March 2001 to March 2002) in the northwestern coast of Cuba. From 14 species of macroalgae (Phaeophyta, Chlorophyta, and Rhodophyta), 1340 samples were obtained ide...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v54i2.13870
更新日期：2006-06-01 00:00:00
abstract：:Several factors control the decomposition in terrestrial ecosystems such as humidity, temperature, quality of litter and microbial activity. We investigated the effects of rainfall and soil plowing prior to the establishment of Acacia mangium plantations, using the litterbag technique, during a six month period, in fo...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2011-03-01 00:00:00
abstract：:The existence of monodominant forests on well-drained soils in tropical regions has been widely reported. Such forests most likely result from a combination of both ecological and evolutionary factors. Under conditions of high seed and seedling mortality, vegetative reproduction could create a reproductive advantage l...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v62i2.11639
更新日期：2014-06-01 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：:Maintaining regional competitiveness and economic viability for Port Bustamante - Kingston Harbour, Jamaica, required improved accessibility to "Post Panamax" (too large to pass through the Panama Canal) container vessels. Removal of the northern portion of the shallow coral reef at Rackham's Cay, which was partially ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
abstract：:Rice fields occupy large areas in Northeastern Argentina, and in Corrientes this widespead activity has become a feature in the landscape, as it is one of the main producing provinces. The aquatic Coleoptera is part of the fauna inhabiting these artificial environments but little is known about this group in irrigated...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2015-09-01 00:00:00
abstract：:We analyzed the diet and feeding habits of the fishes Heterandria bimaculata and Poecilia sphenops. Specimens were captured monthly in "Los Carros" damp, Morelos, Mexico (18 degrees 37' N, 98 degrees 43' W). We quantified gut content by the numerical method and by the frequency of occurrence method; and used the MacAr...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2007-06-01 00:00:00
abstract：:A sample of 15 Costa Rican scientific papers published since 1985 reported only 49% of the necessary information about laboratory animals and experimental conditions, slightly better than in the rest of Latin America (47%, sample = 15 papers) but lower than in the USA and Europe (60%, sample = 15). Adequate informatio...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1997-09-01 00:00:00
abstract：:We examined the protoplasmic assimilation of columnar cacti pollen grains in two species of Venezuelan desert glosophagine bats, Glossophaga longirostris and Leptonycteris curasoae, by determining the amount of empty (digested) pollen grains found in their fecal samples. To determine the amount of empty pollen grains,...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2005-03-01 00:00:00
abstract：:Population structure and environmental relationships of the tropical tree Nectandra rudis (Lauraceae), a rare species in western Mexico. The tree N. rudis is a rare species from western Mexico of which community and population features are unknown. We studied a population in an altitudinal gradient, from 550-1,850 m a...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2008-03-01 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：:Jaguars (Panthera onca) are the largest predator in lowland forests of Amazonia but there have been few studies on their occurrence and activity in such forests. Here, we used camera traps to document the occurrence and activity of jaguars within a local area (-650ha) of lowland forest of Eastern Ecuador, over two sam...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v62i2.11115
更新日期：2014-06-01 00:00:00
abstract：:Long-term, high accuracy seawater temperature data sets are essential in studies assessing environmental changes that may alter coral reef communities. Located at the approximately the same latitude, the subsurface seawater temperature (S3T) off Discovery Bay, Jamaica (DBJ) and the U.S. Virgin Islands (USVI) had the s...
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 land crab Gecarcinus quadratus is an engineering species that controls nutrient cycling in tropical forests. Factors regulating their coastal distribution are not fully understood. We quantified land crab distribution during the dry season at Sirena Field Station in Corcovado National Park, Costa Rica, and found t...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：10.15517/rbt.v55i1.6073
更新日期：2007-03-01 00:00:00
abstract：:We registered seedling survival and biomass increase for Rhizophora mangle L., Avicennia germinans L. and Laguncularia racemosa (L.) Gaertn. f, main mangrove species in the Rancheria River delta, Colombia. Only seedlings of R. mangle were found to survive. We also measured maximum rate of litterfall. We estimated annu...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2007-03-01 00:00:00
abstract：:The host plants of Cerambycidae (Coleoptera) in the Province of Espinal (Chaquenian Dominion) and the province of Buenos Aires are mainly exotics, cultivated or naturalized, the last ones growing spontaneously and forming little forests. Forty two species of Cerambycidae are reported using these plants and other nativ...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：1997-03-01 00:00:00
abstract：:Sponges have an important ecological role in coral reef ecosystems. However, when compared to other benthic Phyla, it has been little researched. This research was focused in the variability of the community structure of sponges in three locations at Morrocoy National Park (Cayo Sombrero, Playa Mero and Punta Brava) e...
journal_title：Revista de biologia tropical
pub_type： 杂志文章
doi：
更新日期：2013-09-01 00:00:00
