Ludivina Barrientos-Lozano

Tecnológico Nacional de México-Instituto Tecnológico de Cd. Victoria

Bush-crickets have dual-input, tympanal ears located in the tibia of their forelegs. The sound will first of all reach the external sides of the tympana, before arriving at the internal sides through the bush-cricket's ear canal, the acoustic trachea (AT), with a phase lapse and pressure gain. It has been shown that for many bush-crickets, the AT h...

Some Orthoptera species have been studied for their large amounts of phenolic compounds and bioactive potential. This work focused on Pterophylla beltrani Bolvar & Bolvar as a source of compounds with bioactive potential. Concentrated ethanolic extract of P. beltrani was evaluated for antioxidant effects, protective potential of proteins against fr...

Pterophylla beltrani Bolvar and Bolvar is an insect rich in various metabolites, with nutritional and nutraceutical potential. In this work a possible use of the ethanolic extract of this insect as a coating on strawberries is presented, which avoid fungal growth on fruit surfaces, compared with 60% of control strawberries where fungi developed. Th...

El género Conocephalus Thunberg, 1815 (Orthoptera: Conocephalinae) está representado por más de 151 especies distribuidas en todo el mundo. Para México se reportan seis especies: Conocephalus (Anisoptera) magdalenae, C. (A.) cinereus, C. (A.) ictus, C. (A.) strictus, C. (A.) resinus y C. (Aphauropus) leptopterus. La presencia de especies crípticas...

The Central American locust (CAL), Schistocerca piceifrons piceifrons (Walker, 1870), is a transboundary pest that is distributed from Mexico to Panama. It is a true locust species characterized by density-dependent phase polyphenism. The ancient record of the CAL is found in the Popol Vuh, the Mayan sacred book, demonstrating how it has affected h...

Abstract. Understanding how microclimate and vegetation are associated during secondary succession is of primary importance for plant conservation in the face of the increasing land cover modification. However, these patterns are still unstudied for many plant communities. This study aimed to evaluate the structure (species richness, Shannon's dive...

Nesoecia Scudder, 1893 is a neotropical genus of true katydids (Pseudophyllinae) comprising four species: N. brasiliensis (Bruner, 1915) from Brazil (Bahia), N. cooksonii (Butler, 1877) from Ecuador (Galápagos, Floreana Island), and two species from southern Mexico: N. insignis (Hebard, 1932) from Yucatán (Temax and Chichen-Itza), and N. nigrispina...

Two new species of the genus Caloxiphus Saussure & Pictet, 1898 (Pseudophyllinae) are described: C. chapulhuacan n. sp., and C. cuicani n. sp., both endemic to the Huasteca Region, State of Hidalgo, Mexico. These two new taxa show morphological affinities to C. championi Saussure & Pictet, 1898. However, they may be separated from the latter specie...

En los ortópteros de la superfamilia Tettigonioidea las señales acústicas son de especial interés, ya que juegan un papel importante en el apareamiento y están involucradas en el reconocimiento intraespecífico macho-hembra. La señal acústica de llamado permite al macho atraer individuos del sexo opuesto a corta o larga distancia. En este trabajo se...

Introducción: El grupo de géneros Dichopetala se propuso recientemente después de una revisión del género Dichopetala Brunner von Wattenwyl, 1878. Actualmente, el grupo consta de ocho géneros y 44 especies distribuidas desde el sur de los Estados Unidos hasta el sur de México. Este acuerdo genérico, se basó únicamente en evidencia morfológica y se...

En este estudio se describe el número de cromosomas diploides (2n), niveles de ploidía y su contenido de ADN por citometría de flujo (CF) en tres poblaciones de Nopalea cochenillifera ubicadas en Tamaulipas, México. El contenido de ADN 2C del parénquima del cladodio fue de 4.1 pg en la población de Ciudad Victoria (CV), para la población de Villagr...

The Central American locust, Schistocerca piceifrons piceifrons (Walker) is a major agricultural pest in Mexico and Central America. Control measures against this pest have generated much environmental damage and substantial financial costs because chemical insecticides are used. Yet various Orthoptera species also appear to be a potential source o...

Species modify their morphological attributes in response to environmental variation as an adaptive strategy, a situation aggravated by current conditions of rapid alteration of global ecosystems. Altitudinal gradients represent an ideal source of environmental variation to evaluate such adaptations. Along these gradients, generalist species are th...

Species modify their morphological attributes in response to environmental variation as an adaptive strategy, a situation aggravated by current conditions of rapid alteration of global ecosystems. Altitudinal gradients repre- sent an ideal source of environmental variation to evaluate such adaptations. Along these gradients, generalist species are...

Disturbance caused by loss of vegetal cover modifies interactions between abiotic environment and species, including phytophagous insects such as leaf beetles (Chrysomelidae: Coleoptera). Furthermore, secondary succession changes both resource availability and microclimatic conditions after disturbance, thus influencing species niche requirements....

Leaf beetles (Chrysomelidae: Coleoptera) constitute a highly diverse family of phytophagous insects with high ecological relevance, due to their host plant specificity and their close association to vegetation variables. Therefore, secondary succession and seasonal changes after loss of vegetal cover will have a significant influence on their commu...

Global increase in land cover change and deforestation bring about fragmentation of a high proportion of native vegetation areas. Microclimate is among the first modified factors after vegetation loss, effects of such disturbances are critical for species performance. However, both secondary succession and seasonality provoke further modifications...

Se reportan cuatro subfamilias, 17 géneros y 22 especies de Tettigoniidae; de éstos, 11 son nuevos registros para el Estado de Hidalgo. El índice de Shannon mostró que el área de estudio presenta una diversidad elevada y uniforme: Bosque de Encino (BE) H´=2.78, Selva Media (SM) H´=2.23 y Bosque Mesófilo de Montaña (BMM) H´=2.13. La subfamilia Phane...

Se describe Microcentrum tecactli n. sp., Barrientos-Lozano, Fernández-Azuara & Rocha-Sánchez 2018, de ejemplares recolectados en la huasteca hidalguense en México. M. tecactli n. sp., presenta afinidades con Microcentrum rhombifolium (Saussure, 1859). No obstante, difiere de ésta en caracteres morfológicos y acústicos. Los machos producen dos tipo...

ABSTRACT. Four subfamilies, 17 genera and 22 species of Tettigoniidae are reported; of these, 11 are new records for the state of Hidalgo. The Shannon index showed that the study area presents a high and uniform diversity: Oak Forest (BE) H'= 2.78, Rain Forest (SM) H'= 2.23 and Mountain Cloud Forest (BMM) H'= 2.13. The subfamily Phaneropterinae sho...

La investigación se realizó en dos ejidos, Alta Cima y San José, Reserva de la Biosfera El Cielo, de diciembre 2012 a marzo 2016. Objetivos: a) determinar riqueza de plantas útiles; b) calcular nivel de preferencia de los pobladores respecto a las mismas; y c) determinar prioridades de conservación y aprovechamiento sustentable mediante valoración...

The research was carried out in two ejidos, Alta Cima and San José, El Cielo Biosphere Reserve, from December 2012 to March 2016. Objectives: a) to determine the wealth of useful plants; b) to calculate the level of preference of inhabitants regarding these; and c) to define priorities for conservation and sustainable exploitation through socioecon...

La temperatura del aire es el factor que más se relaciona con el crecimiento y desarrollo vegetal. Son pocas las investigaciones reportadas para el cultivo de nopal verdura en el norte de México que abordan el modelado de los grados día con la producción de biomasa en condiciones hidropónicas. Los objetivos de este estudio fueron: i) modelar la pro...

Un nuevo caracol terrestre, Guillarmodia (Guillarmodia) marcelae n. sp. Correa-Sandoval, Barrientos -Lozano & Strenth es descrita para las montañas de la Sierra Los Soldados, región del estado de Tamaulipas en el noreste de México. Esta nueva especie difiere de otras especies regionales de Guillarmodia por su tamaño pequeño y distintivas estriacion...

We analyzed Anastrepha ludens (Loew) (Diptera: Tephritidae) populations for 2 years (2008–2009) over the most important area of citrus-growing in Tamaulipas, Mexico. This study aimed to characterize the spatial heterogeneity of A. ludens populations between areas with and without the release of sterile flies. The analyses include high populations o...

Loss of vegetation cover is a major factor that endangers biodiversity. Therefore, the use of geographic information systems and the analysis of satellite images are important for monitoring these changes in Natural Protected Areas (NPAs). In northeastern Mexico, the Natural Protected Area Altas Cumbres (NPAAC) represents a relevant floristic and f...

This research aimed to determine richness on ethnobotanical knowledge possessed by inhabitants of two local communities. For this, 30% of the inhabitants of both localities (66 people in total) were randomly interviewed, and two participatory community workshops (one per locality) were performed. We identified 156 useful taxa corresponding to 62 bo...

Los miembros de la familia Chrysomelidae son fitófagos, por lo que la presencia de las plantas hospederas es uno de los muchos factores que determinan la composición de especies. Sin embargo, el índice o valor de asociación que presentan los crisomélidos con las comunidades vegetales que se modifican en un gradiente de elevación, no ha sido cuantif...

La diversidad y biogeografía de los moluscos terrestres mexicanos es pobremente conocida. Entre octubre de 1988 y noviembre de 2005 fueron estudiados los gastrópodos terrestres de la Sierra de Tamaulipas, obteniéndose 482 muestras de 30 localidades en diferentes tipos de vegetación. Se registraron 31 géneros y 46 especies pertenecientes a 18 famili...

Taeniopoda is a genus of grasshoppers currently represented by 12 species distributed from southern USA to Panama, with most of them occurring along the transitional Nearctic–Neotropical region in central and southern Mexico. Despite being a small group of conspicuous, colourful species, the systematics of Taeniopoda has been largely neglected, inc...

Diversity and biogeography of Mexican terrestrial gastropods is poorly known. The terrestrial mollusks of the Sierra of Tamaulipas were surveyed from October 1988 to November 2005. A total of 482 samples were obtained from 30 localities, characterized with different vegetation types. Thirty-one genera and 46 species belonging to 18 families are rec...

A new land snail, Guillarmodia (Guillarmodia) marcelae n. sp., Correa-Sandoval, Barrientos-Lozano & Strenth is described from the mountains of Sierra Los Soldados state of Tamaulipas in northeastern Mexico. This new species differs from other regional species of Guillarmodia by its smaller size and distinctive subsutural striations. Habitat informa...

The present contribution describes five new species of Phaneropterinae from Northeastern Mexico: Obolopteryx eurycerca n. sp., Barrientos-Lozano & Rocha-Sanchez, O. nigra n. sp., Barrientos-Lozano & Rocha-Sanchez, O. tamaholipana n. sp., Barrientos-Lozano & Rocha-Sanchez, O. huastecana n. sp., Barrientos-Lozano & Rocha-Sanchez, and O. tanchipae n....

The study of biodiversity of Chrysomelidae in Mexico and its variation within ecological gradients has increased recently, although important areas in the country remain to be explored. We conducted a faunistic inventory and analyzed the elevational and temporal variation of leaf beetle communities in the Sierra de San Carlos, in the state of Tamau...

La Langosta Centroamericana (Schistocerca piceifrons piceifrons) es una de las plagas más importantes en México y CentromAmérica. Es un insecto polífago que causa grandes daños económicosma cultivos agrícolas. Presenta dos fases extremas: solitaria y gregaria. Aquí se documenta la variación cromática y morfométrica de poblaciones de la Langosta Cen...

Los patrones de distribución de Chrysomelidae en base al clima fueron evaluados en el Cañón de la Peregrina, municipio de Victoria, Tamaulipas. Se utilizaron capas climáticas históricas, cuyos valores fueron correlacionados con la abundancia de crisomélidos registrados de 2009 a 2010 en el área de estudio. Se encontró una influencia significativa d...

La investigación se realizó en los ejidos Alta Cima y San José, Tamaulipas de diciembre 2012 a marzo 2014. El objetivo de la investigación fue determinar la riqueza de conocimiento etnobotánico de los habitantes locales por rangos de edad y por género. Se realizaron entrevistas al azar al 30% de los hogares; entrevistas a informantes de calidad y d...

Abstract Obolopteryx truncoangulata n. sp., Barrientos-Lozano & Rocha-Sánchez, and a field collected conspecific gynandromorph are described, both from the northern Mexico’s Highland. O. truncoangulata n. sp., may be separated from congeneric O. brevihastata based on morphological characters. The male’s pronotum is more constricted mesally, and th...

Obolopteryx truncoangulata n. sp., Barrientos-Lozano & Rocha-Sánchez, and a field collected conspecific gynandro-morph are described, both from the northern Mexico's Highland. O. truncoangulata n. sp., may be separated from conge-neric O. brevihastata based on morphological characters. The male's pronotum is more constricted mesally, and the tegmin...

An analysis of adult population fluctuation of Anastrepha ludens (Loew) was performed in southern Tamaulipas, Mexico from 2008 to 2011. The aim was to analyze population dynamics of A. ludens and its relationships with climatic factors in the citrus region of Llera, Tamaulipas, Mexico. Population densities were weekly examined to identify variation...

The Central American Locust (Schistocerca piceifrons piceifrons) is one of the most important pests in México and Central America. It is a polyphagous insect that causes great economic damage to agricultural crops. It exhibits two extreme phases: solitarious and gregarious. Here we document chromatic and morphometric variation of the Central Americ...

Four new Species of the genus Pterodichopetala from Northeastern México are described: P. monternach n. sp., P. tuliensis n. sp., P. geovanyi n. sp., and P. robertoi n. sp. Information on distribution and ecology is provided.

The Central American Locust (Schistocerca piceifrons piceifrons) is one of the most important pests in México and Central America. It is a polyphagous insect that causes great economic damage to agricultural crops. It exhibits two extreme phases: solitarious and gregarious. Here we document chromatic and morphometric variation of the Central Americ...

The Mexican fruit fly Anastrepha ludens (Loew) is a pest of great impact on citrus in Tamaulipas. Attacks host of commercial importance such as oranges, grapefruit and tangerines, restricting their business mobility to national or international markets. In this study from population fluctuation during the years 2008-2011 of A. ludens in Santa Engra...

RESUMEN. En Orthoptera las señales acústicas son especie-específicas y por tanto, un carácter útil para delimitar especies crípticas. Aquí presentamos señales acústicas de llamado de dos poblaciones alopátricas de Conocephalus (Xiphidion) ictus (Scudder, 1875). Una población de Gómez Farías, Tamaulipas, Reserva de la Biosfera (RB) El Cielo y otra d...

RESUMEN. En el presente estudio se analizó la influencia de diferentes variables ambientales sobre la abundancia de Cryptocephalinae en la Sierra de San Carlos, Tamaulipas. Durante el periodo febrero de 2013-enero de 2014 se realizaron 1,008 muestreos y se registraron 828 ejemplares que representan 27 especies y 10 géneros. Se encontró asociación s...

RESUMEN. En Orthoptera las señales acústicas son especie-específicas y por tanto, un carácter útil para delimitar especies crípticas. Aquí presentamos señales acústicas de llamado de dos poblaciones alopátricas de Conocephalus (Xiphidion) ictus (Scudder, 1875). Una población de Gómez Farías, Tamaulipas, Reserva de la Biosfera (RB) El Cielo y otra d...

Large citrus areas in Tamaulipas are affected by Anastrepha ludens (Loew) populations. Here we report the findings of a spatio-temporal analysis of A. ludens on an extended citrus area from 2008–2011 aimed at analyzing the probabilities of A. ludens infestation and developing an infestation risk classification for citrus production. A Geographic In...

Resumen La mosca mexicana de la fruta Anastrepha ludens (Loew), es una de las plagas de mayor impacto en la citricultura en Tamaulipas. Ataca hospederos de importancia comercial como la naranja, toronja y mandarinas restringiendo su movilidad comercial a mercados nacionales o internacionales. En este estudio a partir de la fluctuación poblacional d...

Air temperature is the most related factor to plant growth and development. There are few investigations reported for growing cactus in northern Mexico that address modeling degree days with biomass production under hydroponic conditions. The objectives of this study were: i) production modeling of cactus pear related to fresh (PF) and dry (PS) bio...

RESUMEN. Se presenta un estudio preliminar de los ortópteros presentes en el Cerro de Ixcatlán, Huejutla de Reyes Hidalgo, México; primer aporte al conocimiento de este grupo de insectos en el estado. Se reportan 53 especies, 20 corresponden a Ensifera y 33 a Caelifera. Para el suborden Ensifera-Tettigonioidea-Tettigoniidae, están representadas cua...

The function of nuptial gifts has generated long standing debate. Nuptial gifts consumed during ejaculate transfer may allow males to transfer more ejaculate than is optimal for females. However, gifts may simultaneously represent male investment in offspring. Evolutionary loss of nuptial gifts can help elucidate pressures driving their evolution....

RESUMEN: Schistocerca daminifica es común en el noreste de México. Aunque se reconoce la presencia e infestaciones moderadas de S. damnifica en la zona agrícola del sur del Estado, no se cuenta con información básica sobre esta especie. Este trabajo tuvo como objetivo estudiar aspectos bio-ecológicos de la langosta S. damnifica bajo condiciones sem...

RESUMEN: La langosta centroamericana (Schistocerca piceifrons piceifrons) presenta dos fases extremas: solitaria y gregaria. Se documenta la variación cromática de poblaciones de S. p. piceifrons en el sur de Tamaulipas, México. El análisis estadístico de correspondencia demostró la asociación de la densidad de población con el cromatismo de las ni...

Useful plants are an important factor for the sustainable production of tropical forest conservation. The status of these plants can be evaluated initially through the local traditional knowledge. The aim of this work was to contribute to the development of an inventory of useful plants by socioeconomic and ecological assessment and determine prior...

A total of 67 species and 23 genera of Crabronidae (Hymenoptera) are recorded from 339 specimens collected in 2.3 ha of a spiny shrub located in "Cañón del Novillo" in Victoria, Tamaulipas, México. The high species richness and diversity index found for this group are comparable with the ones obtained for other hymenopteran taxa from the same local...