Acta zoológica mexicana

http://www.scielo.org.mx/scielo.php?script=sci_issues&pid=0065-1737&lng=pt&nrm=iso

List of Papers (Total 85)

Effect of nectar-foraging ants and wasps on the reproductive fitness of Turnera ulmifolia (Turneraceae) in a coastal sand dune in Mexico

We evaluated over two years the effect of different ant species on the reproductive fitness (estimated as end-of-season fruit set per treatment) of Turnera ulmifolia. Research was done on a sand dune matorral located on the coast of Veracruz, México. The results show that (i) plants associated with the larger ant species (Camponotus abdominalis) produced more fruits than plants...

La colección de Coleoptera (Insecta) del Museo de Zoología "Alfonso L. Herrera", Facultad de Ciencias, UNAM, México

The history, recent situation and perspectives of the Coleoptera collection of the Museo de Zoologia "Alfonso L. Herrera", Facultad de Ciencias, UNAM, is presented. The collection consists of 1,178 species and 5,664 specimens from 44 families. Five hundred fifty two species are identified only to family level, 298 to specific level, 200 to generic level, 21 close to some species...

Mamíferos de cuatro áreas con diferente grado de alteración en el sureste de México

The mammals from four areas of Southeastern Mexico were examined to compare the species diversity in areas characterized by various degrees of disturbance caused by human activities such as felling of trees, cattle grazing, and agriculture. We examined 458 specimens from 52 species in the four study areas. Carlos A. Madrazo was the site with more species richness (n= 41) and also...

Densidad y daños de plagas del maíz, bajo labranza convencional y de conservación

The effects of conventional and conservation tillage on the incidence and damage of the fall armyworm Spodoptera frugiperda (J.E. Smith), armyworm Pseudaletia unipuncta (Haworth) and the small weevil Nicentrus testaceipes (Champion) on corn were studied during the spring-summer period, of 1998, in Chapingo, Mexico. Fifty plants per experimental unit were visually examined at each...

Descripción de la larva y pupa de Euphoria basalis (Gory & Percheron, 1833) (Coleoptera: Melolonthidae: Cetoniinae) con observaciones sobre su biología

Three larval instars and pupa of Euphoria basalis (G. & P.) are described for the first time, with specimens collected and reared near San Cristobal de Las Casas, Chiapas, Mexico. Drawings of diagnostic structures and data about the life cycle and habits of this species are included.

105 años de investigación mastozoológica en México (1890-1995): una revisión de sus enfoques y tendencias

We reviewed and analyzed the scientific literature on mammals of Mexico, including journal articles, the series Mammalian Species, book chapters and books, published between 1890 and 1995. The references were classified according to 11 general topics and included into a database. We registered 2129 publications, of which 1826 were articles in periodical journals, 206 fascicles...

El límite sur de la región mediterránea de Baja California, con base en sus tetrápodos endémicos

To determine the southern limit of the mediterranean region in Baja California I analized the distribution of most tetrapods that breed in the area. I concluded that the limit of this community coincides with Arroyo del Rosario (aprox. 30º Lat. N), although mediterranean taxa begin to dissapear since Arroyo de San Telmo (Aprox. 30°57' Lat. N). Some desert species come in from the...

Análisis histórico de la clasificación de los coleoptera Scarabaeoidea o Lamellicornia

This study presents an historic analysis of the classification process of the Scarabaeoidea (Insecta: Coleoptera). The analysis is divided in three periods including 59 authors, beginning with Linné in 1735, and finishing in 2001 with Pretorius and Scholtz. The first period (1735-1856) was chosen, since it encompasses a time period prior to the publication of Darwin's "The Origin...

Historia de vida de Uma paraphygas (Sauria: Phrynosomatidae) en la reserva de la biosfera de Mapimí, Durango

Uma paraphygas is an endemic lizard which is in danger of extinction because of its very restricted distribution, low genetic variability, and the high environmental pressure to which it is exposed. Two populations of U. paraphygas were observed in two areas of 2 ha each in the Mapimi Biosphere Reserve, Durango. The field work was carried out from autumn of 1997 to the summer of...

Experimentos en autoorganización

We describe the design and experiments performed with a computing simulation tool representing a synthetic ecosystem with three components (producers, herbivores and predators). This model is a cellular automata, but can be best defined as an individual-based model (IBM), where each agent exhibits its own singularity responding to a series of invariable labels that in an informal...

Patrones biogeográficos de la riqueza de especies y el endemismo de la avifauna en el oeste de México

We analyzed patterns of species richness and endemicity in the avifauna of western Mexico from northern Sonora to southeastern Chiapas. The region was subdivided in 24 transects as study units, and analyses were performed using point data obtained from scientific collections and bibliography, helped by the use of a GIS. For the recognition of general biogeographic patterns and...

Infestación y distribución corporal de la nigua Eutrombicula alfreddugesi (Acari: Trombiculidae) en el lacertilio de las rocas Sceloporus couchii (Sauria: Phrynosomatidae)

We studied the infestation degree and corporal distribution of the chigger Eutrombicula alfreddugesi on the lizard Sceloporus couchii in a population of Santa Catarina, Nuevo León, México. Most lizards had acari; however, the mean number of acari for males was significantly higher than the mean for females. There was not significant relationship among the snout-vent length...

Neotrichonotulus, a new genus for three Mexican Aphodiini (Scarabaeoidea, Aphodiidae)

Aphodius inurbanus Gordon & Howden, A. perotensis Deloya & Lobo, and A. urangai Islas are redescribed and illustrated. The new genus Neotrichonotulus is proposed for the three Mexican taxa. The genus is easily distinguishable from Trichonotulus by having the pronotum not bordered at base and the head glabrous.

La colección himenopterológica (Insecta) del Museo de Zoología "Alfonso L. Herrera

The Hymenoptera collection of the Museo de Zoología "Alfonso L. Herrera", Facultad de Ciencias, UNAM, has 22,015 bee specimens in a database, which belong to six families, 115 genera and 819 species and subspecies, and have been collected from 22 states in the country and 21 vegetational types. These data make this collection the second in importance for this group of insects in...

Estructura y composición de la comunidad de macro invertebrados acuáticos asociados a Tillandsia turneri Baker (Bromeliaceae) en un bosque alto andino colombiano

We studied the acuatic macro invertebrates community associated with the water tank of Tillandsia turneri (Bromeliaceae) in a montane cloud forest (at 3000 m altitude) of Cundinamarca, Colombia. Thirty seven plants were sampled for which the amount of water and some morphological and physicochemical variables were also determined. Twenty eight of macro invertebrates morphospecies...

Ciclo reproductor de Sceloporus poinsettii Baird y Girard 1852 (Squamata: Phrynosomatidae) en el centro del desierto chihuahuense, México

The reproductive cycle of a population of the viviparous lizard Sceloporus poinsettii Baird y Girard 1852 was determined using data obtained from field caught individuals at the Biosphere Reserve of Mapimí, Durango, México. Between 1993 and 1994 monthly samples of this species were collected from rocky hills. Females begin vitellogenesis in late summer, culminating in ovulation...

Informaciones ecológicas sobre Coprophanaeus (Coprophanaeus) telamon nevinsoni Arnaud & Gamez (Coleoptera: Scarabaeinae: Phanaeini) en un sector de la selva húmeda submontana en Mérida, Venezuela

The subspecies Coprophanaeus (Coprophanaeus) telamon nevinsoni Arnaud & Gámez was analyzed in forest and in a mixed plantation using necrotraps in order to study the daily and annual activity, and the using of the space and the bait that was placed artificially in order to observe how it uses carrion resource. It was collected during the year. Its biggest abundance was registered...

Herpetofauna del Rancho Las Papas, Jalisco, llanuras de Ojuelos-Aguascalientes, México

As part of a project focused on evaluating the potential of modified habitats for biological conservation in the Llanos de Ojuelos-Aguascalientes physiographic subprovince in central Mexico, we inventoried the amphibians and reptiles of Rancho Las Papas, Jalisco, between May 1999 and September 2005. This ranch contains grassland, native and cultivated nopaleras (communities of...

Coralillos verdaderos (Serpentes: Elapidae) y coralillos falsos (Serpentes: Colubridae) de Veracruz, México

Five species of coral snakes genus Micrurus, and 14 species of mimic false coral snakes of different colubrid genera ocurr in Veracruz, making encounters with false coral snakes more likely. However, positive identification by color pattern between coral snakes and their mimics is not reliable because of inter and intraspecific color variation and similarities in coloration...

Estado del conocimiento y conservación de los coleópteros Scarabaeoidea (Insecta) del estado de Hidalgo, México

A faunistic and conservation-oriented analysis of the Scarabaeoidea beetles from the Hidalgo State, México is presented. Seven families with 95 genera and 276 species are recorded, of which five genera and six species are considered introduced. Fifteen species are cited for the first time for this state and 21 species are considered to be erroneously or doubtfully recorded for...