scholarly journals Leaf beetles attracted to light in a tropical dry forest of northern Mexico (Coleoptera: Chrysomelidae)

Dugesiana ◽  
2021 ◽  
Vol 28 (2) ◽  
pp. 279-290
Author(s):  
Sara López Pérez ◽  
◽  
Geovanni M. Rodríguez-Mirón ◽  
Magdalena Ordóñez Reséndiz ◽  
Santiago Zaragoza Caballero ◽  
...  
Keyword(s):  
Geographic Distance ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Light Traps ◽  
Leaf Beetles ◽  
Northern Mexico ◽  
Species Similarity ◽  
Temporal Abundance ◽  
Number Of Individuals ◽  
Determining Factor

This is the first study of the composition of leaf beetles attracted to light in Mexico. We analyze the richness, temporal abundance and similarity between four localities of tropical dry forest in Sierra de San Javier, Sonora. A total of 3217 individuals belonging to 45 morphospecies, 31 genera and 10 tribes within five subfamilies of Chrysomelidae were collected in light traps in the tropical dry forest of Sierra de San Javier, Sonora. Galerucinae was the subfamily with the greatest number of genera and species. The genera with the highest number of species were Pachybrachis Chevrolat and Alagoasa Bechyné. Eight genera were represented by two species and 21 genera by only one species. Metrioidea rugipennis (Blake) was the species with the highest number of individuals (80% of the abundance recorded). According to the taxonomic and species similarity analysis, the sites San Javier and La Barranca had the highest similarity, while the lowest values were recorded at Rancho Las Peñitas and Cañón de Lo de Campa. The low similarity between sites cannot be explained by the geographic distance since it was not a determining factor to explain the low similarity in Sierra de San Javier.

scholarly journals Evaluation of the efficacy of neonicotinoid and pyrethroid insecticides in Diaphorina citri Kuwayama (Hemiptera: Liviidae) populations in Colombia

2018 ◽  
Vol 12 (2) ◽  
pp. 358-368
Author(s):  
Augusto Ramírez-Godoy ◽  
Gina Puentes-Pérez ◽  
Hermann Restrepo-Díaz
Keyword(s):  
Tropical Dry Forest ◽  
Dry Forest ◽  
Asian Citrus Psyllid ◽  
Insect Vector ◽  
Diaphorina Citri ◽  
Pyrethroid Insecticides ◽  
Lambda Cyhalothrin ◽  
The Mean ◽  
Number Of Individuals ◽  
Forest Conditions

The Asian citrus psyllid Diaphorina citri is the insect vector of the disease known as huanglongbing (HLB), which is the most devastating disease of citrus crops in the world. The Asian citrus psyllid was officially reported in Colombia in 2007, and a national phytosanitary emergency was declared because of the presence of HLB in 2015. Two different experiments were carried out in two locations (Apulo and Jerusalén, Department of Cundinamarca) in Colombia to evaluate the effectiveness of neonicotinoid (clothianidin, imidacloprid and thiamethoxan) and pyrethroid applications (bifenthrin, deltamethrin and lambda cyhalothrin) on the control of D. citri populations (adults, nymphs and eggs) in ‘Tahiti’ lime trees established under tropical dry forest conditions. In the first experiment, trees were foliarly treated as follows: (1) untreated trees; (2) trees treated with 100 g ha-1 of imidacloprid; (3) trees treated with 60 g ha-1 of bifenthrin; (4) trees treated with 12.5 g ha-1 of deltamethrin and (5) trees treated with a co-formulation of 70 g ha-1 of a neonicotinoid (thiametoxan) and 53 g ha-1 of a pyrethroid (lambda cyhalothrin). In the second experiment, trees were treated with 100 g ha-1 of clothianidin. Foliar insecticide applications were carried out at 0 and 4 weeks after the initiation of treatments (WAT). In the first trial, the control presented a mean number of individuals per flush of ≈1.14, whereas the trees treated with neoinicotinoids and pyrethroids showed 50% fewer individuals (0.53-0.61). For the population of immatures, the number of nymphs was 2.25 nymphs per flush in the control, as compared to 0.82-1.22 individuals observed in the treatments with insecticides. The mean number of eggs was also between 80-100% higher in the control trees (2.37 individuals), as compared to the treated trees (1.14-1.78). In the second trial, the use of clothianidin showed a higher control of eggs. The results suggest that the rotation of neonicotinoids with pyrethroids can be a tool to reduce populations and delay resistance processes in D. citri in citrus trees established under tropical dry forest conditions in Colombia.

scholarly journals COMPOSICIÓN VEGETAL, PREFERENCIAS ALIMENTICIAS Y ABUNDANCIA DE BIBLIDINAE (LEPIDOPTERA: NYMPHALIDAE) EN UN FRAGMENTO DE BOSQUE SECO TROPICAL EN EL DEPARTAMENTO DEL ATLÁNTICO, COLOMBIA

2015 ◽  
Vol 20 (3) ◽  
pp. 79-92 ◽  
Author(s):  
María Angélica VARGAS- ZAPATA ◽  
Carlos José BOOM- URUETA ◽  
Leidys Isabel SEÑA-RAMOS ◽  
Alba Lucia ECHEVERRY-IGLESIAS ◽  
Neis José MARTÍNEZ HERNÁNDEZ
Keyword(s):  
Woody Plants ◽  
Tropical Dry Forest ◽  
Basal Area ◽  
Dry Forest ◽  
Forest Fragment ◽  
Plant Composition ◽  
Components Analysis ◽  
Spatio Temporal ◽  
Determining Factor

<p>Se analizó la variación espacio-temporal de la abundancia de las mariposas de la subfamilia Biblidinae (Lepidoptera: Nymphalidae) en un fragmento de Bs-T en la Reserva Campesina La Montaña (RCM), Atlántico, Colombia; desde enero hasta agosto de 2011. Se marcaron cuatro puntos dentro del área de estudio, donde se ubicaron trampas Van Someren–Rydon cebadas con calamar en descomposición, fruta fermentada y con una mezcla de los anteriores cebos. Adicionalmente, se realizó una caracterización de la vegetación por punto, para lo cual se tomaron datos de diámetro a la altura del pecho (DAP), altura y tamaño de la copa para todas aquellas plantas leñosas con DAP mayor o igual a 2,5 cm. Se capturaron 76 individuos agrupados en seis especies y cuatro géneros; destacándose <em>Hamadryas februa</em> (Hübner) como la más dominante con 32 individuos. El mes de marzo presentó la mayor riqueza y abundancia (6 especies y 25 individuos) durantes las primeras lluvias en la zona. El punto 3 presentó los valores más altos de diversidad y abundancia de Biblidinae (5 especies y 37 individuos) y la mayor densidad de árboles (D= 0,28 individuos/m<sup>2</sup>). Se demuestra que la estructura de este grupo de mariposas presenta un patrón temporal y espacial en esta reserva. El análisis de componentes principales demostró que el área basal total (ABT) y la Densidad (D) de plantas leñosas, pueden considerarse como un factor determinante en la distribución y abundancia de las especies de la subfamilia Biblidinae en la RCM.</p><p align="center"><strong>Plant Composition, Feeding Preferences and Abundance of Biblidinae (Lepidoptera: Nymphalidae) in a Tropical Dry Forest Fragment in the Department of Atlántico, Colombia</strong></p><p>The abundance and spatio-temporal variation of butterflies of the Biblidinae subfamily (Lepidoptera: Nymphalidae) in a fragment of Tropical dry forest at the Reserva Campesina La Montaña (RCM), Atlántico, Colombia; from January until August 2011, was analyzed. Within the study area four points were marked; Van Someren-Rydon traps were placed.in each point using rotten squid, fermented fruit and a mixture of both as bait. In addition, a characterization of the vegetation by point was performed, taking data of the diameter to the breast height (DBH), height and size of treetop of all woody plants with a DBH greater than or equal to 2.5 cm. In total 76 butterfly individuals grouped in six species and four genera were captured; being <em>Hamadryas februa</em> (Hübner) the most dominant with 32 individuals. The greatest richness and abundance was recorded in March (6 species and 25 individuals), during the first rains in the study area. The point 3 presented the highest values of diversity and abundance (five species and 37 individuals) of Biblidinae and the higher density of trees (D= 0,28 individuals/m2). The structure of this butterflies group presents a spatio-temporal pattern in this reserve. The principal components analysis showed that the total basal area (ABT) and the density (D) of woody plants, can be considered a determining factor in the distribution and abundance of species of the subfamily Biblidinae at the RCM.</p>

scholarly journals Chronic leaf harvesting reduces reproductive success of a tropical dry forest palm in northern Mexico

PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0205178 ◽  
Author(s):  
Leonel Lopez-Toledo ◽  
Angeles Perez-Decelis ◽  
Franceli Macedo-Santana ◽  
Eduardo Cuevas ◽  
Bryan A. Endress
Keyword(s):  
Reproductive Success ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Northern Mexico

Diversity of Butterflies (Lepidoptera) in Sierra de Huautla, Morelos, México: A Conservation Approach

2019 ◽  
Vol 112 (4) ◽  
pp. 409-417
Author(s):  
Ma Ventura Rosas-Echeverría ◽  
Carlos Alfredo Coyote-Ávila ◽  
Karla Maria Aguilar-Dorantes ◽  
Concepcion Martínez-Peralta
Keyword(s):  
Species Richness ◽  
Beta Diversity ◽  
Tropical Dry Forest ◽  
Biosphere Reserve ◽  
Alpha Diversity ◽  
Dry Forest ◽  
Alpha And Beta Diversity ◽  
Analysis Of Similarity ◽  
Species Similarity ◽  
First Time

AbstractIn this study, we carried out an inventory of butterfly diversity and an analysis of alpha and beta diversity considering the effects of phenology and degree of disturbance in tropical dry forest. The study included three localities: Cañadas de Ajuchitlán and El Limón, situated within the Sierra de Huautla Biosphere Reserve (REBIOSH) natural protected area, and San Miguel de los Elotes, which is outside of the REBIOSH. We systematically sampled each of the localities using two collection methods once per month for a full year (April 2013 to March 2014). A total of 4,017 specimens belonging to 119 species and 83 genera were collected. We recorded for the first time the presence of Perichares aurina Evans (Lepidoptera, Hesperiidae), in Mexico, 14 additional Hesperiidae species were new records for Morelos, Mexico, and 16% of the species recorded in this study are endemic to Mexico. Species richness was highest in August for the two localities (Cañadas de Ajuchitlán and El Limón), located within the REBIOSH. Species richness was highest in November for San Miguel de los Elotes, which is outside of the REBIOSH. In terms of the alpha diversity values (0D, observed diversity), Cañadas de Ajuchitlán had the highest species richness. In the analysis of similarity (Beta diversity), the two localities within the REBIOSH had the highest species similarity, despite being the most geographically distant.

scholarly journals Landscape Genetics of Leaf-Toed Geckos in the Tropical Dry Forest of Northern Mexico

PLoS ONE ◽  
2013 ◽  
Vol 8 (2) ◽  
pp. e57433 ◽  
Author(s):  
Christopher Blair ◽  
Victor H. Jiménez Arcos ◽  
Fausto R. Mendez de la Cruz ◽  
Robert W. Murphy
Keyword(s):  
Landscape Genetics ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Northern Mexico

scholarly journals Use of Habitat and Activity Patterns of Pionus menstruus and Amazona farinosa (Aves: Psitacidae) in a Tropical Dry Forest in Toluviejo, Sucre, Colombia

2020 ◽  
Vol 3 (1) ◽  
pp. 1-11
Author(s):  
Sampedro AC
Keyword(s):  
Wind Speed ◽  
Light Intensity ◽  
Daily Activity ◽  
Activity Patterns ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Point Counts ◽  
Direct Observations ◽  
Number Of Individuals ◽  
Intensive Search

To determine the use of the habitat and the patterns of daily activity of two species of psittacids, present in a tropical dry forest in a town in the Montes de María, we make direct observations through point counts, advantageous points and intensive search, in 24 samplings between March and July 2017, between 05:30 and 18:30 hrs. We recorded 421 individuals of Pionus menstruus in 148 sightings and 517 of farmed Amazona in 235 sightings. The largest number of individuals of Pionus menstruus appears in April and May, while the largest number of individuals of Amazona farinosa was observed in July (X = 48.26, p <0.001, 4 df ). The proportion of sightings of these species in zones I and II was similar, but in zone III the number of individuals sighted by A. farinos a was much higher than that of P.menstruus (X2 = 44.718, p <0.001, 2 df ). Both species showed greater activity between 0600 and 0700 and between 1600 and 1800, corresponding to lower values of temperature, wind speed and light intensity than those registered at noon. Most of the sightings occurred during flight for both species. To feed, perch, groom and converse, the parrots used 13 species of trees; among them, Amazona farinosa used 11 to perform three or four activities and Pionus menstruus only used six species to perform three of the activities we observed. The frequency of sighted parrots is related to the availability of ecosystem resources, without any evidence of competition between species.

scholarly journals Hymenochaete cifuentesii, H. potosina, and H. raduloides spp. nov. from the tropical dry forest of Mexico

Mycotaxon ◽  
2018 ◽  
Vol 133 (3) ◽  
pp. 499-512 ◽  
Author(s):  
Magdalena Contreras-Pacheco ◽  
Ricardo Valenzuela ◽  
Tania Raymundo ◽  
Leticia Pacheco
Keyword(s):  
Tropical Dry Forest ◽  
Dry Forest

scholarly journals Soil Moisture Dynamics in Response to Precipitation and Thinning in a Semi-Dry Forest in Northern Mexico

Water ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 105
Author(s):  
Argelia E. Rascón-Ramos ◽  
Martín Martínez-Salvador ◽  
Gabriel Sosa-Pérez ◽  
Federico Villarreal-Guerrero ◽  
Alfredo Pinedo-Alvarez ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Forest Management ◽  
Water Availability ◽  
Dry Forest ◽  
Rainfall Events ◽  
Rainfall Characteristics ◽  
Northern Mexico ◽  
The Difference ◽  
The Impact ◽  
Moisture Dynamics

Understanding soil moisture behavior in semi-dry forests is essential for evaluating the impact of forest management on water availability. The objective of the study was to analyze soil moisture based in storm observations in three micro-catchments (0.19, 0.20, and 0.27 ha) with similar tree densities, and subject to different thinning intensities in a semi-dry forest in Chihuahua, Mexico. Vegetation, soil characteristics, precipitation, and volumetric water content were measured before thinning (2018), and after 0%, 40%, and 80% thinning for each micro-catchment (2019). Soil moisture was low and relatively similar among the three micro-catchments in 2018 (mean = 8.5%), and only large rainfall events (>30 mm) increased soil moisture significantly (29–52%). After thinning, soil moisture was higher and significantly different among the micro-catchments only during small rainfall events (<10 mm), while a difference was not noted during large events. The difference before–after during small rainfall events was not significant for the control (0% thinning); whereas 40% and 80% thinning increased soil moisture significantly by 40% and 53%, respectively. Knowledge of the response of soil moisture as a result of thinning and rainfall characteristics has important implications, especially for evaluating the impact of forest management on water availability.

Dynamic seed zones to guide climate-smart seed sourcing for tropical dry forest restoration in Colombia

2021 ◽  
Vol 490 ◽  
pp. 119127
Author(s):  
Tobias Fremout ◽  
Evert Thomas ◽  
Kelly Tatiana Bocanegra-González ◽  
Carolina Adriana Aguirre-Morales ◽  
Anjuly Tatiana Morillo-Paz ◽  
...  
Keyword(s):  
Forest Restoration ◽  
Tropical Dry Forest ◽  
Dry Forest ◽  
Seed Zones ◽  
Dry Forest Restoration ◽  
Seed Sourcing

scholarly journals Spondias tuberosa Arruda (Anacardiaceae), a threatened tree of the Brazilian Caatinga?

2016 ◽  
Vol 77 (3) ◽  
pp. 542-552 ◽  
Author(s):  
J. Mertens ◽  
J. Germer ◽  
J. A. Siqueira Filho ◽  
J. Sauerborn
Keyword(s):  
Tropical Dry Forest ◽  
Threat Assessment ◽  
Red List ◽  
Dry Forest ◽  
International Union ◽  
Population Decrease ◽  
Domestic Ruminants ◽  
Spondias Tuberosa ◽  
Iucn Assessment ◽  
Additional Income

Abstract Spondias tuberosa Arr., a fructiferous tree endemic to the northeast Brazilian tropical dry forest called Caatinga, accounts for numerous benefits for its ecosystem as well as for the dwellers of the Caatinga. The tree serves as feed for pollinators and dispersers as well as fodder for domestic ruminants, and is a source of additional income for local smallholders and their families. Despite its vantages, it is facing several man-made and natural threats, and it is suspected that S. tuberosa could become extinct. Literature review suggests that S. tuberosa suffers a reduced regeneration leading to population decrease. At this juncture S. tuberosa cannot be considered threatened according to the International Union for Conservation of Nature Red List Categories and Criteria, as it has not yet been assessed and hampered generative regeneration is not considered in the IUCN assessment. The combination of threats, however, may have already caused an extinction debt for S. tuberosa. Due to the observed decline in tree density, a thorough assessment of the S. tuberosa population is recommended, as well as a threat assessment throughout the entire Caatinga.

Sign in / Sign up

Export Citation Format

Share Document