We report the first record of Edentomya piauiensis in Maranhão State, Brazil in a cave, a similar ecotope where this species has been previously described in the literature. The specimens were captured in Toca do Inferno Cave, Barão de Grajaú, Maranhão, from September/2021, January, and May/2022. Twelve Hoover Pugedo (HP) light traps were installed at 1.5 m above the ground...
Phylliroe bucephala is a nudibranch notable for having a laterally compressed body and a pelagic lifestyle. Although P. bucephala is widely distributed in tropical and subtropical waters of the Atlantic, Pacific, and Indian Oceans, it has not been recorded in the Colombian Pacific. Here we report the presence of the species in the coastal zone of Nuquí and Pizarro, two localities...
Tropane alkaloids (TAs) are the main secondary metabolites found in Datureae (Solanaceae). These compounds are neurotoxic to many organisms. However, some insect species can sequester and accumulate TAs in their bodies. Brugmansia suaveolens (Humb. and Bonpl. ex Willd.) Bercht. and J.Presl, a Neotropical shrub, is known to produce TAs. In this study, we report the sequestration...
This study aimed to present a list of taxa of testate amoeba from one of the largest wetlands in South America, the Iberá. Due to the key role in habitat structuring in these environments, the influence of macrophytes on testate amoeba communities was examined. Plankton and periphyton samples were collected in water bodies of the Portal Carambola, Iberá (Province of Corrientes...
Air pollution is a global recorded phenomenon, which affects human health and other organisms as well, due to the amount and danger of toxic compounds that are released. Lichens are photosynthetic organisms widely used as bioindicators of air quality. The present research aimed to evaluate the air quality of the municipality of Facatativá-Cundinamarca, Colombia using lichens...
The replacement of Caatinga by extensive agriculture has led to soil degradation in maize (Zea mays L.) growing areas. The objective of this study was to evaluate the effects of soil correction in association with Azospirillum brasilense to replace nitrogen (N) fertilizer on the vegetative growth of two maize genotypes cultivated on degraded soil. The soil was collected in an...
In this study, the objective was to determine the potential effect of hive color on honey bee colony performance. Among the three hive groups, the hives, and their covers in the first group were painted in white; the hives and covers in the second group were painted in blue, and finally, the hives in the third group were painted in blue while their covers were painted in white...
Frankliniella occidentalis (Insecta: Thysanoptera) is a cosmopolitan species considered a major pest of ornamental, horticultural, and fruit crops. Colored traps with artificial or sunlight sources are used to monitor populations and manipulate adult behavior as a control alternative. In paired controlled trials, phototaxis of F. occidentalis was assessed at 21 wavelength...
The objectives of this study were to identify the species of psittaciform birds kept in captivity as companion and ornamental animals in Yucatán, Mexico, as well as to estimate the prevalence and intensity of the intestinal parasites. 16 species of psittaciform belonging to 11 different genera were studied, of which three species are locally distributed (Amazona albifrons...
Aquatic mites show a great morphological variability and inhabit a great diversity of freshwater habitats, especially taking advantage of the complexity of resources provided by South American aquatic plants. The relevance of aquatic mites in a microhabitat not studied so far about Amazonian macrophyte plants and Andean filamentous algae is analyzed. A new species of aquatic mite...
This is the first study related to the zooplankton assemblage in the La García reservoir, an equatorial high Andean reservoir located in the central region of the department of Antioquia (Colombia). The main objective of the work was to know the composition and abundance of the zooplankton assemblage in the reservoir and to establish if there is any relationship between these and...
In this study, we evaluated the abundance and richness of diurnal butterfly species in three vegetation types in the Central Andes of Colombia. Three surveys were conducted for each vegetation type, between December 2021 and January-February 2022, using two capture methods: an entomological net and a Van Someren-Rydon trap, the latter baited with decaying bananas and liquefied...
Collisions with windows cause millions of bird deaths per year, these events are because birds are unable to recognize glass as a physical barrier. Some studies mention that some families and behaviors make some species more susceptible to collisions. The objectives of the present study were to determine the composition of species that collide against building windows, to know...
The açaí (Euterpe oleracea Mart.) has an ethno-variety white characterized by the absence of anthocyanin in its epicarp, differing from violet açaí. White ethno-variety is under strong anthropic pressure, which can lead to genetic erosion. Studies with white açaí that allow the selection of possible cultivars to stimulate their cultivation are scarce. Therefore, this work aimed...
The banano (Musa x paradisiaca L.) is a tropical fruit, susceptible to infection by Colletotrichum sp. Fungicides are the most typical approach for controlling postharvest infections. Concerns regarding its negative impact on human health and the environment have prompted the quest for alternate remedies. Because of its antimicrobial activity, chitosan is an environmentally...
Tropical dry forests (TDF) are highly susceptible to land degradation. The inter-Andean Valley of the Cauca River (IVCR) has the most fragmented Colombian dry forests, and their restoration is essential. Here, potential areas for restoration were identified using a habitat suitability modeling (HSM) approach. TDF vascular plants and bioclimatic predictors were used. Species were...
Invasive alien species pose a significant threat to global biodiversity. In the Baja California Peninsula (Mexico), these organisms have proliferated, and the measures taken have been insufficient to mitigate their expansion and reduce their environmental impact. This study developed a specific eradication index for the bullfrog (Lithobates catesbeianus; Shaw, 1802), classified...
The telomerase enzyme, which extends the Deoxyribonucleic Acid (DNA) regions called telomeres at the ends of the chromosomes, has an important place in aging, cancer and stem cell studies. In this study, the effects of betaine and caffeine on telomerase enzyme activity in mice were investigated. Telomerase activity was measured by a Polymerase Chain Reaction-Enzyme Linked...
We reported anomalies in three anuran species belonging to two families: Craugastoridae (Pristimantis gutturalis and P. chiastonotus), and Bufonidae (Rhinella castaneotica). All records were found in two conservation units, a well-preserved and protected area of the Amazonian rainforest in the state of Amapa, eastern Amazon. The anomalies detected were anophthalmia (characterized...
Due to timely and financial hampering in developing nations, field research has been encouraged to use rapid and cost-effective methods without compromising the acquisition of good-quality data. Species richness is a widely used component in ecological studies, especially of birds, which are conspicuous, diurnal, and excellent bioindicators. Birds are also a proper taxonomic...
Seagrass beds constitute one of the world’s most productive marine ecosystems and are a source of food and shelter for a wide variety of species. The largest extension of seagrass meadows in the Seaflower Biosphere Reserve (Seaflower BR) is found around the Caribbean islands of San Andrés, Old Providence, and Santa Catalina, with small patches around the cays Bolívar, Albuquerque...
We report for the first time the occurrence of the genus Ulmeritoides (Ephemeroptera: Leptophlebiidae) in the biogeographic Chocó (Colombia). The new record is based on nymphs collected in a small lagoon in the municipality of Condoto, department of Chocó. The nymphs can be found in the Chocó Limnological Collection (CLCH-Insec).Keywords : Aquatic insects; geographic distribution...
This work provides a new record that extends the western limit of the geographic distribution of Synbranchus marmoratus towards the Central Andes of Argentina, in the Department of Calingasta, Province of San Juan. In addition, an update of the geographical distribution map of the species in the country is provided based on this record and a complete literature review. We...
Glyphosate is a foliar herbicide detected in soil, sediment, and water, causing non-visible damage to non-target organisms, potentially affecting the diversity, structure, and functioning of microbial communities associated with riparian vegetation that provide ecosystem services. The objective of the present work was 1) to determine the viable counts of microorganisms and 2) to...
Native stingless bees, Meliponini, are the only social bees that produce honey in addition to honeybees. These bees have been managed in meliponiculture and for crop pollination. In Ecuador, meliponiculture studies are scarce and limited by the lack of species recognition. Traditionally the taxonomic recognition of the species is based on morphological characteristics. In...