Ángela Parrado-Rosselli

• Ph.D.
• Professor (Full) at District University of Bogotá

Urbanization poses a considerable threat to biodiversity and ecosystem services, particularly affecting fauna through loss of connectivity, habitat reduction, and limited green spaces. In response, the concept of eco-urbanism has emerged, introducing contrasting urbanization models advocating either a compact city with intensive land use and limite...

Recently, the Andean subpáramo in Colombia has experienced severe wildfires, but little is known about the functional composition of recovering or not after a wildfire. Therefore, we examined the functional community composition subpáramo affected by fire in 2016. We documented how functional traits changed 31 months after the disturbance and compa...

In fire-influenced ecosystems, some plant species have the ability to recover, germinate, and to establish after a fire; however, their proportion and dominance varies between sites. The objective of this work was to evaluate natural regeneration following a fire in a tropical dry forest located in the Upper Magdalena River Valley in Colombia. In t...

Con el objetivo de promover la restauración de los bosques secos tropicales del norte del Tolima, se realizó la siembra de 20.000 árboles en bosques secos del Tolima. En la zonificación de sitios de restauración se priorizaron las áreas afectadas por el incendio forestal del año 2019 y sitios de interés local. Se consolidaron acuerdos de siembra co...

En el Parque Ecológico Distrital de Montaña Entrenubes, ubicado en Bogotá (Colombia), el turismo de naturaleza es uno de sus prin­cipales usos. Sin embargo, a pesar de una gran afluencia de visitantes al área, no se han desarrollado estrategias de ecoturismo propiamente dichas; más aún, aunque esta área protegida surgió como iniciativa de las misma...

Con el fin de evaluar la restauración desde un enfoque funcional se compararon las interacciones de dispersión de semillas por aves entre un bosque restaurado y el de referencia. Se registró la abundancia y riqueza de aves frugívoras y plantas ornitócoras; del mismo modo, se generaron matrices de interacción con base en el consumo de frutos y el so...

Most of the models for analyzing the relationship between phenology and climatic variables rely on quantitative data on flowering and fruiting, while the use of semi-quantitative information such as the categorical Fournier Index remains a challenge to phenological data analysis. Fuzzy logic has been recently used for modeling climate data and its...

El conocimiento de los rasgos reproductivos de las plantas en bosques secos tropicales es crucial para entender su capacidad de persistencia y respuesta a perturbaciones. Esto proporciona herramientas valiosas para estrategias de restauración ecológica. La zoocoria, a través de frutos atractivos para animales, es la principal estrategia de dispersi...

In fire-influenced ecosystems, some plant species have the ability to recover, germinate, and to establish after a fire; however, their proportion and dominance varies between sites. The objective of this work was to evaluate natural regeneration following a fire in a tropical dry forest located in the Upper Magdalena River Valley in Colombia. In t...

In fire-influenced ecosystems some plant species have the ability to recover, germinate and establish after a fire. However, their proportion and dominance varies between sites. Currently, there is a debate on the influence of fire in Colombian tropical dry forests and if the vegetation has the capacity to regenerate after fire. Natural regenerat...

Because the genus Puya is an important food resource for Andean bears, the nutritional content of its leaves might be important for choosing the individuals, species or quantity in order to meet the bears’ nutritional requirements. The objective of this research was to compare whether or not there are differences between mature and young leaves...

El objetivo de esta investigación fue caracterizar, durante un ciclo anual, la relación fenología-clima de cuatro especies comunes de orquídeas en un bosque altoandino de la Cordillera Oriental colombiana. Se monitoreó mensualmente la floración y la fructificación de 30 individuos adultos de Cyrtochilum revolutum, Malaxis excavata, Ponthieva dipter...

Functional traits variation, as part of a plant functional types (PFT) for knowing carbon plant performance, has been poorly studied. The objective of this research was to establish the best PFT for carbon store prediction, in aboveground biomass in Colombian Caribbean dry forest, through a) evaluation of 4 functional traits associated with the sto...

A pesar del importante acervo de conocimiento disponible sobre los bosques de Colombia, este revela numerosos vacíos de temas relevantes para su adecuada gestión: especies invasoras, aspectos genéticos, estudios ecológicos bajo contextos de transformación y aproximaciones al posconflicto Ver: http://reporte.humboldt.org.co/biodiversidad/2015/cap1/...

Carbono almacenado en bosque seco del caribe colombiano Los bosques secos de Colombia son los ecosistemas más amenazados, quedando una extensión no mayor a 735.514 ha en el país. Históricamente grandes extensiones de bosque seco fueron dedicados a la agricultura y la ganadería: En la actualidad en algunos sitios se ha disminuido la intensidad de us...

Scarabaeoidea superfamily (Insecta: Coleoptera) as a bioindicator element of anthropogenic disturbance in an amazon national park. Insects have been recognized to be important indicators of the quality elements of ecosystems, among others, because of their rapid response to environmental variability and ease cost-effective capture. In this work we...

Diferentes grupos de insectos se consideran importantes elementos bioindicadores de la calidad de los ecosistemas, los coleópteros son hoy en día uno de los grupos más reconocidos y utilizados para el monitoreo y establecimiento de áreas protegidas. Se evaluó el uso de la superfamilia Scarabaeoidea como bioindicador del grado de perturbación antrop...

Seed predation has been considered as a selective process that decreases reproductive fitness of plant species. Fruits and seeds of Sapindus saponaria collected in Anolaima town, between 2009 and 2010 were used to characterize predation of Leptostylus gibbulosus (Cerambycidae) and its effects on germination based on the relation within incidence an...

The goal of this research was to characterize the population structure and density of the bombona palm Iriartea deltoidea in forests of terra firme in the southern areas of the Amacayacu National Park, in the Colombian Amazon. In six 1-ha plots and 90 transects of 50 x 1 m, all individuals, from seedlings to adults, were censused. For each individu...

Seed predation has been considered as a selective process that decreases reproductive fitness of plant species. Fruits and seeds of Sapindus saponaria collected in Anolaima town, between 2009 and 2010 were used to characterize predation of Leptostylus gibbulosus (Cerambycidae) and its effects on germination based on the relation within incidence an...

Propagation trials were conducted on 13 tree spe- cies considered in previous studies as a suitable for rehabilitation of the La Lejiamicrobasin in Cun- dinamarca, Colombia. Studied species were Gua- dua angustifolia (guadua), Trichanthera gigantea (madre de agua), Tabebuia rosea (ocobo), Cordia alliodora (nogal cafetero), Croton spp (drago), Eryth...

Knowledge of mechanisms of tree species reproduction under natural situations including fruit and seed production patterns is very important for forest management strategies. Considering the influence of abiotic factors such as soil characteris tics, humidity and rainfall on fruiting phenology, we studied fruit production patterns of the Andean oak...

Animals affect the spatial occupation patterns of tropical forest plants throughout the seed disper sal they perform. Therefore, changes in vertebrate populations by human disturbance might affect re generation dynamics of plant species. We studied differences in the spatial distribution of seeds and seedlings of the Andean oak (Quercus humboldtii)...

The young leaves of Astrocaryum chambira are used by the indigenous people in the Amazon as raw material for handicrafts. However, few studies have been made on the natural history of this palm and on the indirect impact caused by the decrease of its dispersal agents. Considering that the loss of animal dispersal vectors due to hunting and landscap...

The young leaves of Astrocaryum chambira are used by the indigenous people in the Amazon as raw material for handicrafts. However, few studies have been made on the natural history of this palm and on the indirect impact caused by the decrease of its dispersal agents. Considering that the loss of animal dispersal vectors due to hunting and landscap...

The objective of this paper is to present a collaborative research process between the Nonuya indigenous community and western scientists whilst studying fruit production patterns and the role of animals in the spatial distribution patterns of terra firme rain forest tree species in the Colombian Amazon. The process is presented in four stages: ini...

Estudio de caso La dispersión de semillas: una herramienta para comprender la composición y estructura de los bosques amazónicos L a dispersión de semillas es uno de los procesos determinantes en el reclutamiento, rango de expansión, demografía y estructura espacial y genética de las poblaciones de plantas, particularmente a escalas locales e inter...

The spatial patterns of seed and seedling distribution relative to parent trees (seed and seedling shadow, respectively) were studied for Dacryodes chimantensis (Burseraceae) and Brosimum utile (Moraceae), two common tree species of terra irme forests of Colombian Amazonia. The general objective was to assess whether the patterns imposed by seed di...

La revista Colombia Forestal publica manuscritos originales en temáticas del campo forestal y diversos aspectos de los recursos naturales y del medio ambiente, los cuales se discriminan en las categorías de artículo de investigación, de revisión, de reflexión y notas técnicas de acuerdo con lo estipulado por COLCIENCIAS para las publicaciones cient...

We studied some feeding behaviors of the purple-throated fruitcrow (Querula purpurata) in two Colombian Amazonian forests, which affect the primary seed dispersal of the plants on which it feeds. Visit length, number of fruits removed and dispersed, feeding rates, and fruit-handling times were compared to those obtained for two other cotingas feedi...

We compared fruiting data derived simultaneously from fruit traps placed on the ground and from canopy-surveyed plots in a terra firme rain forest, Colombian Amazonia. Values derived from the canopy-surveyed plots were higher than fruit-trap estimates. Fruiting patterns obtained throughout both methods were not correlated. Our results showed that t...

The effect of seed dispersal by animals on the patterns of spatial distribution of Dacryodes chimantensis (Burseraceae) and Brosimum utile (Moraceae), two common tree species of terra firme rain forests in Colombian Amazonia was evaluated. Animal seed dispersers and patterns of seed deposition by frugivores were recorded for each tree species. The...

Seasonal variations in fruit and seed abundance, affect the availability of food for frugivore species. We measured monthly changes in fruit availability for animals, at the canopy level in a terra firme rain forest of the Middle Caquetá River region, Colombian Amazonia. Fruit availability was measured as the number of individuals and species beari...

We characterized the dispersal spectra and phenology of 298 vascular plant species of the sandstone plateaus (tepuis) of Colombian Amazonia. Dispersal modes were determined by the morphology of dispersion units, personal observations on fruit consumption, and an extensive literature review. We obtained the number of species per dispersal mode for t...

Seed dispersal is the last step in the reproductive cycle of plants, but also the starting point in the process of population renewal and recruitment. Seed dispersal determines the expansion range, and the spatial and genetic structure of plant species. Aimed at better understanding of the ecology and dynamics of Amazonian rain forests, some aspect...

Los animales afectan los patrones de ocupacion de espacio de las plantas de los bosques tropicales a traves de la dispersion que generan. Por lo tanto, cambios en las poblaciones de vertebrados por la intervencion antropica, pueden estar afectando las dinamicas de regeneracion de las especies de plantas. Se estudiaron las diferencias en la distribu...

El conocimiento acerca de los mecanismos de reproduccion de las especies de arboles, incluyendo los patrones de produccion de frutos y semillas en situaciones naturales, es muy importante para el manejo forestal. Considerando el efecto de los factores abioticos tales como las caracteristicas del suelo, la humedad y precipitacion en la fenologia de...

Estudiamos la dispersión primaria diurna de las semillas de Dacryodes chimantensisy Protium paniculatum (Burseraceae) en un bosque de tierra firme de la Amazoniacolombiana. Desde diciembre de 1999 hasta junio de 2000 registramos las visitas defrugívoros, la remoción de frutos y la dispersión primaria de semillas de cincoindividuos por especie. Enco...

Primary seed dispersal at the canopy level was recorded by the authors in 1996 in five tree species of a terra firme forest along the Caquetá River in the Colombian Amazon. The trees were Trattinnickia sp. (Burseraceae), Hebepetalum humiriifolium and Roucheria columbiana (Linaceae), Ocotea sp. (Lauraceae), and Micropholis venulosa (Sapotaceae). Wit...