Cambios en el uso y cobertura de la tierra entre 1948 y 2012 en el Humedal Nacional Térraba-Sierpe, Costa Rica

Acuña-Piedra, Jéssica Francini; Quesada‐Román, Adolfo

doi:10.15359/revmar.9-2.1

Cited by 9 publications

(6 citation statements)

References 3 publications

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“…Las implicaciones ambientales por los monocultivos como la palma africana y la piña son múltiples, especialmente los efectos negativos por el uso de agroquímicos que contribuyen al calentamiento global, el uso excesivo del recurso hídrico y la fragmentación de corredores biológicos (Acuña, 2006;Ávila-Romero & Albuquerque, 2018;Echeverría-Sáenz et al, 2012). En el caso de Costa Rica, en la región del Pacífico sur ambos monocultivos han crecido exponencialmente y los paisajes agrícolas se han apoderado de una región con alta biodiversidad y riqueza del país (Acuña-Piedra & Quesada-Román, 2017;Beegs & Moore, 2013).…”

Section: Introductionunclassified

Inventario florístico en un bosque amenazado por la expansión agrícola en la reserva del Centro Turístico Los Chocuacos, Costa Rica

Cedeño‐Fonseca¹,

Leitón²,

Quesada‐Román³

et al. 2020

Rev. Ambientales.

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[Introducción]: La expansión de monocultivos de palma africana (Elaeis guineensis) y piña (Ananas comosus) en Costa Rica, ha degradado en forma progresiva el entorno natural del país, particularmente la región del distrito de Potrero Grande de Buenos Aires. [Objetivo]: Se buscó evidenciar la importancia de la conservación en la reserva del Complejo Turístico Los Chocuacos (CTLC), que conserva un mosaico de bosque, entre secundario y primario, de aproximadamente 30 años y la cual, está amenazada por el crecimiento de monocultivos. [Metodología]: En un área de 25 ha, se realizó un inventario florístico mediante recorridos aleatorios en el borde del bosque, los senderos, las áreas sin senderos, las quebradas y nacientes, donde se recolectaron especímenes botánicos en estado reproductivo, que fueron herborizados y depositados en el Herbario Luis A. Fournier Origgi de la Universidad de Costa Rica. [Resultados]: Se obtuvo una riqueza florística de 75 familias, 219 géneros y 266 especies. Se encontró un nuevo registro para el país del arbusto Eugenia veraguensis y una especie del género Aristolochia que en la actualidad está siendo descrita como una nueva especie para la ciencia. La forma de vida más representativa es árbol, siendo el hábito, principalmente presente terrestre. Las familias Fabaceae, Rubiaceae y Malvaceae fueron las que poseen mayor riqueza de especies. [Conclusiones]: Este estudio evidencia la importancia de los inventarios florísticos para aumentar el conocimiento de especies presentes en zonas poco estudiadas del trópico que están siendo afectadas por el desordenado cambio en el uso de la tierra.

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Section: Introductionunclassified

Inventario florístico en un bosque amenazado por la expansión agrícola en la reserva del Centro Turístico Los Chocuacos, Costa Rica

Cedeño‐Fonseca¹,

Leitón²,

Quesada‐Román³

et al. 2020

Rev. Ambientales.

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“…In Costa Rica, for example, there are several studies on different wetlands that conclude the relevance of these reservoirs for the maintenance of the ecological dynamics of the surrounding territory, and how changes in land use in the areas adjacent to this protected wild areas generates alterations in this delicate ecosystems. Among others, the wetlands of the Térraba-Sierpe Delta [63][64][65][66], the high Andean wetlands of the Chirripó National Park [67], and the San Vito wetland [68] have been analyzed. Performing analyzes similar to those mentioned would be of great interest to complete the information of the wetland in this analyzed work.…”

Section: Discussionmentioning

confidence: 99%

The Vega Alta of Segura River (Southeast of Spain): A Wetland of International Importance

2021

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The Ramsar Convention is an intergovernmental treaty for the conservation and wise use of wetlands, which establishes nine criteria related to natural values and a cultural one that wetlands must meet to be included in the list of wetlands of international importance. We aim to evaluate if the wetlands of the Vega Alta of the Segura River (southeast of Spain) meet the requirements to fulfil this agreement. Thanks to meticulous fieldwork and a bibliographic review related to the stated objective, we collected information on the existing environmental and cultural values. The results show that this set of wetlands is home to 11 species of threatened vertebrates in Spain, two priority habitats in the European Union, as well as cultural values related to their origin, conservation, and ecological functioning. Likewise, in the area there are archaeological sites, traditional uses of water associated with the cultivation of rice, and religious manifestations. Effective wetland inventories and rigorous analyzes of their ecological and environmental characteristics, as well as their socioeconomic functions, need to be carried out in order to improve their management and protection.This wetland certainly meets three criteria to be included in the Ramsar Convention list of wetlands.

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“…Elements such as these are factors that can influence the establishment of soil biogeochemical conditions (Chen and Ye, 2010;Gutiérrez et al, 2016). Also, the conditions of the sediment type are variables that affect the formation of mangroves (Acuña-Piedra and Quesada-Román, 2017;Guzmán-Sánchez et al, 2023).…”

Section: Spatial Distributionmentioning

confidence: 99%

IUCN Red List of Ecosystems, Mangroves of the Tropical East Pacific

Montes-Chaura,

Rangel-Ch,

Caicedo-García

et al. 2024

Preprint

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Mangroves of the Tropical East Pacific (TEP) province is a regional ecosystem subgroup (Level 4 unit of the IUCN Global Ecosystem Typology), present in the coastal ecoregions of the Mexican Tropical Pacific, Chiapas-Nicaragua, Nicoya, Panama Bight, and Guayaquil. In 2020, mangroves cover 7782 km2 in the province, representing 5.3% of the global coverage. In the province, there are eight true mangrove species; however, regional experts recognize other related plants classified as associated plants. The IUCN Red List includes 224 species (217 Animalia and seven Plantae species), supported by records in the Global Biodiversity Information Facility GBIF. It is estimated that the mangroves of the TEP showed a net change of -1.9% from 1996 to 2020; under this trend, a decrease of 3.3% is projected in 50 years, which is below 30%, classifying criterion A2 as least concern. However, based on indicative figures, a decrease of around 40% was estimated in the last 50 years (1970-2020); which as this exceeds 30%, the mangroves are vulnerable under Criterion A1. Although threats such as deforestation, human activities, pollution, infrastructure development, modification of natural systems, and invasion of exotic species are reported, none promote total disappearance; therefore, criteria B3 is classified as least concern. In a sea-level rise scenario (IPCC RCP8.5), ≈ 9.8% of the TEP mangroves would be submerged by 2060, which is below the 30% risk threshold for criterion C2. Furthermore, 1.5% of the province's mangrove is suffering degradation, with the potential to increase to 4.5% over 50-year period; this ranks the mangroves as least concern under criterion D2b. Overall, the Tropical East Pacific mangrove ecosystem was assessed as Vulnerable (VU) with the available information. It is considered that there is insufficient data to assess the other criteria, therefore, it is recommended to update the data to increase the precision of the evaluation and enable the quantitative analysis of risks.

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Cambios en el uso y cobertura de la tierra entre 1948 y 2012 en el Humedal Nacional Térraba-Sierpe, Costa Rica

Cited by 9 publications

References 3 publications

Inventario florístico en un bosque amenazado por la expansión agrícola en la reserva del Centro Turístico Los Chocuacos, Costa Rica

Inventario florístico en un bosque amenazado por la expansión agrícola en la reserva del Centro Turístico Los Chocuacos, Costa Rica

The Vega Alta of Segura River (Southeast of Spain): A Wetland of International Importance

IUCN Red List of Ecosystems, Mangroves of the Tropical East Pacific

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