Poás Volcano Biodiversity

Brenes, Frank González; Seas, Carolina; Barrientos, Zaidett; Quesada-Acuña, Sergio Gabriel; Amador, Raúl Alberto Mora

doi:10.1007/978-3-319-02156-0_13

Cited by 2 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to our study, the Sumaco vascular flora reaches 68 species of terrestrial vascular plants, a significantly higher amount than the previously reported 43 species and we observed several additional non-vascular species, including some lichens [27]. The most abundant species registered on the Sumaco are of Monticalia andicola (previously registered and referred to as Senecio andicola (Asteraceae), Disterigma codonanthum and Pernettya prostrata (Ericaceae), Cortaderia nitida (Poaceae), Huperzia hystrix (Lycopodiaceae), and Elaphoglossum dendricolum (Dryopteridaceae) [85,91,92]. Such species are common in other areas of the northern and central paramo of Ecuador, especially on active (A) (B) Correlating the migration on extra-Andean paramo, at the same latitude in the paramos of the cordillera real (Antisana Ecological Reserve, UTM code 17MRV24, VegParamo 2018), there are 13 species and 5 genera in common with the Sumaco Volcano, most of them being erect herbs.…”

Section: Diversity and Main Life Formmentioning

confidence: 54%

Plant Diversity and Composition Changes along an Altitudinal Gradient in the Isolated Volcano Sumaco in the Ecuadorian Amazon

et al. 2020

View full text Add to dashboard Cite

The paramo is a unique and severely threatened ecosystem scattered in the high northern Andes of South America. However, several further, extra-Andean paramos exist, of which a particular case is situated on the active volcano Sumaco, in the northwestern Amazon Basin of Ecuador. We have set an elevational gradient of 600 m (3200–3800 m a.s.l.) and sampled a total of 21 vegetation plots, using the phytosociological method. All vascular plants encountered were typified by their taxonomy, life form and phytogeographic origin. In order to determine if plots may be ensembled into vegetation units and understand what the main environmental factors shaping this pattern are, a non-metric multidimensional scaling (NMDS) analysis was performed. In addition, species turnover was quantified in order to appreciate the quantity and sort of species which are responsible for the similarity or dissimilarity between vegetation units. Therefore, a SIMPER similarity percentage analysis was conducted. We encountered 68 plant species belonging to 54 genera and 31 families, of which three are Ecuadorian endemics. The most frequent life forms were erect herbs, rosette and tussocks, whereas the least were cushions. At genus level, 44% of the Sumaco paramo flora was of tropical origin, followed by temperate (33%) and finally cosmopolitan (22%). The neotropical montane element was the most represented with 15 species, followed by the Austral-Antarctic with ten, wide temperate with another ten and cosmopolitan with seven. Regarding vegetation, four floristically distinct groups were segregated being lower gradient (3250–3500 m a.s.l.) and high altitude (3500–3800 m a.s.l.)

show abstract

Section: Diversity and Main Life Formmentioning

confidence: 54%

Plant Diversity and Composition Changes along an Altitudinal Gradient in the Isolated Volcano Sumaco in the Ecuadorian Amazon

et al. 2020

View full text Add to dashboard Cite

show abstract

Soundscape structure in forests surrounded by protected and productive areas in central Costa Rica

Izaguirre

Madrigal²

2023

Front. Remote Sens.

View full text Add to dashboard Cite

Ecosystems are under a multitude of pressures, including land-use change, overexploitation, pollution, and climate change. Most studies, resources, and conservation efforts are allocated to protected areas, while anthropogenic activities in their surroundings may affect them in ways that are poorly understood. We evaluated soundscape structure in forests surrounded by protected or productive areas in central Costa Rica. We sampled soundscapes in 91 recording sites in Grecia Forest Reserve and Poas Volcano National Park, and surrounding areas with productive activities (predominantly agricultural and urban). We classified sampling sites into three clusters according to landscape entropy, forest amount, and fragmentation surrounding recording points: more fragmented, more conserved, and intermediate. The conserved cluster showed higher acoustic diversity or entropy, but lower acoustic complexity, shorter duration of sounds in all frequency ranges, and lower amount of energy in the biological frequency bands than the fragmented cluster. We additionally found a positive significant relationship between the amount of forest and acoustic entropy or diversity indices, but a negative relationship with acoustic activity or energy indices. Indices, such as spectral and temporal entropy, the entropy of spectral variance, and total entropy, seemed to be a better fit than acoustic complexity and bioacoustic indices as indicators of habitat conservation in this study. Acoustic indices revealed that the surrounding matrices of protected areas have an impact on acoustic environments. We encourage researchers and decision-makers to carefully interpret acoustic indices when evaluating habitats showing a higher value in acoustic energy or activity because this might not necessarily reflect either a high level of biodiversity or habitat conservation. Also, we highlight the importance of preserving undisturbed forested matrices around protected areas, as they are important for maintaining acoustic diversity.

show abstract

Poás Volcano Biodiversity

Cited by 2 publications

References 4 publications

Plant Diversity and Composition Changes along an Altitudinal Gradient in the Isolated Volcano Sumaco in the Ecuadorian Amazon

Plant Diversity and Composition Changes along an Altitudinal Gradient in the Isolated Volcano Sumaco in the Ecuadorian Amazon

Soundscape structure in forests surrounded by protected and productive areas in central Costa Rica

Contact Info

Product

Resources

About