Search results for " PARK"
showing 10 items of 355 documents
Abundance and Distribution Patterns of Thunnus albacares in Isla del Coco National Park through Predictive Habitat Suitability Models
2016
Information on the distribution and habitat preferences of ecologically and commercially important species is essential for their management and protection. This is especially important as climate change, pollution, and overfishing change the structure and functioning of pelagic ecosystems. In this study, we used Bayesian hierarchical spatial-temporal models to map the Essential Fish Habitats of the Yellowfin tuna (Thunnus albacares) in the waters around Isla del Coco National Park, Pacific Costa Rica, based on independent underwater observations from 1993 to 2013. We assessed if observed changes in the distribution and abundance of this species are related with habitat characteristics, fis…
Skrejvaboļu (Coleoptera, Carabidae) sabiedrības sausos kaļķainos zālājos un tās ietekmējošie faktori Abavas senlejā
2016
Kā Eiropā tā Latvijā sausu, kaļķainu zālāju platības ar katru gadu samazinās. Šis biotops ir viens no sugām bagātākajiem, tomēr uzskatāms par Latvijā izzūdošu, jo aizņem vairs tikai 0,05% no valsts teritorijas (Auniņš 2013). Šī darba mērķis ir noskaidrot zālāju apsaimniekošanas un botāniskās kvalitātes ietekmi uz skrejvaboļu (Carabidae) sabiedrībām sausos, kaļķainos zālājos. Pētījums veikts sausos, kaļķainos zālājos, dabas parka “Abavas senleja” posmā starp Kandavas un Sabiles pilsētām. Septiņpadsmit parauglaukumos, kas iedalīti atšķirīgās botāniskās kvalitātes un apsaimniekošanas veida grupās, ar Bārbera tipa augsnes lamatām, ievākti kvantitatīvi dati par skrejvaboļu sastopamību. Noteikts …
Wild brown trout affected by historical mining in the Cévennes national park, France.
2011
8 pages; International audience; In the protected area of the Cévennes National Park (Southern France), 114 wild brown trout (Salmo trutta fario) were captured at six locations affected to different extents by historical mining and metallurgy dating from the Iron Age to Modern Times. Cadmium and lead in trout livers and muscles reflect high sediment contamination, although an age-related effect was also detected for hepatic metal concentrations. Lead isotope signatures confirm exposure to drainage from mining and metallurgical waste. Developmental instability, assessed by fluctuating asymmetry, is significantly correlated with cadmium and lead concentrations in trout tissues, suggesting th…
Monumental trees and their existence value: the case study of an Italian natural park
2015
The paper deals with the evaluation of the existence value of monumental trees in a protected area. Financial resources to be destined for protection interventions have been decreasing more and more, with a high risk of losing this natural heritage. A Contingent Valuation Method (CVM) survey was carried out among the Madonie Park (Sicily, Italy) resident households to evaluate the existence value of monumental trees of the nature trail named "Piano Sempria-Piano Pomo", represented by a population of "Giant hollies" and by 7 other individual trees. These are the main results of the CVM survey: the overall response rate was 40%, individual average WTPs ( Willingness To Pay ) were €12.37 for t…
Illegal fishing in Isla del Coco National Park: Spatial-temporal distribution and the economic trade-offs
2020
Abstract The Isla del Coco National Park, located on the Pacific coast of Costa Rica, is rich in biodiversity and has a high concentration of pelagic species. This high marine biodiversity makes the Isla del Coco National Park (PNIC) a very attractive place for illegal fishers. We analyzed a dataset covering 8 years (2003–2010) of patrol records from PNIC with the aim of determining, a) the spatial-temporal distribution of illegal fishing, b) other areas that could be prone to illegal fishing but are currently undetected, c) the most profitable areas for this activity and d) the economic trade-offs of this illegal activity in relation to potential gains and the costs. Residuals Autocovariat…
Predictive habitat suitability models to aid the conservation of elasmobranchs in Isla del Coco National Park (Costa Rica)
2021
Abstract Worldwide there is increasing concern for elasmobranch species given that their biological and ecological characteristics make them highly vulnerable to fishing pressure. The disappearance of these species could affect the structure and function of marine ecosystems, which would induce changes in trophic interactions at the community level. For effective conservation and management of elasmobranchs detailed knowledge of their habitat preferences is essential. Yet, there is a poor understanding of their spatial ecology. Isla del Coco National Park is an oceanic island in Pacific Costa Rica and renowned for being a sanctuary for migratory pelagic species, such as elasmobranchs and ot…
Insights Into the Mechanisms of Phreatic Eruptions From Continuous High Frequency Volcanic Gas Monitoring: Rincón de la Vieja Volcano, Costa Rica
2019
OVSICORI Understanding the trigger mechanisms of phreatic eruptions is key to mitigating the effects of these hazardous but poorly forecastable volcanic events. It has recently been established that high-rate volcanic gas observations are potentially very suitable to identifying the source processes driving phreatic eruptions, and to eventually detecting precursory changes prior to individual phreatic blasts. In February-May 2017, we deployed a Multi-GAS instrument to continuously monitor gas concentrations in the crater lake plume of Rincón de la Vieja, a remote and poorly monitored active volcano in Costa Rica, site of frequent phreatic/phreatomagmatic eruptions. Forty-two phreatic/phreat…
Medicinal and useful plants in the tradition of Rotonda, Pollino National Park, Southern Italy.
2013
Abstract Background This paper reports an ethnobotanical survey of the traditional uses of medicinal and useful plants in an area of the Pollino National Park, Basilicata, Southern Italy. The study, conducted between 2009 and 2010, gathered information on the medicinal plants traditionally used in the neighbourhood of town of Rotonda, in the Pollino National Park, that appears have very rich and interesting ethnopharmacological traditions. Methods In all, we interviewed 120 key informants, whose age ranged between 50 and 95 years. Results The research resulted to the identification of 78 medicinal plants belonging to 46 families. Among the species reported, 59 are used in human medicine, 18…
Critical Theme Parks : Dismaland, Disney, and the Politics of Theming
2017
AbstractThis essay discusses Banksy’s 2015 installation ‘Dismaland’ and identifies it as belonging to a new subgenre of theme parks: the critical theme park. Whereas immersive spaces have increasin...
Nowe dla Niziny Mazowieckiej i rzadkie gatunki ryjkowcowatych (Coleoptera: Curculionidae) z Kampinoskiego Parku Narodowego
2013
New data on the occurrence of 16 weevil species from the Kampinos National Park are presented, of which 7 species are recorded from the Mazovia Lowland for the first time. Among them two, Otiorhynchus repletus BOHEMAN and Larinus sturnus (SCHALLER) figure in the "Polish Red List".