scholarly journals Tracking the Causes of a Mass Fish Kill at a Mediterranean River within a Protected Area

Water ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 989
Author(s):  
Olga Petriki ◽  
Athina Patsia ◽  
Anthoula Vafeiadou ◽  
Ilias Tekidis ◽  
Panagiota Michalopoulou ◽  
...  
Keyword(s):  
Protected Area ◽  
National Park ◽  
Extreme Event ◽  
Fish Tissue ◽  
Fish Mortality ◽  
Fish Kill ◽  
Heavy Metal Concentrations ◽  
Mediterranean River ◽  
Hydroclimatic Factors ◽  
Source Of Pollution

In this study, an extreme event observed at the intermittent Mediterranean Bogdanas River within the territory of the protected area of the National Park of Lakes Koronia-Volvi and Macedonian Temp that led to a mass fish kill was investigated. We aimed to define the main pressures affecting water quality and biota, specifically fish. No organic poisons, pesticides or heavy metal concentrations were detected in fish tissue, while high values of BOD5, COD, TN and conductivity were measured in water samples. These results, combined with the prevailing hydroclimatic factors (high temperatures and low water flow), lead to the assumption that mass fish mortality was triggered by high organic loads discharged from an upstream point source of pollution, and in particular an active landfill.

Methods for Calculation of Annual and Extreme Overflow Events from Combined Sewer Systems

1984 ◽  
Vol 16 (8-9) ◽  
pp. 311-325 ◽  
Author(s):  
N B Johansen ◽  
P Harremoës ◽  
M Jensen
Keyword(s):  
Extreme Event ◽  
Short Term ◽  
Sewer Systems ◽  
Extreme Load ◽  
Combined Sewer ◽  
Receiving Waters ◽  
Water Problems ◽  
Source Of Pollution ◽  
Receiving Water

Overflow from combined systems constitute an increasing source of pollution of receiving waters, as compared to daily wastewater discharges which undergo treatment to a still higher extent. The receiving water problems from overflows are significant both in a long term scale (mean annual load) and in a short term scale (extreme event load). A method for computation of both annual and extreme load is presented. It is based on historical rain series and the use of a time-area model and simple pollutant mixing model in runoff calculation. Statistical calculations for both mean annual load and extreme events have been applied to the computed overflow series. Based on the computerized method simple manual calculations methods have been developed, resulting in graphs and tables for annual load and extreme load.

scholarly journals Estimating population sizes of lions Panthera leo and spotted hyaenas Crocuta crocuta in Uganda's savannah parks, using lure count methods

Oryx ◽  
2013 ◽  
Vol 48 (3) ◽  
pp. 394-401 ◽  
Author(s):  
Edward Okot Omoya ◽  
Tutilo Mudumba ◽  
Stephen T. Buckland ◽  
Paul Mulondo ◽  
Andrew J. Plumptre
Keyword(s):  
National Parks ◽  
Protected Area ◽  
National Park ◽  
Crocuta Crocuta ◽  
Panthera Leo ◽  
Analysis Method ◽  
Conservation Areas ◽  
Conservation Area ◽  
Population Sizes

AbstractDespite > 60 years of conservation in Uganda's national parks the populations of lions and spotted hyaenas in these areas have never been estimated using a census method. Estimates for some sites have been extrapolated to other protected areas and educated guesses have been made but there has been nothing more definitive. We used a lure count analysis method of call-up counts to estimate populations of the lion Panthera leo and spotted hyaena Crocuta crocuta in the parks where reasonable numbers of these species exist: Queen Elizabeth Protected Area, Murchison Falls Conservation Area and Kidepo Valley National Park. We estimated a total of 408 lions and 324 hyaenas for these three conservation areas. It is unlikely that other conservation areas in Uganda host > 10 lions or > 40 hyaenas. The Queen Elizabeth Protected Area had the largest populations of lions and hyaenas: 140 and 211, respectively. It is estimated that lion numbers have declined by 30% in this protected area since the late 1990s and there are increasing concerns for the long-term viability of both species in Uganda.

scholarly journals Re-discovering jaguar in remaining coastal Atlantic Forest in southeastern Brazil by non-invasive DNA analysis

2017 ◽  
Vol 17 (2) ◽  
Author(s):  
Andiara Silos Moraes de Castro Souza ◽  
Bruno Henrique Saranholi ◽  
Peter Gransden Crawshaw Jr. ◽  
Agustin Javier Paviolo ◽  
Lilian Elaine Rampim ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Protected Area ◽  
National Park ◽  
Dna Analysis ◽  
Southeastern Brazil ◽  
Top Predator ◽  
Resident Population ◽  
Serra Do Mar ◽  
Non Invasive ◽  
The Status

Abstract Jaguar populations have been declining in Brazil mostly due to habitat loss and fragmentation, conflict with humans, poaching and reduction of prey. This is dramatically true in the Atlantic Forest, where occurrence of this large felid is now restricted to very few remaining areas. We used a non-invasive DNA analysis to search through felid scats collected in the Santa Virginia Unit (SVU) of the Serra do Mar State Park, to test for the potential presence of jaguar there. Our results indicated at least three individuals (two females and one male) inside SVU, thus confirming at least temporary presence of this top predator in this important protected area. It is now crucial to intensify studies in that area and surroundings, to evaluate the status of these individuals and identify conservation needs to urgently improve the prospects for the establishment of a resident population, allowing it to expand to adjoining units of the Serra do Mar State Park and Serra da Bocaina National Park.

scholarly journals The genus Tristachya (Poaceae: Panicoideae) in Madagascar

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Maria S. Vorontsova ◽  
Nantenaina H. Rakotomalala
Keyword(s):  
Protected Area ◽  
National Park ◽  
New Combination ◽  
Distribution Map ◽  
Conservation Assessments ◽  
Rare Endemic ◽  
Common Components

SummaryWe present a revision of the three species of Tristachya in Madagascar. The tussock-forming T. betsileensis is a rare endemic of the quartz outcrops in the Itremo Protected Area. The rhizomatous T. isalensis and T. humbertii are common components of the sandstone outcrop vegetation in the Isalo National Park. A new combination is made. Descriptions, conservation assessments, illustrations, and a distribution map are presented.

scholarly journals Common Birds of Chitwan National Park, Nepal

2017 ◽  
Vol 1 (2) ◽  
pp. 19-26
Author(s):  
Parveen Kumar Jha
Keyword(s):  
Protected Area ◽  
National Park ◽  
Bird Species ◽  
Point Of View ◽  
Central Nepal ◽  
South Central ◽  
Tropical Vegetation ◽  
Chitwan National Park ◽  
Common Birds ◽  
Very High

 This research paper gives checklist of common birds of Chitwan National Park, which is a wild-life protected area in south-central Nepal. It covers tropical and sub-tropical vegetation. It is first protected area and includes 932 sq. km. Common birds observed are about 170 belonging to 48 Avian families during 2013-2014. Present investigator has very minutely observed birds in habitat conditions. Bird species were recognized by very high binocular. Birds were thoroughly studied from point of view of Taxonomy. Machans were also erected for observing birds.

scholarly journals Governança ambiental e turismo no Parque Nacional da Amazônia

2016 ◽  
Vol 9 (2) ◽  
Author(s):  
Mônica de Nazaré Ferreira Araújo ◽  
Ligia Terezinha Lopes Simonian
Keyword(s):  
Protected Area ◽  
National Park ◽  
Environmental Governance ◽  
Institutional Arrangement ◽  
Advisory Board ◽  
Collective Actions ◽  
Governance Process

Este artigo propõe apresentar e discutir o processo de governança ambiental do Parque Nacional da Amazônia, a ter como foco de análise as entrevistas realizadas com os membros do conselho consultivo desta Unidade de Conservação, arranjo institucional de participação da sociedade na sua gestão. Discute-se ainda as ações coletivas de turismo empreendidas no parque, bem como a formação do conselho, os problemas enfrentados por este com relação ao parque e a atualidade da gestão. Apresenta-se como principal resultado da desarticulação do conselho o anúncio da construção do Complexo Hidrelétrico do Tapajós e como consequência um estado de (des)governança. Environmental governance and tourism in Amazon National Park ABSTRACT This article presents and discusses the environmental governance process of the Amazon National Park, to be focused on analysis of interviews with members of the advisory board of this protected area, institutional arrangement of society participation in its management. It is also discussed collective actions tourism undertaken in the park as well as the formation of the Council the problems faced by this relationship with the park and the present management. It presents as main result of the dismantling of the board construction announcement Tapajós Hydroelectric Complex and result in a state of (un) governance. KEYWORDS: Environmental Governance; Tourism; Collective Active.

scholarly journals Estimating abundance of the Endangered onager Equus hemionus onager in Qatruiyeh National Park, Iran

Oryx ◽  
2013 ◽  
Vol 47 (2) ◽  
pp. 266-272 ◽  
Author(s):  
Mahmoud-Reza Hemami ◽  
Moslem Momeni
Keyword(s):  
Growth Rate ◽  
Protected Area ◽  
National Park ◽  
Natural Populations ◽  
Distance Sampling ◽  
Line Transect ◽  
Management Interventions ◽  
Equus Hemionus ◽  
Wild Ass ◽  
Semi Arid

AbstractHistorically, the onager or Persian wild ass Equus hemionus onager, endemic to Iran, was widespread on the arid and semi-arid central steppes but only two natural populations remain. We estimated the population density of the onager in Qatruiyeh National Park using line transect distance sampling. Transects were surveyed on three plains in the Park and the results compared with total counts conducted by the Department of Environment. Our estimate (109 onagers per 100 km2; 95% confidence interval 67–179) is similar to that obtained by the total counts (137 onagers per 100 km2). Distance sampling is therefore a promising method for estimating the abundance of the onager. Using the annual censuses performed by the Department of Environment over the last 13 years we estimated that the population has a growth rate of 0.09. During the same period the onager population in the Touran Protected Complex has experienced a severe decline. The high density of onagers within the National Park indicates the unsuitability of adjacent habitats, including Bahram-e-Goor Protected Area, for this species. Lack of sufficient security and poorly distributed water sources appear to be the main reasons discouraging onagers from entering the Bahram-e-Goor Protected Area. We recommend and describe management interventions that could potentially assist in maintaining the last surviving onager populations in Iran.

What are tourists willing to pay for securing the survival of a flagship species? The case of protection of the Ethiopian wolf

2019 ◽  
pp. 135481661988043 ◽  
Author(s):  
Tafesse Estifanos ◽  
Maksym Polyakov ◽  
Ram Pandit ◽  
Atakelty Hailu ◽  
Michael Burton
Keyword(s):  
Protected Area ◽  
Choice Experiment ◽  
National Park ◽  
Prior Experience ◽  
Random Parameter ◽  
Wolf Population ◽  
Existence Value ◽  
Random Parameter Logit ◽  
Unique Species ◽  
Random Parameter Logit Model

Ecotourism can be an important tool for protecting biodiversity in developing countries. Tourists have preferences for viewing charismatic species and for their conservation, but our understanding of these preferences remains limited. Using choice experiment surveys, we investigate tourists’ preferences and willingness to pay (WTP) for the protection of the Ethiopian wolf ( Canis simensis) in Ethiopia’s Bale Mountains National Park. Results from a random parameter logit model show that tourists were willing to pay up to US$5.82/day/trip for increasing the wolf population from 200 to a more viable number of 250 but very little for a more substantial increase. Tourists also valued increases in the size of the protected area (PA) and access to the wolf habitat. The WTP is found to be dependent on tourists’ prior experience to Ethiopian PAs and whether they had viewed other unique species in the park. The findings suggest opportunities for ecotourism to support the Ethiopian wolf, which is in a critical state, and that the primary motivation for tourists’ support might be due to the wolf’s existence value.

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