Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Isabel Mendes is active.

Publication


Featured researches published by Isabel Mendes.


Environmental Management | 2011

Measuring the Social Recreation Per-Day Net Benefit of the Wildlife Amenities of a National Park: A Count-Data Travel-Cost Approach

Isabel Mendes; Isabel Proença

In this article, we apply count-data travel-cost methods to a truncated sample of visitors to estimate the Peneda-Gerês National Park (PGNP) average consumer surplus (CS) for each day of visit. The measurement of recreation demand is highly specific because it is calculated by number of days of stay per visit. We therefore propose the application of altered truncated count-data models or truncated count-data models on grouped data to estimate a single, on-site individual recreation demand function, with the price (cost) of each recreation day per trip equal to out-of-pocket and time travel plus out-of-pocket and on-site time costs. We further check the sensitivity of coefficient estimations to alternative models and analyse the welfare measure precision by using the delta and simulation methods by Creel and Loomis. With simulated limits, CS is estimated to be €194 (range €116 to €448). This information is of use in the quest to improve government policy and PNPG management and conservation as well as promote nature-based tourism. To our knowledge, this is the first attempt to measure the average recreation net benefits of each day of stay generated by a national park by using truncated altered and truncated grouped count-data travel-cost models based on observing the individual number of days of stay.


Archive | 2012

Economic Valuation as a Framework Incentive to Enforce Conservation

Isabel Mendes

A Protected Area (PA) is an “area of land and/or sea especially dedicated to the protection and maintenance of biological diversity, and of natural and associated cultural resources, and managed through legal or other effective means” [1]. In this paper biological diversity means “...the dynamic network of biological, chemical, and physical interactions that sustain a community and allow it to respond to changes in environmental conditions” (in [2], p. 41). Consequently PA means biological diversity conservation, or ecosystem conservation as a whole, with their geographical, biological and different types of resilience to different types of human activities resulting pressures. By adopting this definition we will be following the Subsidiary Body on Scientific, Technical and Technological Advice of the Conference of the Parties to the Convention on Biological Diversity that indicates the importance of looking at biodiversity conservation under an ecosystem approach rather than focusing on the individual components within the ecosystems.


WIT Transactions on Ecology and the Environment | 2010

The REHMINE research project: the threefold value of São Domingos abandoned mine rehabilitation in southern Portugal

I. Dias Sardinha; J. Carolino; Isabel Mendes; P. Verga Matos

Although rehabilitation of brownfields is an expensive undertaking, it can also be seen as a valuable initiative for promoting both local and global sustainable socioeconomic development. As such, it can go beyond law-abiding practices in general, and become a domain of corporate or governmental social responsibility. The success of this kind of initiatives depends on the commitment of local authorities and other stakeholders, as well as from an understanding of the intrinsic environmental, social and economic value created. In Portugal, the state granted to EDM the concession to design and implement environmental rehabilitation projects and to promote the socio-economic enhancement of areas spoiled by earlier mining. This paper presents the REHMINE research project aiming the designing of a conceptual and methodological framework for establishing the threefold value induced by EDM’s intervention at the Portuguese Sao Domingos abandoned mine. Through a multidisciplinary approach, the project will apply environmental, social and economic valuation methods, namely Life Cycle Assessment, Landscape Ethnography, Contingent Analysis and Multi Criteria Analysis to the value induced of mine rehabilitation in an integrated way.


Tourism Economics | 2017

Segmenting visitors based on willingness to pay for recreational benefits: The case of Leiria National Forest

Fernanda Oliveira; Pedro Pintassilgo; Patrícia Pinto; Isabel Mendes; João Albino Silva

This article uses a criterion-based method to segment visitors in the context of a contingent valuation survey. The National Forest of Leiria, located in central Portugal, is used as case study. Respondents are assigned to segments through a chi-squared automatic interaction detector method according to their willingness to pay for recreational improvements. This method identifies the main socio-economic and behavioural variables that differentiate the segments. The results show that the segment with the largest willingness to pay is formed by visitors who contribute to environmental protection and rate their recreational experience in the forest as very good. Besides these ‘environmentally friendly’ visitors, two other segments show willingness to pay above average: ‘graduates’ and ‘forest neighbours’. The study shows how the rich set of data provided by contingent valuation studies can be used to segment visitors, and therefore to support the planning and management of recreational facilities.


Social Science Research Network | 2016

Assessing the Values of Archaeological Heritage

Isabel Mendes

The main aim of this paper involves contributing to the discussion around the value of archaeological heritage through the lens of an economist. The path taken to achieve this main goal included three objectives. Firstly, there is the contribution towards clarifying the concept of archaeological heritage benefits by highlighting the complexity that stems directly from its holistic characteristic. Secondly, this also contributes to assessments of archaeological heritage economic and social benefits and values by demonstrating how they may be captured by means of a single variable measured in monetary units. Furthermore, and thirdly, this then helps explain how such a monetary variable may prove of use both to cultural heritage management for sustainable preservation and conservation improvement, and to the appraisal of the total private and public benefits arising out of preservation and conservation archaeologic heritage programs. Key Words – Archaeological Heritage; Multi Values; Market and Non-Market Benefits;Valuation; Preference-Based Methods.


Forest Policy and Economics | 2010

A theoretical economic model for choosing efficient wildfire suppression strategies

Isabel Mendes


Environmental Research, Engineering and Management | 2003

Pricing Recreation use of National Parks for an efficient Nature Conservation and Application to the Portuguese case

Isabel Mendes


European Environment | 2003

Pricing recreation use of national parks for more efficient nature conservation: an application to the Portuguese case

Isabel Mendes


Archive | 2005

Estimating the Recreation Value of Ecosystems by Using a Travel Cost Method Approach

Isabel Mendes; Isabel Proença


Archive | 2004

Valuing ecosystems : a methodological applying approach

Isabel Mendes

Collaboration


Dive into the Isabel Mendes's collaboration.

Top Co-Authors

Avatar

Isabel Proença

Technical University of Lisbon

View shared research outputs
Top Co-Authors

Avatar

Fernanda Oliveira

Polytechnic Institute of Leiria

View shared research outputs
Top Co-Authors

Avatar

Idalina Dias Sardinha

Technical University of Lisbon

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Patrícia Pinto

University of the Algarve

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Sérgio Milheiras

Technical University of Lisbon

View shared research outputs
Researchain Logo
Decentralizing Knowledge