Constantin Cazacu

Constantin Cazacu
University of Bucharest | Unibuc · Department of Systems Ecology and Sustainability

PhD

About

59
Publications
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362
Citations

Publications

Publications (59)
Article
Full-text available
The output extracted from CNRM, MPR, and ICHEC Global Circulation Models for RCP 4.5 and RCP 8.5 Representative Concentration Pathways has been used in conjunction with the SWAT model for evaluating the impacts of future climate changes on hydrological processes in a Romanian catchment (Neajlov, 3720 km2 area) in the short (2021–2050) and long term...
Article
Full-text available
Assessing the environmental status of Protected Areas (PAs) is a challenging issue. To indicate that status, the identification of a common set of variables that are scientifically sound, and easy to assess and monitor by the PA practitioners, is particularly important. In this study, a set of 27 Essential Variables (EVs) for PA management was sele...
Article
Full-text available
p>Protected Area (PA) managers and policy makers need to determine and demonstrate the effectiveness of PA management and keep track of the conservation status in ways that are practical, scientifically sound and comparable among PAs in various terrestrial and aquatic environments. As most existing methods for measuring the managerial efficiency of...
Article
Full-text available
Stream and terrestrial ecosystems are intimately connected by riparian zones that support high biodiversity but are also vulnerable to human impacts. Landscape disturbances, overgrazing, and diffuse pollution of agrochemicals threaten riparian biodiversity and the delivery of ecosystem services in agricultural landscapes. We assessed how terrestria...
Article
Studies regarding species distribution, resilience and adaptability of different ecosystems as well as the response of human society are linked with our ability to identify past and predict future changes. Climate change together with other changes like land use and land cover, and invasive alien species, are important to set up the background for...
Article
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This paper serves as an introduction to the CROSSLINK project and highlights the potential for our study to help inform riparian management.
Article
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Researchers in multiple, related fields that address complex social and environmental challenges, have shown ongoing enthusiasm for applying transdisciplinary social-ecological systems (SES) research to promote sustainability. However, few studies have evaluated the effectiveness of SES approach, assessed its achievements, and identified challenges...
Conference Paper
Full-text available
In the following, we describe highly-automated image analysis approaches that help us classify satellite images, and allow us to monitor dynamical changes in image time series. We concentrated on flooding events within the Danube Delta as seen by the European Sentinel-1 and Sentinel-2 satellites, and describe systematic processing approaches to ext...
Article
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For many years, Protected Areas (PA) have been an important tool for conserving nature. Recently, also societal aspects have been introduced into PA management via the introduction of the Ecosystem Services (ES) approach. This review discusses the historical background of PAs, PA management, and the ES approach.We then discuss the relevance and app...
Technical Report
Full-text available
This Deliverable presents a toolbox for ecosystem service modelling and mapping with Bayesian Networks (BNs). It contains guidelines on how to develop BN models of ecosystem services and an online platform (gBay) where users can run these models with spatial data. BNs can be used to map ecosystem services, understand the associated uncertainties an...
Article
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Long-term ecological research (LTER) sites need a periodic assessment of the state of their ecosystems and services in order to monitor trends and prevent irreversible changes. The ecological integrity (EI) framework opens the door to evaluate any ecosystem in a comparable way, by measuring indicators on ecosystem structure and processes. Such an a...
Article
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The European Union (EU) Horizon 2020 Coordination and Support Action ESMERALDA aimed at developing guidance and a flexible methodology for Mapping and Assessment of Ecosystems and their Services (MAES) to support the EU member states in the implementation of the EU Biodiversity Strategy’s Target 2 Action 5. ESMERALDA’s key tasks included network cr...
Conference Paper
Full-text available
Stream-riparian networks comprise strongly-linked ecosystems that underpin landscape integrity. However, they are subject to multiple human uses and pressures that affect connectivity in these networks, driving biodiversity losses, threatening ecosystem services, and causing stakeholder conflicts. A range of approaches were promoted to understand h...
Technical Report
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The focus of this report is to present a broad framework for ecosystem services assessment and to test it. The framework aims to illustrate the integrated assessment cycle for practitioners. The framework also places within the other assessment activities, such as scenarios and assessing policies.
Technical Report
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Deliverable D3.3 EU Horizon 2020 ESMERALDA Project, Grant agreement No. 642007. The aims of The Report are: 1) to gather the latest knowledge of biophysical mapping and assessment of the ecosystem services, including methods, data, tools, and software commonly used; 2) based on the above findings, to suggest a harmonised methodology describing ho...
Conference Paper
Full-text available
The overall goal of this paper is to assess the potential of fully polarimetric SAR data for land-use mapping in the field of ecosystem monitoring. State of the art ecosystems' studies aim at integrating in-situ measurements acquired by smart sensor networks with Earth observation data analysis to ensure data quality services to multiple applicatio...
Book
Mapping ecosystem services edited by Page 2 Page 3 Mapping Ecosystem Services Page 4 Page 5 Mapping Ecosystem Services edited by Benjamin Burkhard & Joachim Maes Page 6 Citation: Burkhard B, Maes J (Eds.)(2017) Mapping Ecosystem Services. Pensoft Publishers, Sofia, 374 pp. First published 2017 ISBN 978-954-642-829-5 (Hardback) ISBN 978-954-642-852-...
Chapter
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Ecosystem services (ES) are the contributions of ecosystem structure and function (in combination with other inputs) to human well-being. This implies that mankind is strongly dependent on well-functioning ecosystems and natural capital that are the basis for a constant flow of ES from nature to society. Therefore, ES have the potential to become a...
Technical Report
Full-text available
The aim at this work was to identify in the frame of ECOPOTENTIAL a relevant list of data available at protected areas. The approach was focused on two directions, first was to identify the data sources providing ready to use data for remote sensing and modelling purposes and the second was to find specific data available or existing at the protect...
Conference Paper
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Current development model of socio-economic systems is based on the exploitation of natural resources provided by ecological systems. In the last century due to the industrial revolution, population growth and resource scarcity, an increasing anthropogenic pressure on the natural capitals bio-structure has been observed. The increasing need for nat...
Article
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The natural river floodplains support one of the most heterogeneous and species-rich landscapes. Wetlands are especially important for colonial waterbirds species providing ideal feeding, nesting and resting habitats for many species. Lower Danube River floodplain has changed dramatically in the past century as a result of hydro-technical works, in...
Conference Paper
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The development of socio-economic systems is dependent on natural resources. Resources are provided by natural and semi-natural ecosystems and often affected by human activities. The current work is located in Brăila Islands, a long term socio-ecological research site of approximately 2600 km2, using the approach of assessing landscape potential to...
Article
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We analysed yearly estimates of population size data during 2001-2012 for five carnivores species of conservation interest (Ursus arctos, Canis lupus, Lynx lynx, Felis silvestris and Canis aureus). Population size estimations were done by the game management authorities and integrated by the competent authorities on the Ministry of Environment and...
Conference Paper
Full-text available
In recent years, phenology has been proposed as an indicator to monitor systematically the state of the ecosystem and to detect changes triggered by perturbation of the environmental conditions. Recorded changes in the seasonal timing allowed to evaluate re-organizations of communities and drastic alterations of the ecosystem structure. The Europea...
Article
Full-text available
EU rural policy needs to address the dramatic changes that have taken place in the rural areas in the last two decades. In most rural regions the monofunctional role of the rural landscape as resource supply (i.e. agricultural and forestry sectors) has shifted to a multifunctional role, which includes other functions and sectors such as tourism, na...
Conference Paper
Full-text available
This article is dealing with the identification of the pristine state (reference system state, Vadineanu et al. 1997), taking into account the dynamics of relationship between macrophytes and plankton (phytoplankton and zooplankton) in the Lower Danube River System lakes.

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Projects

Projects (6)
Archived project
Proiectul vizează dezvoltarea competenţelor experţilor implicaţi în evaluarea datelor şi informaţiilor din fişele tehnice ale dosarelor de evaluare pentru substanţe şi produse chimice periculoase. www.ecologie.bio.unibuc.ro/proexpert
Project
The objective of ESMERALDA is to share experience through an active process of dialogue and knowledge co-creation that will enable participants to achieve the Action 5 aims. The mapping approach proposed will integrate biophysical, social and economic assessment techniques. Flexibility will be achieved by the creation of a tiered methodology that will encompass both simple (Tier 1) and more complex (Tier 3) approaches. The work will exploit expert- and land cover-based methods, existing ES indicator data and more complex ES models. As a result the outcomes will be applicable in different contexts. The strength of the ESMERALDA consortium lies in its ability to make solutions for mapping and assessment problems available to stakeholders from the start of the project, because our expertise allows us to build on existing research projects and data sharing systems.