Detecting Barriers Between Protected Areas to Restore Ecological Connectivity

2021 ◽  
Vol 11 (2) ◽  
pp. 355-369
Author(s):  
Huriye Simten SÜTÜNÇ
2012 ◽  
Vol 10 (4) ◽  
pp. 75-96
Author(s):  
Piotr Matyjasiak

The aim of this paper is (i) to review the method of valorization of natural resources as applied in the environmental impact assessment, and (ii) to develop recommendations on how valorization expertise should be prepared in order to be comprehensive and transparent. Valorization is the proper time to carry out identi>cation of the possible negative environmental impacts and damages of a planned project. It is recommended to perform valorization due to the state (numbers) and functions (quality) of natural resources. This approach is related to the concept of environmental damage, which is defined as a measurable adverse change in a natural resource or measurable impairment of a natural resource service (which means the functions performed by a natural resource for the benefit of another natural resource or the public). Valorization of natural resources should include an assessment of potential environmental damage, including an impact on the local biodiversity, the ecological connectivity, the N2000 network, and the legally protected areas. The valorization of natural resources should be performed at the following thematic levels focusing on the role of the area under consideration due to: (1) the implementation of the objectives of protection of Nature 2000 network and its overall coherence, (2) the implementation of the objectives of protection of legally protected areas other than N2000, (3) the maintenance of the ecological connectivity in a context other than the coherence of Nature 2000 network, (4) the maintenance of species and natural habitats with favorable conservation status, (5) the conservation of species and natural habitat types that are not legally protected.


Author(s):  
Agata Pawłat-Zawrzykraj ◽  
Maciej Brzank

Abstract Maintaining ecological connectivity is crucial especially for protected areas located in proximity of a large city. That sort of areas are threatened by urban sprawl which cause natural and semi-natural area loss, landscape fragmentation and isolation. Ecosystem services and biological diversity could be maintained by linking not yet protected areas and treat them as a part of ecological network. The Chojnowski Landscape Park is an example of such protected area which is located in the functional zone of Warsaw. The scope of the study was to delimitate potential ecological corridors linking the Chojnowski Landscape Park with other core areas, assess their functionality and point spots endangered by the ecological connectivity loss. Data from national institutions and the Corine land cover 2012 were used to make GIS analyses. Application of buffering and re-buffering methods allowed to indicate potential expansion zones and helped to delimitate ecological corridors linking the Chojnowski Landscape Park with surrounding landscape parks and national ecological corridors. The strongest and the most numerous connections were indicated towards Mazowiecki Landscape Park. Other potential ecological corridors were assessed as highly endangered, mostly because of infrastructural barriers. Despite the existence of areas of landscape protection as another form of the nature conservation of terrains located between parks, law regulations allow to efficiently protect only the ecological corridors along river valleys. The local spatial planning actions are needed, because that will be the most efficient way of preserving ecological corridors of Chojnowski Landscape Park.


2018 ◽  
Author(s):  
Remi M Daigle ◽  
Anna Metaxas ◽  
Arieanna Balbar ◽  
Jennifer McGowan ◽  
Eric A Treml ◽  
...  

Globally, protected areas are being established to protect biodiversity and to promote ecosystem resilience. The typical spatial conservation planning process leading to the creation of these protected areas focuses on representation and replication of ecological features, often using decision support systems such as Marxan. Unfortunately, Marxan currently requires manual input or specialised scripts to explicitly consider ecological connectivity, a property critical to metapopulation persistence and resilience. "Marxan Connect" is a new open source, open access Graphical User Interface (GUI) designed to assist conservation planners in the systematic operationalization of ecological connectivity in protected area network planning. Marxan Connect is able to incorporate estimates of demographic connectivity (e.g. derived from tracking data, dispersal models, or genetics) or structural landscape connectivity (e.g. isolation by resistance). This is accomplished by calculating metapopulation-relevant connectivity metrics (e.g. eigenvector centrality) and treating those as conservation features, or using the connectivity data as a spatial dependency amongst sites to be included in the prioritization process. Marxan Connect allows a wide group of users to incorporate directional ecological connectivity into conservation plans. The least-cost conservation solutions provided by Marxan Connect, combined with ecologically relevant post-hoc testing, are more likely to support persistent and resilient metapopulations (e.g. fish stocks) and provide better protection for biodiversity than if connectivity is ignored.


2021 ◽  
Vol 211 ◽  
pp. 105776
Author(s):  
Sarah K. Friesen ◽  
Emily Rubidge ◽  
Rebecca Martone ◽  
Karen L. Hunter ◽  
M. Angelica Peña ◽  
...  

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
AFSHAN ANJUM BABA ◽  
SYED NASEEM UL-ZAFAR GEELANI ◽  
ISHRAT SALEEM ◽  
MOHIT HUSAIN ◽  
PERVEZ AHMAD KHAN ◽  
...  

The plant biomass for protected areas was maximum in summer (1221.56 g/m2) and minimum in winter (290.62 g/m2) as against grazed areas having maximum value 590.81 g/m2 in autumn and minimum 183.75 g/m2 in winter. Study revealed that at Protected site (Kanidajan) the above ground biomass ranged was from a minimum (1.11 t ha-1) in the spring season to a maximum (4.58 t ha-1) in the summer season while at Grazed site (Yousmarag), the aboveground biomass varied from a minimum (0.54 t ha-1) in the spring season to a maximum of 1.48 t ha-1 in summer seasonandat Seed sown site (Badipora), the lowest value of aboveground biomass obtained was 4.46 t ha-1 in spring while as the highest (7.98 t ha-1) was obtained in summer.


2016 ◽  
Vol 548 ◽  
pp. 263-275 ◽  
Author(s):  
RE Lindsay ◽  
R Constantine ◽  
J Robbins ◽  
DK Mattila ◽  
A Tagarino ◽  
...  

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