Measuring landscape integrity (LI): development of a hybrid methodology for planning applications

Perkl, Ryan M.

doi:10.1080/09640568.2016.1142863

Cited by 16 publications

(10 citation statements)

References 40 publications

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“…The fuzzy sum is an increasive function that assumes the contribution of a given factor decreases as values from other stressors co‐occur. This approach ensures that HM c values are at least as large as the largest stressor indicator value, but that the additional contribution of a given indicator decreases as values from other indicators overlap, and ultimately converge to 1.00 (regardless of the number of stressors), thereby supporting the principle of parsimony and calibrating landscape impacts as a continuous gradient that better capture real‐world patterns and conditions (Perkl, ). Aggregating individual factors for the mapping of landscape integrity or human modification through the fuzzy sum formula has seen increased use (Bui, Pradhan, Lofman, Revhaug, & Dick, ; Perkl, ) since its mainstream introduction (Malczewski, ).…”

Section: Methodsmentioning

confidence: 98%

“…Similar to other global threat datasets, it was designed to assess macro‐ecological patterns resulting from human stressors at broad spatial extents (e.g., across countries, ecoregions, biomes as done in our analysis and others) (Geldmann et al, ; Halpern et al, ; Venter et al, ). It can also be used to prioritize where more refined landscape assessments are needed to evaluate resource condition, spatial structure, and connectivity (Dickson et al, ; McGuire, Lawler, Mcrae, Nuñez, & Theobald, ; Perkl, ). Our analytic approach offers a repeatable, consistent, and transparent method that can be readily adapted using more detailed and finer‐scale datasets for land use planning (Theobald, Monahan, et al, ; Theobald, Zachmann, et al, ).…”

Section: Methodsmentioning

confidence: 99%

“…Similar to other global threat datasets, it was designed to assess macro-ecological patterns resulting from human stressors at broad spatial extents (e.g., across countries, ecoregions, biomes as done in our analysis and others) (Geldmann et al, 2014;Halpern et al, 2008;Venter et al, 2016). It can also be used to prioritize where more refined landscape assessments are needed to evaluate resource condition, spatial structure, and connectivity (Dickson et al, 2017;McGuire, Lawler, Mcrae, Nuñez, & Theobald, 2016;Perkl, 2017).…”

Section: Data Availabilitymentioning

confidence: 99%

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Managing the middle: A shift in conservation priorities based on the global human modification gradient

Kennedy

Oakleaf

Theobald

et al. 2019

Global Change Biology

499

428

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An increasing number of international initiatives aim to reconcile development with conservation. Crucial to successful implementation of these initiatives is a comprehensive understanding of the current ecological condition of landscapes and their spatial distributions. Here, we provide a cumulative measure of human modification of terrestrial lands based on modeling the physical extents of 13 anthropogenic stressors and their estimated impacts using spatially explicit global datasets with a median year of 2016. We quantified the degree of land modification and the amount and spatial configuration of low modified lands (i.e., natural areas relatively free from human alteration) across all ecoregions and biomes. We identified that fewer unmodified lands remain than previously reported and that most of the world is in a state of intermediate modification, with 52% of ecoregions classified as moderately modified. Given that these moderately modified ecoregions fall within critical land use thresholds, we propose that they warrant elevated attention and require proactive spatial planning to maintain biodiversity and ecosystem function before important environmental values are lost.

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Section: Methodsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Data Availabilitymentioning

confidence: 99%

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Managing the middle: A shift in conservation priorities based on the global human modification gradient

Kennedy

Oakleaf

Theobald

et al. 2019

Global Change Biology

499

428

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“…It has been used as a conservation value and as a descriptor of the state of a landscape [6][7][8]. The concept's definition is based on the type of vegetation and its structure, including invasive species and landscape integrity [9,10]. The concept of a natural landscape (understood as a geological landform [11] that has only been slightly transformed by humans and is not an urban or industrial site [12,13], a native, natural, or cultural landscape [14], or a landscape that is not used or is used to some extent economically [15][16][17]) is not the same as the concept of the naturalness of a landscape [18], which may be determined by various criteria that broaden the conceptual scope of a natural landscape [19][20][21].…”

Section: Naturalness Of the Landscapementioning

confidence: 99%

The Naturalness of the Vistula Riverbank’s Landscape: Warsaw Inhabitants’ Perceptions

Wojnowska-Heciak

2019

Sustainability

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This paper considers the issue of urban inhabitants’ appreciation of the naturalness of the landscape provided that people living in urban areas can benefit from the green space and would like to care more about its protection. This study examines: (1) Warsaw inhabitants’ preferences with regard to places to spend free time outdoors; (2) public perception of the advantages and disadvantages of the semi-natural Vistula riverfront; and (3) people’s connectedness to nature and willingness to donate funds to modernize the riverfront (N = 630). We applied a questionnaire method based on the computer-assisted web interview. The findings suggest that Warsaw residents appreciate the naturalness of the landscape at the Vistula riverfront, would not like to take direct responsibility for its condition, and would rather the municipality invest in public spaces. Therefore, the municipality of Warsaw should work to enhance inhabitants’ attachment to the place and build a sense of common responsibility for the protection of the riverfront’s natural environment.

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“…The resistance layers of land use and cover in 1995, 2000, 2005, and 2010 were created separately with the same process. Tidal flats, estuary 0 Carroll, 2005;Saunders et al, 2002;Theobald, 2003;Theobald, 2010;Woolmer et al, 2008;Perkl, 2017…”

Section: Human Land Use and Cover Changementioning

confidence: 99%

Early warning signals for landscape connectivity and resilient conservation solutions

Yin

2018

Land Degrad Dev

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The ever‐increasing and unprecedented impacts of human activities on natural landscapes are dramatically altering the heterogeneity of habitats and biodiversity. We developed a holistic resilience‐based framework to identify the early warning points of climate‐gradient landscape connectivity; the results offer the first map capable of providing information about landscape connectivity in the coastal provinces of mainland China. The results show that only 24% of natural/seminatural lands retained sufficient connectivity, which is considered to be high‐quality patches for animals to move through temperature gradient corridors. Moreover, the critical junctions, such as the tipping points and early warning points of landscape connectivity, were mainly detected in seminatural lands (forests and grasslands). Increasing connections in these seminatural lands initiated the permeability of landscape connectivity in coastal areas, which are essential for accessing suitable habitats with low temperatures. By connecting fragmented patches into a landscape network, the transition zones in seminatural lands highlight priority locations for ecologists and conservation managers as natural solutions to configure the most effective conservation areas.

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Measuring landscape integrity (LI): development of a hybrid methodology for planning applications

Cited by 16 publications

References 40 publications

Managing the middle: A shift in conservation priorities based on the global human modification gradient

Managing the middle: A shift in conservation priorities based on the global human modification gradient

The Naturalness of the Vistula Riverbank’s Landscape: Warsaw Inhabitants’ Perceptions

Early warning signals for landscape connectivity and resilient conservation solutions

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