Evaluating forest fragmentation and its tree community composition in the tropical rain forest of Southern Western Ghats (India) from 1973 to 2004

Amarnath, Giriraj; Murthy, M. Krishna; Beierkuhnlein, Carl

doi:10.1007/s10661-008-0724-5

Cited by 16 publications

(3 citation statements)

References 71 publications

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“…The fragmented or small patchy or isolated forests are also resulted by the conversion of intact forest area into agricultural land [49,50]. Habitat fragmentation is becoming the major biodiversity loss globally that brings about changes in biological and physical changes in the forest community [51,52].…”

Section: Forest Fragmentationmentioning

confidence: 99%

Conceptualizing Different Forest Degradation Drivers with Special Reference to India

Punia

Jakhar²

2022

IJECC

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Forest deterioration has been a global issue in the 21st century as one of the most serious environmental issues. The costs of forests degradation is in reducing productivity and natural resources such as water, land, grassland etc. Deforestation affects the whole globe but it is of main concern of developing countries of the Tropics. Forest deterioration and deforestation are caused by a variety of factors that vary depending on the location. The main aim of the review is to analyse various forest degradation drivers and to establish keys to estimate the level of degradation. The various direct and indirect drivers of forest degradation are excessive mining, selective logging, population explosion, climatic-change, forest fires, biological invasion, agricultural land expansion and weak forest administration. One sort of sustainability in a managed forest is the system of several landowners, each with a modest multifunctional, multispecies plot. Other plan for sustainable development is eco-development programme, which is inter and multi-stakeholder method for connecting the conservation benefits of protected areas with community people's livelihoods and development practices in the environments around them. A shift toward whole-landscape management is required, with a focus on places with high levels of usage mixed with areas principally maintained for conservation, recreation, and water catchment. Some guidelines are being created, but more interactions between ecologists, foresters, social scientists, and economists are urgently needed.

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Section: Forest Fragmentationmentioning

confidence: 99%

Conceptualizing Different Forest Degradation Drivers with Special Reference to India

Punia

Jakhar²

2022

IJECC

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“…The Western Ghats in India also provides an illustrative example of dynamism in species composition over long-time scales in a fragmented landscape. This region exhibits high levels of forest fragmentation due to heavy pressure to support agricultural activities (Giriraj et al, 2010), which is a common reality across tropical forest regions (Karanth and DeFries, 2010). Using paleoecological data obtained from four small forests fragments (∼5 ha) in a coffee (Coffea arabica) agroforestry landscape in Karnataka, India, it was possible to reconstruct 7,500 years of vegetation dynamics (Figure 3, Studies A and G-I).…”

Section: What Does the Paleoecological Record Suggest?mentioning

confidence: 99%

Combining Contemporary and Paleoecological Perspectives for Estimating Forest Resilience

Morel

Nogué

2019

Front. For. Glob. Change

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In the face of dramatic climate change and human pressure acting on remaining forest areas across tropical, temperate and boreal biomes, there has emerged a coordinated effort to identify and protect forests that are currently considered "intact". These forests are hypothesized to be more resilient to future abiotic perturbations than fragmented or degraded forests, and therefore, will provide more reliable carbon storage and/or biodiversity services into an uncertain future. Research in the fields of contemporary and paleoecology can offer valuable insights to enhance our ability to assess resilience of forests and whether these would be comparable across forest biomes. Contemporary ecological monitoring has been able to capture processes acting over the short-to-medium term, while paleoecological methods allow us to derive insights of the long-term processes affecting forest dynamics. Recent efforts to both identify intact forests, based on area definitions, and assess vegetation climate sensitivity globally have relied on satellite imagery analysis for the time period 2000-2013. In this paper, we compare these published datasets and do find that on average intact forests in boreal and tropical biomes are less sensitive to temperature and water availability, respectively; however, the patterns are less clear within biomes (e.g., across continents). By taking a longer perspective, through paleoecology, we present several studies that show a range of forest responses to past climatic and human disturbance, suggesting that short-term trends may not be reliable predictors of long-term resilience. We highlight that few contemporary and paleoecology studies have considered forest area when assessing resilience and those that have did find that smaller forest areas exhibited greater dynamism in species composition, which could be a proxy for declining resilience. Climatic conditions in the Anthropocene will be pushing forest systems across biomes into novel climates very rapidly and with current knowledge it is difficult to predict how forests will react in the immediate term, which is the most relevant timeframe for global efforts to reduce carbon emissions.

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“…Forest fragmentation in protected areas is a typical research issue for searching for innovative methodologies for landscape pattern analysis and mapping [60] and is a challenge in searching for new instruments for the sustainable management of biodiversity [61]. There are few contributions in this field based on landscape metrics derived from Landsat data, such as Gounaridis et al [62] in Greece or Sahana, Sajjad and Ahmed [46] in India, IRS and other medium-resolution imagery in India [63], using fractal modelling in Bhutan [64], while Cheţan et al [65] produced landscape metrics of forested landscapes in NATURA 2000 sites from the Apuseni Mountains, Romanian Carpathians.…”

Section: Introductionmentioning

confidence: 99%

Forest Habitat Fragmentation in Mountain Protected Areas Using Historical Corona KH-9 and Sentinel-2 Satellite Imagery

et al. 2022

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Forest habitat fragmentation is one of the global environmental issues of concern as a result of forest management practices and socioeconomic drivers. In this context, a constant evaluation of natural habitat conditions still remains a challenge in order to achieve a general image of the environmental state of a protected area for proper sustainable management. The purpose of our study was to evaluate the evolution of forest habitat in the last 40 years, focusing on Bucegi Natural Park, one of the most frequented protected areas in Romania, as relevant for highly human-impacted areas. Our approach integrates a historical panchromatic Corona KH-9 image from 1977 and present-day Sentinel-2 multispectral data from 2020 in order to calculate a series of spatial metrics that reveal changes in the pattern of the forest habitat and illustrate forest habitat fragmentation density. Object-based oriented analysis with supervised maximum likelihood classification was employed for the production of forest cover fragmentation maps. Ten landscape metrics were adapted to the analysis context, from patch statistics to proximity index. The results show a general growth of the forest surface but also an increase in habitat fragmentation in areas where tourism was developed. Fragmentation indices explain that larger and compact patches feature natural park protected forests after the spruce–fir secondary canopies were grown during the last 4–5 decades. The number of patches decreased to half, and their average size is double that of before. The method can be of extensive use for environmental monitoring in protected areas management and for understanding the environmental history connected to present-day problems that are to be fixed under rising human pressure.

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Evaluating forest fragmentation and its tree community composition in the tropical rain forest of Southern Western Ghats (India) from 1973 to 2004

Cited by 16 publications

References 71 publications

Conceptualizing Different Forest Degradation Drivers with Special Reference to India

Conceptualizing Different Forest Degradation Drivers with Special Reference to India

Combining Contemporary and Paleoecological Perspectives for Estimating Forest Resilience

Forest Habitat Fragmentation in Mountain Protected Areas Using Historical Corona KH-9 and Sentinel-2 Satellite Imagery

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