A climate change indicator framework for rangelands and pastures of the USA

Ojima, Dennis S.; Aicher, Rebecca; Archer, Steven R.; Bailey, Derek W.; Casby-Horton, Susan M.; Cavallaro, N.; Reyes, Julian; Tanaka, John; Washington-Allen, R. A.

doi:10.1007/s10584-020-02915-y

Cited by 10 publications

(4 citation statements)

References 52 publications

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“…Papanastasis and coauthors [ 71 ] point out that the Psiloritis mountain is overgrazed as the stocking rate is four times higher than the grazing capacity. Ojima and coauthors [ 72 ] found that overgrazing results in the loss of vegetation cover and increased erosion. The low vegetation cover provides low protection from soil erosion and a high risk for degradation [ 13 ] and reduced soil porosity [ 46 , 73 ].…”

Section: Resultsmentioning

confidence: 99%

Impact of Grazing on Diversity of Semi-Arid Rangelands in Crete Island in the Context of Climatic Change

Karatassiou

Parissi

Panajiotidis

et al. 2022

Plants

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The rangelands of Crete island (Greece) are typical Mediterranean habitats under high risk of degradation due to long-term grazing and harsh climatic conditions. We explored the effect of abiotic (climatic conditions, altitude) and biotic factors (long-term grazing by small ruminants) on the floristic composition and diversity of selected lowland (Pyrathi, Faistos) and highland (Vroulidia, Nida) rangelands. In each rangeland, the ground cover was measured, and the floristic composition was calculated in terms of five functional groups: grasses, legumes, forbs, phrygana, and shrubs. The aridity index, species turnover, species richness, Shannon entropy, and Gini–Simpson index (with the latter two converted to the effective number of species) were calculated. Our results reveal that highlands are characterized by the highest aridity index (wetter conditions). Lowland rangelands, compared to highland, exhibited a higher percentage contribution of grasses, legumes, and forbs, while species turnover decreased along the altitudinal gradient. The Shannon entropy index was correlated (a) positively with Gini–Simpson and mean annual temperature and (b) negatively with mean annual precipitation, aridity index, and altitude. Moreover, the Gini–Simpson index correlated positively with mean annual temperature and negatively with altitude. Our results could help to understand the effects of grazing on rangeland dynamics and sustainability in semi-arid regions in the context of climatic change.

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Section: Resultsmentioning

confidence: 99%

Impact of Grazing on Diversity of Semi-Arid Rangelands in Crete Island in the Context of Climatic Change

Karatassiou

Parissi

Panajiotidis

et al. 2022

Plants

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“…Data from these programs are also used to create indices of human pressure (Watson & Venter, 2019) and to assess rates of annual deforestation (Hansen et al, 2013). Primary production of vegetation, carbon budgets, drought effects, and ecosystem degradation and restoration (Ojima, 2020) can be quantified using data from the MODIS mission (Running et al, 2004). Temporal patterns of plant growth within ecoregions in the form of onset, end, and length of growing season and total annual productivity are also measured with MODIS products (Cavender-Bares et al, 2020).…”

Section: Global Ecological Observationmentioning

confidence: 99%

Toward monitoring forest ecosystem integrity within the post‐2020 Global Biodiversity Framework

Hansen

Noble

Veneros

et al. 2021

CONSERVATION LETTERS

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Signatory countries to the Convention on Biological Diversity (CBD) are formulating goals and indicators through 2050 under the post-2020 Global Biodiversity Framework (GBF). Among the goals is increasing the integrity of ecosystems. The CBD is now seeking input toward a quantifiable definition of integrity and methods to track it globally. Here, we offer a schema for using Earth observations (EO) to monitor and evaluate global forest ecosystem integrity (EI). Our approach builds on three topics: the concept of EI, the use of satellite-based EO, and the use of "essential biodiversity variables" to monitor and report on it. Within this schema, EI is a measure of the structure, function, and composition of an ecosystem relative to the range of variation determined by climaticgeophysical environment. We use evaluation criteria to recommend eight potential indicators of EI that can be monitored around the globe using Earth Observations to support the efforts of nations to monitor and report progress to implement the post-2020 GBF. If operationalized, this schema should help Parties to the CBD take action and report progress on achieving ecosystem commitments during this decade.

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“…At the macro level, relevant policies formulated by the government and sustainable livelihood measures adopted by non-governmental organizations have direct or indirect impacts on residents' livelihoods. In recent years, the impact of ecological compensation, reforestation, and grazing ban on sustainable livelihoods is one of the hot spots in global sustainable livelihoods research [61][62][63][64] .…”

Section: Analysis Of the Abstract Co-occurrencementioning

confidence: 99%

Unveiling the Past, Current and Future of Global Sustainable Livelihoods Research by Visual and Quantitative Analysis

Li¹,

Cui²,

Singh³

et al. 2021

Preprint

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Sustainable Livelihoods (SLs) is now a high-priority field in global environmental change research, becoming one of the key research paradigms in sustainability science increasingly and an important component of the Sustainable Development Goals. A Scientometrics analysis based on Science Citation Index-Expanded was performed to understand the research trends and areas in SLs studies. A total of 6441 papers related to SLs studies and 265, 759 references published from 1991 to 2020 were selected as the research objects. Using advanced quantitative analysis tools such as CiteSpace and VOSviewer, we quantify and visualize the characteristics and evolution of the literature in the field of SLs research, to clarify the historical research characteristics, knowledge base, and future research trends. The results show that the annual number of documents increased exponentially since 1991. Ecological sciences and ecology were the most popular Web of Science research areas. The institution with the greatest research documents and most citations was the CGIAR. The most influential journal is Word Development. Singh R.K., Shackleton C.M., was the most productive author. Six clusters of research areas were determined by keyword co-occurrence analysis. The results of the evolution of research hotspots show that the four tags currently still active. We also detected 11 directions of SLs research studies based on the keywords’ score relevance, which has allowed the iden-tification of future lines of research with more importance. These results can help related researchers better understand the past current and future of SLs research studies, which is significant for achieving livelihoods sustainability.

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A climate change indicator framework for rangelands and pastures of the USA

Cited by 10 publications

References 52 publications

Impact of Grazing on Diversity of Semi-Arid Rangelands in Crete Island in the Context of Climatic Change

Impact of Grazing on Diversity of Semi-Arid Rangelands in Crete Island in the Context of Climatic Change

Toward monitoring forest ecosystem integrity within the post‐2020 Global Biodiversity Framework

Unveiling the Past, Current and Future of Global Sustainable Livelihoods Research by Visual and Quantitative Analysis

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