Assessing the impact of road developments on connectivity across multiple scales: Application to Yunnan snub-nosed monkey conservation

Clauzel, Céline; Xi-qing, Deng; Wu, Guangxin; Giraudoux, Patrick; Li, Li

doi:10.1016/j.biocon.2015.09.029

Cited by 46 publications

(37 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The nodes of the graph were defined following the concept of "metapatches" developed by Zetterberg et al (2010) and previously used in Clauzel et al (2015b) for the snub-nosed monkey. This concept is based on a life traits, and the functional definition of habitat patches depends on the ecological process being considered (Theobald, 2006).…”

Section: Modelling the Landscape Network Of The Snub-nosed Monkeymentioning

confidence: 99%

“…Land cover was classified into five categories (Table 1) according to the observed preferences of the Yunnan snub-nosed monkey (Clauzel et al, 2015b;Li et al, 2006;Wang et al, 2011;Wu et al, 2005;Zhang et al, 2016) and rasterized at a resolution of 50 m. The elevational distribution of each land cover type was derived from a 30 m-resolution DEM resampled to 50 m using a bilinear interpolation of the Chinese Geospatial Data Cloud (http://www.gscloud.cn/).…”

Section: Land Cover Datamentioning

confidence: 99%

See 1 more Smart Citation

Improving landscape connectivity for the Yunnan snub-nosed monkey through cropland reforestation using graph theory

Clauzel

Dai

et al. 2017

Journal for Nature Conservation

Self Cite

View full text Add to dashboard Cite

, et al.. Improving landscape connectivity for the Yunnan snub-nosed monkey through cropland reforestation using graph theory. Journal for Nature Conservation, Elsevier, 2017Elsevier, , 38, pp.46 -55. 10.1016Elsevier, /j.jnc.2017 Journal for Nature Conservation 38 (2017) 46-55 http://dx.doi.org/10.1016/j.jnc.2017.06.002 Improving landscape connectivity for the Yunnan snub-nosed monkey through cropland reforestation using graph theory Abstract: Habitat fragmentation is a threat to biodiversity because it restricts the ability of animals to move. Maintaining landscape connectivity could promote connections between habitat patches, which is extremely important for the preservation of gene flow and population viability. This paper aims to evaluate the landscape connectivity of forest areas as it relates to the conservation of the Yunnan snub-nosed monkey (Rhinopithecus bieti), an emblematic and endemic endangered primate species. Specifically, this study seeks to model ways to improve connectivity via cropland reforestation scenarios which incorporate graph theory and genetic distances. The connectivity improvement assessment is performed at two nested scales.At the regional scale, the aim is to quantitatively assess the gain in connectivity from different reforestation scenarios, in which croplands are replaced by different kinds of forest habitats. At the local scale, the goal is to prioritize and to locate croplands based on the gain in connectivity that they would provide if they were reforested. The results indicate that the four reforestation scenarios have different impacts on connectivity; the fourth scenario, in which reforestation is accomplished with plant species that provide optimal monkey habitat, yields the greatest increase in connectivity (+24% versus less than +2% for the others). Prioritization of the 1482 cropland patches shows that the 10 best patches increase connectivity from 0.04% to 9.1% as the isolation threshold distance increases. This kind of graph theoretic approach appears to be a useful tool for connectivity assessment and the development of conservation measures for species impacted by human activities.

show abstract

Section: Modelling the Landscape Network Of The Snub-nosed Monkeymentioning

confidence: 99%

Section: Land Cover Datamentioning

confidence: 99%

Improving landscape connectivity for the Yunnan snub-nosed monkey through cropland reforestation using graph theory

Clauzel

Dai

et al. 2017

Journal for Nature Conservation

Self Cite

View full text Add to dashboard Cite

show abstract

“…We respectively used the inverse of the habitat suitability map as a resistance surface (Wang et al, ) and identified least‐cost paths (Li, Clauzel, et al, ) to identify the current and future potential habitat corridors for Sichuan golden monkey. All analyses were performed using Graphab 2.2 software (available at https://sourcesup.renater.fr/graphab/en/home.html) (Clauzel, Deng, Wu, Giraudoux, & Li, ).…”

Section: Methodsmentioning

confidence: 99%

Identifying potential refugia and corridors under climate change: A case study of endangered Sichuan golden monkey (Rhinopithecus roxellana) in Qinling Mountains, China

Xue

et al. 2018

American J Primatol

View full text Add to dashboard Cite

Climate change threatens endangered species and challenges current conservation strategies. Effective conservation requires vulnerability assessments for species susceptible to climate change and adaptive strategies to mitigate threats associated with climate. In this paper, we used the Maxent to model the impacts of climate change on habitat suitability of Sichuan golden monkey Rhinopithecus roxellana. Our results showed that (i) suitable habitat for Sichuan golden monkey was predicted to decrease by 37% in 2050s under climate change; (ii) the mean elevations of suitable habitat in the 2050s was estimated to shift 160 m higher; (iii) nature reserves protect 62% of current suitable habitat and 56% of future suitable habitat; and (iv) 49% of current suitable habitat was predicted to be vulnerable to future climate change. Given these results, we proposed conservation implications to mitigate the impacts of climate change on Sichuan golden monkey, including adjusting range of national park, establishing habitat corridors, and conducting long‐term monitoring.

show abstract

“…Unless physical and habitat barriers to intergroup or inter-subpopulation migration are eliminated, several species are likely to go extinct in the next 25-50 years (Wong, Li, Xu, & Long, 2013). For example, in the case of the Yunnan black and white snub-nosed monkey, Clauzel, Xiqing, Gongsheng, Giraudoux, and Li (2015) present data that the presence of permanent infrastructure such as roads and buildings prohibits long-distance migration and this has contributed to the isolation of the two northern subpopulations from the remaining three subpopulations inhabiting the Baima Snow Mountain Reserve.…”

Section: Discussionmentioning

confidence: 99%

Impacts of human activity and climate change on the distribution of snub‐nosed monkeys in China during the past 2000 years

Zhao

Bao-ping

Garber

et al. 2017

Diversity and Distributions

View full text Add to dashboard Cite

Aim: In this article, we analysed two millennia of historical records and environmental information to reconstruct the past distribution and examine the current distribution of snub-nosed monkeys (Rhinopithecus) in China.Location: China. Methods:We applied trend surface analysis (TSA) to document patterns of range shifting in snub-nosed monkeys over time. Random forest was used to study the association between explanatory variables and changes in the distribution of snub-nosed monkeys over the past 2000 years. Results:Our results showed that both the longitude and latitude of snub-nosed monkeys contracted from 0 to 2000 AD. We found that the integrated effects of human population size and changes in temperature in the Northern Hemisphere resulted in a westward and northward contraction of the snub-nosed monkey distributional range.However, the impact of fluctuating temperature was greatest during periods of low human population density (0-1200 AD), whereas from 1200 to 2000 AD, marked increases in human population size in China leading to extensive deforestation, agricultural expansion, hunting, logging and land terracing have had the greatest negative effects. Further analyses highlighted the fact that the rapid expansion of human population density in regions occupied by snub-nosed monkeys between 1700 and 2000 has resulted in the recent extirpation of this primate radiation in eastern, south-eastern and central China. Main conclusions:We examined the interactive effects of human population growth, deforestation, agricultural expansion and climate variation on the past and current distribution of snub-nosed monkeys. Our data provide clear evidence that climate change, human population increase and human activities have differentially affected the viability and distribution of snub-nosed monkey populations over time. In particular, the marked expansion of the human population in China over the past 300 years has resulted in the extinction of Rhinopithecus populations across much of its range. K E Y W O R D Sclimate change, distribution shift, historical records, human activities, snub-nosed monkeys

show abstract

Assessing the impact of road developments on connectivity across multiple scales: Application to Yunnan snub-nosed monkey conservation

Cited by 46 publications

References 65 publications

Improving landscape connectivity for the Yunnan snub-nosed monkey through cropland reforestation using graph theory

Improving landscape connectivity for the Yunnan snub-nosed monkey through cropland reforestation using graph theory

Identifying potential refugia and corridors under climate change: A case study of endangered Sichuan golden monkey (Rhinopithecus roxellana) in Qinling Mountains, China

Impacts of human activity and climate change on the distribution of snub‐nosed monkeys in China during the past 2000 years

Contact Info

Product

Resources

About