scholarly journals Understanding nutrient landscapes for giant pandas in the Qinling Mountains, China: the relationships between bamboo mineral content and giant panda habitat selection during migration

2018 ◽  
Vol 41 (2) ◽  
pp. 195-208 ◽  
Author(s):  
Q. Huang ◽  
◽  
X. Liu ◽  
Y. Li ◽  
J. Kraus ◽  
...  
2010 ◽  
Vol 37 (6) ◽  
pp. 531 ◽  
Author(s):  
M. Gong ◽  
Z. Yang ◽  
W. Yang ◽  
Y. Song

Context. Giant pandas (Ailuropoda melanoleuca) are restricted to six mountain ranges at the edge of the Tibetan Plateau. One of these ranges, the Qinling Mountains, contains the highest density of giant pandas and is home to ~20% of those remaining in the wild. Commercial logging and other developments have resulted in habitat fragmentation, and an efficient and powerful conservation network is now needed for the species in this area. Aims. This study sought to assess giant panda habitat and estimate the carrying capacity of this reserve network. Our goal was to improve the function and carrying capacity of the reserve network and facilitate population growth and gene flow among subpopulations of giant pandas. Methods. We use habitat suitability models to assess the efficacy of conservation networks. With estimation of carrying capacity by home range, we can reveal issues facing reserves and populations of endangered species they contain. Here, we define key habitat, linkages, corridors and overall connectivity and then use habitat network modelling and spatial analyses to design a conservation landscape for giant pandas across their Qinling Mountains stronghold. Key results. We found that 91% of giant panda sightings were in suitable or marginally suitable habitat. The total area of giant panda habitat present in the Qinling Mountains is ~1600 km2 fragmented across four key habitat blocks by national roads or other human activity. The current nature reserve network encompasses 71% of available suitable habitat and 62% of available marginal habitat, meaning a significant proportion of panda habitat remains outside the current conservation network. We found that giant panda reserves across this region are not equal in their carrying capacity; some reserves contain an overabundance of giant pandas and the wellbeing of these populations are in doubt. Conclusions. Our results highlight the potential risk of high densities and bamboo flowering events to the safety of giant pandas. With poor population size and heavy isolation, small populations will not persist without translocation. Implication. Redrawing the reserve network to correct localised problems may improve the function of the giant panda protection system, build capacity in the reserve network, and decrease human–wildlife conflict. We propose a new reserve and adjustment of the borders and region for three reserves.


2013 ◽  
Vol 2013 ◽  
pp. 1-9
Author(s):  
Xiang-yun Shi ◽  
Guo-hua Song

A mathematical model for the relationship between the populations of giant pandas and two kinds of bamboo is established. We use the impulsive perturbations to take into account the effect of a sudden collapse of bamboo as a food source. We show that this system is uniformly bounded. Using the Floquet theory and comparison techniques of impulsive equations, we find conditions for the local and global stabilities of the giant panda-free periodic solution. Moreover, we obtain sufficient conditions for the system to be permanent. The results provide a theoretical basis for giant panda habitat protection.


2012 ◽  
Vol 76 (5) ◽  
pp. 1092-1100 ◽  
Author(s):  
Dunwu Qi ◽  
Shanning Zhang ◽  
Zejun Zhang ◽  
Yibo Hu ◽  
Xuyu Yang ◽  
...  

Ursus ◽  
2014 ◽  
Vol 25 (2) ◽  
pp. 148-162 ◽  
Author(s):  
Vanessa Hull ◽  
Gary Roloff ◽  
Jindong Zhang ◽  
Wei Liu ◽  
Shiqiang Zhou ◽  
...  

2014 ◽  
Vol 64 (1) ◽  
pp. 75-86 ◽  
Author(s):  
Huaiqing Deng ◽  
Xuelin Jin ◽  
Defu Hu ◽  
Dingzhen Liu

Wild animals are affected by growing human interference in their habitats and inevitably react internally to such stimuli. This study explores inherent physiological parameters to assess the effect of human interference on giant pandas in their wild habitat. Ninety-one fecal samples were collected within four nature reserves on Qinling Mountain. Fecal cortisol determinations were performed by radioimmunoassay. We categorized the intensity of local human disturbance and tested for correlations between the intensity of human disturbance and fecal cortisol metabolite levels. The results show a significant positive correlation between giant panda fecal cortisol metabolite levels and the degree of disturbance in their habitat. This study is the first to use a non-invasive monitoring method to analyze wild giant panda habitat disturbance, and demonstrates that cortisol metabolite levels in panda dung can objectively reflect the degree of panda habitat disturbance. The results provide a relatively objective means and method with which to evaluate the quality of wild giant panda habitat. This study highlights the need to monitor the effects of human disturbance on wildlife and to implement new policies in the management of nature reserves.


2021 ◽  
Vol 9 ◽  
Author(s):  
Xuehua Liu ◽  
Lanmei Liu ◽  
Linna Liu ◽  
Xuelin Jin ◽  
Melissa Songer

The national surveys on giant panda (Ailuropoda melanoleuca) population and habitat quality have shown a high-density population of this species in the Qinling Mountains, China. We investigated five adjacent nature reserves (NR), i.e., the key distribution area of giant pandas in the Qinling Mountains, to model and identify the potential dispersal routes for giant pandas. We hypothesized that giant pandas will spread to neighboring areas when the population of the species keeps increasing. Habitat suitability was firstly evaluated based on environmental and disturbance factors. We then identified source and sink patches for giant pandas’ dispersal. Further, Minimum Cumulative Resistance (MCR) model was applied to calculate cost of movement. Finally, the Current Theory was adopted to model linkages between source and sink patches to explore potential dispersal routes of giant pandas. Our results showed that (1) the three large source patches and eight potential sink patches were identified; (2) the 14 potential corridors were predicted for giant pandas dispersing from source patches to the neighboring areas; (3) through the predicted corridors, the giant pandas in the source patches could disperse to the west, the south and the east sink patches. Our research revealed possible directional patterns for giant pandas’ dispersal in their key distribution area of the Qinling Mountains, and can provide the strong recommendations in policy and conservation strategies for improving giant panda habitat management in those identified sink patches and also potential dispersal corridors.


Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2469
Author(s):  
Xiaoyu Chen ◽  
Xiaorong Wang ◽  
Junqing Li ◽  
Dongwei Kang

Habitat suitability provides essential information for the management of protected species. However, studies that jointly consider the impacts of human disturbance and sympatric animals in habitat suitability assessments of giant panda are limited, which may overestimate the habitat status. To address this issue, we evaluated the habitat suitability of giant panda in Wanglang Nature Reserve by simultaneously investigating livestock grazing and sympatric takin via MAXENT, a new attempt at the assessment of the habitat suitability of giant panda. We focused on describing the habitat suitability of giant panda and determining the habitat overlap between livestock, takin, and panda to evaluate the impacts of livestock grazing and sympatric takin on the suitable giant panda habitat. Results revealed that only 16.33% of the area in Wanglang was suitable giant panda habitat, of which 67.66% was shared by livestock, and 97.99% of the remaining suitable panda habitat not shared by livestock was revealed to be shared by takin. The results indicate an unfavorable habitat status of giant panda in Wanglang, with the potential extensive habitat overlap between livestock, takin and panda exerting further pressure. Thus, to effectively protect giant pandas and their habitats, grazing activity should be controlled. Furthermore, to accurately protect sympatric animals, the monitoring of panda and takin activities in the overlapping areas must be maintained.


2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Melissa Songer ◽  
Melanie Delion ◽  
Alex Biggs ◽  
Qiongyu Huang

Giant pandas (Ailuropoda melanoleuca) are one of the most widely recognized endangered species globally. Habitat loss and fragmentation are the main threats, and climate change could significantly impact giant panda survival. We integrated giant panda habitat information with general climate models (GCMs) to predict future geographic distribution and fragmentation of giant panda habitat. Results support a major general prediction of climate change—a shift of habitats towards higher elevation and higher latitudes. Our models predict climate change could reduce giant panda habitat by nearly 60% over 70 years. New areas may become suitable outside the current geographic range but much of these areas is far from the current giant panda range and only 15% fall within the current protected area system. Long-term survival of giant pandas will require the creation of new protected areas that are likely to support suitable habitat even if the climate changes.


2005 ◽  
Vol 69 (4) ◽  
pp. 1623-1632 ◽  
Author(s):  
XUEHUA LIU ◽  
ALBERTUS G. TOXOPEUS ◽  
ANDREW K. SKIDMORE ◽  
XIAOMING SHAO ◽  
GAODI DANG ◽  
...  

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