scholarly journals Changes in habitat selection patterns of the gray partridgePerdix perdixin relation to agricultural landscape dynamics over the past two decades

2019 ◽  
Vol 9 (9) ◽  
pp. 5236-5247 ◽  
Author(s):  
Clément Harmange ◽  
Vincent Bretagnolle ◽  
Mathieu Sarasa ◽  
Olivier Pays
Keyword(s):  
Habitat Selection ◽  
Agricultural Landscape ◽  
Landscape Dynamics ◽  
The Past

Landscape Pattern Dynamics and Landscape Sustainability in Shenzhen City

2012 ◽  
Vol 209-211 ◽  
pp. 337-340
Author(s):  
Bin Xun ◽  
De Yong Yu ◽  
Yu Peng Liu
Keyword(s):  
Land Use ◽  
Landscape Pattern ◽  
Agricultural Landscape ◽  
Urban Landscape ◽  
Landscape Dynamics ◽  
Landscape Sustainability ◽  
Rapid Urbanization ◽  
Pattern Dynamics ◽  
Urbanization In China ◽  
Shape Complexity

urbanization, land use, landscape pattern, landscape sustainability, Shenzhen Abstract. Urbanization has been a universal and irresistible trend across the world. Quantifying urban landscape pattern changes can provide detailed information to understand the urbanization process and to operationalize landscape sustainability. Combining the remotely sensed images and landscape metrics, we analyze the land use structure and landscape dynamics in a typical region of rapid urbanization in China—Shenzhen during the period of 1980-2010. The results showed that the dominant semi-natural and agricultural landscape has been fundamentally converted into the human-induced landscape. At the landscape level, the signatures of landscape dynamics exhibited a coalescence-diffusion-coalescence pattern. At the class level, the degree of fragmentation and shape complexity of four main land use types substantially increased.

scholarly journals Impacts of Intensified Agriculture Developments on Marsh Wetlands

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Zhaoqing Luan ◽  
Demin Zhou
Keyword(s):  
Agricultural Development ◽  
Agricultural Landscape ◽  
Nature Reserve ◽  
Spatiotemporal Analysis ◽  
Sanjiang Plain ◽  
Natural Marsh ◽  
The Sanjiang Plain ◽  
Wetland Ecosystems ◽  
The Past ◽  
Remote Sensing Techniques

A spatiotemporal analysis on the changes in the marsh landscape in the Honghe National Nature Reserve, a Ramsar reserve, and the surrounding farms in the core area of the Sanjiang Plain during the past 30 years was conducted by integrating field survey work with remote sensing techniques. The results indicated that intensified agricultural development had transformed a unique natural marsh landscape into an agricultural landscape during the past 30 years. Ninety percent of the natural marsh wetlands have been lost, and the areas of the other natural landscapes have decreased very rapidly. Most dry farmland had been replaced by paddy fields during the progressive change of the natural landscape to a farm landscape. Attempts of current Chinese institutions in preserving natural wetlands have achieved limited success. Few marsh wetlands have remained healthy, even after the establishment of the nature reserve. Their ecological qualities have been declining in response to the increasing threats to the remaining wetland habitats. Irrigation projects play a key role in such threats. Therefore, the sustainability of the natural wetland ecosystems is being threatened by increased regional agricultural development which reduced the number of wetland ecotypes and damaged the ecological quality.

scholarly journals VATRA DORNEI – FORESTRY LANDSCAPE DYNAMICS IN THE PAST 240 YEARS

2018 ◽  
Author(s):  
Afloari Mihai ◽  
◽  
Diana-Sofia Graur ◽  
Vasilică-Dănuț Horodnic ◽  
Vasile Efros
Keyword(s):  
Landscape Dynamics ◽  
The Past

scholarly journals Don't go chasing the ghosts of the past: habitat selection and site fidelity during calving in an Arctic ungulate

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Ingrid M. Garfelt-Paulsen ◽  
Eeva M. Soininen ◽  
Virve Ravolainen ◽  
Leif Egil Loe ◽  
Brage B. Hansen ◽  
...  
Keyword(s):  
Habitat Selection ◽  
Site Fidelity ◽  
The Past

scholarly journals Wolf habitat selection in relation to recreational structures in a national park

2020 ◽  
Author(s):  
Kimberly Malcolm ◽  
Marianne Cheveau ◽  
Martin-Hugues St-Laurent
Keyword(s):  
Habitat Selection ◽  
National Park ◽  
Resource Selection ◽  
Surrounding Area ◽  
Linear Structures ◽  
Predator Species ◽  
The Past ◽  
Management Measures ◽  
The Relationship ◽  
Shed Light

Abstract Although most predators usually avoid human activity, some individuals instead will habituate to it. Habituation to human presence and infrastructure by predator species such as wolves may lead to conflicts implicating serious risks for public safety and for the survival of the animals involved. Accordingly, this research project aims to shed light on the relationship between wolves and recreational structures using telemetry data from 10 wolves located in the Parc National du Mont-Tremblant (Québec, Canada) and its surrounding area. Using resource selection functions (RSFs), we observed wolf habitat selection in relation to these structures during three biological periods (denning: May–June; rendezvous: June–October; and nomadic: October–April). Our results revealed that wolves selected proximity to linear structures (roads and trails) during the denning and rendezvous periods, but this selection depended on the density of such structures in the surroundings (i.e., functional response in habitat selection): wolves selected proximity to linear structures when these structures were present at greater densities. Wolves avoided housing structures (campsites, cabins, park facilities), especially when these structures were present at greater densities, suggesting that wolves perceived them as a risk. These results suggest that conflicts between visitors and wolves were unlikely to occur in campgrounds during the time of our study. This could indicate that the management measures implemented by the park following the past episodes of conflict were effective. However, wolves’ use of linear structures could lead to increased tolerance to human proximity if left unmanaged.

scholarly journals Landscape agronomy: a new field for addressing agricultural landscape dynamics

2012 ◽  
Vol 27 (10) ◽  
pp. 1385-1394 ◽  
Author(s):  
Marc Benoît ◽  
Davide Rizzo ◽  
Elisa Marraccini ◽  
Anna Camilla Moonen ◽  
Mariassunta Galli ◽  
...  
Keyword(s):  
Agricultural Landscape ◽  
Landscape Dynamics ◽  
Landscape Agronomy

scholarly journals Mapping the functional connectivity of predation by large carnivores in the Canadian Rocky Mountains

2016 ◽  
Author(s):  
Adam Ford
Keyword(s):  
Habitat Selection ◽  
Land Use Planning ◽  
Industrial Development ◽  
Habitat Type ◽  
Large Carnivores ◽  
Canadian Rocky Mountains ◽  
Selection Models ◽  
The Past ◽  
Banff National Park ◽  
Gis Software

After decades of persecution, large carnivores are returning to human-occupied landscapes in many areas of North America and Europe. To ensure the safety of both people and wildlife, we need to understand how these animals perceive and select habitat as they navigate through developed area. Here, I investigate habitat selection by wolves and cougars in a 20,000 km2 landscape characterized by a marked gradient of urban and industrial development. I used data from over 15,000 km of wolf and cougar movement pathways, and from over 750 kill sites made by these two predators. These data were collected during the past 22 winters in Banff National Park (Alberta, Canada) and environs. Using GIS software, I created habitat selection models by comparing ‘used’ resources (e.g., topography, habitat type) found along movement pathways and at kill sites, with random points located <500 m from used sites. I then incorporated the results of these habitat selection models into a connectivity analysis to quantify the predicted flow of both movement and predation across the landscape. These results illustrate the extent to which ‘connectivity’ depends on species (e.g., cougars vs. wolves), behavior (movement vs. foraging), and proximity to people. These results are being used to inform policy on land-use planning in areas where large carnivores and people co-exist.

Landscape dynamics and driving forces of wetlands in the Tumen River Basin of China over the past 50 years

2017 ◽  
Vol 13 (2) ◽  
pp. 237-250 ◽  
Author(s):  
Xiao Jun Zheng ◽  
Peng Sun ◽  
Wei Hong Zhu ◽  
Zhen Xu ◽  
Jing Fu ◽  
...  
Keyword(s):  
River Basin ◽  
Driving Forces ◽  
Landscape Dynamics ◽  
Tumen River ◽  
The Past
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