Results 41 to 50 of about 1,536 (191)

An Automatically Initialized Level Set Method for Ochotona Curzoniae Image Segmentation

open access: diamondIOP Conference Series: Earth and Environmental Science, 2021
Abstract In order to effectively solve this problem that that the traditional level set method needs to mark the initial contour manually, a novel method that automatic initialization by utilizing deep learning is proposed in this paper.
Haiyan Chen, Huaqing Zhang
openalex   +2 more sources

Gut region influences the diversity and interactions of bacterial communities in pikas (Ochotona curzoniae and Ochotona daurica) [PDF]

open access: bronzeFEMS Microbiology Ecology, 2017
The mammalian microbial communities in the gastrointestinal tract (GIT) play important roles in host nutrition and health. However, we still lack an understanding of how these communities are organized across GIT in natural environments. Here, using 16S rRNA gene sequencing, we analyzed the bacterial community diversity, network interactions and ...
Huan Li   +7 more
openalex   +4 more sources

Preference for ground cover when selecting burrow entrances in plateau pikas [PDF]

open access: yesEcology and Evolution
Burrow‐dwelling animals such as the plateau pika (Ochotona curzoniae) often seek sturdy entrances for their burrows, which can reduce the need for frequent maintenance.
Rui Zhang, Wei Liu
doaj   +2 more sources

Dietary Differentiation Mitigates Interspecific Interference Competition Between Sympatric Pallas’s Cats (Otocolobus manul) and Red Foxes (Vulpes vulpes) [PDF]

open access: yesAnimals
The comparative analysis of the feeding ecology among sympatric small carnivores reveals both differentiation and overlap in resource utilization patterns, which serves as a critical pathway for understanding interspecific interactions and maintaining ...
Dong Wang   +5 more
doaj   +2 more sources

Identifying Conservation and Conflict Zones for Tibetan Brown Bears Under Climate Change Through Integrated Habitat and Prey Modeling on the Qinghai-Tibet Plateau. [PDF]

open access: yesEcol Evol
This study evaluates the future habitat dynamics of the Tibetan brown bear on the Qinghai‐Tibet Plateau under climate change by integrating predator–prey relationships and environmental variables using the MaxEnt model. Results show significant habitat contraction and shifting patterns, increasing the risk of human‐bear conflict.
Sun Q, Wanghe K, Dai Y.
europepmc   +2 more sources

Livestock grazing impacts on plateau pika (Ochotona curzoniae) vary by species identity [PDF]

open access: yesAgriculture, Ecosystems & Environment, 2019
Livestock and small burrowing mammals are potential ecosystem engineers and major drivers of ecosystem processes. Small mammals, often considered competitors with livestock, have been reported to increase in recent years and have been identified for ...
De, Kejia   +7 more
core   +3 more sources

Wind Erosion Characteristics of Rodent Mounds at a Degraded Area in Source Area of Yellow River

open access: yesShuitu baochi tongbao, 2022
[Objective] The mechanism of wind erosion of soil in rodent mounds in a degraded area of the source area of the Yellow River were determined by studying the characteristics of soil particle loss in order to provide significant guidance for further ...
Hui Zhai   +8 more
doaj   +1 more source

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