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| Author |
Frost, S.W. |
| Title |
Insects taken in light traps at the Archbold Biological Station, Highlands County, Florida |
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Journal Article |
| Year |
1964 |
Publication |
Florida Entomologist |
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| Volume |
47 |
Issue |
2 |
Pages |
129-161 |
| Keywords |
Animals |
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GFZ @ kyba @ |
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2732 |
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| Author |
Ma, X.; Li, C.; Tong, X.; Liu, S. |
| Title |
A New Fusion Approach for Extracting Urban Built-up Areas from Multisource Remotely Sensed Data |
Type |
Journal Article |
| Year |
2019 |
Publication |
Remote Sensing |
Abbreviated Journal |
Remote Sensing |
| Volume |
11 |
Issue |
21 |
Pages |
2516 |
| Keywords |
Remote Sensing |
| Abstract |
Recent advances in the fusion technology of remotely sensed data have led to an increased availability of extracted urban information from multiple spatial resolutions and multi-temporal acquisitions. Despite the existing extraction methods, there remains the challenging task of fully exploiting the characteristics of multisource remote sensing data, each of which has its own advantages. In this paper, a new fusion approach for accurately extracting urban built-up areas based on the use of multisource remotely sensed data, i.e., the DMSP-OLS nighttime light data, the MODIS land cover product (MCD12Q1) and Landsat 7 ETM+ images, was proposed. The proposed method mainly consists of two components: (1) the multi-level data fusion, including the initial sample selection, unified pixel resolution and feature weighted calculation at the feature level, as well as pixel attribution determination at decision level; and (2) the optimized sample selection with multi-factor constraints, which indicates that an iterative optimization with the normalized difference vegetation index (NDVI), the modified normalized difference water index (MNDWI), and the bare soil index (BSI), along with the sample training of the support vector machine (SVM) and the extraction of urban built-up areas, produces results with high credibility. Nine Chinese provincial capitals along the Silk Road Economic Belt, such as Chengdu, Chongqing, Kunming, Xining, and Nanning, were selected to test the proposed method with data from 2001 to 2010. Compared with the results obtained by the traditional threshold dichotomy and the improved neighborhood focal statistics (NFS) method, the following could be concluded. (1) The proposed approach achieved high accuracy and eliminated natural elements to a great extent while obtaining extraction results very consistent to those of the more precise improved NFS approach at a fine scale. The average overall accuracy (OA) and average Kappa values of the extracted urban built-up areas were 95% and 0.83, respectively. (2) The proposed method not only identified the characteristics of the urban built-up area from the nighttime light data and other daylight images at the feature level but also optimized the samples of the urban built-up area category at the decision level, making it possible to provide valuable information for urban planning, construction, and management with high accuracy. |
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2072-4292 |
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GFZ @ kyba @ |
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2731 |
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Deng, K.; Zhu, B.-C.; Zhou, Y.; Chen, Q.-H.; Wang, T.-L.; Wang, J.-C.; Cui, J.-G. |
| Title |
Mate choice decisions of female serrate-legged small treefrogs are affected by ambient light under natural, but not enhanced artificial nocturnal light conditions |
Type |
Journal Article |
| Year |
2019 |
Publication |
Behavioural Processes |
Abbreviated Journal |
Behavioural Processes |
| Volume |
in press |
Issue |
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Pages |
103997 |
| Keywords |
Animals; frogs; amphibians; serrate-legged small treefrogs; Kurixalus odontotarsus |
| Abstract |
Artificial light at night (ALAN) is a widespread anthropogenic stimulus that can significantly alter nocturnal animals’ behavior, from migration to foraging to vocal communication. In the present study, we tested the hypothesis that the mate choice decisions of female serrate-legged small treefrogs (Kurixalus odontotarsus) were influenced by ambient light intensity. Standard two-speaker phonotaxis tests were conducted in a sound attenuating chamber. We set four light conditions (I-IV, from low to high) based on a range of light intensities from the maximum natural light at night (i.e., full moon) to that of the actual calling sites, which had artificial light. Contrary to our prediction, female frogs showed a preference for calls on the bright side in treatment I when they were exposed to identical stimuli. However, females preferred longer calls on the dim side to shorter calls on the bright side in this treatment. In addition, there were no significant effects of choice side, light treatment or their interaction on leave time or choice time. Our results suggest that females are more attracted to mates in bright light under natural nocturnal light conditions, but the preference for longer calls is not altered in serrate-legged small treefrogs. |
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Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China |
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Elsevier |
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English |
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English |
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0376-6357 |
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no |
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GFZ @ kyba @ |
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2730 |
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| Author |
Hong, Y.; Lee, S.; Choi, J.; Jin, Y.; Won, J.; Hong, Y. |
| Title |
Conditional Controlled Light/Dark Cycle Influences Exercise-Induced Benefits in a Rat Model with Osteoarthritis: In Vitro and In Vivo Study |
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Journal Article |
| Year |
2019 |
Publication |
Journal of Clinical Medicine |
Abbreviated Journal |
J Clin Med |
| Volume |
8 |
Issue |
11 |
Pages |
1855 |
| Keywords |
Animals; environmental lighting; inflammation; musculoskeletal homeostasis; physical exercise |
| Abstract |
Physical exercise has long been recommended as a treatment for osteoarthritis (OA), though its effects vary based on the exercise protocol. Here, we examined whether environmental lighting conditions influence the anti-inflammatory benefits of exercise in a rat model of OA. Moderate-intensity treadmill exercise (Ex) was performed for six weeks under a 12:12 h light/dark (L/D) cycle, and compared against rats housed in a 24 h continuous light (L/L) environment. L/L conditions were associated with serological changes shortly after OA induction, which exacerbated the inflammatory microenvironment in the joint. Differentiation capacity was also impaired in bone precursor cells isolated from normal rats maintained under L/L conditions, despite elevated inflammatory responses. Exercise training under L/L conditions led to increased corticosterone levels in the blood, which exacerbated the progression of cartilaginous and synovial lesions. Osteoporotic phenomena were also observed in exercise-trained rats maintained under L/L conditions, along with inflammation-induced catabolism in the gastrocnemius muscle. Aberrant light/dark cycle conditions were also found to be associated with suppression of splenic Cry1 expression in exercise-trained rats, leading to dysregulation of immune responses. Taken together, these data suggest that lighting condition may be an important environmental factor influencing the exercise-induced benefits on OA. |
| Address |
Department of Medicine, Division of Hematology/Oncology, Harvard Medical SchoolBeth Israel, Deaconess Medical Center, Boston, MA 02215, USA. yonghong@inje.ac.kr |
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2077-0383 |
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PMID:31684092 |
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no |
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GFZ @ kyba @ |
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2729 |
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Li, X.T., Chen, B., Wang, H.J., Zheng, G., Yang, D., Miao, X.Y., & Xu, C. |
| Title |
Effects of urban nighttime light on the growth of Cinnamomum camphora |
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Journal Article |
| Year |
2019 |
Publication |
Ying Yong Sheng Tai Xue Bao |
Abbreviated Journal |
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| Volume |
30 |
Issue |
7 |
Pages |
2284-2290 |
| Keywords |
Plants |
| Abstract |
To understand the effects of urban artificial nighttime light on the growth of evergreen trees, we conducted a field investigation in a typical urban street planted with Cinnamomum camphora (a common evergreen street tree species in eastern China) in the Nanjing City, China. Along the street, trees from two types of growing locations with contrasting distances from the street lamp (just under the lamp vs. between two adjacent lamps) were selected. The growth-related plant functional traits were measured and compared. The results showed that trees grown under the lamp had a mean diameter at beast height (DBH) of 16.8 cm, current-year branch productivity (CBP) of 309.4 g·m-2, current-year leaf productivity (CLP) of 241.5 g·m-2, and leaf relative chlorophyll content (LCC) of 34.6 SPAD. Trees grown between lamps had a mean DBH of 15.5 cm, CBP of 273.4 g·m-2, CLP of 212.8 g·m-2, and LCC of 33.1 SPAD. DBH, CBP, CLP and LCC of the trees under the lamp were significantly higher than those between lamps. There was no significant difference in specific leaf area between trees from the two locations. Our results suggested that urban artificial nighttime light could promote the growth of C. camphora, and alter sunlight-determined characteristics of canopy growth vigor.
为了解常绿乔木对城市夜间灯光的生长响应,以华东地区典型常绿行道树种香樟为对象,研究南京市一条典型道路上近灯处(路灯正下方)和远灯处(两相邻路灯中间位置)生长区位的夜间光照强度差异性对香樟生长性状的影响.结果表明: 近灯处香樟的平均胸径为16.8 cm,当年生小枝总生产力为309.4 g·m-2,当年生叶片生产力为241.5 g·m-2,叶片相对叶绿素含量为34.6 SPAD.远灯处香樟的平均胸径为15.5 cm,当年生小枝总生产力为273.4 g·m-2,当年生叶片生产力为212.8 g·m-2,叶片相对叶绿素含量为33.1 SPAD.近灯处香樟的平均胸径、当年生小枝总生产力、当年生叶片生产力及叶片相对叶绿素含量均显著高于远灯处.两处树木间比叶面积没有显著差异.夜间灯光的补充照明促进了近灯处香樟的生长,并改变了树冠生长对阳光的响应特征. |
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Chinese |
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IDA @ intern @ |
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2728 |
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