Article
Ecology
Huiying Liu, Chunyan Lu, Songdan Wang, Fei Ren, Hao Wang
Summary: The research found that experimental warming did not significantly affect the duration of the reproductive phases of terrestrial plants globally, but did lead to a lengthening of the growing season. The temperature sensitivity of reproductive phases was influenced by the taxa of plants, and the lengthening of the growing season was affected by the magnitude of warming.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2021)
Article
Environmental Sciences
Cancan Qiao, Shi Shen, Changxiu Cheng, Junxu Wu, Duo Jia, Changqing Song
Summary: The study found that the phenology in the Qilian Mountains showed spatial and temporal heterogeneity, with the start of the growing season gradually delayed as altitude increased from southeast to northwest. Overall, there was an advanced trend in the annual average start of the growing season, a delayed trend in the end of the growing season, and an extended trend in the length of the growing season. Preseason temperatures were found to affect the start and end of the growing season, with the length of the growing season being positively correlated with annual mean temperature.
Article
Environmental Sciences
Shakirudeen Lawal, Bruce Hewitson, Temitope S. Egbebiyi, Ayodeji Adesuyi
Summary: The study evaluated the suitability of vegetation indices to monitor the response of Africa's terrestrial ecoregions to drought, using different remotely sensed derived drought indices and calculating their correlations with vegetation indices spatially, temporally, and seasonally. The results showed variations in the response of vegetation indices and derived drought indices across different timescales and regions in Africa.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Ramandeep Kaur M. Malhi, G. Sandhya Kiran, Mangala N. Shah, Nirav Mistry, Viral H. Bhavsar, Chandra Prakash Singh, Bimal Kumar Bhattarcharya, Philip A. Townsend, Shiv Mohan
Summary: The study focused on generating phenological metrics for teak using MODIS NDVI data, showcasing the shifts in the start, end, and duration of the growing season, and the potential impact on productivity.
Article
Biophysics
Ellen G. Denny, Theresa M. Crimmins
Summary: The USA National Phenology Network aims to coordinate the collection of rigorous, high-quality phenology observations to support scientific discovery and management decisions. Modifications have been made to the original protocols since their publication in 2014, including clearer definitions of phenophase, inclusion of new taxonomic groups, and expansion to capture more life cycle stages. Future updates can be found in the University of Arizona Research Data Repository.
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
(2023)
Article
Environmental Sciences
Xueying Li, Wenquan Zhu, Zhiying Xie, Pei Zhan, Xin Huang, Lixin Sun, Zheng Duan
Summary: This study compared the trends estimated from daily and composite NDVI data using different interpolation methods, vegetation types, and combinations of interpolation and extraction methods. The results showed that while interpolation methods did not significantly affect trend estimation, the discrepancies caused by time interpolation could not be ignored, especially in vegetation types with pronounced seasonal changes. Furthermore, the selection of extraction methods also affected trend estimation, with less discrepancies between trends estimated from 8-day and 16-day datasets in certain vegetation types.
Article
Ecology
Ellen O. Aikens, Teal B. Wyckoff, Hall Sawyer, Matthew J. Kauffman
Summary: This study analyzes a long-term tracking dataset and finds that the expansion of energy development along a migratory corridor changes the behavior of mule deer, reducing their ability to keep pace with spring vegetation green-up by more than 38%.
NATURE ECOLOGY & EVOLUTION
(2022)
Article
Multidisciplinary Sciences
Shraddhanand Shukla, Greg Husak, William Turner, Frank Davenport, Chris Funk, Laura Harrison, Natasha Krell
Summary: Since 2015, Sub-Saharan Africa has seen a significant increase in acute food insecurity, with over 100 million Africans estimated to need emergency food assistance in 2020. The study shows that delays in the onset of the rainy season can be a critical early indicator of seasonal drought conditions, particularly in East Africa, where even a small delay increases the likelihood of drought. Early warning systems based on onset date can help mitigate the impact of drought and save lives and livelihoods in the most food-insecure regions.
Article
Biodiversity Conservation
S. Bajocco, C. Ferrara, M. Bascietto, A. Alivernini, R. Chirichella, A. Cutini, F. Chianucci
Summary: The study aimed to identify the climatic determinants of seed production and vegetation growth in European beech, and to evaluate if there is a trade-off between these plant processes. Results showed the significant role of climate in masting, especially in high seed production years. Moist summer and dry spring conditions in previous years were found to be the main driving factors for masting.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
David K. Swanson
Summary: The study found that over half of the spring rise in NDVI was due to the transition from snow-covered landscapes to snow-free surfaces, while fall NDVI fluctuated between representing senesced vegetation and clouds/snow. Additionally, by fitting multi-year data, the NDVI value of snow-free surfaces after fall leaf senescence can be estimated.
Article
Geosciences, Multidisciplinary
Mitiku Adisu Worku, Gudina Legese Feyisa, Kassahun Ture Beketie, Emmanuel Garbolino
Summary: In this study, the spatiotemporal dynamics of vegetation and its relationship with climate variables in the Borana rangelands of southern Ethiopia were analyzed. Moderate resolution imaging spectroradiometer (MODIS) normalized difference vegetation index (NDVI) data and climate data from 2000 to 2018 were used to assess vegetation dynamics at annual and seasonal scales. The study revealed the dominance of sparse vegetation, especially shrubs and grasslands, in the study area. Climate variables, particularly rainfall, significantly influenced vegetation conditions. The findings can contribute to the development of effective intervention policies and sustainable rangeland management.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Ecology
Fan Liu, Chuankuan Wang, Xingchang Wang
Summary: Specific VIs are effective in capturing the phenology of GPP, but not the peak, while integral VIs have the potential to reflect the inter-annual variation in GPP.
ECOLOGICAL PROCESSES
(2021)
Article
Ecology
Katarina Zabret, Mojca Sraj
Summary: Rainfall partitioning involves three components: rainfall interception, throughfall, and stemflow, with the latter being influenced by various factors. A study analyzing the impact of rainfall event characteristics and phenoseasons on stemflow development identified four characteristic types of stemflow response. These responses provide insights into the proportion of rainfall reaching the ground as stemflow.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2021)
Article
Agronomy
Wenjun Zuo, Jingjing Mao, Jiaqi Lu, Zhaowen Zheng, Qin Han, Runjia Xue, Yongchao Tian, Yan Zhu, Weixing Cao, Xiaohu Zhang
Summary: Artificial irrigation is crucial for enhancing soil moisture and ensuring crop growth, but mismanagement could result in ecological and environmental issues. Mapping and comprehending changes in irrigated areas are vital for optimal water resource management. This study focused on China's winter wheat region and utilized crop phenological characteristics and soil moisture time series to generate an irrigated area map.
Article
Entomology
Federico Romiti, Arianna Ermenegildi, Adele Magliano, Pasquale Rombola, Donatella Varrenti, Roberto Giammattei, Silvia Gasbarra, Simona Ursino, Luca Casagni, Andrea Scriboni, Vincenzo Puro, Amilcare Ruta, Laura Brignola, Oriano Fantasia, Daniela Corpolongo, Giuseppe Di Luzio, Claudio De Liberato
Summary: The study of a 3-year monitoring of Asian tiger mosquito in Central Italy showed that temperature and photoperiod are key factors influencing egg abundance and activity period, while fine-scaled spatial characteristics also play an important role.
JOURNAL OF MEDICAL ENTOMOLOGY
(2021)