Article
Agriculture, Dairy & Animal Science
Oleg Askeyev, Arthur Askeyev, Igor Askeyev, Tim Sparks
Summary: In this study, the first arrival dates of 31 migrant bird species in the Tatarstan Republic of Russia were investigated. Most of these species advanced their migration during the study period. The study found that higher spring temperatures in Tatarstan were associated with earlier arrival of these birds.
Article
Environmental Sciences
Lingwen Dong, Chaoyang Wu, Xiaoyue Wang, Na Zhao
Summary: Wind speeds have undergone significant changes in Europe over the past few decades, which have important implications for terrestrial ecosystems. This study examines the effects of wind change on the spring leaf green-up date (GUD) and identifies factors that control the strength of these effects. The research finds that higher winds in the spring preseason contributed to delayed GUD for nearly 30% of Northern Hemisphere ecosystems, and that the increase in wind partially offset the earlier GUD caused by climate change. Higher wind speeds potentially delay GUD through changes in soil conditions and temperature differences. These findings highlight the role of wind change in spring phenology and suggest that future ecosystem models should consider these effects for a better understanding of vegetation responses to climate change.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Ecology
Kyle G. Horton, Sara R. Morris, Benjamin M. Van Doren, Kristen M. Covino
Summary: This study used bird banding records to examine the phenological responses of migratory birds, finding that warmer spring temperatures were associated with earlier migration for 16 out of 19 species. For every 1°C increase in temperature, the median passage date advanced by an average of 0.65 days. In the fall, the relationship between temperature and migration timing was weaker, with only 3 species showing a correlation. Projections suggest continued spring advancements and more variable shifts for fall migration under different climate scenarios.
JOURNAL OF ANIMAL ECOLOGY
(2023)
Article
Ecology
Elizabeth R. Ellwood, Amanda S. Gallinat, Caitlin McDonough MacKenzie, Tara Miller, Abraham J. Miller-Rushing, Caroline Polgar, Richard B. Primack
Summary: Concord, Massachusetts, USA has been an active site for phenological observations since 1851, with a time series of data spanning 118 years. These data have been invaluable for addressing issues such as climate change, conservation, and ecology.
Article
Ecology
Yaara Aharon-Rotman, John F. McEvoy, Yosef Kiat, Tal Raz, Gidon Y. Perlman
Summary: Many migratory species have advanced their migration timing due to advanced breeding conditions. In this study, researchers investigated the arrival timing changes of four migratory passerines in Israel and found that some species have advanced their arrival while others have not. The arrival timing was found to be associated with Enhanced Vegetation Index (EVI) at the African pre-departure sites and local temperatures at the stopover site.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Agronomy
Alison K. Post, Koen Hufkens, Andrew D. Richardson
Summary: Vegetation phenology plays a crucial role in ecological systems and climate processes. Existing models for predicting spring green-up date in temperate forests perform poorly in grassland systems. This study uses long-term datasets to test existing models and develop new ones that consider water availability. The best model performs well across all grassland types, with parameters optimized for each climate region. Running the model with projected climate data suggests changes in spring onset in temperature-limited sites, but the trend is unclear for precipitation-limited sites. This new phenology model improves our understanding and prediction of grassland dynamics, with implications for carbon and water cycling.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Environmental Sciences
Moxi Yuan, Xinxin Li, Sai Qu, Zuoshi Wen, Lin Zhao
Summary: Recent research has shown that the dynamics of autumn phenology have a significant impact on inter-annual changes in the carbon cycle. However, the shifts in autumn phenology and their governing factors have not been universally acknowledged. This study analyzes the dynamic characteristics of autumn phenology in the Yellow River Basin and identifies the main driving factors. The results indicate a significant delay in autumn phenology, with spring phenology being the most important factor. Different vegetation types are influenced by different driving factors, with drought having a greater impact on grasslands.
Article
Ecology
Johanna Hedlund, Thord Fransson, Cecilia Kullberg, Jan-Olov Persson, Sven Jakobsson
Summary: The study investigates the dynamics of protandry in a breeding population of willow warblers over 38 years, revealing that male arrival at the breeding site has advanced to a greater extent compared to females, leading to an increase in protandry. While no change in sex ratio was observed to explain the increase in protandry, significant temperature changes have been reported in the breeding area and along the migratory route.
ECOLOGY AND EVOLUTION
(2022)
Article
Biodiversity Conservation
Montague H. C. Neate-Clegg, Morgan W. Tingley
Summary: This study used a large amount of bird banding data to investigate the changes in spring and fall migratory phenology for different sexes and age classes of bird species. The results showed that adult males arrived first in spring, while immature females arrived last, consistent with protandry. In the fall, there was little difference between sexes, but adults tended to depart earlier than juveniles. Additionally, the study found that male birds were advancing their phenology at a faster rate compared to females, causing the gap between male and female arrival times to widen over time.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Environmental Sciences
Bo Fang, Zhiyong Yang, Miaogen Shen, Xiaoxu Wu, Junhua Hu
Summary: The study found that climate change affects the first-sighting date of barn swallows and the vegetation green-up onset date at breeding sites in northern China, but the asynchrony between these two dates did not significantly increase. Climate change may not greatly increase the phenological mismatch between the first arrival date of barn swallows and the vegetation green-up onset date at breeding sites.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Xiaolu Li, Toby Ault, Colin P. Evans, Flavio Lehner, Carlos M. Carrillo, Alison Donnelly, Theresa Crimmins, Amanda S. Gallinat, Mark D. Schwartz
Summary: Plant phenology regulates the carbon cycle and land-atmosphere coupling. Thermal and leaf area index (LAI) based indicators are used to characterize spring onset in CMIP6 models. Most models agree that spring has advanced in recent decades and will continue to arrive earlier with future warming. Thermal-based indicators estimate spring advances of -0.7 to -2.4 days/decade, while LAI-based indicators estimate -0.4 to -1 days/decade. Reconciling these discrepancies is critical for understanding future changes in spring onset.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Meteorology & Atmospheric Sciences
Jie Peng, Chaoyang Wu, Xiaoyue Wang, Linlin Lu
Summary: The study found a weakly delaying trend of autumn phenology (EOS) on the Tibetan Plateau, with spring phenology (SOS) playing a significant controlling role in the interannual variability of EOS. Temperature and precipitation had significant positive impacts on EOS, while radiation had a negative contribution.
INTERNATIONAL JOURNAL OF CLIMATOLOGY
(2021)
Article
Ecology
Chris Wyver, Simon G. Potts, Mike Edwards, Rowan Edwards, Stuart Roberts, Deepa Senapathi
Summary: Climate change has a diverse range of impacts on wild bees, including their phenology. This study analyzes the shifts in emergence dates of British wild bees over 40 years, showing widespread advances. Temperature is the key driver of this shift, with an average advance of 6.5 days per 1 degree Celsius warming. Species-specific variation is observed, highlighting the possible impact on the temporal structure of bee communities and pollination networks.
ECOLOGY AND EVOLUTION
(2023)
Article
Forestry
Mariah Casmey, Andreas Hamann, Uwe G. Hacke
Summary: This study examines the differences in heat sum and chilling requirements among different geographic populations of white spruce. The results show significant variations in heat sum requirements among regions and populations within regions, while no geographic differentiation is found for chilling requirements. The study suggests that white spruce can synchronize its phenology with the growing season under climate warming and northward migration can result in higher growth rates.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Multidisciplinary Sciences
Courtney R. Shuert, Marianne Marcoux, Nigel E. Hussey, Mads Peter Heide-Jorgensen, Rune Dietz, Marie Auger-Methe
Summary: This study provides evidence of significant delays in the timing of narwhal autumn migrations and suggests that narwhals are adopting strategic migration tactics in response to climate change. Male narwhals lead the migration out of the summering areas, while females with dependent young depart later. The time spent in summer areas is increasing at a similar rate to climate-driven sea ice loss.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)