Article
Forestry
A. S. Mathys, P. Brang, J. Stillhard, H. Bugmann, M. L. Hobi
Summary: This study assessed the tree population dynamics over the past 60 years in the Swiss forest reserve network, finding a general decline in the density of dominant species, particularly light-demanding species, but an increase in species richness, especially in the colline vegetation zone. Both species-specific ingrowth and tree mortality were influenced by stand density and climate variables.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Biodiversity Conservation
Alejandro de la Fuente, Alejandro Navarro, Stephen E. Williams
Summary: Climate-driven biodiversity erosion is escalating rapidly, especially in tropical ecosystems. The impact of different climatic stressors on rainforest bird populations in the Australian Wet Tropics between 2000 and 2016 was investigated. The study found that warming and changes in rainfall patterns had a strong effect on bird populations, with lowland species benefiting while upland species showing a negative response.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Multidisciplinary Sciences
William D. Gosling, Charlotte S. Miller, Timothy M. Shanahan, Philip B. Holden, Jonathan T. Overpeck, Frank van Langevelde
Summary: This study explores the relative importance of six drivers of vegetation change in western Africa over the past 500,000 years by combining past environmental change data from Lake Bosumtwi in Ghana with global data. The results show that moisture availability and fire activity were the most important factors in determining woody cover, while the effect of CO2 was small.
Article
Ecology
Andrew J. Felton, Robert K. Shriver, Michael Stemkovski, John B. Bradford, Katharine N. Suding, Peter B. Adler
Summary: Rapid climate change can exceed ecosystems' adaptability, with consequences for ecosystem functioning often overlooked in climate change impact projections. Uncertainties related to climate disequilibrium are found to be a dominant source of uncertainty in long-term ecological response projections, with the importance of understanding and regulating climate disequilibrium processes emphasized for improving predictions and management.
Article
Agriculture, Dairy & Animal Science
S. J. Harrison, P. B. Siegel, C. F. Honaker, R. M. Lewis
Summary: The population dynamics of 2 lines of chickens from a long-term selection experiment were assessed based on pedigree data. It was found that the 2 lines maintained similar population structures over the selection horizon, allowing reliable comparisons of their performance data.
Editorial Material
Plant Sciences
Kazumi Nakabayashi, Gerhard Leubner-Metzger
Summary: Predicting weed emergence in crop production systems is a global challenge that requires understanding mechanisms of weed ecology and trait evolution in response to climate change and altered agricultural practices. Seed dormancy, which controls germination by defining environmental conditions, plays a key role in weed soil seed bank persistence and seedling emergence timing. Integrating seed dormancy dynamics in variable field environments across generations is essential for more sustainable weed management strategies.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Environmental Sciences
Jochem O. Klompmaker, Francine Laden, Peter James, M. Benjamin Sabath, Xiao Wu, Joel Schwartz, Francesca Dominici, Antonella Zanobetti, Jaime E. Hart
Summary: Long-term exposure to high or low temperatures is associated with an increased risk of cardiovascular disease hospitalization. The associations of summer and winter average temperatures with cardiovascular disease hospitalizations differ by demographics and relative humidity levels.
ENVIRONMENTAL RESEARCH
(2023)
Article
Ecology
Noelle G. G. Beckman, Ray Dybzinski, David Tilman
Summary: Mounting evidence suggests that plant-soil feedbacks (PSF) may determine plant community structure. However, short-term PSF predictions do not match the outcomes of long-term field experiments involving competing plants.
Article
Ecology
Ainhoa Magrach
Summary: The importance of abiotic and biotic factors in determining the abundance of wild pollinators varies across their life cycles. Climate conditions, floral resource availability, and previous life-stage abundances directly impact population dynamics.
JOURNAL OF ANIMAL ECOLOGY
(2023)
Article
Environmental Sciences
Jochem O. Klompmaker, Francine Laden, Peter James, M. Benjamin Sabath, Xiao Wu, Francesca Dominici, Antonella Zanobetti, Jaime E. Hart
Summary: The study found that long-term exposure to higher summer specific humidity and humidity variability was positively associated with cardiovascular disease hospitalization risk, especially among beneficiaries eligible for Medicaid and beneficiaries with an unknown or other race.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Engineering, Civil
Jun Zhong, Si-Liang Li, Xuetao Zhu, Jing Liu, Sen Xu, Sheng Xu, Cong-Qiang Liu
Summary: Carbon-climate feedback in the Qinghai-Tibet Plateau is sensitive, with DIC and DOC concentrations varying with changes in runoff, indicating hydro-biogeochemical controls on carbon dynamics. Increased runoff leads to accelerated organic carbon degradation, resulting in the production of DOC.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Terence Darlington Mushore, Onisimo Mutanga, John Odindi
Summary: This study evaluates the impact of urban growth on thermal characteristics using long term changes in local climate zones in the Bulawayo metropolitan city. The results show that the growth of built local climate zones was faster, with a significant increase in light weight low rise buildings and a reduction in dense forest. The invasion of vegetation and wetlands by built-up areas leads to anthropogenic warming in the city.
Article
Geosciences, Multidisciplinary
Ada Gjermundsen, Aleksi Nummelin, Dirk Olivie, Mats Bentsen, Oyvind Seland, Michael Schulz
Summary: Southern Ocean deep convection plays a major role in the intermodel spread of effective climate sensitivity estimates in CMIP6 models, with greater heat storage at depth delaying surface and global warming by centuries. The link between Southern Ocean convection and effective climate sensitivity is consistent across 41 CMIP6 models, showing significant deep ocean warming in low-sensitivity models. The results highlight the influence of Southern Ocean convection on potential long-term climate warming.
Article
Ecology
Narendra Kumar, Chaitanya P. Nath, Kali K. Hazra, Chandra S. Praharaj, Sati S. Singh, Narendra P. Singh
Summary: The study examined the impact of different residue management approaches on above- and below-ground weed density and diversity. Results showed that zero tillage with residue management reduced underground weed seed density but increased above-ground weed density.
ECOLOGICAL ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Megumi O. Chikamoto, Pedro DiNezio, Nicole Lovenduski
Summary: Oceanic absorption of atmospheric carbon dioxide is expected to slow down due to increasing anthropogenic emissions. Through an Earth system simulation, it has been found that reductions in surface alkalinity will cause a slowdown in anthropogenic carbon uptake in the next three centuries. Changes in precipitation, evaporation, and warming intensify the stratification of the upper ocean, hindering the transport of alkaline water from the deep. These changes are further amplified by reduced carbonate buffering, indicating the dominance of alkalinity in controlling CO2 uptake on multi-century timescales. The simulation also reveals a previously unknown alkalinity-climate feedback loop, amplifying multi-century warming under high emission trajectories.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Entomology
Gabriel Picapietra, Jose L. Gonzalez-Andujar, Horacio A. Acciaresi
Summary: A predictive seedling emergence model based on thermal time was developed and validated for Junglerice, an important annual weed affecting crops in Argentina. The study found that the variations in mean air temperature between late August and early September have a close linear relationship with the beginning of seedling emergence, with a double-logistic model fitting Junglerice seedling emergence better than other functions. Model validation showed high performance in predicting seedling emergence, indicating the potential to contribute to rational weed management.
INTERNATIONAL JOURNAL OF PEST MANAGEMENT
(2021)
Article
Biodiversity Conservation
Jose T. Montero, Mauricio Lima, Sergio A. Estay, Enrico L. Rezende
Summary: The study examined the swap in abundance of two Calanus species in the North Sea during the 1980s, attributing the regime shift to changes in primary productivity, NAO, and SST. The analysis revealed a complex interaction between species-specific attributes, population dynamics, and ecological drivers influencing the observed abundance switch between the two species.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Agronomy
Fortunato de Bortoli Pagnoncelli Junior, Michelangelo Muzell Trezzi, Helis Marina Salomao, Katia Cristina Hartmann, Jose Luis Gonzalez-Andujar
Summary: This study developed and validated an empirical emergence model of Italian ryegrass based on soil thermal time, with the Gompertz model showing the best performance. The model predicted Italian ryegrass emergence start, 50% emergence, and 90% emergence time. Validation results demonstrated the model's good performance in predicting Italian ryegrass emergence.
ACTA SCIENTIARUM-AGRONOMY
(2021)
Article
Geography, Physical
Sergio A. Estay, Daniela N. Lopez, Carmen P. Silva, Eugenia M. Gayo, Virginia McRostie, Mauricio Lima
Summary: This study estimated the historical population size of the Kawesqar people using direct and indirect evidence. The results indicate a population range of approximately 3700 to 3900 individuals before the massive contact with Chileans and European people.
Article
Biology
Matias Arim, Daniel Herrera-Esposito, Paola Bermolen, Alvaro Cabana, Maria Ines Fariello, Mauricio Lima, Hector Romero
Summary: This study reveals the contact tracing saturation phenomenon induces an Allee effect, which affects the transition between containment and outbreak states. The timing of implementing and relaxing non-pharmaceutical interventions is crucial for their effectiveness. Combining different strategies can enhance disease control potential.
JOURNAL OF THEORETICAL BIOLOGY
(2022)
Article
Infectious Diseases
Felipe Augusto Maurin Krsulovic, Timothy Peter Moulton, Mauricio Lima, Fabian Jaksic
Summary: This study explores the dynamics of malaria cases in the Oromia region in Ethiopia and investigates the interaction between minimum temperature, HIV, poverty, population size, and social instability. The results suggest a negative endogenous process in malaria dynamics and weak evidence to support the climate change hypothesis.
Article
Agronomy
Eva Hernandez Plaza, Fernando Bastida, David J. Gibson, Francisco Barro, Maria J. Gimenez, Yesica Pallavicini, Jordi Izquierdo, Jose L. Gonzalez-Andujar
Summary: The structure of weed communities, including their composition, taxonomic diversity, and functional diversity, can explain the variability in crop quality. In this study, weed communities in 26 Spanish wheat fields managed either organically or conventionally were analyzed. The relationship between crop quality and weed community variables was examined, taking into account environmental factors. It was found that nitrogen fertilization, previous crop, and precipitation had significant effects on wheat grain protein concentration and composition. The impact of weed communities on grain quality was limited, with only a small increase in the model's explanatory power. Understanding the mechanisms behind weed effects on crop quality can help in designing sustainable weed management practices.
Article
Ecology
Mauricio Lima, Jennifer Paola Correa-Cuadros, Sergio Henriquez, Fabian M. Jaksic
Summary: This study investigates the impact of rainfall variability on rodent population dynamics in semiarid Chile. The results show that the El Nino Southern Oscillation-driven rainfall pulses are associated with rodent outbreaks, and that interspecific competition is influenced by rainfall variability.
Article
Multidisciplinary Sciences
Fatemeh Mohammadkhani, Majid Pouryousef, Ali Reza Yousefi, Jose L. Gonzalez-Andujar
Summary: This study evaluated the impact of the saffron-chickpea intercropping system on weed density, biomass, and diversity under two irrigation regimes. The results indicated that one-time irrigation and a 1:1 or 2:2 intercropping ratio can effectively manage weeds.
Review
Multidisciplinary Sciences
Javier Lopez-Tirado, Jose L. Gonzalez-Andujar
Summary: Climate change is a global concern with severe consequences, prompting the need for continuous investigation of agriculture to improve its efficiency. Weeds have played a crucial role in this regard, especially with the increase in tourism and international trade. Species distribution models (SDMs) have been used to study the relationship between weeds and climate change. A review of articles published since 2017 found that the most studied species, scale and location of studies, algorithms used, validation parameters, global change scenarios, variables, and data sources varied. The imbalance between developed and developing countries in terms of published articles highlights the need for more research, particularly in densely populated developing countries.
Article
Agronomy
Kambiz Mootab Laleh, Majid Ghorbani Javid, Iraj Alahdadi, Elias Soltani, Saeid Soufizadeh, Jose Luis Gonzalez-Andujar
Summary: Diminishing yield gaps is a crucial issue in developing nations. This study evaluated the yield gap of wheat fields using comparative performance analysis techniques and identified contributing factors and potential yield. The results showed a yield gap of 3748 kg/ha, which accounted for 40.23% of the potential yield. Factors such as leaf chlorophyll, irrigation, and soil salinity contributed to the yield gap. Therefore, developing nations can effectively utilize these techniques to increase crop production.
Article
Agronomy
Jose L. Gonzalez-Andujar, Maria J. Aguilera, Rene Van Acker
Summary: This study presents a new methodology for determining the relative competitiveness of weed species based on population dynamics theory. The results showed that different weeds have different competitive abilities on different crops, with weaker interspecific competition and stronger intraspecific competition.
Article
Biology
Patricia Gubelin, Jennifer Paola Correa-Cuadros, Maria Isidora Avila-Thieme, Gabriela Flores-Benner, Melanie Duclos, Mauricio Lima, Fabian M. Jaksic
Summary: The European rabbit is a major invasive species in Chile, where it has established itself for around 150 years. It plays a crucial role in the food web of ecosystems in Chile, impacting other species both positively and negatively. The analysis of its role in the food web provides insights into the importance of invasive species in the local community and helps in managing the rabbit population.
Editorial Material
Agronomy
Jose L. Gonzalez-Andujar
Article
Plant Sciences
Fortunato D. B. Pagnoncelli, Michelangelo M. Trezzi, Helis M. Salomao, Katia C. Hartmann, Patricia B. Pereira, Jose L. Gonzalez-Andujar
Summary: Italian ryegrass populations exhibit differences in seedling emergence, survival, and reproductive traits under different environmental conditions and densities. Glyphosate-resistant plants show lower seed production compared to susceptible plants and exhibit density-dependent regulation. Understanding the demographic parameters of Italian ryegrass can help in developing rational control strategies.
ADVANCES IN WEED SCIENCE
(2021)
