Article
Multidisciplinary Sciences
Douglas Lawton, Anders S. Huseth, George G. Kennedy, Amy C. Morey, William D. Hutchison, Dominic D. Reisig, Seth J. Dorman, DeShae Dillard, Robert C. Venette, Russell L. Groves, John J. Adamczyk, Izailda Barbosa Dos Santos, Tracey Baute, Sebe Brown, Eric Burkness, Ashley Dean, Galen P. Dively, Helene B. Doughty, Shelby J. Fleischer, Jessica Green, Jeremy K. Greene, Krista Hamilton, Erin Hodgson, Thomas Hunt, David Kerns, Billy Rogers Leonard, Sean Malone, Fred Musser, David Owens, John C. Palumbo, Silvana Paula-Moraes, Julie A. Peterson, Ricardo Ramirez, Silvia I. Rondon, Tracy L. Schilder, Abby Seaman, Lori Spears, Scott D. Stewart, Sally Taylor, Tyler Towles, Celeste Welty, Joanne Whalen, Robert Wright, Marion Zuefle
Summary: Overwintering success is crucial for the population dynamics of agricultural pests, and our study shows that the population dynamics of Helicoverpa zea in North America are structured into three geographic zones. The southern range is expanding while the other zones are projected to decrease in the future. This suggests that larger populations may persist in higher latitudes due to reduced low-temperature lethal events during winter.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Biology
Robert Stephen Cantrell, Chris Cosner, Ying Zhou
Summary: In this paper, an integrodifference equation model and pairwise invasion analysis are used to investigate evolutionarily stable dispersal strategies in the presence of spatial heterogeneity and possibly seasonal variation in habitat suitability. The findings suggest that dispersal strategies associated with ideal free distributions are evolutionarily stable.
JOURNAL OF MATHEMATICAL BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Alan Fecchio, Henrique Batalha-Filho, Janice H. Dispoto, Jeffrey A. Bell, Jason D. Weckstein
Summary: Amazonia serves as the main source of diversity for haemosporidian parasites in South America, but our understanding of their biogeographical processes and contributions from different areas of endemism is incomplete. This study investigates the spatiotemporal evolution of Plasmodium and Parahaemoproteus parasites and finds that dispersal is the main driver of Plasmodium diversification, while duplication is more frequent in Parahaemoproteus. The results show that the Inambari area is the primary source of Plasmodium diversity on Marajó Island, but the island receives more Parahaemoproteus lineages from Cerrado habitats than any Amazonian area. The unique dispersal patterns and host-shifting ability of each parasite genus may have facilitated their diversification across Amazonia, with deep evolutionary history potentially constraining their colonization of Marajó Island.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2023)
Article
Entomology
David G. James, Maria C. Schaefer, Karen Krimmer Easton, Annie Carl
Summary: The population of western monarch butterflies has significantly decreased at coastal overwintering sites in California, while breeding populations have been increasingly found in the San Francisco Bay urban area. Research indicates that monarch butterflies are able to breed during winter using ornamental milkweeds in the South Bay urban area, and may migrate to the greater western US during spring.
Article
Mathematics
Efim Frisman, Matvey Kulakov
Summary: The article reviews bistability and quadro-stability phenomena in a certain class of mathematical models and generalizes the transition from bi- to quadro-stability. These models explain the differences in population numbers and allele frequencies, and explore the bifurcation mechanisms for bistability and quadro-stability.
Article
Ecology
Stephen F. Matter, Alessandro Filazzola, Jens Roland
Summary: Researchers found that the low synchrony among treatment subpopulations before the experimental extinction may have been due to less dispersal among treatment than control subpopulations. Population crashes inducing synchrony during and post-extinction periods appear to have had greater and more lasting effects on synchrony for treatment than control subpopulations. Further experiments are needed to test the hypothesis that local population extinction can increase synchrony in metapopulations, particularly for tightly regulated populations.
Article
Multidisciplinary Sciences
Avery P. Hill, Christopher B. Field
Summary: This study analyzes forest inventory data from the western US to test the hypothesis that wildfires can facilitate climate-induced range shifts in trees. Wildfires significantly increased the seedling range displacement for some tree species, indicating an important role of fire in influencing vegetation redistribution in response to climate change.
NATURE COMMUNICATIONS
(2021)
Article
Ecology
Guenchik Grosklos, Jia Zhao
Summary: This paper investigates the relationship between synchrony and oscillation types in a two-patch system and finds that dispersal has a significant impact on population dynamics. With low levels of dispersal, increasing synchrony drives oscillating populations towards equilibrium; with medium to high levels of dispersal, oscillations may arise from equilibrium with low levels of synchrony.
ECOLOGICAL MODELLING
(2023)
Article
Humanities, Multidisciplinary
Robert M. Beyer, Jacob Schewe, Hermann Lotze-Campen
Summary: Recent research has found limitations in widely used gravity models when describing spatiotemporal variations in international migration, raising concerns about the statistical validity of future predictions. This suggests that gravity models may not be suitable for informing policymakers about migration trajectories in the coming years and decades.
HUMANITIES & SOCIAL SCIENCES COMMUNICATIONS
(2022)
Article
Ecology
Dongmin Kim, Allison K. Shaw
Summary: Migration can minimize the risks and costs of parasite infection, with hosts using strategies of migration or tolerance to deal with infection. Combining two host defense strategies may not always benefit hosts, depending on the costs and benefits of the strategies and infection pressures.
JOURNAL OF ANIMAL ECOLOGY
(2021)
Article
Biology
Giacomo Zilio, Louise S. S. Norgaard, Claire Gougat-Barbera, Matthew D. D. Hall, Emanuel A. A. Fronhofer, Oliver Kaltz
Summary: The interaction between range expansion and parasite treatments affects the evolution of host dispersal syndromes, with front populations showing different associations of growth parameters and swimming behaviors than core populations. Parasitism reshapes trait associations, with hosts evolved in the presence of the parasite exhibiting increased resistance and reduced dispersal.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Biodiversity Conservation
C. Horswill, M. J. Wood, A. Manica
Summary: This study investigates the immigration dynamics of a long-lived colonial seabird and finds that the contribution of immigration to a declining population can have dramatic consequences, emphasizing the importance of temporal analyses of dispersal to protect population viability.
Review
Ecology
Murray G. Efford, Matthew R. Schofield
Summary: The article discusses the critical issues of survival rate and recruitment rate in population management, introduces the movement component and related issues in open population spatially explicit capture-recapture models, and provides detailed explanations through simulations and case studies. It shows that the flexible 2-parameter kernels, such as the bivariate t$$ t $$-distribution, are more suitable than the popular bivariate normal distribution, leading to higher estimates of survival; there may be problems in the movement models when dealing with data of different distances, calling for more complete and consistent reporting.
METHODS IN ECOLOGY AND EVOLUTION
(2022)
Article
Biology
Carolin Grumbach, Femke N. Reurik, Juan Segura, Daniel Franco, Frank M. Hilker
Summary: This study provides a comprehensive overview of two-patch models with symmetric dispersal and two standard population growth functions. It analyzes the response of the asymptotic total population size to increasing dispersal rate and reveals four different response scenarios. The findings improve our understanding of how conservation efforts can affect population size.
JOURNAL OF MATHEMATICAL BIOLOGY
(2023)
Article
Multidisciplinary Sciences
Takaomi Arai, Hussein Taha
Summary: This study investigated the population structure of three tropical eel species distributed widely in the Indo-Pacific region through DNA sequence analysis, revealing that A. bicolor bicolor may have two genetically distinct populations geographically co-occurring in the region, while A. marmorata and A. bengalensis bengalensis may have a panmictic-population structure. This is the first study to explore the population genetic structure of A. bengalensis bengalensis and also suggests possible dispersion and migration patterns of these tropical species into their continental habitats.