Article
Multidisciplinary Sciences
Martin Calderon-Juarez, Gertrudis Hortensia Gonzalez-Gomez, Juan C. Echeverria, Claudia Lerma
Summary: Aging is commonly seen as a process where the complexity of physiological time series and organ systems gradually decreases. However, research on heart rate variability (HRV) suggests that despite a decline in statistical distribution, nonlinear organization remains present in advanced age. By analyzing HRV time series of 1121 healthy individuals aged 18 to 92, it was found that the percentage of nonlinear time series significantly diminishes after the age of 30. Additionally, BMI and HR are associated with more linear information in HRV, while female gender is associated with the manifestation of nonlinear information.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Johannes Nauta, Pieter Simoens, Yara Khaluf, Ricardo Martinez-Garcia
Summary: Increased fragmentation caused by habitat loss poses a major threat to animal populations, and the impact depends on the movement rate between spatially separated patches. This study uses a spatially explicit predator-prey model to investigate how fragmentation and optimal foraging behavior interact to affect predator-prey interactions and ecosystem stability. The results show that the Levy exponent and degree of fragmentation jointly determine coexistence probabilities, and in highly fragmented landscapes, only scale-free predators can coexist with prey.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2022)
Article
Multidisciplinary Sciences
Katherine J. Leitch, Francesca Ponce, William B. Dickson, Floris van Breugel, Michael H. Dickinson
Summary: Research using fruit flies as a model species shows that insect dispersal behavior can be influenced by wind under specific conditions. Through release-and-recapture experiments, it was observed that even tiny fruit flies could disperse tens of kilometers in light winds. An agent-based model explains the specific behaviors of fruit flies during dispersal, depicting a balance between covering large distances while intercepting odor plumes from upwind sources.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biology
Serena Dipierro, Giovanni Giacomin, Enrico Valdinoci
Summary: This article discusses the optimality of several efficiency functionals in relation to the Levy exponent of a forager diffusing via a fractional heat equation. Different biological scenarios are considered and the results are compared with existing paradigms. Bifurcation phenomena are discovered, revealing a switch between optimal Levy foraging pattern and classical Brownian motion strategy.
JOURNAL OF MATHEMATICAL BIOLOGY
(2022)
Article
Agriculture, Multidisciplinary
Ge Shi-shuai, He Li-mei, He Wei, Yan Ran, Kris A. G. Wyckhuys, Wu Kong-ming
Summary: The fall armyworm arrived in China in late 2018 and has since spread across eastern Asia. Research shows that the flight performance of the fall armyworm is stronger at 20-25 degrees Celsius and 60-90% relative humidity, but flight parameters gradually decrease over five consecutive nights. This study provides baseline information for predicting changes in the geographical distribution, movement patterns, and invasion trajectories of the fall armyworm.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)
Article
Agriculture, Multidisciplinary
Ge Shi-shuai, He Wei, He Li-mei, Yan Ran, Zhang Hao-wen, Wu Kong-ming
Summary: The study found that appropriate flight activity of the fall armyworm significantly speeds up the reproductive process, enhancing our understanding of its migratory biology.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)
Article
Environmental Sciences
Christopher R. Sasso, Paul M. Richards, Scott R. Benson, Michael Judge, Nathan F. Putman, Derke Snodgrass, Brian A. Stacy
Summary: The study found that adult leatherback turtles foraging in the northeastern Gulf of Mexico mainly feed along the west Florida continental shelf, with some females traveling to nesting beaches in the Caribbean, while a few individuals forage in waters of the central Gulf of Mexico.Migration of adult females through the Yucatan Channel indicates its seasonal importance for Caribbean nesting assemblages.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Multidisciplinary Sciences
W. James Grecian, Garry B. Stenson, Martin Biuw, Lars Boehme, Lars P. Folkow, Pierre J. Goulet, Ian D. Jonsen, Aleksander Malde, Erling S. Nordoy, Aqqalu Rosing-Asvid, Sophie Smout
Summary: This study investigated the development of migratory and dive behavior in juvenile harp seals during their first year. The results showed similarities in migratory movements and differences in diving behavior between different breeding populations of harp seals. The study also highlighted the influence of intrinsic and extrinsic factors on shaping early life behavior.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Ecology
Liam K. Kendall, John M. Mola, Zachary M. Portman, Daniel P. Cariveau, Henrik G. Smith, Ignasi Bartomeus
Summary: The size and sociality of species have an effect on their potential and realized foraging ranges. Larger body size corresponds to larger potential and realized ranges. Highly eusocial species have larger realized foraging ranges than primitively eusocial or solitary taxa.
Article
Ecology
Nina Dehnhard, Andrew R. Klekociuk, Louise Emmerson
Summary: Research on procellariiform seabirds in Antarctica found that different species have varying flight speeds influenced by wind conditions and changes in body mass. While headwinds decrease ground speeds, Antarctic petrels show stronger responses to wind changes. Birds typically do not adjust flight direction based on wind direction, but they do take advantage of favorable wind conditions for their commutes.
ECOLOGY AND EVOLUTION
(2021)
Article
Zoology
Deni Purwandana, Claudio Ciofi, M. Jeri Imansyah, Achmad Ariefiandy, Heru Rudiharto, Tim S. Jessop
Summary: Komodo Dragons undergo a dietary transition at around 18 kg, switching from consuming small prey to dispersed adult ungulates. Changes in movement behaviors and home range areas are influenced by body mass and the proportion of adult ungulates consumed. These adaptations optimize resource use in the environment for the Komodo Dragons.
ICHTHYOLOGY AND HERPETOLOGY
(2021)
Article
Multidisciplinary Sciences
Federico Tommasi, Lorenzo Fini, Stefano Focardi, Fabrizio Martelli, Giacomo Santini, Stefano Cavalieri
Summary: Random walks are a common phenomenon in nature and can be observed in various contexts. These phenomena are predicted to share a common feature called Invariance Property (IP). In this paper, the IP in a virtual medium inside an open environment is studied by analyzing the movements of the grazer mollusc Acanthopleura granulata. The results deviate from the predictions made by the IP, indicating the influence of the dimension of the medium and the characteristics of animal movements.
SCIENTIFIC REPORTS
(2022)
Article
Ecology
Alessandra Iannino, Patrick Fink, Alexander Tim Ludwig Vosshage, Markus Weitere
Summary: Both the quantity and quality of food resources can have a strong impact on the foraging behaviors of herbivores, which affects the control of primary producer biomass. The effects of nutrient enrichment on herbivore foraging and top-down control are not well understood. In this study, a two-factorial experiment was conducted to investigate the effects of nutrient enrichment on grazing activity and algal biomass removal.
Article
Behavioral Sciences
Jessica Meade, John M. Martin, Justin A. Welbergen
Summary: Urbanization creates new ecological spaces for some species while also leading to conflicts between humans and wildlife. This study examines the movement patterns of grey-headed flying-foxes in urban and non-urban environments, finding that the urbanization of flying-foxes is driven by the increased availability of food resources in urban areas, with nomadic individuals visiting urban areas more frequently.
BEHAVIORAL ECOLOGY
(2021)
Article
Behavioral Sciences
Fabrizio Manco, Stephen D. J. Lang, Philip N. Trathan
Summary: In this study, researchers used video cameras and tracking devices to observe the foraging behavior of chinstrap penguins. By analyzing the collected data from the footage, they were able to accurately predict the outcome of each foraging dive and identify indicators for krill and swarm encounters.
BEHAVIORAL ECOLOGY
(2022)
Article
Multidisciplinary Sciences
Jose Luis Gomez-Melara, Rufino Acosta-Naranjo, Alba Castellano-Navarro, Victor Beltran Frances, Alvaro Lopez Caicoya, Andrew J. J. MacIntosh, Risma Illa Maulany, Putu Oka Ngakan, Federica Amici
Summary: Rank predicts access to food in several species, with subordinates relying on specific tactics to get a share of resources. More despotic species have subordinates more likely to use specific food retrieval tactics, such as collecting food when dominants cannot see it, attacking others, dissimulating, or storing food. This study provides insights into the social conditions that lead to the emergence of tactical deception.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Alba Castellano-Navarro, Emilio Macanas-Martinez, Zhihong Xu, Federico Guillen-Salazar, Andrew J. J. MacIntosh, Federica Amici, Anna Albiach-Serrano
Summary: Japanese macaques can respond flexibly to human gaze depending on the context, interpreting direct gaze as a sign of threat and adapting behavior to attentional cues. They do not seem to take the visual perspective of a human competing with them over food, suggesting potential limitations in their understanding of intentions in competitive situations.
SCIENTIFIC REPORTS
(2021)
Article
Parasitology
Liesbeth Frias, Hideo Hasegawa, Tock H. Chua, Symphorosa Sipangkui, Danica J. Stark, Milena Salgado-Lynn, Benoit Goossens, Kenneth Keuk, Munehiro Okamoto, Andrew J. J. MacIntosh
Summary: Parasites play important roles in ecosystems, but their complex interactions and roles remain poorly understood. This study in Sabah, Malaysian Borneo, found that parasite communities differ between nocturnal and diurnal primates, with soil-transmitted helminths being widespread. The findings provide new insights into parasite diversity in primate communities and highlight the need for further research in Asia and beyond.
INTERNATIONAL JOURNAL FOR PARASITOLOGY
(2021)
Article
Evolutionary Biology
Marion Cheron, Lea Raoelison, Akiko Kato, Yan Ropert-Coudert, Xavier Meyer, Andrew J. J. MacIntosh, Francois Brischoux
Summary: The study found that locomotion and behavior of spined toad tadpoles undergo significant changes across developmental stages, showing a curvilinear relationship with a phase of increasing activity followed by a phase of stasis and/or reduction. The peak of activity and associated behavior occurs at a pivotal stage when somatic growth decreases and significant morphological changes occur.
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2021)
Article
Ecology
Cecile Sarabian, Raphael Belais, Andrew J. J. MacIntosh
Summary: The study found that avoidance of contaminated food in bonobos was negatively correlated with Balantioides coli infection, a potentially pathogenic protozoan. However, the relationship between feeding decisions and infection may be weakened when food options are limited and contamination levels are high, causing most subjects to avoid the presented food items.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Ecology
Valeria Romano, Cedric Sueur, Andrew J. J. MacIntosh
Summary: Social structure plays a crucial role in regulating information and pathogen transmission through social contact or proximity, which can impact individual fitness. Individuals navigate between the costs and benefits of social relationships, leading to network plasticity. Further research on the tradeoff between social transmission and evolutionary processes could open new avenues in the fields of behavioral and evolutionary ecology.
Article
Zoology
Alba Castellano-Navarro, Victor Beltran Frances, Anna Albiach-Serrano, Andrew J. J. MacIntosh, Risma Illa Maulany, Putu O. Ngakan, Katja Liebal, Federica Amici
Summary: This study aimed to assess how dominance style predicts changes in maternal behavior through offspring development, and the link between maternal behavior and offspring behavior. The results showed that different species of macaques exhibited variations in maternal behavior, which may play an important role in shaping offspring's behavioral development.
AMERICAN JOURNAL OF PRIMATOLOGY
(2023)
Article
Marine & Freshwater Biology
Marion Cheron, Akiko Kato, Yan Ropert-Coudert, Xavier Meyer, Andrew J. J. MacIntosh, Lea Raoelison, Francois Brischoux
Summary: Environmental contamination is a significant driver of biodiversity loss, with wetlands being particularly vulnerable. This study investigated the effects of exposure to an herbicide on the development and behavior of spined toad tadpoles, finding that even low concentrations had significant impacts.
AQUATIC TOXICOLOGY
(2023)
Article
Mathematics, Interdisciplinary Applications
B. E. N. J. A. M. I. N. Beltzung, L. I. S. O. N. Martinet, Andrew J. J. Macintosh, X. A. V. I. E. R. Meyer, Jerome Hosselet, M. A. R. I. E. Pele, C. E. D. R. I. C. Sueur
Summary: This study investigates the drawing behavior by analyzing the intermittent process between drawing and interruption. Finger-drawings on a touchscreen were collected from 185 individuals, and the complexity of each drawing sequence was measured to assess how it develops with age. The results show that younger children draw in a more stereotypical way with long-range dependence, while older children and adults exhibit increased complexity and less predictable behavior in their drawings.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2023)
Article
Multidisciplinary Sciences
Zhihong Xu, Andrew J. J. MacIntosh, Alba Castellano-Navarro, Emilio Macanas-Martinez, Takafumi Suzumura, Julie Duboscq
Summary: This study found a relationship between social network centrality and gastrointestinal helminth infection intensity in a group of Japanese macaques, but also showed that excluding portions of the group could influence this relationship. The study highlights the importance of accounting for sampling bias in research on social transmission and parasitism.
Review
Ecology
Cecile Sarabian, Anna Wilkinson, Marie Sigaud, Fumihiro Kano, Jorge Tobajas, Anne-Sophie Darmaillacq, Gladys Kalema-Zikusoka, Joshua M. Plotnik, Andrew J. J. MacIntosh
Summary: Disgust is an adaptive system that has evolved to reduce the risk of becoming sick. Little is known about disease avoidance mechanisms and outcomes in wild animals. Contemporary methods in animal ecology provide a flexible toolbox for testing disgust in different habitats. This review proposes an empirical framework for testing the adaptive function of disgust and its associated disease avoidance behaviors across species.
JOURNAL OF ANIMAL ECOLOGY
(2023)
Article
Zoology
Wanyi Lee, Takashi Hayakawa, Mieko Kiyono, Naoto Yamabata, Hiroto Enari, Haruka S. Enari, Shiho Fujita, Tatsuro Kawazoe, Takayuki Asai, Toru Oi, Takashi Kondo, Takeharu Uno, Kentaro Seki, Masaki Shimada, Yamato Tsuji, Abdullah Langgeng, Andrew Macintosh, Katsuya Suzuki, Kazunori Yamada, Kenji Onishi, Masataka Ueno, Kentaro Kubo, Goro Hanya
Summary: This study investigates the influence of host genetic distance, geographic distance, and dietary factors on the gut microbiome of Japanese macaques. The results suggest that dietary factors play a stronger role in shaping the gut microbiome, while host genetics have limited effects, especially among closely related mammalian hosts.
AMERICAN JOURNAL OF PRIMATOLOGY
(2023)
Article
Biodiversity Conservation
Raquel F. P. Costa, Valeria Romano, Andre S. Pereira, Jordan D. A. Hart, Andrew MacIntosh, Misato Hayashi
Summary: Gorilla tourism helps protect the ecosystem and benefits both humans and wildlife populations. A study was conducted to assess how the presence and proximity of tourists affect gorilla social cohesion. The study found that gorillas spent more time in closer association after tourists arrived and when tourists were within 3 meters of them, indicating that they perceive tourists as a risk.
CONSERVATION SCIENCE AND PRACTICE
(2023)
Article
Biology
Valeria Romano, Amy Lussiana, Katy M. Monteith, Andrew J. J. MacIntosh, Pedro F. Vale
Summary: This study investigates the modification of group social behavior during bacterial infection in fruit flies, taking into account pathogen species, infectious dose, host genetic background, and sex. The results show that systemic infection with different bacterial species leads to a reduction in the mean pairwise distance within infected female flies, with the extent of this change depending on the pathogen species. However, susceptible flies do not exhibit avoidance behavior in the presence of infected flies. Additionally, there is genetic- and sex-based variation in social aggregation within infected, same-sex groups, with infected female flies aggregating more closely than infected males. These findings highlight the importance of considering the effects of bacterial infection on fruit fly behavior and the variation that exists between different genetic backgrounds and sexes.
Article
Anthropology
Ian Towle, Andrew J. J. MacIntosh, Kazuha Hirata, Mugino O. Kubo, Carolina Loch
Summary: This study examined atypical tooth wear in a wild Japanese macaque population and compared it to non-provisioned populations. The results showed that all individuals analyzed exhibited atypical tooth wear, which is likely caused by accidental ingestion of sand and oral processing of marine mollusks. No evidence of tool use or cultural habits was observed.
AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY
(2022)
