Article
Behavioral Sciences
Francesca S. E. Dawson Pell, Ben J. Hatchwell, Jose G. Carrillo-Ortiz, Alba Ortega-Segalerva, Francesc Uribe, Juan Carlos Senar
Summary: Habitat selection has significant impacts on individual fitness. The natal habitat preference induction (NHPI) hypothesis proposes that individuals choose habitats that resemble the environment they experienced in early life. This study examined and tested the NHPI hypothesis in monk parakeets, an invasive species that nests primarily in pine or palm trees. The results showed that dispersed individuals and adult birds undertaking breeding dispersal preferred to nest in their natal tree type, demonstrating the influence of early life experiences on habitat selection.
Article
Ecology
Hugo Robles, Carlos Ciudad, Zeno Porro, Julien Fattebert, Gilberto Pasinelli, Matthias Tschumi, Marta Vila, Martin U. Grueebler
Summary: The study investigates the influence of phenotypic and environmental factors on dispersal movements of juvenile woodpeckers in fragmented landscapes. The results show that larger and healthier individuals tend to emigrate earlier and have shorter transfer durations. Female woodpeckers disperse earlier, move shorter distances, and have longer transfer durations compared to males. Patch size, patch quality, and population density also affect emigration age, transfer duration, and distance. The study highlights the importance of early-life conditions and edge hardness in shaping dispersal behavior and reveals the previously overlooked effect of habitat isolation on sex-biased dispersal.
Article
Ecology
Nathan D. Hooven, Matthew T. Springer, Clayton K. Nielsen, Eric M. Schauber
Summary: In this study, we investigated how animals exhibit a preference for new habitat that is similar to their natal environment, and how natal habitat cues influence path selection before settlement. By analyzing GPS collar relocation data of white-tailed deer in an agricultural landscape in Illinois, we found that preference for natal habitat similarity was weak during excursive movements but strong during dispersals, suggesting that NHPI is manifested during dispersal habitat selection. Our approach can be applied to various taxa and expand our understanding of individual behavioral variation and early life experience in shaping landscape connectivity and resistance.
ECOLOGY AND EVOLUTION
(2023)
Article
Multidisciplinary Sciences
David Serrano, Ainara Cortes-Avizanda, Inigo Zuberogoitia, Guillermo Blanco, Jose Ramon Benitez, Cecile Ponchon, Juan Manuel Grande, Olga Ceballos, Jon Morant, Eneko Arrondo, Jabi Zabala, Eugenio Montelio, Enrique Avila, Jose L. Gonzalez, Bernardo Arroyo, Oscar Frias, Erick Kobierzycki, Rafael Arenas, Jose Luis Tella, Jose Antonio Donazar
Summary: This study on Egyptian vultures found that dispersal distance is inversely related to population density, with females dispersing further than males. It also concluded that males are more sensitive to the social environment, indicating different dispersal tactics between the sexes.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
David Hohl, Teodora Stoycheva, R. Julia Kilgour, Elsa C. Anderson, Jalene M. LaMontagne
Summary: In urban ecosystems, tree cavities are influenced by tree health, management, and cavity excavators, and their formation and persistence are affected by changes in vegetation structure, human use patterns, and the built environment. Highly-managed parks and residential habitats have lower abundance of decayed trees and therefore fewer cavities compared to forests, while stability of cavity abundance over time is observed in managed habitats. The probability of cavity presence is increased with larger tree size and higher levels of tree decay, but this association varies between habitat types and years.
URBAN FORESTRY & URBAN GREENING
(2023)
Article
Ecology
Brian A. Hoover, Kristin M. Brunk, Gabriella Jukkala, Nathan Banfield, Andrew L. Rypel, Walter H. Piper
Summary: The study found that juvenile common loons tend to choose lakes with similar pH values to their natal lakes for foraging, while showing no specific preference for lakes of similar sizes.
ECOLOGY AND EVOLUTION
(2021)
Article
Multidisciplinary Sciences
Jacob E. Hill, Kenneth F. Kellner, Bryan M. Kluever, Michael L. Avery, John S. Humphrey, Eric A. Tillman, Travis L. DeVault, Jerrold L. Belant
Summary: Recent studies have shown that the increase in populations of turkey vultures and black vultures in North America is partly due to their ability to adapt to human-modified landscapes. It was found that landscape fragmentation and road density play a significant role in the roosting habitat selection of these species, while high density urban cover decreases their roosting probability.
SCIENTIFIC REPORTS
(2021)
Article
Ecology
Bryan S. Stevens, Shane B. Roberts, Courtney J. Conway, Devin K. Englestead
Summary: Global change has led to an increase in megafire events, which significantly impact wildlife habitat. This study examined the functional responses and space use of breeding greater sage-grouse before and after a large-scale wildfire in Idaho, USA. The results showed that megafire altered the distribution of available resources and influenced the use of nesting habitat, while individual variation in resources affected brood rearing. Importantly, resource selection models built prior to the fire had poor transferability in predicting post-fire space use. These findings have important implications for understanding how animals respond to changing environments and can aid in habitat conservation efforts.
ECOLOGY AND EVOLUTION
(2023)
Article
Biodiversity Conservation
Florian Orgeret, Martin U. Gruebler, Patrick Scherler, Valentijn S. van Bergen, Urs G. Kormann
Summary: In this study, we tracked red kites from fledging to settlement and found that their habitat selection changed during natal dispersal. During the prospecting phase, individuals had a wide distribution in western Europe and were less responsive to the environment. However, during the settlement phase, they selected a narrower range of environmental gradients and avoided certain areas. These findings highlight the importance of considering different environmental constraints before and after settlement in species conservation strategies.
Article
Ecology
Jayme M. Santangelo, Bram Vanschoenwinkel, Hendrik Trekels
Summary: Recent evidence suggests that the presence of predators can influence the colonization rates of prey in nearby predator-free patches, with effects potentially being positive or negative based on predator- and prey-specific factors. The distance from predator patches also plays a role in shaping these responses, highlighting the complexity of habitat selection in landscapes.
Article
Forestry
Dejan Stojanovic, Laura Rayner, Mclean Cobden, Chris Davey, Stuart Harris, Robert Heinsohn, Giselle Owens, Adrian D. Manning
Summary: The superb parrots are selective in choosing nesting trees and cavities, preferring deeper, wider, and larger entrance cavities. Suitable cavities for them are very scarce, which may limit the population growth and recovery of superb parrots.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Ornithology
Alberto Macias-Duarte, Angel B. Montoya, J. Roberto Rodriguez-Salazar, J. Andres Alvarado-Castro, Oscar G. Gutierrez-Ruacho
Summary: The study used satellite transmitters to track the movements of two wild Chihuahuan Desert Aplomado Falcons, finding that they dispersed from their natal territories after fledging and wandered between historic breeding territories and recently converted farmlands. The male falcon covered a distance of 7412 km(2) over 2 years and nested unsuccessfully before successfully fledging two offspring. The female falcon roamed an area of 12,136 km(2) for 17 months before her transmitter failed.
JOURNAL OF RAPTOR RESEARCH
(2021)
Article
Multidisciplinary Sciences
Aziz Subach, Arik Dorfman, Bar Avidov, Adi Domer, Yehonatan Samocha, Inon Scharf
Summary: This study investigated the behavior and ecology of the desert horned viper in the northwestern Negev desert, Israel. The vipers were found to move slower in vegetation-dense microhabitats compared to open dune areas. Their movement in open areas was likely influenced by the availability of prey. The vipers were more active early in the season, with peak activity right after sunset and a smaller peak at sunrise, possibly indicating a search for burrows to spend the day. Inter-sexual and between-year differences were also observed, such as variations in size and population size. The information provided in this study can contribute to the conservation of this viper species, as sand dunes are threatened habitats in Israel.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Behavioral Sciences
Fumiaki Y. Nomano, James L. Savage, Lee A. Rollins, Simon C. Griffith, Andrew F. Russell
Summary: Several mechanisms in communal roosting contribute to family living in chestnut-crowned babblers, including both direct and indirect nepotism. Settlement order influences individual roosting positions, with juveniles and immigrant females receiving varying levels of assistance during communal roosting.
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
(2021)
Article
Environmental Sciences
Eduardo Laguna, Jose A. Barasona, Joaquin Vicente, Oliver Keuling, Pelayo Acevedo
Summary: The study highlights the impact of sex and land use on the spatial ecology and habitat selection of adult wild boar in the Mediterranean region. Male wild boar exhibited higher activity levels and larger daily range in mixed farms compared to fenced hunting estates, with lower values observed in protected areas.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biodiversity Conservation
R. Fay, M. Schaub, M. Banik, J. A. Border, I. G. Henderson, G. Fahl, J. Feulner, P. Horch, F. Korner, M. Mueller, V Michel, H. Rebstock, D. Shitikov, D. Tome, M. Voegeli, M. U. Grueebler
Summary: The study found that the true adult survival rate of the whinchats may hardly differ between sexes, with the main demographic problem likely being insufficient reproduction. Conservation activities for whinchats should primarily focus on Europe, according to the study results.
ANIMAL CONSERVATION
(2021)
Article
Behavioral Sciences
Benjamin Homberger, Franzi Korner-Nievergelt, Susanne Jenni-Eiermann, Jerome Duplain, Michael Lanz, Lukas Jenni
Summary: Personalities, consistent individual differences in behavior, are influenced by factors such as genetic background, prenatal and postnatal conditions. In birds, for example, hormones in eggs and environmental conditions can affect offspring behavior. The integration of behavior, physiology, and survival measures allows for investigating the interplay of personality and fitness in a changing environment.
Article
Biology
Maria del Mar Delgado, Raphael Arlettaz, Chiara Bettega, Mattia Brambilla, Miguel de Gabriel Hernando, Antonio Espana, Angel Fernandez-Gonzalez, Angel Fernandez-Martin, Juan Antonio Gil, Sergio Hernandez-Gomez, Paola Laiolo, Jaime Resano-Mayor, Jose Ramon Obeso, Paolo Pedrini, Isabel Roa-Alvarez, Christian Schano, Davide Scridel, Eliseo Strinella, Ignasi Toranzo, Franzi Korner-Nievergelt
Summary: In winter, many animals exhibit gregarious behavior as a common strategy to cope with harsh conditions. The size and timing of group gatherings are influenced by weather conditions, with individuals balancing between seeking resources and reducing risks.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
Martin U. Grueebler, Johann von Hirschheydt, Fraenzi Korner-Nievergelt
Summary: The study found that the annual apparent survival of adult breeding barn swallows decreased with elevation, while the dispersal probability of adult females increased, particularly for individuals at high elevations dispersing to lower elevation farms. These results suggest higher turnover rates and source-sink dynamics at high elevations.
SCIENTIFIC REPORTS
(2021)
Article
Ornithology
Sebastian Dirren, Stephanie Borel, Nina Wolfrum, Fraenzi Korner-Nievergelt
Summary: Infectious diseases pose a great risk to populations of naive host species. This article reports the first microscopic and molecular detection of the bird pathogen Trichomonas gallinae in the White-winged Snowfinch, which may threaten its already declining population. Interspecies transmission most likely occurred at a bird feeder in a Swiss mountain village, highlighting the urgent need for disease monitoring and prevention measures.
JOURNAL OF ORNITHOLOGY
(2022)
Article
Biology
Saskia Schirmer, Franzi Korner-Nievergelt, Jan A. C. von Roenn, Volkmar Liebscher
Summary: Spatial variation in survival has significant implications for individual fitness and population dynamics. Understanding the spatial patterns of migrating animals is crucial for studying their demography.
JOURNAL OF THEORETICAL BIOLOGY
(2022)
Article
Ecology
Vanja T. Michel, Matthias Tschumi, Beat Naef-Daenzer, Herbert Keil, Martin U. Grueebler
Summary: This study investigates the impact of habitat quality on the costs of reproduction in little owls. The results suggest that immediate ecological costs occur in both high-quality and low-quality habitats, while delayed intrinsic costs only occur in low-quality habitats. Differential effects of habitat quality can mask the increase of reproduction costs in low-quality breeding habitats.
ECOLOGY AND EVOLUTION
(2022)
Article
Ornithology
Mattia Brambilla, Chiara Bettega, Maria M. Delgado, Miguel De Gabriel-Hernando, Martin Paeckert, Raphael Arlettaz, Sebastian Dirren, Philippe Fontanilles, Juan Antonio Gil, Mylene Herrmann, Sabine Hille, Franzi Korner-Nievergelt, Paolo Pedrini, Jaime Resano-Mayor, Christian Schano, Davide Scridel
JOURNAL OF AVIAN BIOLOGY
(2022)
Article
Biology
Benedetta Catitti, Martin U. Grueebler, Urs G. Kormann, Patrick Scherler, Stephanie Witczak, Valentijn S. van Bergen, Susanne Jenni-Eiermann
Summary: This study found that food shortage increases stress levels in nestlings, affecting their nutritional state and social environment during development. Food availability, in conjunction with ambient temperature, shapes differences in stress load, which may have carry-over effects on behavior and performance in further life-history stages.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Ecology
Hugo Robles, Carlos Ciudad, Zeno Porro, Julien Fattebert, Gilberto Pasinelli, Matthias Tschumi, Marta Vila, Martin U. Grueebler
Summary: The study investigates the influence of phenotypic and environmental factors on dispersal movements of juvenile woodpeckers in fragmented landscapes. The results show that larger and healthier individuals tend to emigrate earlier and have shorter transfer durations. Female woodpeckers disperse earlier, move shorter distances, and have longer transfer durations compared to males. Patch size, patch quality, and population density also affect emigration age, transfer duration, and distance. The study highlights the importance of early-life conditions and edge hardness in shaping dispersal behavior and reveals the previously overlooked effect of habitat isolation on sex-biased dispersal.
Article
Ecology
Patrick Scherler, Stephanie Witczak, Adrian Aebischer, Valentijn van Bergen, Benedetta Catitti, Martin U. Grueebler
Summary: This study found that environmental factors such as food availability, breeding density, and timing of breeding have an impact on the dispersal behavior of red kites. There was an elevational gradient in the timing of breeding, but food supplementation did not show a significant effect on the elevational gradient of dispersal behavior. The findings suggest that both climatic factors and spatial differences in food availability and breeding density contribute to the elevational differences in dispersal behavior.
ECOLOGY AND EVOLUTION
(2023)
Article
Forestry
Jeannine Fluri, Pia Anderwald, Fraenzi Korner-Nievergelt, Sonja Wipf, Valentin Amrhein
Summary: Browsing by wild ungulates has significant effects on forest structure and composition. In the Swiss National Park, the high density of red deer, ibex, and chamois is attributed to strict protection and absence of large predators. Analysis of count data from 1991 to 2021 reveals an increase in saplings and young trees despite the presence of wild ungulates. Browsing probability is highest for larch saplings at a height of 10-40 cm and increases with elevation.
Article
Multidisciplinary Sciences
Benedetta Catitti, Urs G. Kormann, Valentijn S. van Bergen, Martin U. Gruebler
Summary: Aggression plays a crucial role in dominance acquisition in animal societies, but how it is influenced by changing external and internal conditions remains unclear. This study found that food provisioning affects aggression patterns and food allocation in growing red kite nestlings. The results suggest that different aggression patterns allow for catch-up growth after periods of low food, modulating environmental effects on juvenile development.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Ecology
Niklaus Zbinden, Fraenzi Korner-Nievergelt, Federico Tettamanti, Verena Keller
Summary: The breeding success of an Alpine black grouse population in southern Switzerland was monitored for 40 years. The study found that average elevation of breeding sites increased in central/southern Ticino but not in northern Ticino. Temperature and egg-laying time were positively correlated with reproductive rate, while the correlation between reproductive rates and precipitation was unclear. Brush forest explained the largest variation in reproductive rate, and year and its interaction with region explained considerable amounts of the variance. There was a negative trend in reproductive success in central/southern Ticino, likely due to habitat changes. The study highlights the importance of monitoring long-term changes in black grouse populations and the impact of climate and habitat on their reproductive success.