Article
Ecology
Emerson Arehart, Jody R. Reimer, Frederick R. Adler
Summary: Finding a common currency for benefits and hazards in optimal foraging theory is challenging. We propose a new analytic approach that incorporates the nonlinear effect of predation risk and provides a quantitative measure of the trade-off between foraging rewards and hazards. We compare optimal decision-making dynamics for different foraging life-history strategies, showing that foragers with delayed-benefit strategies are more sensitive to predation risk.
Article
Behavioral Sciences
Matthew A. A. Wuensch, Alexander M. M. Pratt, David Ward
Summary: This study designed a feeder that measured activity densities and excluded non-target species to accurately measure ungulate habitat preference and space use. The experiments showed that the feeder could discern habitat preference and found that white-tailed deer preferred the old-field habitat. Non-target species accessed the traditional feeding bin more frequently than the modified feeder design. The feeder design offers an alternative method to measure activity densities and restrict access to non-target species.
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Jennifer Howell-Stephens, Emily J. Potratz, Joel S. Brown, Dave Bernier, Rachel M. Santymire
Summary: Zoo managers evaluate the stress response of zoo animals by analyzing their behavior and glucocorticoids. In this study, we used non-invasive sampling to measure how southern three-banded armadillos in a zoo perceived their habitats. The results showed that armadillos did not respond to patch modifications but foraged more when there was increased cover. The relationship between giving-up densities and fecal glucocorticoid metabolites varied among individuals. Overall, this study provides valuable information for zoo managers and suggests non-invasive indicators for monitoring adrenocortical activity in zoo-housed species. Evaluation: 8 out of 10.
Article
Biodiversity Conservation
Alisha N. Griffin, John Kioko, Ole Theisinger, Christian Kiffner
Summary: The study found that ostrich population densities and trends were not necessarily associated with formal protection status. Differences in ostrich densities and trends were observed among different areas, but ostrich population densities were moderately correlated with those of large savanna mammals in the ecosystem.
ECOLOGICAL INDICATORS
(2021)
Article
Ornithology
Munoz Z. Jenny, Colorado Z. J. Gabriel
Summary: Group living is a common social strategy among animals, impacting foraging behavior significantly, especially with increased group size leading to more foraging attempts and higher movement rates. Birds in tropical regions, both resident and migratory species, benefit from participating in mixed-species flocks by increasing foraging success and reducing perceived predation risk.
JOURNAL OF FIELD ORNITHOLOGY
(2021)
Article
Ecology
Regan Terry, Kylie A. Robert, Angela Simms, Graham Stockfeld, James U. Van Dyke
Summary: Invasive mammalian predators, such as the red fox, are causing significant decline in native animal populations in Australia, particularly reptiles like the long-necked turtle and Murray River turtle. Previous methods of fox control have been ineffective at protecting turtle nests. This study tested the effectiveness of plastic mesh for nest protection and found that it was not effective in this region.
Article
Zoology
Madison J. Wagner, Paul A. Moore
Summary: This study examines the response of crayfish to different predatory cues. The results show that crayfish can use various indices, such as predator abundance and relative size ratios, in risk assessment but do so in context-specific ways.
CANADIAN JOURNAL OF ZOOLOGY
(2022)
Article
Behavioral Sciences
Sundararaj Vijayan, Burt P. Kotler, Lotan Tamar Tov-Elem, Zvika Abramsky
ETHOLOGY ECOLOGY & EVOLUTION
(2019)
Article
Behavioral Sciences
Jorge F. S. Menezes, Burt P. Kotler, Austin K. Dixon
ETHOLOGY ECOLOGY & EVOLUTION
(2019)
Article
Behavioral Sciences
Sonny S. Bleicher, Burt P. Kotler, Joel S. Brown
FRONTIERS IN BEHAVIORAL NEUROSCIENCE
(2019)
Article
Psychology, Biological
Jorge F. S. Menezes, Burt P. Kotler, Austin K. Dixon
BEHAVIOURAL PROCESSES
(2019)
Article
Ecology
Jorge F. S. Menezes, Burt P. Kotler
ECOLOGICAL MODELLING
(2019)
Article
Ecology
S. Vijayan, J. K. Lee, J. Balaban-Feld, W. A. Mitchell, B. P. Kotler, M. L. Rosenzweig, T. T. Lotan, Z. Abramsky
Article
Psychology, Biological
Douglas F. Makin, Burt P. Kotler
BEHAVIOURAL PROCESSES
(2019)
Article
Ecology
Sonny S. Bleicher, Burt P. Kotler, Cynthia J. Downs, Joel S. Brown
JOURNAL OF ARID ENVIRONMENTS
(2020)
Article
Ecology
Sonny S. Bleicher, Burt P. Kotler, Cynthia J. Downs, Joel S. Brown
JOURNAL OF ANIMAL ECOLOGY
(2020)
Article
Psychology, Biological
Reut Vardi, Burt P. Kotler, Ofir Altstein, Zvika Abramsky
Summary: This study found that in intraspecific interactions of little egrets, gender differences and the time spent foraging with a conspecific male had a positive impact on females' foraging success, suggesting individuals may mitigate male aggressiveness through indirect interactions, without actually affecting overall foraging success.
BEHAVIOURAL PROCESSES
(2021)
Article
Behavioral Sciences
Sundararaj Vijayan, Jesse Balaban-Feld, Shamir Badichi, Lotan Tamar Tov-Elem, Burt P. Kotler, William A. Mitchell, Zvika Abramsky
Summary: The study found that little egrets selectively target larger goldfish for prey and employ a time management strategy to maximize their energetic gains. This size-selective predation can potentially impact the dynamics of species interactions and community structures in the long run.
ETHOLOGY ECOLOGY & EVOLUTION
(2022)
Article
Behavioral Sciences
Jorge F. S. Menezes, Inbal Tiano, Burt P. Kotler
Summary: This study examined the behavioral differences among three populations of Allenby's gerbils in the Negev Desert, revealing unique behavioral characteristics displayed by populations in different environments. The findings support the hypothesis that different locations can form consistent population phenotypes.
ETHOLOGY ECOLOGY & EVOLUTION
(2022)
Article
Ecology
Douglas F. Makin, Ella Agra, Manu Prasad, Joel S. Brown, Moshe Elkabets, Jorge Fernando Saraiva Menezes, Franklin Sargunaraj, Burt P. Kotler
Summary: The study found that both tumor burden and host lifestyle can affect foraging behavior in laboratory mice, with interesting differences observed between mice with and without cancer. Despite the influence of various factors such as disease status, sex, and microhabitat, mice with tumors showed slower tumor growth rates in a free-ranging environment compared to mice housed in laboratory cages, indicating potential complexities in tumor progression. Further research is needed to explore the underlying mechanisms behind these findings.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Behavioral Sciences
Jesse Balaban-Feld, Sundararaj Vijayan, William A. Mitchell, Burt P. Kotler, Shamir Badichi, Zvika Abramsky
Summary: This study found that the behavioral differences between bold and shy individuals in social groups can diminish under elevated levels of predation risk. Bold individuals are more willing to take risks in order to achieve greater foraging success, while shy individuals tend to avoid risks.
Article
Oncology
Burt P. Kotler, Joel S. Brown