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Full-Text Articles in Life Sciences
Identification Of Predation Events In Wild Fish Using Novel Acoustic Transmitters, Amy A. Weinz, Jordan K. Matley, Natalie V. Klinard, Aaron T. Fisk, Scott F. Colborne
Identification Of Predation Events In Wild Fish Using Novel Acoustic Transmitters, Amy A. Weinz, Jordan K. Matley, Natalie V. Klinard, Aaron T. Fisk, Scott F. Colborne
Great Lakes Institute for Environmental Research Publications
Background: Acoustic telemetry is a commonly used tool to gain knowledge about aquatic animal ecology through the study of their movements. In telemetry studies researchers must make inferences regarding the movements and the fates of tagged animals. Until recently, predation has been inferred in telemetry data using a variety of methods including abrupt changes in movement patterns or habitat use. An acoustic telemetry transmitter has been developed to detect predation events of tagged animals, and while they have performed well in controlled laboratory trials, literature regarding the application of these novel transmitters in field settings is limited. The objective of …
Juvenile Rank Acquisition Is Associated With Fitness Independent Of Adult Rank, Eli D. Strauss, Daizaburo Shizuka, Kay E. Holekamp
Juvenile Rank Acquisition Is Associated With Fitness Independent Of Adult Rank, Eli D. Strauss, Daizaburo Shizuka, Kay E. Holekamp
School of Biological Sciences: Faculty Publications
Social rank is a significant determinant of fitness in a variety of species. The importance of social rank suggests that the process by which juveniles come to establish their position in the social hierarchy is a critical component of development. Here, we use the highly predictable process of rank acquisition in spotted hyenas to study the consequences of variation in rank acquisition in early life. In spotted hyenas, rank is ‘inherited’ through a learning process called ‘maternal rank inheritance.’ This pattern is very consistent: approximately 80% of juveniles acquire the exact rank expected under the rules of maternal rank inheritance. …
The Birds And The Trees, Branden Lawson
The Birds And The Trees, Branden Lawson
McNair Scholars
Modification of natural habitats used by native organisms is occurring more rapidly due to the increasing human population. American Robins (Turdus migratorius) are common in urban and non-urban areas and can serve as useful indicators of human activities' effects on wildlife. To create an urban environment, the removal of trees from non-urban habitats is necessary but causes radical alteration of the presence of native avifauna. This study, therefore, examined the influence of tree cover within urban and non-urban sites and how trees' characteristics affected the survival rate of American Robin chicks. Data collection occurred during the 2019 breeding …