Publications by authors named "A Wirsing"
Article Synopsis
- Researchers Shiratsuru and Pauli (2024) studied how snowshoe hares adjust their behavior in response to predation risk, influenced by food availability, predator activity, and environmental factors like snow cover.
- They found that these hares dynamically balance foraging and vigilance, trading one for the other based on changes in their circumstances.
- This study highlights the complexity of predator-prey interactions and suggests that understanding these dynamics better can help explain how behavior changes in different environments.
Article Synopsis
- The study examines how predator hunting strategies (stalking by cougars and coursing by wolves) affect the movement behaviors of both predators and their ungulate prey in eastern Washington.
- Using hidden Markov models on data from over 400 GPS-collared animals, researchers found that while predators adjusted their movements based on prey type, ungulates reduced their movement in areas with large predators, regardless of the predator's strategy.
- The results indicate that predator and prey movements are influenced more by long-term patterns of risk and resource distribution than by specific hunting behaviors, highlighting the complexity of interactions in multi-predator, multi-prey systems.
Article Synopsis
- Sharks play many important roles in their ecosystems, like being predators and helping transport nutrients.
- Sadly, overfishing and other human activities have hurt shark populations, which changes how ecosystems work.
- To fix the problems caused by losing sharks, we need to manage their populations better and understand all the ways they help the environment.
Large terrestrial mammals increasingly rely on human-modified landscapes as anthropogenic footprints expand. Land management activities such as timber harvest, agriculture, and roads can influence prey population dynamics by altering forage resources and predation risk via changes in habitat, but these effects are not well understood in regions with diverse and changing predator guilds. In northeastern Washington state, USA, white-tailed deer (Odocoileus virginianus) are vulnerable to multiple carnivores, including recently returned gray wolves (Canis lupus), within a highly human-modified landscape.
View Article and Find Full Text PDFOral tongue squamous cell carcinoma (OTSCC) is the most common cancer of the oral cavity and is associated with high morbidity due to local invasion and lymph node metastasis. Tumor infiltrating lymphocytes (TILs) are associated with good prognosis in oral cancer patients and dictate response to treatment. Ectopic sites for immune activation in tumors, known as tertiary lymphoid structures (TLS), and tumor-associated high-endothelial venules (TA-HEVs), which are specialized lymphocyte recruiting vessels, are associated with a favorable prognosis in OSCC.
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