We study a stage-structured single species population model with Allee effects. The asymptotic dynamics of the model depend on the maximal growth rate of the population as well as on its initial population size. We also investigate two models of host-parasitoid interaction with stage-structure and Allee effects in the host. The parasitoid population may drive the host population to extinction in both models even if the initial host population is beyond the Allee threshold.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3934/mbe.2010.7.67 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Titanium dioxide nanoparticles: a promising candidate for wound healing applications.
Burns Trauma
January 2025
Research Group of Immune Cell Communication, Department of Immune Medicine, Universitätsklinikum Regensburg | UKR, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
Effective wound management and treatment are crucial in clinical practice, yet existing strategies often fall short in fully addressing the complexities of skin wound healing. Recent advancements in tissue engineering have introduced innovative approaches, particularly through the use of nanobiomaterials, to enhance the healing process. In this context, titanium dioxide nanoparticles (TiO NPs) have garnered attention due to their excellent biological properties, including antioxidant, anti-inflammatory, and antimicrobial properties.
View Article and Find Full Text PDFLocal and landscape factors differently influence health and pollination services in two important pollinator groups.
Sci Total Environ
January 2025
Ulm University, Institute of Evolutionary Ecology and Conservation Genomics, Albert-Einstein-Allee 11, 89081 Ulm, Germany. Electronic address:
Agricultural management significantly affects insects, especially pollinators, which are crucial for crop pollination and biodiversity. In agricultural landscapes, various factors spanning different spatial scales are known to affect pollinator health, which, in turn, can influence pollination services. However, the importance of these factors in driving the health and performance of different pollinator groups remains unclear.
View Article and Find Full Text PDFAnalysis of the stability of a predator-prey model including the memory effect, double Allee effect and Holling type-I functional response.
PLoS One
January 2025
Department of Mathematics and General Sciences, Prince Sultan University, Riyadh, Saudi Arabia.
This study proposes and analyses a revised predator-prey model that accounts for a twofold Allee impact on the rate of prey population expansion. Employing the Caputo fractional-order derivative, we account for memory impact on the suggested model. We proceed to examine the significant mathematical aspects of the suggested model, including the uniqueness, non-negativity, boundedness, and existence of solutions to the noninteger order system.
View Article and Find Full Text PDFFirst-line immune-based combinations or sunitinib in favorable-risk metastatic renal cell carcinoma: a real-world retrospective comparison from the ARON-1 study.
Cancer Immunol Immunother
January 2025
Oncology Unit, Macerata Hospital, Macerata, Italy.
Introduction: Renal cell carcinoma (RCC) is one of the most common types of urogenital cancer. The introduction of immune-based combinations, including dual immune-checkpoint inhibitors (ICI) or ICI plus tyrosine kinase inhibitors (TKIs), has radically changed the treatment landscape for metastatic RCC, showing varying efficacy across different prognostic groups based on the International Metastatic RCC Database Consortium (IMDC) criteria.
Materials And Methods: This retrospective multicenter study, part of the ARON-1 project, aimed to evaluate the outcomes of favorable-risk metastatic RCC patients treated with immune-based combinations or sunitinib.
[Interprofessional and interdisciplinary collaboration in the implementation of health services research in pain medicine].
Schmerz
January 2025
Klinik für Anästhesiologie und Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Ratzeburger Allee 160, 23562, Lübeck, Deutschland.
Health services research looks at a form of care under contextual conditions. Often, and especially in the treatment of recurrent or chronic pain, these forms of care are complex interventions. Ensuring internal validity for subsequent interpretability of the results achieved as an essential requirement for studies in health services research therefore presents researchers with the challenge that they have to develop complex study protocols and implement and monitor them in clinical care.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!