Results 231 to 240 of about 44,768 (308)

Allee effect in polar bears: a potential consequence of polychlorinated biphenyl contamination. [PDF]

Proc Biol Sci, 2016
Pavlova V, Nabe-Nielsen J, Dietz R, Sonne C, Grimm V.   +4 more
europepmc   +1 more source

Laser‐ und energiebasierte Systeme zur Behandlung der Rosazea – ein systematischer Review mit Netzwerk‐Metaanalyse

JDDG: Journal der Deutschen Dermatologischen Gesellschaft, Volume 24, Issue 1, Page 24-33, January 2026.
Zusammenfassung Hintergrund und Zielsetzung Laser und energiebasierte Geräte (energy‐based devices, EBDs) werden häufig zur Behandlung vaskulärer Symptome eingesetzt, jedoch fehlen umfassende Vergleichsdaten. Ziel dieser Studie war es, Wirksamkeit und Sicherheit verschiedener laser‐ und energiebasierter Systeme bei Rosazea in einem systematischen ...
Lynhda Nguyen, Christina Sorbe, Nikolaus Seeber, Stefan W. Schneider, Katharina Herberger   +4 more
wiley   +1 more source

An Emerging Allee Effect Is Critical for Tumor Initiation and Persistence. [PDF]

PLoS Comput Biol, 2015
Böttger K, Hatzikirou H, Voss-Böhme A, Cavalcanti-Adam EA, Herrero MA, Deutsch A.   +5 more
europepmc   +1 more source

Density Dependence During Evolutionary Rescue Increases Extinction Risk but Does Not Prevent Adaptation

Ecology Letters, Volume 29, Issue 1, January 2026.
This study investigates how density dependence influences evolutionary rescue in populations facing environmental stress. We found that while density dependence increases extinction risk by limiting population growth, it does not prevent adaptation in surviving populations.
Laure Olazcuaga, Brett A. Melbourne, Scott W. Nordstrom, Ruth A. Hufbauer   +3 more
wiley   +1 more source

Feedback Regulation in a Cancer Stem Cell Model can Cause an Allee Effect. [PDF]

Bull Math Biol, 2016
Konstorum A, Hillen T, Lowengrub J.
europepmc   +1 more source

Predator-prey dynamics with Allee effect in prey refuge

, 2015
Longxing Qi, Lijuan Gan, Meng Xue, Sakhone Sysavathdy   +3 more
openalex   +1 more source

Plastic Behavioral Responses to Ambient Relative Humidity Influence Aggregation in a Large Gregarious Insect

Ethology, Volume 132, Issue 1, Page 11-17, January 2026.
Madagascar hissing cockroaches (Gromphadorhina portentosa) demonstrated an increased probability of performing aggregation behavior at higher ambient relative humidity levels, indicating environmentally dependent plasticity in social grouping behavior.
Alison Kryger, Kayla Huang, Kayhan Tabrizifard, Justin Yang, Alexandra M. Martin, Lindsey Swierk   +5 more
wiley   +1 more source

A cryptic Allee effect: spatial contexts mask an existing fitness-density relationship. [PDF]

R Soc Open Sci, 2015
Terui A, Miyazaki Y, Yoshioka A, Matsuzaki SS.   +3 more
europepmc   +1 more source

General Allee effect in two-species population biology

, 2012
G. Livadiotis, Saber Elaydi
openalex   +1 more source

Incorporating Memory Effects in Population Ecology Using Fractional Derivatives: Stability Perspectives, Bifurcations, and Chaos Control

Complexity, Volume 2026, Issue 1, 2026.
This study investigates a discrete‐time predator–prey model that includes both prey refuge and memory effects. The research identifies the conditions under which fixed points exist and remain stable. A key focus is placed on analyzing different types of bifurcation—such as period doubling (PD), Neimark–Sacker (NS), and strong resonances (1 : 2, 1 : 3 ...
S. M. Sohel Rana, Md. Jasim Uddin, Jesus Manuel Munoz-Pacheco   +2 more
wiley   +1 more source