Results 131 to 140 of about 42,411 (234)

The spread of non‐native species

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1197-1234, June 2026.
ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock   +16 more
wiley   +1 more source

Nonexistence of periodic orbits for predator-prey system with strong Allee effect in prey populations

open access: yesElectronic Journal of Differential Equations, 2013
We use Dulac criterion to prove the nonexistence of periodic orbits for a class of general predator-prey system with strong Allee effect in the prey population growth.
Jinfeng Wang, Junping Shi, Junjie Wei
doaj  

Evidence for an Allee effect in a declining fur seal population. [PDF]

open access: yesProc Biol Sci, 2021
Nagel R   +5 more
europepmc   +1 more source

A Common Reference Material for Mass‐Dependent Sn Isotope Compositions: An Inter‐Laboratory Calibration Approach

open access: yesGeostandards and Geoanalytical Research, Volume 50, Issue 2, Page 341-367, June 2026.
Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister   +10 more
wiley   +1 more source

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

open access: yesMolecular Oncology, Volume 20, Issue 5, Page 1237-1252, May 2026.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix   +13 more
wiley   +1 more source

Establishment of a Native Cavity‐Nesting Bee (Exoneura robusta) After Translocation Into an Urban Environment

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
We translocated the native cavity‐nesting bee Exoneura robusta into an urban greenspace using artificial nests to test short‐term establishment success. Five of eleven nests persisted through a full annual cycle, demonstrating that urban environments can support early colony establishment.
Mulan Wang, Julian Brown
wiley   +1 more source

Stability and bifurcation analysis in a predator prey model involving additive Allee effect

open access: yesRevista Integración
In this paper we study codimension 1 Hopf bifurcation for a two dimensional autonomous nonlinear ordinary differential equations system, modeling a predator-prey interaction with Holling type II functional response and additive Allee effect in the prey ...
Jocirei Dias Ferreira   +2 more
doaj  

Allee effect in a manipulative parasite within poikilothermic host under temperature change. [PDF]

open access: yesParasitology, 2022
Mironova E   +4 more
europepmc   +1 more source

Optimizing Sex Ratio and Colony Size to Enhance Reproduction and Mass‐Rearing in Spodoptera litura Under Controlled Laboratory Conditions

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Skewed sex ratios frequently constrain colony performance and limit the efficiency of large‐scale rearing systems. For Spodoptera litura, the 1:1 initial sex ratio maximizes female longevity and fecundity. When this ratio is scaled to colony sizes of 20:20, 40:40 and 60:60, the 40:40 configuration yields the best overall reproductive performance, while
Chuanzhen Xue   +11 more
wiley   +1 more source

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