Results 21 to 30 of about 71,131 (301)

Queen transport during ant colony emigration: a group-level adaptive behavior [PDF]

Behavioral Ecology, 2000
Ant colonies emigrate frequently from one nest site to another. Emigrations, however, are dangerous, particularly for colonies with a single queen. The queen is a ‘‘vital organ’’ of the colony, and emigrations expose her to grave peril. The optimal strategy for a monogynous ant colony, therefore, should be that the queen moves during the middle of the ...
Franks, NR, Sendova-Franks, AB
openaire   +1 more source

CD11b+CD43hiLy6Clo splenocyte‐derived macrophages exacerbate liver fibrosis via spleen–liver axis

Hepatology, EarlyView., 2022
A population of splenic monocytes migrate into the liver and shift to macrophages, which account for the exacerbation of liver fibrosis. Abstract Background and Aims Monocyte‐derived macrophages (MoMFs), a dominant population of hepatic macrophages under inflammation, play a crucial role in liver fibrosis progression.
Shaoying Zhang, Dan Wan, Mengchen Zhu, Guihu Wang, Xurui Zhang, Na Huang, Jian Zhang, Chongyu Zhang, Qi Shang, Chen Zhang, Xi Liu, Fanfan Liang, Chunyan Zhang, Guangyao Kong, Jing Geng, Libo Yao, Shemin Lu, Yongyan Chen, Zongfang Li   +18 more
wiley   +1 more source

HISTORICAL CHARACTERISTICS OF EMIGRATION FROM RURAL JAPAN IN THE PRE-WORLD WAR II ERA

Journal of Asian Rural Studies, 2017
Spatial mobility like rural–urban migration is an important social phenomenon to measure the degree of freedom and dynamism of a society that is directly related to industrialization. The same applies to spatial mobility of emigration, which is permanent
Yoshio Kawamura
doaj   +1 more source

The effect of emigration on home-country political institutions [PDF]

, 2016
The number of immigrants from developing countries living in richer, more developed countries has increased substantially during the last decades. At the same time, the quality of institutions in developing countries has also improved.
Bassoli, Matteo, Lodigiani, Elisabetta
core   +1 more source

Spatial heterogeneity and irreversible vegetation change in semi-arid grazing systems [PDF]

, 2002
Recent theoretical studies have shown that spatial redistribution of surface water may explain the occurrence of patterns of alternating vegetated and degraded patches in semiarid grasslands.
Andel, J., van, Fryxell, J.M., Hearne, J., Klausmeier, C.A., Koppel, J., van de, Kumar, L., Langevelde, F., van, Prins, H.H.T., Ridder, N., de, Rietkerk, M., Skidmore, A.K., Stroosnijder, L.   +11 more
core   +2 more sources

High Emigration Propensity and Low Mortality on Transfer Drives Female-Biased Dispersal of Pyriglena leucoptera in Fragmented Landscapes.

PLoS ONE, 2017
Dispersal is a biological process performed in three stages: emigration, transfer and immigration. Intra-specific variation on dispersal behavior, such as sex-bias, is very common in nature, particularly in birds and mammals.
Marcelo Awade, Carlos Candia-Gallardo, Cintia Cornelius, Jean Paul Metzger   +3 more
doaj   +1 more source

Emigration and the age profile of retirement among immigrants [PDF]

, 2008
This paper analyzes the relationship between immigrants’ retirement status and the prevalence of return migration from the host country to their country of origin.
Cobb-Clark, D.A., Stillman, S.
core   +2 more sources

Mechanistic modelling of animal dispersal offers new insights into range expansion dynamics across fragmented landscapes [PDF]

, 2014
Peer ...
Bocedi, Greta, Reineking, Björn, Travis, Justin M J, Zurell, Damaris   +3 more
core   +2 more sources

Mutant Genes and the Emigration Behavior of Phaenicia sericata (Diptera, Calliphoridae) [PDF]

Evolution, 1969
Pleiotropic effects of genes on patterns of behavior must be considered in the determination of individual variability, fitness, and adaptation. Studies have shown genetic alterations of behavior ranging from simple responses, as the differential attraction toward light by mutant and normal individuals (Brown and Hall, 1936), to variations in complex ...
openaire   +2 more sources

“What Would You Do If You Were to Win the Lottery?” A Qualitative Tool for Overcoming Agency-Structure Issues in Migration Research

Qualitative Sociology Review, 2023
This paper proposes a quasi-standardized hypothetical interview-guide question and demonstrates its applicability in addressing participants’ general life aspirations, and, in particular, the embedded migration aspirations.
Gergely Horzsa
doaj   +1 more source