Constructing a sense of home: Place affiliation and migration across the life cycle

1993 ◽  
Vol 8 (4) ◽  
pp. 547-572 ◽  
Author(s):  
Lee Cuba ◽  
David M. Hummon
2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Cinzia Podda ◽  
Andrea Sabatini ◽  
Francesco Palmas ◽  
Antonio Pusceddu

Catadromous fish species are very important organisms for their ecological, economical, and cultural value. For its complex life species catadromous fish result in worldwide decline since the beginning of the 20th century. Among the most iconic catadromous species, the European eel Anguilla anguilla L. 1758 has aroused considerable interest since very ancient times. Because, to date, many aspects of their life cycle remain relatively unknown, to implement our knowledge about the main natural and anthropogenic threats to its survivorship and identify possible solutions to preserve it, in this narrative review, we present the state of the knowledge about the life cycle, habitat occupancy, recruitment, and migration patterns of the European eel and about the major threats most likely have contributed to the decline of eels’ populations.


Author(s):  
PHILIP E. GRAVES ◽  
JOANNA REGULSKA
Keyword(s):  

1971 ◽  
Vol 50 (2) ◽  
pp. 498-515 ◽  
Author(s):  
Barbara A. Nichols ◽  
Dorothy Ford Bainton ◽  
Marilyn G. Farquhar

The origin, content, and fate of azurophil granules of blood monocytes were investigated in several species (rabbit, guinea pig, human) by electron microscopy and cytochemistry. The life cycle of monocytes consists of maturation in bone marrow, transit in blood, and migration into tissues where they function as macrophages. Cells were examined from all three phases. It was found that: azurophil granules originate in the Golgi complex of the developing monocyte of bone marrow and blood, and ultimately fuse with phagosomes during phagocytosis upon arrival of monocytes in the tissues. They contain lysosomal enzymes in all species studied and peroxidase in the guinea pig and human. These enzymes are produced by the same pathway as other secretory products (i.e., they are segregated in the rough ER and packaged into granules in the Golgi complex). The findings demonstrate that the azurophil granules of monocytes are primary lysosomes or storage granules comparable to the azurophils of polymorphonuclear leukocytes and the specific granules of eosinophils. Macrophages from peritoneal exudates (72–96 hr after endotoxin injection) contain large quantities of lysosomal enzymes throughout the secretory apparatus (rough ER and Golgi complex), in digestive vacuoles, and in numerous coated vesicles; however, they lack forming or mature azurophil granules. Hence it appears that the monocyte produces two types of primary lysosomes during different phases of its life cycle—azurophil granules made by developing monocytes in bone marrow or blood, and coated vesicles made by macrophages in tissues and body cavities.


Author(s):  
Paola Cardinali ◽  
Joseph R. Ferrari ◽  
Vittoria Romoli ◽  
Andrew Camilleri ◽  
Laura Migliorini

AbstractWe assessed the sense of psychological home among adult men (n = 17; M age = 29.7 years old) who had experienced migration to Italy, focusing on the relationship between psychological home and the process of integration into the new country. Psychological home is a dynamic process in which people sense a safe and secure environment that ranges beyond the confines of a structured dwelling, a process which is reflective and which communicates one’s self-identity. Participants engaged in a semistructured interview with the aim of establishing a generic concept of psychological home and identifying the issues that arise at the intersection of psychological home and migration. The results highlighted certain themes about the meaning that psychological home assumes in the lives of migrants and about the way in which the migration experience acts to support or hinder the process of building this sense of home. Of special interest is the idea that individuals might develop multiple psychological homes related to the different places and relationships that they experience. In this sense, establishment of a psychological home might be considered the ideal affective state for psychological adaptation to a new country.


2003 ◽  
Vol 81 (6) ◽  
pp. 1057-1062 ◽  
Author(s):  
G Eoin Craigie ◽  
Scott A Petrie

Moult intensity and chronology in staging Eastern-Population (EP) Tundra Swans (Cygnus columbianus columbianus) were studied during spring in 1999 and 2000 (n = 35) and during fall in 1999, 2000, and 2001 (n = 47) at Long Point, Lake Erie, Ontario. To test for age, sex, and seasonal differences in moult intensity, 20 feather regions were scored according to the proportion of growing feathers. Adult, subadult, and juvenile Tundra Swans moulted contour feathers at low intensities during spring and fall. Males and females of all three age classes had similar patterns and intensities of moult during spring and fall. Shared costs of incubation and brood rearing, perennial monogamy, and lack of a breeding plumage could be some of the pressures selecting for intersexual similarities in feather replacement during migration. Adult, subadult, and juvenile Tundra Swans moulted more intensively during fall than spring. Larger lipid reserves and seasonal dietary differences may allow fall-staging Tundra Swans to moult more intensively than spring-staging birds at Long Point. Overlap of nutritionally costly events (moult and migration) may be necessary as Tundra Swans spend half of their annual cycle on spring and fall staging areas. However, reduced daily nutritional costs associated with moulting at low intensities and migrating slowly apparently permits the overlap of these two life-cycle events.


2008 ◽  
Vol 48 (4) ◽  
pp. 789-824 ◽  
Author(s):  
Cécile Détang-Dessendre ◽  
Florence Goffette-Nagot ◽  
Virginie Piguet

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