Natural History and Ecological Correlates of Fungus-Growing Ants (Formicidae: Attini) in the Neotropical Cerrado Savanna

2011 ◽  
Vol 104 (5) ◽  
pp. 901-908 ◽  
Author(s):  
Inara R. Leal ◽  
Paulo S. D. Silva ◽  
Paulo S. Oliveira
Keyword(s):  
Natural History ◽  
Cerrado Savanna ◽  
Ecological Correlates ◽  
Fungus Growing Ants

scholarly journals Evolution, systematics, and natural history of a new genus of cryptobiotic fungus-growing ants

2018 ◽  
Vol 43 (3) ◽  
pp. 549-567 ◽  
Author(s):  
JEFFREY SOSA-CALVO ◽  
TED R. SCHULTZ ◽  
ANA JEŠOVNIK ◽  
ROMAIN A. DAHAN ◽  
CHRISTIAN RABELING
Keyword(s):  
Natural History ◽  
New Genus ◽  
History Of ◽  
Fungus Growing Ants

Foraging and Spatial Ecology of a Polydomous Carpenter Ant, Camponotus leydigi (Hymenoptera: Formicidae), in Tropical Cerrado Savanna: A Natural History Account

2020 ◽  
Author(s):  
Hélio Soares ◽  
Paulo S Oliveira
Keyword(s):  
Natural History ◽  
Spatial Ecology ◽  
Foraging Ecology ◽  
Feeding Habits ◽  
Nutritional Ecology ◽  
Solid Food ◽  
Nitrogen Acquisition ◽  
Carpenter Ants ◽  
Carpenter Ant ◽  
Cerrado Savanna

Abstract Carpenter ants (genus Camponotus) are considered to be predominantly omnivorous, mixing several feeding habits that include predation, scavenging of animal matter, and plant-derived resources. Nitrogen acquisition is crucial for the nutritional ecology of ant colonies because growing larvae require sustainable protein provisioning. Here, we investigate the foraging ecology and the spatial nesting structure of the carpenter ant, Camponotus leydigi Forel, in Brazilian cerrado savanna. By marking workers from different nests with distinct colors, we revealed that C. leydigi occupies physically separated but socially connected nests (up to 30 m apart), a phenomenon known as polydomy. Observational data on aboveground internest movements in C. leydigi corroborate cooperative exchanges between nest units and confirm several types of social connections, including internest transfer of liquid and solid food, transport of colony members (brood, workers), movement of solitary workers, and internest recruitment. Polydomous C. leydigi allocate foragers throughout 1,700 m2, feeding mostly on termites and plant-derived exudates. Influx of exudates is threefold higher compared with solid food. Uric acid pellets excreted by lizards comprise 20% of the solid diet in C. leydigi, a rare quantitative assessment of this peculiar type of nitrogen complementation in ants. Based on video recordings, we hypothesize that nest decentralization in C. leydigi may reduce foraging constraints caused by overt interference by the aggressive ant, Ectatomma brunneum Smith, F. (Hymenoptera: Formicidae), which regularly blocks nest entrances. Our field study enhances the importance of natural history data to clarify selective pressures underlying the evolution of particular behavioral patterns (nutritional and nesting habits) in ants.

How is the moral stance related to the intentional stance and group thinking?

2020 ◽  
Vol 43 ◽  
Author(s):  
Hannes Rakoczy
Keyword(s):  
Natural History ◽  
Social Cognitive ◽  
Intentional Stance ◽  
Cognitive Capacities ◽  
Shared Intentionality ◽  
History Of ◽  
Group Thinking ◽  
Moral Stance

Abstract The natural history of our moral stance told here in this commentary reveals the close nexus of morality and basic social-cognitive capacities. Big mysteries about morality thus transform into smaller and more manageable ones. Here, I raise questions regarding the conceptual, ontogenetic, and evolutionary relations of the moral stance to the intentional and group stances and to shared intentionality.

On the assembly and structural modulation of lens fiber junctions

1984 ◽  
Vol 42 ◽  
pp. 110-113
Author(s):  
E.L. Benedetti ◽  
I. Dunia ◽  
Do Ngoc Lien ◽  
O. Vallon ◽  
D. Louvard ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Natural History ◽  
Intercellular Junctions ◽  
Eye Lens ◽  
Membrane Domains ◽  
Functional Polymorphism ◽  
Lens Fiber ◽  
The Past ◽  
Structural Modulation ◽  
Biochemical Difference

In the eye lens emerging molecular and structural patterns apparently cohabit with the remnants of the past. The lens in a rather puzzling fashion sums up its own natural history and even transient steps of the differentiation are memorized. A prototype of this situation is well outlined by the study of the lenticular intercellular junctions. These membrane domains exhibit structural, biochemical and perhaps functional polymorphism reflecting throughout life the multiple steps of the differentiation of the epithelium into fibers and of the ageing process of the lenticular cells.The most striking biochemical difference between the membrane derived from the epithelium and from the fibers respectively, concerns the presence of the 26,000 molecular weight polypeptide (MP26) in the latter membranes.

Natural history of helicobacter pylori infection from infancy to adulthood: A 21-year follow-up cohort study

2001 ◽  
Vol 120 (5) ◽  
pp. A128-A128 ◽  
Author(s):  
H MALATY ◽  
D GRAHAM ◽  
A ELKASABANY ◽  
S REDDY ◽  
S SRINIVASAN ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Cohort Study ◽  
Natural History ◽  
Helicobacter Pylori Infection ◽  
History Of

Incidence and natural history of HCV infection in Northern Italy: Results of an epidemiological study

2001 ◽  
Vol 120 (5) ◽  
pp. A366-A366
Author(s):  
C MAZZEO ◽  
F AZZAROLI ◽  
A COLECCHIA ◽  
S DISILVIO ◽  
A DORMI ◽  
...  
Keyword(s):  
Natural History ◽  
Epidemiological Study ◽  
Northern Italy ◽  
Hcv Infection ◽  
History Of

232: Natural History of Treated Biochemical Recurrence after Radical Prostatectomy for Prostate Cancer

2007 ◽  
Vol 177 (4S) ◽  
pp. 77-78
Author(s):  
Christopher R. Porter ◽  
Jochen Walz ◽  
Andrea Gallina ◽  
Claudio Jeldres ◽  
Koichi Kodama ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Radical Prostatectomy ◽  
Natural History ◽  
Biochemical Recurrence ◽  
History Of
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