Do euglossine females reside in a single nest? Notes on Euglossa cordata (Hymenoptera: Apidae: Euglossini)

ABSTRACT Euglossa Latreille, 1802 do not live in large colonies, and these are usually maintained or “reactivated” by new females, subordinate to their mother, which construct and provision brood cells. This study aimed to obtain information about the natural history of Euglossa cordata (Linnaeus, 1758) specially focusing on nest behavior. Our specific objective was to answer the following question: do E. cordata females reside in a single nest? We construct 14 artificial nesting boxes and made them available for E. cordata bees in natural environment for seven months. During this time, we use a re-marking method to identify bee fidelity to a single nest box. More specifically, we record bee permanence in the nests, the time bees take to provision brood to new cells and the time taken to offspring emergence. A total of 12 boxes were colonized by E. cordata and 23 cells were built in an average of 9.78 ± 11 days per cell. Eleven females emerged from the cells in 48.6 ± 11 days. Although adult females moved between nests and sometimes used multiple nests at the same time, E. cordata showed a relatively high fidelity to a single nest (81.1% of the female bees stayed in a single nest more than 50% of time).

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Natural history of Ctenus medius Keyserling, 1891 (Araneae, Ctenidae) I: observations on habitats and the development of chromatic patterns

Revista Brasileira de Biologia ◽

10.1590/s0034-71082000000300015 ◽

2000 ◽

Vol 60 (3) ◽

pp. 503-509 ◽

Cited By ~ 5

Author(s):

C. E. ALMEIDA ◽

E. F. RAMOS ◽

E. GOUVÊA ◽

M. do CARMO-SILVA ◽

J. COSTA

Keyword(s):

Life Cycle ◽

Natural History ◽

National Park ◽

Common Species ◽

Field Observations ◽

Mata Atlântica ◽

Adult Females ◽

History Of ◽

Males And Females ◽

Phoneutria Nigriventer

Ctenus medius Keyserling, 1891 is a common species in several spots of Mata Atlântica, however there is a great lack of studies in all aspects of its natural history. This work aims to elucidate aspects of ecotope preference compared to large spiders, and to provide data on the development of chromatic patterns during its life cycle. The observations on the behavior of C. medius were done in the campus of Centro Universitário de Barra Mansa (UBM) by means of observations and nocturnal collections using cap lamps. For observations on the development of chromatic patterns, spiderlings raised in laboratory, hatched from an oviposition of a female from campus of UBM, and others spiderlings collected in field were used. The field observations indicate that: C. medius seems to prefer ecotopes characterized by dense shrub vegetation or herbal undergrowth; Lycosa erythrognatha and L. nordeskioldii seems to prefer open sites; Phoneutria nigriventer seems to prefer shrub vegetation and anthropogenic ecotopes as rubbish hills; Ancylometes sp. seems to prefer ecotopes near streams. Concerning chromatic patterns, it was observed that males and females show well distinct patterns during the last two instars, allowing distinction by sex without the use of a microscope. Through chromatic patterns it was also possible to draw a distinction between C. medius and C. ornatus longer that 3 mm cephalothorax width. 69 specimens of C. medius (males and females) collected in the campus of UBM did not show a striking polymorphism in chromatic pattern, but one among 7 adult females collected in National Park of Itatiaia, showed a distinct chromatic pattern.

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Origins and History of The Ottawa Field-Naturalists' Club

The Canadian Field-Naturalist ◽

10.22621/cfn.v118i1.879 ◽

2004 ◽

Vol 118 (1) ◽

pp. 1

Author(s):

Daniel F. Brunton

Keyword(s):

Natural History ◽

Natural Environment ◽

Early Years ◽

Private Interests ◽

Professional Careers ◽

Club Membership ◽

Publication Program ◽

History Of ◽

Conservation Awareness ◽

The 1960S

The Ottawa Field-Naturalists’ Club (OFNC) represents an unbroken chain of organized, non-governmental natural history investigation and education dating back to the early days of the city of Ottawa itself. The Club originated in 1863 with the formation of the Ottawa Natural History Society which became the Natural History branch of the Ottawa Literary and Scientific Society in 1870, from which the OFNC formally separated in March 1879. Since that time, it has grown into Canada’s oldest and largest regional natural history organization and has produced a diverse and internationally recognized publication program. Since 1880 The Canadian Field-Naturalist and its predecessors have constituted the scientific core of the OFNC’s publication program, with Trail & Landscape being an important Ottawa Valley publication since the late 1960s. The importance of both publications to the growth and health of the organization is reflected in the major surges in Club membership experienced when each of these publications was established. The focus of membership activities has changed over the history of the OFNC, with enlightened natural resource management, then original scientific research and local exploration directing energies in the early decades. By the early years of the 20th century the publications program become the raison d’etre of the Club, almost to the exclusion of local field activities. A renewed interest in field discovery and the growth of conservation awareness in the 1960s, however, rekindled local activities and re-established the balance which has sustained the organization throughout its history. Natural environment education has remained a critical theme within OFNC programs and activities. Over and above inspiring the professional careers and private interests of thousands of individuals for more than a century, the OFNC has had an important and lasting impact on the conservation of natural environment features and landscapes in Canada and North America.

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Edward Hicks Reads the Book of Nature

Earth Sciences History ◽

10.17704/eshi.2.2.vh65251244281804 ◽

1983 ◽

Vol 2 (2) ◽

pp. 91-96

Author(s):

Charlotte Porter

Keyword(s):

Natural History ◽

19Th Century ◽

Natural Environment ◽

Art History ◽

War Of 1812 ◽

Book Of Nature ◽

History Of ◽

Special Concern ◽

New Nation ◽

Peaceable Kingdom

The special concern with organized natural history which distinguished the Philadelphia community following the War of 1812 can be found in surprising places. The natural environment of the new nation thoroughly Americanized a biblical subject in the paintings of Edward Hicks (1780-1849), a devoted Quaker who lived in Bucks County, Pennsylvania. Although little is known about his artistic methods, his compositions of the "Peaceable Kingdom" are probably the most famous examples of 19th-century folk art in this country.Hicks' pictorial idiom is so idiosyncratic that it has tended to defy placement within the American developments within art history of his time. However, the geological theories of the period help to clarify some of Hicks' oddly organized compositions, particularly those which introduce the Falls of Niagara, the Natural Bridge of Virginia or the Delaware Water Gap and give a rationale to Hicks' wooden style of painting typical of American folk artists.

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

Behavioral and Brain Sciences ◽

10.1017/s0140525x19002413 ◽

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.

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