Reproductive cooperation between queens and their mated workers: the complex life history of an ant with a valuable nest.

The life history of Harpegnathos saltator is exceptional among ants because both queens and workers reproduce sexually. Recently mated queens start new colonies alone, but later some of the offspring workers also become inseminated and take over the egg-laying role. This alternation seems associated with the existence of very complex underground nests, which are designed to survive floods. Longevity of ponerine queens is low (a consequence of limited caste dimorphism in this "primitive" subfamily), and upon the death of an H. saltator foundress, the nest represents a substantial investment. The queen's progeny should thus be strongly selected to retain the valuable nests. Unlike the flying queens, the workers copulate with males from their own colonies, and, thus, their offspring are expected to be highly related to the foundress. Colony fission appears not to occur because a daughter fragment would lack an adequate nest for protection. Thus, the annual production of queens in colonies with reproductive workers remains essential for the establishment of new colonies. This contrasts with various other ponerine species in which the queens no longer exist.

The brown-tail moth, Euproctis chrysorrhcea (L.). A report on the life history and habits of the imported brown-tail moth, together with a description of the remedies best suited for destroying it. By Charles H. Fernald ... and Archie H. Kirkland ... Pub. under the direction of the State board of agriculture by authority of the legislature.

1903

The brown-tail moth, Euproctis chrysorrhcea (L.). A report on the life history and habits of the imported brown-tail moth, together with a description of the remedies best suited for destroying it. By Charles H. Fernald ... and Archie H. Kirkland ... Pub. under the direction of the State board of agriculture by authority of the legislature.

1903

Tracking evolutionary paths in colonizing events temporal changes in life-history traits, microsatellites and inversions in Drosophila subobscura

Tese de doutoramento, Biologia (Biologia Evolutiva), Universidade de Lisboa, Faculdade de Ciências, 2016

Effects of suspended solids and sediment on reproduction and early life of warmwater fishes : a review /

Mode of access: Internet.

Pictorial life history of the apothecary chemist Carl Wilhelm Scheele,

Cover-title: The apothecary chemist Carl Wilhelm Scheele.

A land of heroes; stories from early Irish history.

Mode of access: Internet.

Life history album; tables and charts for recording the development of body and mind from childhood upwards, with introductory remarks.

Mode of access: Internet.

On the life-history of a soil amoeba,

Cover title.

William Penn's early life in brief, 1644-1674,

"Edition strictly limited to 300 copies, numbered and signed by the author."

The makers of Maine; essays and tales of early Maine history, from the first explorations to the fall of Louisberg, including the story of the Norse expeditions.

Mode of access: Internet.

Early life of Eamonn de Valera,

Mode of access: Internet.