Download or read book A Taxonomic Study of the Nearctic Spider Wasps Belonging to the Tribe Pompilini Hymenoptera Pompilidae written by Howard Ensign Evans and published by . This book was released on 1951 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by and published by . This book was released on 1962 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Desert Arthropods Life History Variations written by Fred Punzo and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is difficult for me to recollect a time when I was not fascinated with the very notion of a desert. Walt Disney's film, The Living Desert, which I initially saw when I was 8 years of age, provided me with my first glimpse of this wondrous yet seemingly ho stile environment. The images were hypnotic and captivating. I looked on in amazement at the promenade Cl deux of the male and female scorpions during courtship. Their rhythmic and coordinated movements as they grasped one another made them appear to glide in unis on over the surface of the sand, each individual totally absorbed with its partner. In the next minute the fern ale had suddenly and utterly transformed herself like some Jekyll and Hyde act, into an aggressive predator whose prior gregarious embrace was now a hold of death for the male. The indomitable desert grasshopper mouse, the ever sentient kit fox, the graceful shovel-nosed snake swimming in an endless sea of sand.
Download or read book Taxonomic Study of the Nearctic Spider Wasps Belonging to the Tribe Pompilini Hymenoptera written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Revision of the Nearctic Species of the Pompilid Genus Pepsis Hymenoptera Pompilidae written by Paul David Hurd and published by . This book was released on 1952 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systematics of the California Species of the Genus Pepsis Fabricius Hymenoptera Pompilidae written by Paul David Hurd (Jr.) and published by . This book was released on 1948 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Animal Identification Insects written by Reginald William Sims and published by British Museum Press. This book was released on 1980 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Taxonomic Study of the Nearctic Spider Wasps Belonging to the Tribe Pompilini Hymenoptera written by Howard Ensign Evans and published by Nabu Press. This book was released on 2013-10 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Download or read book The Biology of the Nearctic Spider Wasps Hymenoptera Pompilidae written by Carl Masaru Yoshimoto and published by . This book was released on 1955 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systematics of the California Species of the Genus Pepsis Fabricius Hymenoptera Pompilidae written by Paul David Hurd and published by . This book was released on 1948 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nearctic Wasps of the Subfamilies Pepsinae and Ceroplinae written by Henry Townes and published by . This book was released on 1957 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper completes a taxonomic revision of the Nearctic Psammocharidae, other sections of the family having been treated in previous literature.
Download or read book Studies on the Structure of the Fish School written by Charles Marcus Breder and published by . This book was released on 1951 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: "One. The organization of a school of Jenkinsia is based on visual cues which become inoperative at just about the visual limit in man under certain conditions or before it under others. 2. Normally a school of Jenkinsia maintains a specified distance from solid vertical objects such as piles, and approaches twice as close to light-colored ones as to dark-colored. 3. The formation of a mill in Jenkinsia, typically based on extrinsic factors, may evidently under certain conditions be based on strictly intrinsic factors. 4. A mill of 3 feet in diameter of about 500 fish had members at the periphery traveling at about 3 inches per second. 5. Such a mill traveling around the wall of a circular tank traveled at the rate of about 1.4 feet per minute. 6. Individual fish near the center of a mill are more closely spaced than are those at its periphery. 7. A mill passing along a wall moves in a direction that a wheel would in rolling along a similar surface but with many more revolutions than a wheel would show without slipping. 8. Isolation of an individual or a small group for as short a time as a week will cause them to show reluctance to join a larger group. 9. Effects of weather such as rippled surface of the water or passing clouds tend to loosen the school, so that it is found in its most striking cohesive form close to the surface on days of clear skies and no wind. 10. Small differences in water temperature control the form and location of a school to a marked extent, certain isothermal lines acting as an effective barrier to the passage of such schools. 11. Within a school of somewhat mixed sizes there appears to be continual self-sorting, resulting in fish of the most nearly similar sizes being found together. 12. Aggressive behavior and aggregating tendencies are considered in theoretical terms in reference to school formation, simple aggregation, and solitary habits. 13. Further analytical suggestions are indicated with reference to future work extending to greater refinement of method than has been possible up to the present"--P. 25.
Download or read book Bulletin of the American Museum of Natural History written by American Museum of Natural History and published by . This book was released on 1952 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprises articles on geology, paleontology, mammalogy, ornithology, entomology, and anthropology.
Download or read book The Great Basin Naturalist written by and published by . This book was released on 1997 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Robber Flies of the World written by Frank Montgomery Hull and published by . This book was released on 1962 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biosystematics of the Spider Genus Brachythele Ausserer Araneida Dipluridae written by Michael M. Bentzien and published by . This book was released on 1976 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalog of the Library of the Academy of Natural Sciences of Philadelphia written by Academy of Natural Sciences of Philadelphia. Library and published by . This book was released on 1972 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
