Author: Publisher:
ISBN:
Category : Caves
Languages : en
Pages : 288
Book Description
Bloomington Indiana Grotto Newsletter
Author: Nittany Grotto Newsletter
Author: Geological Survey Bulletin
Author: Bulletin of the National Speleological Society
Author: National Speleological SocietyPublisher:
ISBN:
Category : Caves
Languages : en
Pages : 168
Book Description
NSS News
Author: Habitats and Ecological Communities of Indiana
Author: John O. Whitaker, Jr.Publisher: Indiana University Press
ISBN: 0253005205
Category : Nature
Languages : en
Pages : 513
Book Description
In Habitats and Ecological Communities of Indiana, leading experts assess the health and diversity of Indiana's eight wildlife habitats, providing detailed analysis, data-generated maps, color photographs, and complete lists of flora and fauna. This groundbreaking reference details the state's forests, grasslands, wetlands, aquatic systems, barren lands, and subterranean systems, and describes the nature and impact of two man-made habitats—agricultural and developed lands. The book considers extirpated and endangered species alongside invasives and exotics, and evaluates floral and faunal distribution at century intervals to chart ecological change.
The NSS Bulletin
Author: National Speleological SocietyPublisher:
ISBN:
Category : Caves
Languages : en
Pages : 318
Book Description
Southwest Indiana Highway Corridor, Gibson, Pike, Warrick, Monroe, Greene, and Daviess Counties
Author: The biology of hypogean fishes
Author: Aldemaro RomeroPublisher: Springer Science & Business Media
ISBN: 9401597952
Category : Science
Languages : en
Pages : 366
Book Description
Hypogean (cave, artesian) fishes have fascinated researchers even before they were described in the scientific literature in 1842. Since then, a number of scientists have used them to justify their own evolutionary ideas, from neo-Lamarckism to neo-Darwinism, from neutral evolution to selectionist approaches. Research in recent years has shown that these fishes are much more complex in their adaptations to the subterranean environment than previously believed: there are those with features expected from living in total darkness (complete blindness and depigmentation) and poor in nutrients (extremely low metabolic rates); others differ very little, if any, from their epigean (surface) ancestors in their morphology and physiology (but not so in their behavior). Some of them even live in nutrient-rich environments. Actually, one of the most overlooked facets of these animals is that there are more species of hypogean fishes without troglomorphisms (blindness, depigmentation) than with troglomorphic ones. The study of these apparently `unadapted' fishes is providing new insights into our understanding of the evolution of phenotypic characters, founding effect, behavioral, and physiological adaptations. The 86 species of troglomorphic fishes described so far belong to 18 different families, many of which would hardly fit the notion that they were 'preadapted' to conquer the underground environment. Further, many troglomorphic `species' show very little genotypic differentiation when compared with their putative ancestors, indicating that massive phenotype changes can be achieved via little genetic reorganization, a reorganization that mostly affects regulatory genes. These and many other topics are discussed in this volume containing 29 papers, written by 41 authors from 9 countries. Hopefully, this volume will convince many other researchers that hypogean fishes represent a unique opportunity to study a concept in evolutionary biology that is only superficially understood: convergent evolution.
Hydrogeology
Author: Fei JinPublisher: VSP
ISBN: 9789067642538
Category : Science
Languages : en
Pages : 328
Book Description
This book is a collection of papers presented in the symposia, held in Beijing, on hydrogeology. The papers deal with different topics providing information on some problems on riverside groundwater, assessment of groundwater contamination, and groundwater protection strategy.