Download Free Revision Of The Middle American Clade Of The Ant Genus Stenamma Westwood Hymenoptera Formicidae Myrmicinae Book in PDF and EPUB Free Download. You can read online Revision Of The Middle American Clade Of The Ant Genus Stenamma Westwood Hymenoptera Formicidae Myrmicinae and write the review.

Stenamma is a cryptic ?leaf-litter? ant genus that occurs in mesic forest habitats throughout the Holarctic region, Central America, and part of northwestern South America (Colombia and Ecuador). The genus was thought to be restricted primarily to the temperate zone, but recent collecting efforts have uncovered a large radiation of Neotropical forms, which rival the Holarctic species in terms of morphological and behavioral diversity. By inferring a broad-scale molecular phylogeny of Stenamma, Branstetter (2012) showed that all Neotropical species belong to a diverse Middle American clade (MAC), and that this clade is sister to an almost completely geographically separated Holarctic clade (HOC). Here, the Middle American clade of Stenamma is revised to recognize 40 species, of which 33 are described as new. Included in the revision are a key to species based on the worker caste, and for each species where possible, descriptions and images of workers and queens, images of males, information on geographic distribution, descriptions of intraspecific variation, and notes on natural history. Several species groups are defined, but the majority of species remain unassigned due to a lack of diagnostic morphological character states for most molecular clades.
This contributed volume presents an analysis of the current conservation status of major faunal groups in Mexico. The chapters describe a prognosis of future challenges, and also explore the expanding threats inherent in the Anthropocene within the context of the unique physical, biological and cultural aspects of the nation. Covering 27 chapters, and written by Mexican and international authors, this book analyzes a wide range of vertebrate and invertebrate animal taxa, their ecosystems and the critical processes related to their present conservation status. This volume is an important reference material for researchers, conservationists and students interested in the biological and ecological processes shaping the Mexican fauna.
CD-ROM contains high resolution digital images of most of the type species.
The Hymenoptera is one of the largest orders of terrestrial anthropods and compromises the sawflies, wasps, ants, bees and parasitic wasps. This book examines the current state of all major areas of research for this important group of insects, including systematics, biological control, behaviour and use in education.
From the Pulitzer Prize-winning authors of The Ants comes this dynamic and visually spectacular portrait of Earth's ultimate superorganism. The Leafcutter Ants is the most detailed and authoritative description of any ant species ever produced. With a text suitable for both a lay and a scientific audience, the book provides an unforgettable tour of Earth's most evolved animal societies. Each colony of leafcutters contains as many as five million workers, all the daughters of a single queen that can live over a decade. A gigantic nest can stretch thirty feet across, rise five feet or more above the ground, and consist of hundreds of chambers that reach twenty-five feet below the ground surface. Indeed, the leafcutters have parlayed their instinctive civilization into a virtual domination of forest, grassland, and cropland—from Louisiana to Patagonia. Inspired by a section of the authors' acclaimed The Superorganism, this brilliantly illustrated work provides the ultimate explanation of what a social order with a half-billion years of animal evolution has achieved.
Table of contents
Originally published in 1928, this volume, by a world authority on the subject, sums up our knowledge of the social insects. It inquires what are the social insects and what it is that makes us call them ‘social’. Terebrantia, aculeata, wasps, bees, ants, and termites are discussed in a succession of chapters, showing how they have evolved, to how great an extent they have developed, and what are the peculiarities of their evolution. Polymorphism, the Social Medium, Guests and Parasites of the Social Insects, are other subjects discussed in this fascinating book.