Zoology: invertebrates Books

Book SynopsisDorylaims are probably the most diverse order of nematodes and are often an abundant component of the fauna in soils and freshwater habitats. As a result of their widespread distribution and many different feeding habits, they are considered as good bio-indicators of environmental quality and soil health. Their usefulness in this regard is only impeded by practical difficulties related to the accurate identification of the members of such a large and complex group. In this volume, Professor Reyes Peña-Santiago gives a detailed morphology of the dorylaims and provides a thorough overview of their feeding behaviour, reproduction, ecology, and diversity. You will learn what dorylaims are like and how they live, making this book an invaluable tool for nematologists, ecologists and other scientists who wish to embark on an in-depth study of the members of this fascinating group.Table of ContentsPreface Acknowledgements 1. Concept   Morphological characterisation: distinctive features   Biology   Distribution   Diversity 2. General aspect   Size   Shape   Habitus   Colour 3. Body wall and pseudocoel   Cuticle    Structure (layers)    Surface ornamentation    Specialisations   Body pores   Epidermis and lateral chords   Somatic musculature   Pseudocoel and its components 4. Lip region and amphids   Lip region shape    Profile (contour)    Anterior margin    Tapering    Differentiation (separation from the adjoining body)   Lips and their papillae    General pattern    Lips    Papillae    Oral aperture (mouth)    Oral field   Amphids    Basic structure    Position    Aperture    Fovea 5. Stoma and feeding apparatus   Cheilostom    Detailed structure    General morphology   Guiding ring    Guiding sheath    Mural tooth    Axial odontostyle    Odontophore    Musculature associated with stoma 6. Digestive tract   Pharynx    General morphology    Sections    Ultrastructure    Anterior section    Enlargement    Basal expansion and pharyngeal glands    Basic patterns   Pharyngo-intestinal junction   Intestine proper   Prerectum   Rectum 7. Female genital system   General concept and terminology   Ovary   Oviduct   Sphincter   Uterus    Basic types    Uterine special differentiations   Vagina    Vulva    Malformations 8. Male genital system   General concept   Testes   Genital tract   Spicules   Lateral guiding pieces   Gubernaculum   Genital papillae (supplements) and other papillae   Specialised musculature   Glands associated with male genital system 9. Nervous system and receptors   Central nervous system   Nerves   Cephalic nervous system   Pharyngeal nervous system   Recto-sympathetic nervous system   Sensory structures    Chemoreceptors   Amphids   Other chemoreceptive elements    Mechanoreceptors   Labial and cephalic papillae   Other mechanoreceptive elements 10. Caudal region   General concept   Tail shape   Tail sexual dimorphism   Postembryonic changes in tail shape   Functional and evolutionary aspects of tail shape 11. Feeding habits and feeding behaviour   Methodological constraints   Feeding spectrum   Feeding behaviour   Food suitability and selection   Feeding functional morphology   Excretion and osmo-regulation in dorylaims 12. Reproduction and development   Bisexual vs monosexual species   Gatemetogenesis and egg production   Embryonic development and hatching   Postnatal development – general aspects   Moulting process   Genital system development   Other (minor) postnatal changes   Life cycle and life span 13. Ecology and Biogeography   Rationale – dorylaims as K-strategists   Dorylaims as components of nematode communities   Local distribution   Vertical (depth) distribution   Temporal (seasonal) distribution   Regional distribution   Global distribution .    The distribution of particular taxa – some examples    Historic biogeography    Phylogeography   Dispersal and transport   Chorological relationships   Biotic interactions   Dorylaims as bioindicators in a global change scenario   Notes on survival 14. Diversity   Historical outline    The origins (1845-1920)    The prodigious 1930s decade    The order Dorylaimida setting    The golden age of the exploration of dorylaimid diversity (1960-1990)    A new era for an integrative approach   The internal phylogeny of Dorylaimida   Evolutionary relationships of Dorylaimida with other nematode taxa    Dorylaims – members of the subclass Dorylaimia    Mononchs – the closest relatives of dorylaims?    Dorylaims and other animal-parasitic Dorylaimia    Dorylaimida and other non-Dorylaimia    Updated inventory of dorylaimid taxa Subject Index Cited Taxa Index

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