GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Keywords: Metazoa -- Phylogeny. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (764 pages)
    Edition: 1st ed.
    ISBN: 9783110277524
    DDC: 576.88
    Language: English
    Note: Intro -- List of Contributing Authors -- 1 Introduction -- Part I: New Data and Phylogenies -- 2 Progress and perspectives of the deep nonbilaterian phylogeny, with focus on sponges (Phylum Porifera) -- 3 Phylogenetics and phylogenomics at the root of the Metazoa -- 4 The Chaetognatha : An anarchistic taxon between Protostomia and Deuterostomia -- 5 Brain complexity in protostomes -- 6 Brains in Gastrotricha and Cycloneuralia â€" a comparison -- 7 Phylogeny of platyzoan taxa based on molecular data -- 8 Lophophorata monophyletic â€" after all -- 9 Phylogeny and evolution of Annelida based on molecular data -- 10 From morphology to phylogenomics: Placing the enigmatic Myzostomida in the tree of life -- 11 Coeloms and nephridia in annelids and arthropods -- 12 Arthropod phylogeny and the origin of Tracheata (= Atelocerata) from Remipediaâ€"like ancestors -- 13 Phylogeny of the most species-rich group on Earth, the Pterygota : Ancient problems, living hypotheses and bridging gaps -- 14 The central complex in Crustacea -- 15 Advances in molecular phylogeny of crustaceans in the light of phylogenomic data -- 16 Phylogeny of the Chelicerates: Morphological and molecular evidence -- 17 Deuterostome phylogeny â€" a molecular perspective -- 18 Deuterostome phylogeny â€" a morphological perspective -- 19 Mitochondrial gene order in Metazoa â€" theme and variations -- Part II: New Tools and Methods -- 20 Documenting Morphology: Morph·D·Base -- 21 Neurophylogeny â€" from description to character analysis -- 22 Computational methods for the analysis of mitochondrial genome rearrangements -- 23 RNA in phylogenetic reconstruction -- 24 Intron positions and near intron pairs -- 25 Molecular morphology: Higher order characters derivable from sequence information -- 26 Systematic errors in maximum-likelihood tree inference. , 27 Topological bias of maximum-likelihood trees inferred from star phylogenies in the event of correct and incorrect model assumptions -- 28 Exploring phylogenomic data -- References -- Index.
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-1432
    Keywords: Key words: Ribosomal internal transcribed spacer 1 — Secondary structure conservation — Phylogenetic analysis — Analysis of apomorphies — Digenea —Cyathura carinata— Isopoda
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract. A comparison of ribosomal internal transcribed spacer 1 (ITS1) elements of digenetic trematodes (Platyhelminthes) including unidentified digeneans isolated from Cyathura carinata (Crustacea: Isopoda) revealed DNA sequence similarities at more than half of the spacer at its 3′ end. Primary sequence similarity was shown to be associated with secondary structure conservation, which suggested that similarity is due to identity by descent and not chance. Using an analysis of apomorphies, the sequence data were shown to produce a distinct phylogenetic signal. This was confirmed by the consistency of results of different tree reconstruction methods such as distance approaches, maximum parsimony, and maximum likelihood. Morphological evidence additionally supported the phylogenetic tree based on ITS1 data and the inferred phylogenetic position of the unidentified digeneans of C. carinata met the expectations from known trematode life-cycle patterns. Although ribosomal ITS1 elements are generally believed to be too variable for phylogenetic analysis above the species or genus level, the overall consistency of the results of this study strongly suggests that this is not the case in digenetic trematodes. Here, 3′ end ITS1 sequence data seem to provide a valuable tool for elucidating phylogenetic relationships of a broad range of phylogenetically distinct taxa.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The paired organ of Bellonci protrudes from the optic lobe of the giant Antarctic isopod, Glyptonotus antarcticus. It is linked to the cortex by a broad peduncle. No connection to the cuticle or “sensory pore organ” was found. A cluster of sensory-like cells forms two outer ciliary segments branching into numerous microvilli with microtubules. The putative sensory somata are irregular in shape and contain a very high density of glycogen granules. The two outer segments sprout from two pits of the soma in different directions, forming a right angle. Glial cells wrap around the sensory cells and also delimit lacunae into which bundles of microvilli project. These lacunae contain electron-dense granules of small size and with species-specific patterns. Lacunae and dense granules show features typical of a degeneration process in the sensory cells.This general morphology corresponds to the unilobular type of organ of Bellonci, known in other isopods; it differs from the plurilobular type with onion bodies found in other Crustacea.
    Additional Material: 20 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2024-05-03
    Description: Rapid changes of the biosphere observed in recent years are caused by both small and large scale drivers, like shifts in temperature, transformations in land-use, or changes in the energy budget of systems. While the latter processes are easily quantifiable, documentation of the loss of biodiversity and community structure is more difficult. Changes in organismal abundance and diversity are barely documented. Censuses of species are usually fragmentary and inferred by often spatially, temporally and ecologically unsatisfactory simple species lists for individual study sites. Thus, detrimental global processes and their drivers often remain unrevealed. A major impediment to monitoring species diversity is the lack of human taxonomic expertise that is implicitly required for large-scale and fine-grained assessments. Another is the large amount of personnel and associated costs needed to cover large scales, or the inaccessibility of remote but nonetheless affected areas. To overcome these limitations we propose a network of Automated Multisensor stations for Monitoring of species Diversity (AMMODs) to pave the way for a new generation of biodiversity assessment centers. This network combines cutting-edge technologies with biodiversity informatics and expert systems that conserve expert knowledge. Each AMMOD station combines autonomous samplers for insects, pollen and spores, audio recorders for vocalizing animals, sensors for volatile organic compounds emitted by plants (pVOCs) and camera traps for mammals and small invertebrates. AMMODs are largely self-containing and have the ability to pre-process data (e.g. for noise filtering) prior to transmission to receiver stations for storage, integration and analyses. Installation on sites that are difficult to access require a sophisticated and challenging system design with optimum balance between power requirements, bandwidth for data transmission, required service, and operation under all environmental conditions for years. An important prerequisite for automated species identification are databases of DNA barcodes, animal sounds, for pVOCs, and images used as training data for automated species identification. AMMOD stations thus become a key component to advance the field of biodiversity monitoring for research and policy by delivering biodiversity data at an unprecedented spatial and temporal resolution.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...