Animals from A to Z bietet Informationen über viele Arten an Vögeln, Säugetieren, Amphibien und Reptilien, die im Oakland Zoo leben. Zu den einzelnen Tierarten sind in der Regel Beschreibungen, Abbildungen und weitere Anmerkungen verfügbar; in manchen Fällen sind kleine Filme und Tonaufnahmen abrufbar. [Redaktion vifabio]
The BFV Online provides interactive access to the SVP's Bibliography of Fossil Vertebrates series. Using the BFV Online , users can specify a search criterion, and receive a formatted list of matching literature references. Queries are formed like taxon = 'Tyrannosaurus'. Detailed instructions are available for writing queries. Complicated Boolean queries and pattern-matching are supported. All BFV references are copyrighted material belonging to the Society of Vertebrate Paleontology. ... [Information of the supplier]
WildFinder is a map-driven, searchable database of more than 30,000 species worldwide, with a powerful search tool that allows users to discover where species live or explore wild places to find out what species live there. Containing information on birds, mammals, reptiles, and amphibians, WildFinder is a valuable resource for scientists, students, educators, travelers, birdwatchers and nature enthusiasts alike. ... [Information of the supplier]
Wildlife & Ecology Studies Worldwide is the world’s largest index to literature on wild mammals, birds, reptiles, and amphibians — nearly 668,000 bibliographic records, many include abstracts. The databases in this exclusive collection offer a global perspective and together form the ultimate resource on wildlife information. NISC’s unique composite records feature ensures access to all the citations without duplication. All aspects of wildlife and wildlife management are covered in this comprehensive volume. Approximately 18,000 records are added per year. ... [Information of the supplier]
InfoNatura provides conservation status, taxonomic, and distribution information for over 6,000 bird, mammal, and amphibian species in Latin America and the Caribbean. InfoNatura represents a "snapshot" of dynamic data that are continually being refined in NatureServe's central databases. We update InfoNatura one to two times each year to reflect new data from refined geographic surveys, the latest taxonomic treatments, and any new conservation status assessments. Future versions of InfoNatura will include data for additional taxonomic groups such as reptiles. ... [Information of the supplier]
On this website, one will be able to find the photographs of ascidian species from all over the world. The goal of each species page is to show several photographs of that species, preferably at different localities, to get an idea of the intra-specific variation present (for example see Ciona intestinalis). [Information of the supplier]
Digital Morphology, part of the National Science Foundation Digital Libraries Initiative, develops and serves unique 2D and 3D visualizations of the internal and external structure of living and extinct vertebrates, and a growing number of 'invertebrates'. The Digital Morphology library contains nearly a terabyte of imagery of natural history specimens that are important to education and central to ongoing cutting-edge research efforts. The Digital Morphology library site now serves imagery, optimized for Web delivery, for almost 300 specimens contributed by more than 80 collaborating researchers from the world's premiere natural history museums and universities. ... [Information of the supplier]
Apart from a general introduction to the Tunicata, the following notes on certain species are available: descriptions, habitat and distribution. Two online keys allows there determination either by illustrations or diagnostical characters. A comprehensive list of literature references and a glossary are available. Information about higher taxa (Metazoa, Bilateria, Deuterostomia) are also provided. ... [Editorial staff vifabio]
You have entered the world of the “not so spineless invertebrates”. Typically invertebrates have no backbone. The Tunicata, commonly referred to as Tunicates, are among the highest of the invertebrates because they constitute a subphylum of the phylum Chordata (animals with a notochord or backbone). This classification is justified because they exhibit a notochord during their larval stage that is used for swimming to find their ideal habitat. Once the habitat is found, the animal attaches and settles and as the animal develops into adulthood the notochord is reabsorbed and the notochord shrinks down to a simple ganglion. The name “tunicate” comes from the animal’s outer covering called the tunic. There are no freshwater species of tunicates, all are marine. Tunicates are filter feeders, meaning that they rely on water current for food or nutrients. There are benthic tunicates (those that attach) and pelagic tunicates (the free swimmers). The two types of benthic tunicates are solitary and colonial (several individuals sharing a tunic). Tunicates come in various colors; some individuals are quite striking in life. ... [Information of the supplier]
This key was designed to be easy-to-use and accessible to a diverse audience. As such, I have focused on describing gross morphology and external features as much as possible. Biologists searching for more detailed information on internal anatomy should consult the references listed at the bottom of each species description page. In some cases it is necessary to observe internal anatomy to make an identification. Following proper narcotisation and preservation some organisms will need to be dissected. For solitary and social tunicates, begin by cutting from the oral siphon towards the base until the tunicate opens like a book. Cut through the tunic, the body wall, and the pharynx, but carefully avoid the digestive and reproductive tracts. Remove the pharynx from the tunic (i.e., sever the pharynx from the digestive tract). Zooids and internal anatomy of colonial species can be observed by dislodging zooids from the tunic, either by prodding the colony surface or by cutting the colony parallel to the long axis of the zooids. ... [Information of the supplier]