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Invertebrates
Animals having no backbone or spinal column, such as insects, mollusks, crustaceans, worms, and similar organisms.
Subtopics:
Arthropods (32 items)
Bryozoans and brachiopods (1 items)
Coelenterates (13 items)
Conodonts (2 items)
Echinoderms (2 items)
Mollusks (14 items)
Sponges (2 items)
Tunicates (2 items)
Worms (2 items)
Related topics:


Results 1 - 44 of 63 listed by similarity [list alphabetically]
Biological resource status and trends: Other invertebrates [More info]
Information concerning status and trends of biological resources, focusing on other invertebrates
Apoidea -- Bees and Sphecid Wasps [More info]
Guide to the identification, biology, and ecology of bees and sphecid wasps, mostly in eastern North America.
PDF Beyond the Golden Gate--oceanography, geology, biology, and environmental issues in the Gulf of the Farallones [More info]
A geologic and oceanographic study of the waters and Continental Shelf of Gulf of the Farallones adjacent to the San Francisco Bay region. The results of the study provide a scientific basis to evaluate and monitor human impact on the marine environment.
Biological resource status and trends: Coleoptera (beetles) [More info]
Information concerning status and trends of biological resources, focusing on Coleoptera (beetles)
Biological resource status and trends: Corals and sponges [More info]
Information concerning status and trends of biological resources, focusing on corals and sponges
Biological resource status and trends: Crustaceans [More info]
Information concerning status and trends of biological resources, focusing on Crustaceans
Biological resource status and trends: Diptera (flies) [More info]
Information concerning status and trends of biological resources, focusing on Diptera (flies)
Biological resource status and trends: Ephemeroptera (mayflies) [More info]
Information concerning status and trends of biological resources, focusing on Ephemeroptera (mayflies)
Biological resource status and trends: Hymenoptera (bees and wasps) [More info]
Information concerning status and trends of biological resources, focusing on Hymenoptera (bees and wasps)
Biological resource status and trends: Insects [More info]
Information concerning status and trends of biological resources, focusing on Insects
Biological resource status and trends: Lepidoptera (butterflies and moths) [More info]
Information concerning status and trends of biological resources, focusing on Lepidoptera (butterflies and moths)
Biological resource status and trends: Mollusks [More info]
Information concerning status and trends of biological resources, focusing on Mollusks
Butterflies and moths of North America [More info]
Information on species of butterflies in North America with photos, checklists, distribution maps, aids to identification, and references.
Coastal and Marine Geology Program [More info]
Home page for Coastal and Marine Geology with links to topics of interest (sea level change, erosion, corals, pollution, sonar mapping, and others), Sound Waves monthly newsletter, field centers, regions of interest, and subject search system.
PDF Coral Diseases Following Massive Bleaching in 2005 Cause 60 Percent Decline in Coral Cover and Mortality of the Threatened Species, Acropora Palmata, on Reefs in the U.S. Virgin Islands [More info]
Record-high seawater temperatures and calm seas in the summer of 2005 led to the most severe coral bleaching (death) ever observed in the U.S. Virgin Islands.
Coral mortality and African dust [More info]
Report with mini-movie and photos on the hypothesis that the atmospheric transport of dust arising from the desertification in northern Africa led to algal infestation of corals, coral diseases, and the near extinction of associated sea urchins.
PDF Corals as climate recorders [More info]
Shows how coral reef specimens are collected, the type of information gained from them, and the methods by which they are measured and studied to understand recent (past few centuries) changes in climate.
PDF Detailed seafloor habitat mapping to enhance marine-resource management [More info]
We conduct systematic imaging of reef habitats in order to provide regulatory agencies with information they need to decide whether those reefs should be designated as protected areas.
Dragonflies and damselflies (Odonata) of the United States [More info]
Manual on dragonflies and damselflies (Odonata), with links to photo thumbnails, checklists, distribution maps, and other Odonata information.
Early Paleozoic biochronology of the Great Basin, western United States [More info]
Publication (PDF format) in three parts on the biostratigraphy and lithostratigraphy of the Ibexian Series in the North American Ordovician, with sections on the southern Egan Range, Nevada and the biostratigraphy of the eastern Great Basin.
Earthworms of North Dakota [More info]
Species maps, aggregate map, earthworm diagram, species photos, and bibliography of earthworm species found in North Dakota
PDF Effects of Ocean Acidification and Sea-Level Rise on Coral Reefs [More info]
By measuring the current and historical growth rates of coral skeletons, and using field experiments, we intend to find out whether rising atmospheric CO2 and rising sea levels will cause coral reefs to erode and cease to function.
PDF Environmental Monitoring and Assessment Program Western Pilot Project - Conditions of North Dakota Perennial Streams for Water Chemistry and Mercury in Fish Tissue, 2000-2003 [More info]
Sixty-five sampling sites, selected by a statistical design to represent lengths of perennial streams in North Dakota, were chosen to be sampled for water chemistry and mercury in fish tissue to establish unbiased baseline data.
PDF Estuaries of the Greater Everglades Ecosystem: Laboratories of Long-term Change [More info]
Explains how we reconstruct past environmental conditions, especially salinity, to help guide ecosystem restoration efforts in this area.
EverView Data Viewer [More info]
Software and data to help people model the likely response of populations of organisms to various strategies that might be employed to remedy the effects of damaged ecosystems.
Free-living and parasitic copepods (including Branchiurans) of the Laurentian Great Lakes [More info]
Manual of taxonomic keys, location, and descriptive details of free-living and parasitic copepods in the Great Lakes. Viewing requires screen resolution of 1024 x 768 or above.
PDF Gulf of Mexico deep-sea coral ecosystem studies, 2008-2011 [More info]
Deep-sea corals, also known as cold-water corals, have become a topic of interest due to conservation concerns over the impacts of trawling, exploration for oil and gas, and climate change.
Invasive crayfish in the Pacific Northwest [More info]
These organisms have negative effects on local ecosystems, but we don't yet know how extensively they have spread. Here is a key to help people identify them.
Marine nuisance species: colonial tunicates of the genus Didemnum (a sea squirt) [More info]
Occurrence, photos, and characteristics of some species of the colonial tunicate genus Didemnum, nuisance species that reproduce rapidly and foul marine habitats (including shellfish aquacultures and fishing grounds), ship's hulls, and maritime structure
Mayflies of the United States [More info]
Links to checklists and species maps showing the distribution of mayflies in the United States with links to other information websites on mayflies and reference list.
Mollusks [More info]
Information on mollusks and uses of the identification of fossil mollusks in the fields of biostratigraphy, geochronology, paleocoeanography, paleoecology and ecosystems history. Links to experts and related USGS projects.
National analysis of trace elements in ground water, streams, stream and reservoir sediment, and fish and clam tissue across the United States [More info]
Trace elements are inorganic chemicals occurring in small amounts in nature. This web site of the National Water Quality Assessment links to U.S. data, publications, news, and other sites on trace metals, metalloids and radionuclides in water.
Nonindigenous annelid distribution information [More info]
Descriptions of annelids and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on annelids.
Nonindigenous aquatic species alert system [More info]
Reports indicating locations where non-indigenous aquatic organisms have been collected. Includes RSS feed you can subscribe to.
Nonindigenous bryozoan distribution information [More info]
Descriptions of bryozoans and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on bryozoans.
Nonindigenous coelenterate distribution information [More info]
Descriptions of coelenterates and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on coelenterates.
Nonindigenous crustacean distribution information [More info]
Descriptions of crustaceans and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on crustaceans.
Nonindigenous mollusk distribution information [More info]
Descriptions of mollusks and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on mollusks.
Nonindigenous Plants and Animals in Florida [More info]
Brief descriptions of programs of research on aquatic nonindigenous plants and animals at the Florida Integrated Science Center with links to descriptions, videos, posters, and reports on various exotic plant and animals species.
Nonindigenous sponge distribution information [More info]
Descriptions of sponges and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on sponges.
Nonindigenous tunicate distribution information [More info]
Descriptions of tunicates and examples of the deleterious effects of nonindigenous species, with links to distribution maps, species lists and related information on tunicates.
North American Pollinator Protection Campaign [More info]
An effort focused on encouraging the health of resident and migratory pollinating animals in North America. USGS participates in the leadership of this effort.
Oculina Bank - geology of a deep-water coral reef habitat off Florida [More info]
Brief report on sidescan sonar data, sediment sampling, and submersible and video photography studies of destruction of deep-water coral pinnacles where fish spawn off east-central Florida in the Oculina Bank in order to restore and protect the habitat.
Paleontological analyses [More info]
Links to USGS capabilities in paleontological analyses of fossils such as mollusks, diatoms, palynomorphs, ostracodes, calcareous nannofossils, etc. Includes descriptive information, technique, equipment, and contacts for each fossil group.
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