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Invertebrates in Biological News

Snakes, salamanders and other creatures thrive in areas with higher deer populations

... of several species of snakes, salamanders, and invertebrates studied, a greater diversity of animals were ... The researchers then counted the number of invertebrates and vertebrates under each board every three to ... by comparing the variety of insect groups and invertebrates found in each area. The results, Greenwald ...

Red List overlooks island species

... to the Canary Islands (38 vertebrates, 510 plants, 2,960 arthropods or invertebrates and 196 molluscs) should be labelled as threatened, because only the ... Islands), are not covered by Red List criteria for threatened species. As invertebrates usually have a smaller distribution area than large vertebrates and birds ...

Uncovering secrets of life in the ocean

... Larvae of marine invertebrates worms, sponges, jellyfish - have the simplest eyes that exist. They ... early landmark in the evolution of animal eyes. Many contemporary marine invertebrates still employ the strategy for phototaxis. ...

UCSB researcher leads worldwide study on marine fossil diversity

... and lobsters, while also revealing that most of the early propagation of invertebrates took place before the Late Cretaceous period. In addition, the research contends that the increase of those invertebrates in the period since is relatively small when compared to the 100 million ...

Origins of the brain

... proteins was embellished by addition of new proteins with the evolution of invertebrates and vertebrates and this has contributed to the more complex behaviours of ... time, the synapse proteins from brains of flies, which confirmed that invertebrates have a simpler set of proteins than vertebrates. Most important for ...

Rats on islands disrupt ecosystems from land to sea, researchers find

... birds--sea gulls and oystercatchers, in particular--are major predators of invertebrates in the intertidal zone. In their absence, the snails, limpets, and other ... increase in abundance, eat more algae, and clear more space for other invertebrates to settle and grow. The result is a shoreline practically stripped bare of ...

Smithsonian scientists working to save microscopic threatened species

... habitat. In August, Zoo Reproductive Scientist Dr. Mary Hagedorn and invertebrates Keeper Mike Henley traveled to Puerto Rico with marine scientists involved ... healthy coral populations in the Caribbean. Meanwhile, at the Zoos invertebrates Exhibit, keeper Mike Henley has been coaxing the 12,000 coral larvae to ...

Leicester research paves way for first use in Europe of an insect to fight invasive plant

... to focus their collecting efforts on the precise region of Japan where the European clone of Japanese Knotweed originated. "A number of Japanese invertebrates and micro organisms have been subjected to a rigorous testing regime. The aim of biological control is not to eradicate the target organism, but to ...

NOAA report finds threats to California's Cordell Bank Marine Sanctuary

... in 1989, the sanctuary's productive waters are a destination feeding area for local and migratory marine life. Its unique rocky undersea thrives with invertebrates and fishes and is surrounded by the softer sediments of the continental shelf. ...

Wildlife Conservation Society supports world's first study of egg-laying mammal

... legs with long claws. The snout of the echidna ends in a tiny mouth with no teeth. Long-beaked echidnas feed on insect larvae, worms, and other invertebrates (whereas short-beaked echidnas prefer ants and termites). Echidnas and platypuses are more reptile-like than other mammals, with features such as: a ...

Enigmatic sea urchin structure catalogued

... into the axial complex of sea urchins ( Echinoidea ), an internal structure with unknown function, has shown that within that group of marine invertebrates there exists a structural evolutionary interdependence of various internal organs. The research, published in BioMed Central's open access journal ...

Elevated water temperature and acidity boost growth of key sea star species: UBC researchers

... increase the growth rate of a keystone species of sea star. The study is one of the first to look at the impact of ocean acidification on marine invertebrates that don't have a large calcified skeleton or external shell, and challenges current assumptions about the potential impact of climate change on ...

Remembrance of things past influences how female field crickets select mates

... attractive males beforehand were less attracted to average males than females that heard unattractive males beforehand," Bailey said. "In non-social invertebrates the outcome of male ornament evolution may depend much more on the ability of females to remember information about social encounters than was ...

Exploring the dynamic relationship between health and environment

... bites and a spike in malaria. Veterinarians keep their cattle healthy with doses of anti-parasiticsmedication that can harm populations of local invertebrates like dung beetles. Conservation of local biodiversity can contribute to increased food security and provide sources of medicine that can be ...

Soil and sediment contamination assessment more accurate

... The effects of Polycyclic Aromatic Compounds (PACs) on terrestrial and benthic invertebrates are used to estimate the risks of soil and sediment contamination. Effects are assessed exposing the organisms to PACs in life cycle tests. In ...

Genetic study finds treasure trove of new lizards

... for biodiversity conservation and management is that many species remain undocumented. "This problem is widely acknowledged to be dire among invertebrates and in developing countries. "But in this group of vertebrates in a developed nation, which we thought we knew reasonably well, we found more than ...

The law of the weakest

... in turn. In fact, communities of subpopulations following such rules have been identified in numerous ecosystems, ranging from coral reef invertebrates to lizards in the inner Coast Range of California. Such cyclical interaction is also familiarly termed "rock-paper-scissors" interaction. This is ...

As super-predators, humans reshape their prey at super-natural speeds

... in a total of 40 specific geographic systems. The bulk of the studies focused on impacts on fish populations, but other subjects included intertidal invertebrates such as limpets and snails, as well as bighorn sheep, caribou, and two plant species: Himalayan snow lotus and American ginseng. By harvesting ...

13 UCR faculty members recognized by American Association for the Advancement of Science

... William Fenical 68 Ph.D., now at UC San Diego: "For distinguished contributions to organic chemistry and natural products chemistry of marine invertebrates and bacteria from deep-sea sediments, particularly for the discovery and characterization of new antitumor compounds including salinosporamide A." ...

Expeditions reveal gulf of California's deep sea secrets, as well as human imprints

... because of their inaccessibility below scuba diving levels. "Our investigation resulted in many new discoveries, which included new species of invertebrates and possibly fishes," said Erisman. "Similarly, we collected and observed species that had not been recorded in the gulf, had never been observed ...

Digital zebrafish embryo provides the first complete developmental blueprint of a vertebrate

... understand these dynamic processes is to look at what happens in the first few hours of life in every part of an embryo. While this is possible with invertebrates with a few hundred cells, like worms for example, it has so far been impossible to achieve for vertebrates. "Imagine following all inhabitants of ...

Experts meet on need for new rules to govern world's fragile polar regions

... (e.g., viruses, bacteria, parasites, yeasts, fungi). In the Antarctic, however, tourist activities can compromise the region due to seeds, invertebrates and soil in their clothing and footwear, and in their provisions and equipment, says Dr. Leary. As well, visitors may introduce and spread ...

Fishing ban guards coral reefs against predatory starfish outbreaks

... exploited fishes, many of which are carnivores, cause a decline in small predatory fishes that favors larger invertebrates. He speculates that those invertebrates may prey on the starfish when they are very small. The Great Barrier Reef Marine Park was re-zoned in mid-2004, increasing the no-take zones from ...

Pollination habits of endangered Texas rice revealed to help preservation

... will take care of Texas wild-rice if we just let them know about it." It doesn't hurt, she added, that Texas wild-rice serves as home for tiny invertebrates that have nasty feeding habits. "People who swim through Texas wild-rice risk picking up these aquatic hitchhikers and may end up with itchy ...

Ancient marine invertebrate diversity less explosive than thought

... Database, the researchers report, in today's (July 4) issue of Science, a new diversity curve that shows that most of the early spread of invertebrates took place well before the Late Cretaceous, and that the net increase through the period since, is proportionately small relative to the 65 million ...

Species have come and gone at different rates than previously believed

... and a paleobiology database, the researchers report in the July 4 issue of Science, a new diversity curve that shows that most of the early spread of invertebrates took place well before the Late Cretaceous, and that the net increase through the period since, is proportionately small relative to the 65 million ...

Climate change causing significant shift in composition of coastal fish communities

... at the University of Rhode Island's Graduate School of Oceanography, the fish community has shifted progressively from vertebrate species (fish) to invertebrates (lobsters, crabs and squid) and from benthic or demersal species those that feed on the bottom to pelagic species that feed higher in the water ...

Worm-like marine animal providing

... innate immune genes have been independently duplicated many times over. It may be that with a second line of defense, vertebrates, compared with invertebrates like amphioxus, are less reliant on innate immunity to ward off infection. The neural crest cells of vertebrates are an excellent example of how ...

Persistent man-made chemical pollutants found in deep-sea octopods and squids

... in whales and dolphins. It has been regulated worldwide since the late 1980s, but has been a concern because of its extreme toxicity to marine invertebrates in the coastal environment. Other chemical contaminants found in the specimens include polycyclic aromatic hydrocarbons (PAHs), found in all the ...

Substance in red wine found to keep hearts young

... comparable to caloric restriction, the hallmark for life extension." Previous research has shown that high doses of resveratrol extend life in invertebrates and prevent early death in mice given a high-fat diet. The new study extends those findings, showing that resveratrol in low doses, beginning in ...

Earthworm detectives provide genetic clues for dealing with soil pollution

... in two BioMed Central journals shows that copper contamination has a detrimental effect by interfering with the energy metabolism of the exposed invertebrates and that different pollutants have unique molecular effects, with implications for both monitoring and remediation of toxins. The earthworm ...

Plague of kangaroos threatens one of Australia's last remaining original native grasslands

... But we assume that there is a relationship on individual sites between the extremely high density of kangaroos and species diversity among the invertebrates - especially in times of severe drought." But humans are to blame too. The once vast grasslands used to be the territory of the Aborigines, ...

Insects evolved radically different strategy to smell

... unexpected and controversial finding that may dissolve a dominant ideology in the field. Since 1991, researchers assumed that all vertebrates and invertebrates smell odors by using a complicated biological apparatus much like a Rube Goldberg device. For instance, someone pushing a doorbell would set off a ...

NYU scientists set stage for understanding how color vision is processed

... of the optic lobe cells in these complex circuits and to reach a better understanding of the mechanisms that govern the physiology of vision both in invertebrates and vertebrates, said Desplan. ...

Observing sustainable tourism in Antarctica

... including numerous species of seabirds and iconic penguin and albatross species, as well as seals, whales and countless billions of marine invertebrates that fuel the food chain. The region was afforded special protection under the 1959 Antarctic Treaty and the adoption in 1991 of the Environmental ...

Science, not romance, controls mating at Smithsonian's National Zoo

... females lay their eggs. The National Zoo is one of six zoos in North America to have a specialized breeding program for this amphibian. At the invertebrates exhibit, biologists began studying how to breed Hercules beetles in captivity. These insects are most active and ready to breed after dark, but when ...

Internationally recognized experts presents a complete overview on hydroecology and ecohydrology

... and linkages Methological approaches Detailed case studies and future research needs The book considers a range of organisms (plants, invertebrates and fish), provides a long-term perspective on contemporary and palaeosystems, and emphasizes wider research implications with respect to ...

Animal food allergens unmasked

... 90% identical to at least one human tropomyosin and none have been reported to be allergenic. In contrast, the allergenic tropomyosins are all from invertebrates such as insects, crustaceans and nematodes and at most are only 55% identical to the closest human homologue, said Dr Heimo Breiteneder of the ...

Newfound ancient African megadroughts may have driven the evolution of humans and fishes

... comparable to the southeastern U.S., at that time would have looked like Tucson." One indicator of drought present in the cores were species of invertebrates and plankton that only live in shallow, turbid, algae-rich waters -- a situation very different from the deep, clearwater lake that Malawi is now. ...

October Geology and GSA Today media highlights

... biota of the Eramosa Lagersttte lived in marginally marine to fully marine environments; those in the latter were associated with carbonate-secreting invertebrates such as brachiopods and corals, as well as burrowing organisms. It is the association of exceptionally preserved biota with the more commonly ...
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