Sentences with phrase «taxonomic groups»

Extinction risks were highest in South America, Australia, and New Zealand, and risks did not vary by taxonomic group.

The trends of increase vary among taxonomic groups, which can be attributed to human activities.

** Intransitive competition is common across five major taxonomic groups and is driven by productivity, competitive rank and functional traits — Santiago Soliveres et al. — Journal of Ecology

Solved the problem of clustering short metegnomic sequencing reads into taxonomic groups by leveraging sequenced genomes and phylogenetic triangulation.

As no other taxonomic group contains terrestrial animals in the size classes of the large modern mammals, the functional loss of large mammals can rarely be compensated, leading to permanent ecosystem changes [49].

«The extreme selectivity of the modern extinction threat with respect to body size is best explained by the size bias in human hunting and fishing activities, which often preferentially target the largest animals in the oceans, or the largest animals within their respective taxonomic groupings,» said Payne.

To arrive at well - founded conclusions with respect to the morphology and ecology of the earliest animals, we also need to know more about the environmental conditions that prevailed during the Neoproterozoic, and we need more fossils that can be confidently assigned to specific taxonomic groups,» Wörheide says.

This places cacti among the most threatened taxonomic groups assessed on The IUCN Red List of Threatened Species ™ — more threatened than mammals and birds.

It will provide a glimpse of what taxonomic groups they belong to.

Much in the way seeing the top of a pyramid lets you predict the width of the bottom, Mora extrapolated the total number of species from the higher, more complete taxonomic groups to arrive at his estimate.

Better to start from scratch, with taxonomic groups defined solely by their position on the tree of life rather than by common traits.

It will also estimate the abundance, in tons, of the large taxonomic groups like the crustaceans.

The study shows a significant trend in some of the most researched taxonomic groups, according to Watson.

taxon (plural taxa): Any named taxonomic group, such as the family Felidae, or the genus Homo, or the species Homo sapiens.

Objects at all developmental stages representing all animal and plant taxonomic groups are welcome.

Until now, the IPCC and Thomas et al. studies have been the only global - scale assessments of potential climate change impacts on species that cover multiple taxonomic groups.

Why do individuals from different taxonomic groups and even kingdoms of life interact with each other within a metaorganism in a generally beneficial way and...

Other uses of having a known link between multiple DNA sequencing reads includes studies of structural variations in for instance cancer cells, and when linking functional genes to taxonomic groups in microbial communities.

Teach students about taxonomic groupings (from kingdom to species).

During the hike we will focus on the natural history of the rain forest and its principal taxonomic groups.

The methodology used in this study offers great potential for adaption to additional taxonomic groups and geographical areas, helping to develop effective measures to conserve biodiversity over the coming century.

A 39 slide, full colour photographs, powerpoint on Variation and Classification, including information of all of the major taxonomic groups.

Traditionally, pumps and nets are used for sampling plankton, which require sampling at predetermined stations or towing nets behind a ship, followed by visually sorting collected organisms into taxonomic groups.

These trends likely apply to other taxonomic groups, such as birds, they suspect.

The researchers examined more than 6,000 migratory species by taxonomic group (birds, mammals and fishes) and by environmental system (terrestrial, marine or freshwater).

This very important trait is found in a quite a small number of taxonomic groups, including humans and some primates.

The comment by Myers - Smith and Myers focuses on three main points: (i) the lack of a mechanistic explanation for climate - selection relationships, (ii) the appropriateness of the climate data used in our analysis, and (iii) our focus on estimating climate - selection relationships across (rather than within) taxonomic groups.

The critters represent 15 taxonomic groups, as defined by the scientists in the Sept. 29 issue of Science.

It found that local extinctions occurred in about half of the species surveyed across different habitats and taxonomic groups.

The new definition is the equivalent of pointing to the tips of two twigs on the tree of life, tracing the branches back to where they meet, and describing the taxonomic group as everything in between.

Thus every taxonomic grouping would get a new definition and in some cases even a new name.

Homo sapiens would still belong to a taxonomic group called Mammalia, but Mammalia would no longer be a class.

Proponents of the PhyloCode say the old system, originally developed by Swedish botanist Carolus Linnaeus before Darwin discovered natural selection, is so archaic that every taxonomic grouping needs to be redefined.

‡ Indicates significant differences among the taxonomic groups tested.

Applying these strictures to modern animals is fairly straightforward, since these two characteristics are restricted only to members of the clade Ruminantia, which is the subgroup of even - toed hoofed mammals that includes the cattle, goats, sheep, antelopes, deer, pronghorn, mouse deer, giraffe (Zivotofsky 2000) and okapi (a clade is a taxonomic group whose members share a common ancestry; in this case it does not have a formal associated Linnaean level, such as family or order).

These taxonomic groups were selected as they are relatively well - studied and include species from terrestrial, freshwater and marine biomes.

We focussed on the possible effect on birds as this is the taxonomic group for which cat management is most widely discussed by the national media in the UK.

It covers every geographic range, every taxonomic group.

«All the groups of micro-organisms, all these taxonomic groups, have been shown to grow better in these ocean waters when iron is added.

In contrast, the risk of extinction without climate change was calculated to be less than 1 %, suggesting that climate change will cause a dramatic increase in extinction risk for these taxonomic groups over the next century.