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  • cluster
  • The cluster of sites selected in the Kennet and Lambourn valleys supports one of the most extensive known populations of Desmoulin s whorl snail Vertigo moulinsiana in the UK and is one of two sites representing the species in the south-western part of its range in the important chalk stream habitat. (defra.gov.uk)
  • Cluster analysis showed that the species composition of the two northern peaks, Sentinel and Eastern Buttress, clustered together, separate from a cluster formed by the Outer Horn, Inner Horn and Dragon's Back and from the cluster formed by the southernmost peak, Cathkin. (scielo.org.za)
  • metabolism
  • A comparative approach was taken in this study to evaluate androgen (androstenedione and testosterone) metabolism in three invertebrate species: the gastropod Marisa cornuarietis, the amphipod Hyalella azteca, and the echinoderm Paracentrotus lividus. (csic.es)
  • Organotin compounds, which have been shown to interfere with some aspects of androgen metabolism, had no major effect on testosterone metabolism in any of the three species. (csic.es)
  • Nevertheless, reactive oxygen species (ROS) such as superoxide radicals, hydroxyl radicals, and hydrogen peroxide are generated due to incomplete reduction of molecular oxygen in electron transport chain of mitochondria [ 5 ] and as by-products of other biochemical reactions of metabolism [ 6 ]. (hindawi.com)
  • differences
  • The Israeli team includes Dr. Shanas and research students Idan Shapira and Shacham Mitler, who set out to reveal whether the border - unknown to the species - could affect differences between them and their numbers on either side of the frontier, even though they share identical climate conditions. (phys.org)
  • community
  • It is concluded that trait based ecotoxicology offers a possibly potent tool for predicting sensitivity of benthic invertebrates and the benthic community to sediment-associated contaminants. (frontiersin.org)
  • The macrofouling community consisted of 93 sessile invertebrate species, of which 16 were NIS and five were cryptogenic. (springer.com)
  • The aim of this study was to estimate the social and ecological effects of invertebrate harvesting, i.e. how this exploitation may affect/has affected seagrass variables (biomass, shoot density and canopy height), macrofaunal community structure, the use and importance of these resources for the livelihood of local people over time. (diva-portal.org)
  • coral species
  • To ensure these status reviews are comprehensive, we solicit scientific and commercial information regarding these coral species. (federalregister.gov)
  • Some massive coral species reach sexual maturity when their colonies grow to about 4 inches (10 cm) in diameter, which occurs when they are about 8 years old. (noaa.gov)
  • genetic
  • Using morphological, behavioural, genetic and biochemical observations, taxonomists identify, describe and arrange species into classifications, including those that are new to science. (uib.no)
  • we show that human homologs of invertebrate longevity genes change in their expression levels during aging in human tissue" and "These observations taken together indicate that the broad patterns underlying genetic control of life span in invertebrates is highly relevant to human aging and longevity. (blogspot.com)
  • occurrence
  • The selected sites represent the largest populations and also a range of ecological conditions, incorporating variation in river catchment type as well as representation of the species occurrence in wetlands. (defra.gov.uk)
  • Instead, a paragraph of information has been provided on the occurrence of each of these vagrant species . (defra.gov.uk)
  • study
  • The study showed that women/children harvest invertebrates, and they prefer large seagrass patches, high to medium shoot density, and high seagrass cover. (diva-portal.org)
  • I always advise young students intent on reaching fame to study invertebrates‚Ķuncounted millions remain to be discovered, even in such unlikely places as Manhattan's Central Park (a centipede, in recent years). (thatpetplace.com)
  • change
  • The species was more widespread during the early post-glacial period, but climatic change and destruction of its habitats for agriculture caused a contraction in its range. (defra.gov.uk)
  • Non-metric multi-dimensional scaling results indicated that distance from the Sentinel, the most northerly peak sampled, and mean minimum temperature for July had the strongest correlations with the species data, reflecting change over a straight-line distance of nearly 60 km in a south-easterly direction. (scielo.org.za)
  • seasonal
  • Seasonal changes in antioxidant defences make species able to maintain their correct ROS titre to take various physiological functions such as hibernation, aestivation, migration, and reproduction against changing environmental physical parameters. (hindawi.com)
  • communities
  • The first included abundant ascidians, serpulids, and bryozoans that are structuring components of early communities when favorable conditions exist (i.e. a lack of competitive autochthonous species). (springer.com)
  • After settlement, these species are unable to develop in later-stage communities. (springer.com)
  • Please
  • The following discoveries represent just the tip of the "new species iceberg"‚Ķplease be sure to post your own favorites below. (thatpetplace.com)
  • results
  • In spite of 250 years of taxonomic classification and over 1.2 million* species already catalogued in a central database, our results suggest that some 86% of existing species on Earth and 91% of species in the ocean still await description. (uib.no)
  • The results suggest that the Drakensberg Alpine Centre (DAC), as for plants, is a centre of endemism for invertebrates. (scielo.org.za)
  • data
  • These are very ancient wetlands and several support strong populations of V. moulinsiana as part of a rich assemblage of Red Data Book and Nationally Scarce species in standing water habitat. (defra.gov.uk)
  • support
  • Within the EU, only England and Ireland are considered to support reasonable populations (Drake 1999), despite being close to the northern limit of the species range. (defra.gov.uk)
  • region
  • The series of studies, which have been carried out in cooperation with Jordanian researchers, has examined a variety of reptile, mammal, beetle, spider and ant lion species on either side of the border in the Arava region. (phys.org)
  • The agricultural fields on the Israeli side of the border not only create a gulf between habitats and thereby cause an increase in the number of species in the region, but they also hail one of the most problematic of intruders in the world: the red fox. (phys.org)
  • years
  • In both years non-indigenous species (NIS) recruitment occurred mainly in the quarter July/October in concert with the settlement of pioneer autochthonous species. (springer.com)