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Wednesday, July 29, 2020 | History

4 edition of Priorities for conserving global species richness and endemism found in the catalog.

Priorities for conserving global species richness and endemism

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  • 7 Currently reading

Published by World Conservation Press in Cambridge, UK .
Written in English

    Subjects:
  • Biological diversity conservation.,
  • Biological diversity.,
  • Ecological heterogeneity.,
  • Environmental policy.

  • Edition Notes

    Statementby the World Conservation Monitoring Centre ; J.O. Caldecott ... [et al.].
    SeriesWCMC biodiversity series ;, no. 3
    ContributionsCaldecott, Julian Oliver., World Conservation Monitoring Centre.
    Classifications
    LC ClassificationsQH75 .P757 1994
    The Physical Object
    Pagination36 p. :
    Number of Pages36
    ID Numbers
    Open LibraryOL917454M
    ISBN 101899628029
    LC Control Number95214305
    OCLC/WorldCa32386951

    Biodiversity investment priorities are a major concern for funding agencies and parties to the Convention on Biodiversity. We present a cost-effectiveness index designed to rank global biodiversity investments addressing weaknesses identified in several existing procedures. First, we explicitly address the issue of cost. Biodiversity conservation can be expensive -- .   Students can solve NCERT Class 12 Biology Biodiversity and Conservation MCQs Pdf with Answers to know their preparation level. Biodiversity and Conservation Class 12 Biology MCQs Pdf. 1. log S = log C + Z log A In the given equation of species-area relationship, the value of regression coefficient for a whole continent, would be (a) (b.

    Kruskal-Wallis test was also done. Thirteen species of anurans belonging to six families and eight genera with high percentage of endemism (%) were documented. High species diversity with more or less even distribution was recorded in MMPL. Site 2, a disturbed montane forest had the highest species richness, diversity, and endemism.   We present a global conservation analysis for an entire “flagship” taxon, land mammals. A combination of rarity, anthropogenic impacts, and political endemism has put about a quarter of terrestrial mammal species, and a larger fraction of their populations, at risk of extinction. A new global database and complementarity analysis for selecting priority areas for conservation .

    The Baja California peninsula is an extraordinarily special place biologically, with many species found nowhere else on earth. Despite our knowledge of its unique species richness and endemism, it has often been challenging for conservation organizations to assemble good scientific data for a landscape view of areas of greatest conservation importance. (D) Priority areas for shark conservation; each area was selected because it contains either the top 5% of species richness or endemism for each of 93 major shark biogeographic units (areas characterized by the presence of a unique set of species as identified by a cluster analysis).


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Priorities for conserving global species richness and endemism Download PDF EPUB FB2

The Convention on Biological Diversity aims to encourage and enable countries to conserve biological diversity, to use its components sustainably and to share benefits equitably.

Species richness and endemism are two key attributes of biodiversity that reflect the complexity and uniqueness of natural ecosystems.

National data on vertebrates and higher plants indicate global Cited by: Title. Priorities for Conserving Global Species Richness and Endemism. WCMC Biodiversity Series 3. Type. Book Material. Published material. Priorities for conserving global species richness and endemism. Cambridge, UK: World Conservation Press, © (OCoLC) Document Type: Book: All Authors / Contributors: Julian Oliver Caldecott; World Conservation Monitoring Centre.

UNEP-WCMC delivers analysis and interpretation of data and information about biodiversity, in engaging and accessible ways. Evolutionary distinctness is used as a metric to determine conservation priorities across all Chondrichthyes, identifying 21 countries with the highest richness, endemism Cited by:   Endemism and species richness are highly relevant to the global prioritization of conservation efforts in which oceanic islands have remained relatively neglected.

When compared to mainland areas, oceanic islands in general are known for their high percentage of endemic species but only moderate levels of species richness, prompting the question of their relative conservation Cited by:   Species richness, endemism, and threat status represent different biodiversity attributes important in identifying biodiversity hotspots and conservation priorities.

Global distributions of areas with the most species overall, most endemic species, and most threatened species are often not by: 8. Traditionally, global priority areas have been identified based on richness, species endemism, and vulnerability (9, 10).

Although these features are important in identifying key biodiversity regions, they focus on only one dimension of biodiversity—taxonomic by:   Six of the nine templates of global conservation priority incorporate irreplaceability—measures of spatial conservation options ().The most common measure of irreplaceability is plant (11–14) or bird endemism, often supported by terrestrial vertebrate endemism overall (11, 13, 14).The logic for this is that greater the number of endemic species Cited by: Different dimensions of biodiversity other than species richness, such as phylogenetic and functional diversity, are increasingly appreciated as critical in conservation planning.

Although China harbors a very rich plant biodiversity, a significant fraction of this diversity is endangered. The maps of avian diversity were used to identify hotspots of species richness, threat and endemism. We initially defined hotspots as the richest % of grid cells with respect to species.

Global Priorities for Marine Biodiversity Conservation Elizabeth R distribution data for nea species to quantify global patterns of species richness and two measures of endemism. Across all species distributions, we calculated species richness and both metrics of endemism within a global grid of 2, km 2 icosahedral Snyder equal area hexagons (n = ,).

We assigned species to hexagons based on the overlap between the raster grid (i.e. species from AquaMaps) or the polygon data (i.e. corals and seabirds) and the hexagon grid. Due to both high number of endemic species and threatened conservation status, the Atlantic Forest is considered a top-priority biodiversity hotspot for plant conservation (Mittermeier et.

weighted endemism (weighted endemism corrected for richness), and performed a randomization test for signifi cantly high endemism. KEY RESULTS: Possible biases in herbarium data do not obscure patterns of high richness and endemism at the spatial resolution studied.

High species richness was sometimes associated with signifi cantly high. Our results clearly identified islands as global centers of endemism richness, a pattern that was consistent across plants and vertebrates (although least pronounced for amphibians) (Figs.

1,2, 2, and Fig. S3).The very high values of endemism richness on islands are especially noteworthy because species richness on islands is generally lower than on. concerning endemism and species richness.

Based on almost unparalleled levels of endemism, species diversity, and human threat, Madagascar is among the most critical global priorities for conservation action, and has been designated one of the world’s most important biodiversity hotspots (Myers et al., ; Groombridge & Jenkins, ).

The risk of extinction for freshwater species was consistently higher than for their terrestrial counterparts. Main conclusions. We demonstrate that broad‐scale patterns of species richness, threatened‐species richness and endemism lack congruence among the six freshwater taxonomic groups examined.

Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): ersitylibrar (external link). species, but similar species richness levels.

Quadrats with no species for a given taxon were assigned an en-demism value of zero. The final data matrix, therefore, consisted of endemism and species richness scores for each taxa for quadrats.

I examined bivariate plots of species richness and en-demism patterns for each taxon to determine. Endemism is the ecological state of a species being native to a single defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere.

For example, the orange-breasted sunbird is exclusively found in the fynbos vegetation zone of southwestern .Three orders [Cypriniformes (n = ), Siluriformes (n = ) and Perciformes (n = )] account for more than 95% of species (%, % and %, respectively).The Cyprinidae (n = ), Nemacheilidae (n = ) and Balitoridae (n = 91) are the three most species‐rich families, with 11 families containing more than 10 genera, the Cyprinidae has more.

In recent decades, many marine populations have experienced major declines in abundance, but we still know little about where management interventions may help protect the highest levels of marine biodiversity. We used modeled spatial distribution data for nea species to quantify global patterns of species richness and two measures of endemism.