Diversity and extinction
Impact of the Late Triassic mass extinction on functional diversity and composition of marine ecosystems
... of diversity change and extinction selectivity in marine ecosystems during the Triassic–Jurassic interval and, in par- ticular, in relation to the ...functional diversity of ecosystems and to study ...
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Estimating taxonomic diversity, extinction rates and speciation rates from fossil data using capture-recapture models
... +i • taxonomic survival probability for the period separating strata i and i+l, B1 • number of new taxa appearing during the period separating strata i and 1+1 and extant at i+l..[r] ...
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Title: A robust goal is needed for species in the Post-2020 Global Biodiversity Framework
... integrity). Extinction of species, the prevention of which is not captured in Goal B, would also clearly result in a loss of genetic diversity (Spielman et ...
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Cascade decode and forward : spatial diversity reuse in sensor networks
... relay extinction probability is a monotonically increasing ...the extinction probability is monotonically decreasing and achieves rapid asymptotic convergence for n < 6 cooperation ...the ...
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... an extinction risk from various anthropogenic factors at the regional and global level, we attempted to explore the diversity of orchid in two community managed forests – Karunabhumi Community Forest at ...
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Evolution of the Late Ordovician Plaesiomyid Brachiopod Lineage in Laurentia
... a diversity peak during the ...the diversity peak during the Katian, the Hirnantian extinction event reduced diversity levels back down to near Early Ordovician levels (some 25 million years ...
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Memorial: the silence of extinction
... of extinction causes concerns about biodiversity as diverse systems, or those with a greater number of species, are more productive and more stable than those with a limited species range (Pimm et ...biological ...
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Genetic Diversity and Dendrogram of Cardiospermum Halicacabum- An In Vitro Study
... Genetic diversity at inter-species level arises due to geographical distribution, climate changes and environmental ...Genetic diversity is the reason for inter- species differences. This diversity ...
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Estimating effective boundaries of population growth in a variable environment
... the extinction risk for many species; see, ...possible extinction and preserve the diversity in nature, we need to understand how temporal en- vironmental changes influence the birth and death rates ...
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A Review of the Climate Change Impacts’ Rates of Change in the Arctic
... The climate change also had very strong impacts on habitat loss, diversity and migration, indicating that climate change can increase significantly extinction rates and modify the ecosys[r] ...
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Chap.15 Biolog. Diversity, Classification
... Macroevolution = dramatic biological change: speciation, extinction, evolution of major new structure.. Speciation : evolution of a new species – May increase biological diversity..[r] ...
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Simulating shifts in taxonomic and functional β diversity of ray finned fishes : probing the Mariana disaster
... Disturbances are analysed mainly at the level of populations (Melo et al., 2011; Ricklefs, 2008), but little is known about how these changes rebound at the level of communities and among communities, as explored here. ...
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The international regulation of extinction: An economic analysis of the forces causing and controlling the extinction of species
... This book is the result of five years of continuous and almost exclusive work and thought on the subject of diversity decline. The complete roster of influential people and programmes would be immense. An ...
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Extinction and the loss of functional diversity
... functional diversity (FD) derived from the quantitative functional traits of species, we show that the loss of functional diversity from six natural assemblages was rapid compared with rates of loss from ...
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Structure and genetic diversity of Anacardium humile (Anacardiaceae): a tropical shrub.
... biological diversity and many habitats and is the source of various natural resources (Cavalcanti and Joly, ...species diversity in general (Myers et ...
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Chromosome variations and diversity of Epidendrum ibaguense Lindl. (Orchidaceae) on the Tepequém's Tepuy, Roraima, Brazil.
... tremendous diversity of Epidendrum are often constrained by the lack of model organisms capable of answering many fundamental questions about plant evolution (Pinheiro and Cozzolino, ...
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Genetic diversity and population structure analysis in Perilla frutescens from Northern areas of China based on simple sequence repeats.
... genetic diversity among Perilla accessions collected in high-latitude and middle-latitude areas of ...genetic diversity in this study is much lower than the values of previous studies by Lee and Kim (2007) ...
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Optical Properties of Thermally Evapourated Lead Selenide Thin Films
... Polycrystalline Lead Selenide Thin Films have been deposited onto glass substrate at 300K by thermal evaporation. The XRD study shows that all samples were polycrystalline having FCC structure. The surface morphology ...
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Genetic diversity and pectinolytic activity of epiphytic yeasts from grape carposphere.
... were grown in cultivation medium containing 10 g/L pectin, 5 g/L yeast extract, 15 g/L agar, 0.12% (w/v) Congo red, and pH 6.2. We observed that the grape carposphere is an environment with a great genetic ...
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Isolation, diversity, and biotechnological potential of rhizo- and endophytic bacteria associated with mangrove plants from Saudi Arabia.
... All the bacteria were further screened for the production of other enzymes, and 2 cellulase positive, 6 lipase positive, 10 protease positive, and 14 amylase positive isolates showed f[r] ...
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