Results 21 to 30 of about 6,961,451 (296)
On the Inverse Problem for a Size-Structured Population Model [PDF]
, 2006 We consider a size-structured model for cell division and address the question of determining the division (birth) rate from the measured stable size distribution of the population.
Perthame, Benoit, Zubelli, Jorge P.
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Population ecology of the spectacled caiman (Caiman crocodilus) in the Apaporis River middle basin
Ecosphere, 2021 Population ecology studies on spectacled caimans (Caiman crocodilus) in Colombia have been few and far between with many covering short periods and defining population parameters based on relative indices (i.e., individuals/km).
Sergio A. Balaguera‐Reina +2 more
doaj +1 more source
Mutation and population size [PDF]
Heredity, 1973 A combination of ecological and genetic models makes it possible to predict the effects of mutation on population size. Although all disadvantageous mutants produce the same genetic load (as conventionally defined) different types of mutants may have different effects upon the numerical equilibrium.
openaire +2 more sources
Evidence for variation in the effective population size of animal mitochondrial DNA [PDF]
, 2009 Background: It has recently been shown that levels of diversity in mitochondrial DNA are remarkably constant across animals of diverse census population sizes and ecologies, which has led to the suggestion that the effective population of mitochondrial ...
A Eyre-Walker +28 more
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Size and trends of the bowhead whale, beluga and narwhal stocks wintering off West Greenland
NAMMCO Scientific Publications, 2002 To assess the size and trends of the abundance of the bowhead whale (Balaena mysticetus), the beluga, or white whale (Delphinapterus leucas), and the narwhal (Monodon monoceros) visual aerial surveys were conducted in West Greenland in March 1998 and ...
MP Heide-Jørgensen, Mario Acquarone
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Botanica, 2022 Neotinea ustulata (Orchidaceae) is a rapidly declining species throughout much of its range and is classified as critically endangered in Lithuania. Most of the historical occurrences of the species were concentrated in northwestern Lithuania, while the ...
Martynas Kazlauskas +2 more
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Біологічні студіїBackground. Today, the black-headed gull inhabits man-made areas of wastewater treatment facilities (WTF) to comensate for the the reduction of natural aquatic and wetland habitats.
Yulia Mamedova, Angela Chaplygina
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Animals, 2023 We estimated the current size and dynamics of the wolf population in Tuscany and investigated the trends and demographic drivers of population changes. Estimates were obtained by two different approaches: (i) mixed-technique field monitoring (from 2014 ...
Enrico Merli +13 more
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Population size bias in Diffusion Monte Carlo
, 2012 The size of the population of random walkers required to obtain converged estimates in DMC increases dramatically with system size. We illustrate this by comparing ground state energies of small clusters of parahydrogen (up to 48 molecules) computed by ...
Boninsegni, Massimo, Moroni, Saverio
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A new model for competition between many languages [PDF]
, 2006 Time evolutions of number of cities, population of cities, world population, and size distribution of present languages are studied in terms of a new model, where population of each city increases by a random rate and decreases by a random division ...
Tuncay, Caglar
core +2 more sources