On r- and k-selection. american naturalist
WebIn ecology, r/K selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring. The focus on either an increased quantity of offspring at the expense of individual parental investment of r-strategists, or on a reduced quantity of offspring with a corresponding increased parental … Web2 de fev. de 2024 · To account for phylogenetic uncertainty in our results, we applied all the analyses of this paper to the tree from Porto et al. (2024) and on two other phylogenies from Nyakatura and Bininda-Emonds (2012) and from Perri et al. (2024).. Time calibration on the tree from Porto et al. (2024) was performed using the “chronopl” function in the ape …
On r- and k-selection. american naturalist
Did you know?
WebAlexander Milles, Melanie Dammhahn, Florian Jeltsch, Ulrike Schlägel, and Volker Grimm Fluctuations in Density-Dependent Selection Drive the Evolution of a Pace-of-Life … WebLong-Term Organic–Inorganic Fertilization Regimes Alter Bacterial and Fungal Communities and Rice Yields in Paddy Soil. Microorganisms are the most abundant and …
WebVol. 109, No. 967 The American Naturalist May-June 1975 r- AND K-SELECTION IN T YPHA S. J. McNAUGHTON Biological Research Laboratories, 130 College Place, … WebThe concepts of r and K selection and b and d selection are discussed and compared. The former pair of concepts will play a central role in the development of new theories in …
WebTitle: On r- and K-Selection Created Date: 20240227221114Z Web21 de jun. de 2024 · A K- reproductive strategy is a set of life history traits that would be selected for when a population reaches highest density. The terminology is taken from a parameter in population growth models, where carrying capacity ( K) is the maximum population size that can be supported by an environment. The opposite strategy is an r …
Webr/K selection theory describes the way a species controls its number of offspring. r-selection species produce many offspring. K-selected species focus on a few. Neither method is in itself superior, and they may occur in the same habitat; e.g., rodents (r-selection) and elephants (K-selection). The theory was popular in the 1970s and 1980s ...
Web11 de abr. de 2024 · During the “decade on restoration,” we must understand how to reliably re-establish native plant populations. When establishing populations through seed addition, practitioners often prioritize obtaining seed from locations geographically near the restoration site (i.e. “local seed sourcing”). flinton grove hullWebIn K-type selection, which occurs in fairly constant or predictable environments, individuals are favoured which have the best competitive abilities. ... American Naturalist 1970 Vol.104 pp.592-597 Abstract : In r-type natural selection, mortality is ... flinton cambria county pennsylvaniaWebIn ecology, r/K selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring. The focus on either an … flint on a mapWebVol. 106, No. 951 The American Naturalist September-October 1972 y AND K SELECTION OR b AND d SELECTION"? ERIC R. PIANKA Department of Zoology, University of Texas, Austin, Texas 78712 Hairston, Tinkle, and Wilbur (1970) recently criticized the concepts of r and K selection as proposed by MacArthur and Wilson … flinton 4 seater sofaWeb11 de abr. de 2024 · 1 Introduction. As a fundamental concept for dynamic component of the climate system, resilience is typically defined as the ability of individual trees, forests or ecosystems to resist sudden disturbances and recover to their initial state (Holling, 1973; Simoniello et al., 2008).Given the large potential of vegetation to take up atmospheric … flinton grove school hullWeb26 de ago. de 2024 · American Naturalist, 107, 651 ... A most interesting theoretical notion pertinent to this problem is r- and K-selection (MacArthur 1962; Cody 1966; MacArthur and Wilson 1967; ... flinton conservation areaWebThe status of the concept of r- and K-selection is discussed and a more restricted usage of the terms is recommended. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 207,820,138 papers from all fields of science. Search ... The American Naturalist. 1972; flinton chair