Journal ArticleDOI
Biometry: the principles and practice of statistics in biological research 2nd edition.
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TLDR
The book aims to instill in students an ability to think through biological research problems in such a way as to grasp the essentials of the experimental or analytical setup to know which types of statistical tests to apply in a given case and to carry out the computations required.Abstract:
This text develops the science of biometry from an elementary introduction up to the advanced methods necessary for biological research and for an understanding of the published literature. This text is aimed primarily at the academic biologist including general zoologists botanists microbiologists geneticists and physiologists in universities research institutes and museums. This book while furnishing ample directions for the analysis of experimental works also stresses the descriptive and analytical statistical study of biological phenomena. It is intended both as a text to accompany a lecture course and as a complete course for self-study. The book aims to instill in students an ability to think through biological research problems in such a way as to grasp the essentials of the experimental or analytical setup to know which types of statistical tests to apply in a given case and to carry out the computations required. Chapters cover biological data data handling descriptive statistics probability estimation and hupothesis testing analysis of variance linear regression correlation multiple and curvilinear regression analysis of frequencies and miscellaneous methods.read more
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Adventitious shoot regeneration from in vitro leaves of several pear cultivars (Pyrus communis L.)
TL;DR: An efficient adventitious shoot regeneration system was developed for pear, using leaves from in vitro proliferating shoots, and ammonium and total nitrogen proved to play an essential role: intermediate NH4+ concentrations were suitable for regeneration.
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Salinity mediates the competitive interactions between invasive mosquitofish and an endangered fish.
TL;DR: This study confirms previous field observations that salinity limits the invasive success of mosquitofish and provides one of the few experimental demonstrations that it may mediate behavioural and competitive interactions between fish species.
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Induced responses in Nicotiana attenuata affect behavior and growth of the specialist herbivore Manduca sexta
TL;DR: It is proposed that induced plants growing in close competition with an uninduced conspecific may offset the fitness costs of these induced responses and perhaps obtain a fitness benefit by motivating herbivores to move to their neighboring competitors.
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Exploring data interaction and nucleotide alignment in a multiple gene analysis of Ips (Coleoptera: Scolytinae).
TL;DR: The possibility of gene tree incongruence in a species-level phylogenetic analysis of the genus Ips was investigated based on mitochondrial 16S rRNA and nuclear elongation factor-1 alpha sequences, and existing cytochrome oxidase I and nonmolecular data sets, resulting in partially discordant most-parsimonious trees.
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West African rivers as biogeographic islands: species richness of fish communities.
TL;DR: Analysis of a larger sample of 39 rivers showed that species richness was positively related to area, and the model derived from the river data underestimated the species richness of a sample of 11 tributaries, compatible with the hypothesis of higher population extinction rates in insular biotopes.