نتایج جستجو برای: biological competition

تعداد نتایج: 545385  

2002
MATTHEW J. GRIESHOP ROBERT M. NOWIERSKI

Seedling recruitment of Dalmatian toadflax, (Linaria genistifolia ssp. dalmatica (L.) Maire and Petitmengin (Scrophulariaceae)), was examined in a 2-year field study in Montana using overseeding and plant/insect exclusion methods, to determine whether it was more limited by seed availability or interspecific plant competition. Overseeding test plots with toadflax seed had no effect on seedling ...

2016
Lisa Müller Erich Müller Carolin Hildebrandt Christian Raschner

The relative age effect (RAE) is a well-documented phenomenon in youth sports. This effect exists when the relative age quarter distribution of selected athletes shows a biased distribution with an over-representation of relatively older athletes. In alpine ski racing, it exists in all age categories (national youth levels up to World Cup). Studies so far could demonstrate that selected ski rac...

2018
Alycia C R Lackey Michael D Martin Robin M Tinghitella

Male competition and speciation: expanding our framework for speciation by sexual selection Alycia C. R. LACKEY*, Michael D. MARTIN, and Robin M. TINGHITELLA Department of Biological Sciences, Binghamton University, Binghamton, NY 13902, USA, Department of Biology, Oxford College of Emory University, Oxford, GA 30054, USA, and Department of Biological Sciences, University of Denver, Denver, CO ...

2007
ROBERT R. DUNN CHARLES R. PARKER NATHAN J. SANDERS

In this study, we use 12 months of data from 11 ant assemblages to test whether seasonal variation in ant diversity is governed by either the structuring influences of interspecific competition or environmental conditions. Because the importance of competition might vary along environmental gradients, we also test whether the signature of competition depends on elevation. We find little evidenc...

Journal: :FEMS microbiology ecology 2000
Boddy

Competition is the most common type of interaction occurring between wood-decaying higher fungi. Since competition for nutrients in organic resources is effectively brought about by competition for space, the common division into interference and exploitation competition is not very appropriate. Fungal competition can be divided into primary resource capture (obtaining uncolonized resources) an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم انسانی 1393

this thesis aims at putting together two of the vestest areas of study there is in humanities: bioethics and literature. the two novels in question, oryx and crake and the year of the flood, are considered as some of the most succssful examples of spculative fiction. in these novels the biological and environmental issues raised as looked at from a bioethics point of view.

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