PDF-Ecological niche Jitka Polechov

jitkabiossacuk Center for Theoretical Study Charles University Jilsk. Losos Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology Harvard University 26 Oxford Street Cambridge MA 02138 USA Correspondence Email jlososoebharvardedu Abstract Ecologists are increasingly adopting an evolutiona Townsend Peterson INTRODUCTION The idea of ecological niche conservatism was proposed explicitly and tested quantitatively only 10 years ago Peterson et al 1999 although earlier workers had approached the issue Huntley et al 1989 Ricklefs Latham Some Definitions. An . ecosystem. – all the living things in an area plus the physical or abiotic factors.. A . habitat . – the place or environment in which specific organisms live.. A . species. The scientific study of the distribution and abundance of organisms and the interactions that determine distribution and abundance. Begon. , Harper, Townsend, 2006, Ecology, Blackwell. Lecture outline. Figure2.The95%statisticalparsimonynetworkobtainedforeachlocusfor(A)east Gonzalo Rivas. Spring 2010. Introduction to ENFA. Species are expected to be non-randomly distributed due to ecological and geographical variables.. Copyright: . Basille. et al. 2008. Variables. & Spatial location. Being a presentation by . Chude. . Jideonwo. , Managing Partner of Red Media Africa . at The Future . Enterprise . Support Scheme . -11 June 2015, Lagos, Nigeria. What is a niche?. A ‘niche’ is defined as a job or an activity that is very suitable for someone.. Pete Lammers. lammersp@uwplatt.edu. 2015 Swine Education In-Service. Niche Markets . continue to evolve. 5/26/15 Hormel Foods acquires Applegate. 9/8/15 Perdue acquires . Niman. Ranch. Niche Producers. Being a presentation by . Chude. . Jideonwo. , Managing Partner of Red Media Africa . at The Future . Enterprise . Support Scheme . -11 June 2015, Lagos, Nigeria. What is a niche?. A ‘niche’ is defined as a job or an activity that is very suitable for someone.. cell. Ferrel. . cell. Ferrel. . cell. Hadley cell. Ferrel. cell. Polar cell. The Physical Environment. Image from NASA. Joseph Grinnell. Grinnellian. Niche . . . “Habitat”. “The niche relationships of the California Thrasher”. interactions. between different . organisms. and between organisms and their . environment. or surroundings. Biotic. —. living. factors that influence an ecosystem. Abiotic. —. non-living. factors that influence an ecosystem. 10. 9. 8. 6. 5. 4. 3. 2. 1. Ecological Niche. The role played by an organism in a biological community: its food preferences, its requirements for shelter; its special behaviors, and the timing of its activities (nocturnal or diurnal). . interactions. between different . organisms. and between organisms and their . environment. or surroundings. Biotic. —. living. factors that influence an ecosystem. Abiotic. —. non-living. factors that influence an ecosystem. Ecological Niche models of plague in Uzbekistan : extracting biological information from multiple-species models vs. species specific models to understand hosts and vectors Jason K. Blackburn, PhD,