Transcript Niches and Community Interaction
Niches and Community Interaction
Isabelle Liu Daniel Liu Michael Jiang
The Niche
Examples Online Definition: The position or function of an organism in a community of plants and animals.
In this picture, it shows the function of a tree in our life. for example, the tree takes some of the CO2 and makes it into O2 while some carbon is also stored in the soil Textbook Definition: Describes not only what an organism does, but also how it interacts with biotic and abiotic factors in the
Niche (Continued)
Toleranc survive and reproduce under certain environmental circumstances Example: Mosquitoes Summer Winter Resources Definition: The necessity of life for any animal, such as nutrients.
Examples: Mosquitoes need blood to survive. Otherwise, they die.
Niche (Continued)
Biological aspects of Niche Definition: The biotic factors it requires for survival.
Example: Mosquitoes need our blood to survive, so they stab us with their needles.
Competition
Happens when organisms attempt to use the same limited resources.
examples: food, shelter, mates, etc.
• Two kinds of Competition: Intraspecific between two or more species.
Interspecific-
The Competitive Exclusion Principle
• Also known as Gause's Law of Competitive Exclusion • This principle states: “Intraspecific Competition always ends with a winner and loser, and the loser usually dies out. Hence no two species can occupy the same niche in the same habitat at
Mutualism
Interaction between two species in which both of them benefit.
Parasitism
Interaction between two species in which one of them benefits and the other is harmed.
Commensalis m
species in which one benefits and the other is not affected.
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Sources
http://www.google.com.hk/imgres?q=aphid&um=1&hl=zh CN&newwindow=1&safe=strict&sa=N&tbm=isch&tbnid=uIXSvL9OzAQYcM:&imgrefurl=http://ipm.ncsu.edu/ cotton/insectcorner/photos/aphid.htm&docid=mfD vpPJJRPQlM&w=666&h=513&ei=Wvt6TszzGMaZiAe1uMAX&zoom=1&iact=hc&vpx=298&vpy=248&dur=4 628&hovh=197&hovw=256&tx=187&ty=75&page=5&tbnh=139&tbnw=173&start=66&ndsp=17&ved=1t:429, r:12,s:66&biw=1220&bih=673 http://images.search.yahoo.com/images/view;_ylt=A2KJke7k.3pOvHIAs8iJzbkF;_ylu=X3oDMTBlMTQ4cGx yBHNlYwNzcgRzbGsDaW1n?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3 Fp%3Darmy%2Bant%26n%3D30%26ei%3Dutf 8%26y%3DSearch%2BImages%26b%3D1%26tab%3Dorganic&w=751&h=500&imgurl=www.bioquip.com% 2Fprod_images%2F3544-019-Moffett-Army-ant bite.jpg&rurl=http%3A%2F%2Fwww.bioquip.com%2Fhtml%2Fview_prodpics.asp%3FCatalogNum%3D354 4%26amp%3BP%3D19&size=36.2+KB&name=Catalog+%233544%3A+Moffett-Army-ant bite+%28click+to+close%29&p=army+ant&oid=26d6e44483a9dfec44c9bebebd505d3e&fr2=&fr=&tt=Catalo g+%233544%3A+Moffett-Army-ant bite+%28click+to+close%29&b=0&ni=30&no=5&tab=organic&sigr=1263aid6m&sigb=1357vimku&sigi=11u1 3vtu7&.crumb=fh8VZ1s.Zrw
http://images.search.yahoo.com/images/view;_ylt=A2KJke4jOnlO0H0A4oqJzbkF;_ylu=X3oDMTBlMTQ4cG xyBHNlYwNzcgRzbGsDaW1n?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages% 3Fp%3Dparasite%26ei%3DUTF-8%26fr%3Dyfp-t 701%26b%3D57%26tab%3Dorganic&w=1800&h=2224&imgurl=www.newswise.com%2Fimages%2Fuploa ds%2F2009%2F07%2F14%2Ffullsize%2FSchistosome_Parasite_SEM.jpg&rurl=http%3A%2F%2Fwww.ne
wswise.com%2Farticles%2Fteam-sequences-genome-of-parasite-that-affects-200-million worldwide&size=1.4+KB&name=Team+Sequences+Genome+of+Parasite+that+Affects+200+Million+World wide&p=parasite&oid=12fb178112ff76841d9114aef047fece&fr2=&fr=yfp-t 701&tt=Team+Sequences+Genome+of+Parasite+that+Affects+200+Million+Worldwide&b=57&ni=28&no=8 3&tab=organic&sigr=135msvtd1&sigb=12um1ef2c&sigi=12gjglgit&.crumb=XwCVB9JxyrE http://images.search.yahoo.com/images/view;_ylt=A2KJke4jOnlO0H0A4oqJzbkF;_ylu=X3oDMTBlMTQ4cGxyBHNlYwNzcgRzbG sDaW1n?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3Fp%3Dparasite%26ei%3DUTF 8%26fr%3Dyfp-t 701%26b%3D57%26tab%3Dorganic&w=1800&h=2224&imgurl=www.newswise.com%2Fimages%2Fuploads%2F2009%2F07%2 F14%2Ffullsize%2FSchistosome_Parasite_SEM.jpg&rurl=http%3A%2F%2Fwww.newswise.com%2Farticles%2Fteam sequences-genome-of-parasite-that-affects-200-million worldwide&size=1.4+KB&name=Team+Sequences+Genome+of+Parasite+that+Affects+200+Million+Worldwide&p=parasite&oid =12fb178112ff76841d9114aef047fece&fr2=&fr=yfp-t 701&tt=Team+Sequences+Genome+of+Parasite+that+Affects+200+Million+Worldwide&b=57&ni=28&no=83&tab=organic&sigr= 135msvtd1&sigb=12um1ef2c&sigi=12gjglgit&.crumb=XwCVB9JxyrE
More Sources
• • • • • • http://images.search.yahoo.com/images/view;_ylt=A2KJke6tOnlOJn4AaKmJzbkF;_ylu=X3oDMTBlMTQ4cG xyBHNlYwNzcgRzbGsDaW1n?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages% 3Fp%3Dtapeworm%26fr%3Dyfp-t 701%26fr2%3Dxpl%26b%3D141%26tab%3Dorganic&w=480&h=239&imgurl=www.wormsandgermsblog.co
m%2FDipylidium.JPG&rurl=http%3A%2F%2Fwww.wormsandgermsblog.com%2F2008%2F07%2Farticles %2Fanimals%2Fcats%2Ftapeworms-in-dogs-and cats%2F&size=16.7+KB&name=Tapeworms+in+dogs+and+cats+%3A+Worms+and+Germs+Blog&p=tape worm&oid=71f3886315f256f4d2b32d1b4e82c2f6&fr2=xpl&fr=yfp-t 701&tt=Tapeworms+in+dogs+and+cats+%3A+Worms+and+Germs+Blog&b=141&ni=28&no=146&tab=orga nic&sigr=12qcirjov&sigb=12u4l50qe&sigi=118jnc8jh&.crumb=XwCVB9JxyrE http://images.search.yahoo.com/images/view;_ylt=A2KJkK4MP3lOfWAAWvqJzbkF;_ylu=X3oDMTBlMTQ4c GxyBHNlYwNzcgRzbGsDaW1n?back=http%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages %3Fp%3Dacacia%26n%3D30%26ei%3Dutf 8%26y%3DSearch%26fr%3Dsfp%26b%3D1%26tab%3Dorganic&w=1024&h=768&imgurl=ecolibrary.org%2 Fimages%2Ffull_image%2FAnt_w_bullhorn_acacia_thorn_DP162.jpg&rurl=http%3A%2F%2Fecolibrary.org
%2Fpage%2FDP162&size=73.4+KB&name=Bullhorn+acacia+and+ant+mutualism%3A+thorn+and+extra floral+nectary+...&p=acacia&oid=7e777b93a83e688741535a22240f4226&fr2=&fr=sfp&tt=Bullhorn+acacia+ and+ant+mutualism%3A+thorn+and+extra floral+nectary+...&b=0&ni=28&no=14&tab=organic&sigr=110k3gaa0&sigb=133d3upvk&sigi=126qesm4a&.c
rumb=XwCVB9JxyrE http://en.wikipedia.org/wiki/Symbiosis http://en.wikipedia.org/wiki/Mutualism_(biology ) http://en.wikipedia.org/wiki/Parasitism http://en.wikipedia.org/wiki/Commensalism
More Sources • •
http://www.biology-online.org/dictionary/ http://www.cartoonstock.com/
• •
www.biologycorner.com
• Biology Text Book
www.dictionary.com