Video: Ib qho piv txwv ntawm cov kob biogeography yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Island biogeography yog ib txoj kev tshawb fawb los tsim thiab piav qhia txog yam uas cuam tshuam rau hom kev sib txawv ntawm ib lub zej zog tshwj xeeb. Nws yog ib cheeb tsam ntawm thaj chaw nyob ib puag ncig los ntawm thaj chaw tsis tsim nyog rau cov hom ntawm lub kob . Lwm yam piv txwv ntawm "cov kob " suav nrog cov dung pawg, kev ua si khaws cia, toj roob hauv pes, thiab pas dej.
Kuj paub, Island biogeography txoj kev xav piav qhia li cas?
Wilson ntawm Harvard, tsim ib kev xav ntawm " Island biogeography "to piav xws li kev faib tsis sib xws. Lawv npaj siab tias tus naj npawb ntawm hom ntawm ib qho twg kob qhia txog qhov sib npaug ntawm tus nqi ntawm cov hom tshiab colonize nws thiab tus nqi ntawm cov pejxeem ntawm cov hom tsim tau ploj mus.
Tsis tas li ntawd, dab tsi yog ob yam tseem ceeb uas cuam tshuam rau kev nkag tebchaws thiab kev ploj tuag ntawm ib kob? Taw qhia. Lub Equilibrium Model ntawm Island Biogeography (EMIB) hais tias, lwm yam kev sib npaug, thaj chaw thiab thaj chaw cais yog qhov ob yam tseem ceeb kev txiav txim kev ploj mus thiab kev nkag tebchaws cov nqi, uas nyob rau hauv lem tswj cov theem ntawm hom richness uas yog mus txog ntawm ib tug dynamic equilibrium [1], [ 2 ].
Kuj nug, vim li cas cov kob biogeography tseem ceeb?
Ib qho laj thawj cov kob yog tseem ceeb nyob rau hauv ntau cov qauv ntawm ecology, biogeography , thiab kev txuag biology yog qhov ntawd cov kob , raws li qhov tsawg kawg ntawm cov cheeb tsam sib cais, yog cov chaw sim zoo tshaj plaws los kawm txog kev sib raug zoo ntawm cheeb tsam thiab ntau hom tsiaj.
Dab tsi yog peb yam uas cuam tshuam rau cov tsiaj muaj pes tsawg leeg ntawm ib kob?
Cov naj npawb ntawm hom ntawm cov kob tau ntau regressed, cais rau cays thiab continental cov kob , tawm tsam xya qhov txawv txav: latitude, longitude, insular cheeb tsam, insular qhov siab, dej nag, deb mus rau mainland thiab deb rau ze tshaj plaws av loj (txawm mainland los yog lwm yam kob ).
Pom zoo:
Dab tsi yog ib qho piv txwv ntawm cov khoom sib txuas ntawm kev sib npaug?
Kev rho tawm (Tsis yog Commutative) Tsis tas li ntawd, kev faib, kev sib xyaw ntawm cov dej num thiab cov lej sib npaug yog ob qho piv txwv zoo uas tsis yog kev sib txuas
Ib qho piv txwv ntawm ib qho alloy yog dab tsi?
Ib qho piv txwv ntawm cov hlau yog sib xyaw ntawm cov hlau thiab hlau. Ib qho piv txwv ntawm cov hlau yog cov tin hauv qhov sib xyaw ntawm tooj liab thiab tin uas ua rau tooj liab. Lub alloy yog ib qho fusion ntawm ob lossis ntau dua hlau lossis cov hlau uas tsis yog hlau. Ib qho piv txwv ntawm cov hlau yog tooj dag, uas yog tsim los ntawm tooj liab thiab zinc
Cov kev tshawb xav ntawm cov kob biogeography tau sim li cas?
Wilson ntawm Harvard, tau tsim ib txoj kev xav ntawm 'kob biogeography' los piav txog cov kev faib tsis sib xws. Lawv tau npaj siab tias tus naj npawb ntawm cov tsiaj ntawm ib lub koog pov txwv qhia qhov sib npaug ntawm tus nqi ntawm cov tsiaj tshiab nyob rau hauv nws thiab tus nqi ntawm cov pejxeem ntawm cov tsiaj uas tsim los tuag
Thaum lub ntim ntawm ib qho piv txwv ntawm cov pa roj yog txo lub siab ntawm cov qauv ntawm cov pa roj?
Kev txo qis Cov pa roj sib xyaw txoj cai hais tias lub siab ntawm cov pa roj yog inversely cuam tshuam nrog lub ntim thiab ncaj qha ntsig txog qhov kub thiab txias. Yog tias qhov kub thiab txias yog nyob tas li, qhov sib npaug raug txo rau Boyle txoj cai. Yog li ntawd, yog tias koj txo qhov siab ntawm cov roj av tas li, nws qhov ntim yuav nce ntxiv
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms