Video: Vim li cas Succulent Karoo yog biodiversity hotspot?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Succulent Karoo biome yog ib qho kev lees paub thoob ntiaj teb biodiversity hotspot , thiab yog lub ntiaj teb tsuas arid hotspot . Qhov no biodiversity yog vim loj speciation ntawm arid-adapted biota nyob rau hauv teb rau tej yam kev mob tshwj xeeb thiab siab heterogeneity ib puag ncig.
Ntawm no, vim li cas biodiversity txo qis hauv Succulent Karoo?
Cov Succulent Karoo tau lees paub tias yog ib biodiversity hotspot vim nws abundance ntawm txawv txawv succulent nroj tsuag; ze li 40% yog cov kab mob, txhais tau tias lawv tsis pom nyob qhov twg. Qhov kev cais tawm no txhais tau hais tias txhua yam kev puas tsuaj rau cov yoov cov neeg tuaj yeem txo cov pejxeem ntawm cov nroj tsuag.
Tsis tas li ntawd, Succulent Karoo biome yog dab tsi? Stretching raws ntug dej hiav txwv Atlantic ntawm Africa, los ntawm sab hnub poob South Africa mus rau sab qab teb Namibia, lub Succulent Karoo Biome npog 116 900 square kilometers ntawm suab puam. Nws yog qhov sib txawv tshaj plaws semi-arid ib puag ncig. Kev sib xyaw ua ke ntawm qib siab ntawm endemism thiab biodiversity txhais tau tias biome yog qhov tseem ceeb ntawm kev txuag.
Tsis tas li ntawd, vim li cas New Zealand thiaj li yog qhov chaw biodiversity hotspot?
New Zealand yog lub ntiaj teb lees paub thoob ntiaj teb ' hotspot 'rau biodiversity . Qhov kev ntseeg siab no feem ntau yog tshwm sim los ntawm peb qhov kev sib cais ntev los ntawm lwm thaj av thiab ntau haiv neeg thiab kev nyab xeeb, tso cai rau cov nroj tsuag thiab fauna los tsim. New Zealand tso siab rau kev saib xyuas kev noj qab haus huv ecosystem.
Succulent Karoo nyob qhov twg?
Kev teeb tsa. Cov Succulent Karoo stretches raws ntug dej hiav txwv ntawm sab hnub poob Namibia thiab South Africa lub Northern Cape Province, qhov chaw txias Benguela Tam sim no offshore tsim pos huab heev. Lub ecoregion txuas rau hauv av mus rau hauv toj siab ntawm South Africa lub Western Cape Xeev.
Pom zoo:
Peb yuav faib biodiversity li cas?
Biodiversity suav nrog peb hom tseem ceeb: kev sib txawv hauv hom (genetic diversity), nruab nrab ntawm hom (species diversity) thiab nruab nrab ntawm ecosystems (ecosystem diversity)
Hom keystone cuam tshuam li cas rau biodiversity?
Keystone predators tuaj yeem ua rau muaj kev sib txawv ntawm cov zej zog los ntawm kev tiv thaiv ib hom tsiaj los ua tus tseem ceeb. Lawv tuaj yeem muaj kev cuam tshuam loj heev ntawm kev sib npaug ntawm cov kab mob hauv ib qho chaw ecosystem
Yuav ua li cas yog vim li cas vim li cas lub epigenome hloov?
Kev ua neej nyob thiab ib puag ncig (xws li kev haus luam yeeb, noj zaub mov thiab kab mob sib kis) tuaj yeem ua rau tus neeg muaj kev ntxhov siab uas ua rau muaj tshuaj lom neeg. Cov lus teb no, dhau los, feem ntau ua rau muaj kev hloov pauv hauv epigenome, qee qhov tuaj yeem ua rau puas tsuaj
Puas muaj peev xwm hluav taws xob thiab lub zog muaj peev xwm tib yam Vim li cas lossis vim li cas ho tsis?
Lub zog muaj peev xwm hluav taws xob Ue yog lub zog muaj peev xwm khaws cia thaum cov nqi tawm ntawm qhov sib npaug (xws li lub zog muaj peev xwm gravitational). Lub peev xwm hluav taws xob zoo ib yam, tab sis ib tus nqi, Ueq. Ib qho hluav taws xob muaj peev xwm sib txawv ntawm ob lub ntsiab lus hu ua voltage, V = Ue2q−Ue1q
Dab tsi ua rau biodiversity hotspot?
Lub chaw biodiversity hotspot yog thaj chaw biogeographic uas yog ob qho tib si lub chaw cia khoom tseem ceeb ntawm biodiversity thiab raug hem nrog kev puas tsuaj. Lo lus biodiversity hotspot tshwj xeeb yog hais txog 25 thaj chaw nplua nuj nyob hauv ntiaj teb uas tau ploj yam tsawg kawg 70 feem pua ntawm lawv qhov qub chaw nyob