- uislands bc gov law that engoarged farmers to deforeest but scientists saw oppurtunity for controlled experiment
- fragmwntologist
- 50 000 000 square miles are ice free
- half of his land to cropland and pasture cities hopping mals etc
- 3/5 of remaining is forrest
- rest is high mountains tundra or desrt
- im confused about why anthromes are a better clasification than bioms
- one road becomes branches of deforestation
- ring and fling band and release
- for first year popoulation of birds i deforested raea join and bigger
- keeps on dropping (number and variety)
- bc more mpetition for fewer recorces
- keps on going down
- islands tend to be specis poor
- smaller populations ae morevunerable to hance
- smaller popultaion means that there is a bigger effect of mall casue s on the population
- smal populations lead to local extintion
- also corerates with speciation
- many species in relsation with army ants
- the tropics were home to as many as thirty million species of arthropods.
- much more than number of bird or mammal species
- very fast species lost due to habitat rduction
- ther is lag to the process
- hard to know but bc populations remain but will eithersurvive or die iff due to chance
- if we cut the forrests up we wil lose bith flora and fauna
- arnt enough colonie sof ants to support birds when some go into satatr y phase
Ch 10
- bwst tie to take bat po is in winter bc they hibernate
- white stuff all ovr bats
- sae substance was found i oerbat caves
- affected the bats notes
- Geomyces destructans.
- whithout human help hard for spicies to cross pysical oandrays
- darwin found tat ocean wernt as uch as problem as hethoght
- realized that continent smust have shifted
- causes them to be itchy and use up fat storse that would be used for hibernation
- loose moisture through skin
- magority o f ariving species
- if it sucides pouatioon expans rapidly
- only a fe invasive spevies will get tobe sicessul
- invasive spieces either fillor take ver niche
- if eithe rthe ost or parasite wants to survive ne has to adapt to beat the other
- chestnut trees were wipe out when resitenat japanese trees wer brought
- incasesive specis are a hugeee e problem
- we are recraeting pagea like connetions
- we are the moset succeful invasive pseccies
- eventually if this keps upbiodiversity will go away
- white nose eveloved in europe along withother species
- V
CH11
- only 5 specie of rhino still exist
- lonly not pack animals
- rhinos being reescued inot into captviity is simply not working
- used to be large birds that filled niches of derr
- darwin concluded that over hunting caused so,e global extinctions
- 3 pulses of exinction centered at diffrent places worls=dwide
- mans arival is only possible eason
- climate change would lead to a megea fsuna extinction
- large ani,als tend to reproduce lowly
- humans would just have to be avg for an wieot to take place like it did
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- neadathral bones turn up all over te place
- consitint they seeem to be vansihing
- lots of causes ar cited
- thier bad luck was us
- humansarived 40 000 years ago
- when they made thier way nto a reigon nethndls disapeered
- people are aruond 4% neandrathal
- humans breeded with neandrathals, and as a result neadrathalgnes were added to tthe pool
- lots found in neander valley
- they could probably paas for humans
- enzymes destroy dna when die
- depending on country more ir less simiar to nendrathals
- before replacing had ex
- non human apes re clever
- social cues are stronger in humans
- easier to be tght if human
- could b ea s simple a cause as 1 mutation
- must have bred with denisovans also
- one main suspect for earyly himi species
- other primate spoulations ar declining fast
- we will be last great apes
- neaantrathal used tools
- lacke asthetic mutation
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