【Native Speaker每日综合训练—43系列】【43-02】科技 Mutualism

jokerking · 发表于 2014-10-16 09:38:45

spk :  reindeer's spit can prevent toxin form fungi which lived on plant. but this toxin production from fungi reduced when the drool is dribbled over plants. The specific secret of the spit is still unsolved, but one thing for sure : salivary secretions of large mammals are more important than previously realized.
spd :  2.05  1.57  1.02  1.40  1.33
ob  :  5.36

AXIXI · 发表于 2014-10-16 13:09:35

[Time2--2:42 ] Introduced mutualism---interactions with two organisms of different species exist and each individual benefits. Mutualism plays a key part in ecology.
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[Time3--2:46 ] Acacia and some species of ants are mutualism.
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[Time4-- 1:45] Along with the decreasing of the herbivores, one of the only species o acacia that relies on ants has been disappearing and other types of acacia have proliferated.
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[Time5--2:07 ] Fungi is a very efficient way to increase agricultural productivity.
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[Time6--1:53 ] The fungus and virus conveyed heat to crops and helps boost productivity and fend off the effects of climate change.
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[Obstacle--6:52 ] A specie of spiders, which does plant-based diet, can live in close proximity like other species of social spiders.

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黑糖话梅糖 · 发表于 2014-10-16 18:14:42

speaker:
reindeer spit can prevent the production of the plant toxins; the compound in reindeer spit.
time2--3:26
the definition of mutualism; contrast with interspecific competition; an example of mutualism; mutualism role in the ecology; measuring the benefit is not straightforward and reasons.
time3-4--5:29
the interdependence between the a--tree and several ant species; TP experiment; the result applies to only species; providing example for the disappearance and extinction of animals;
time5-6--5:07
fungi, bacteria and viruses could be an exciting alternative to increase agricultural productivity. L experiment ; R experiment; drawbacks.
obstacle--8:04
B spiders unusual feeding habit of eating plants; scientist observation; the interactive effect of the habit.
科技文真的是读到想哭

Iszy · 发表于 2014-10-16 20:30:12

Time2 2.33s Mutualism is a type of symbosis.
Time3 2.41s A ironic interdependence between ants and herbivores.
Time4 1.38s A decline or even extinction in herbivores could result in bad influence in certain types of ants.
Time5 2.39s Microbes do good to agriculture development.
Time6 2.14s Certain types of microbes help crops tolerant towards heat, drought, salt and heavy mental and so on, boosting yeilds. However, this technique also has drawbacks, for instance, toxic grass makes livestock sick.

zhl2007 · 发表于 2014-10-17 09:28:53

打卡打卡
SPEED：
02:43 the definition of mutualistic relationship and examples about the concept
time3,4 03:47 the research and experiment towards the relationship of large mammals, ants and trees. the result show that large mammals such as elephant actually plays an important role in the overall system and they should be protected from over-hunting
02:44 fungi can help the growth of plant as well as to overcome excessive heat
01:54 the fungi has more effects than expected if it follows "the right microbe from the right habitat". however, fungi also has its own drawbacks and more experiment should be carried out
OBSTACLE:
07:14 the finding of a kind of spider which feed on vegetable instead of insects. they live together without any corporation and further research is carrying on

泡泡跑跑 · 发表于 2014-10-20 00:48:12

T2  02:01.7  Explain what is mutualism and describe the advantage and importance of mutualism.
T3  01:51.3 Large herbivores like elephant and giraffe can let acacia trees produce little ant houses in hollow thorns and these ants can help the plants grow well.
T4  01:01.5 Large herbivores are tremendously important players in this ecosystem, not just because of the direct effects they have upon plants, but also because of the myriad effects they exert on smaller, less conspicuous components of biodiversity.
T5  01:51.5  Scientists apply fungi to plants in order to find a new way to boost production.
T6  01:45.2  The new way is effective but there are still some risks.
Obstacle  05:21.3  Scientists find a unusual spider feeds on plant and they are trying to find the mutually beneficial arrangement of spider and ant. Spiders eat plant and ant larvae that would provide microbes to help digest plant

铁板神猴 · 发表于 2014-10-22 18:49:56

Speaker

reindeer’s saliva can smack down the production of a plant toxin.

in order to prevent the plants from being eaten, a fungus on the plant could produce toxin.

but if reindeer or moose have spit saliva on the plant, the toxin production reduces.

scientists don’t know why, but they know one thing for sure “salivary secretions can be more important than previously thought."

Speed

2’08’'
1’53’'
1’08’'
2’05’'
1’46''

Obstacle

spiders feed on plants
very few, one of them B k,
tree, antes, however spider against
get noticed until the feeding habits was found
Meehan, spiders eat vegetable rather than ants
digestion, less nutrient, why?
might start from eating larvae that feeds on plant body
still traditional hunting behavior
social to individual, still in group
go to source instead of the resource of ant larvae
really important!

cyndichiang · 发表于 2014-10-23 06:56:51

Speaker
Animals eat toxic plant in order to prevent plants from producing toxic chemicals
Fungus interarct with animals so that animals are able to eat plant without losing limbs
The discovery is unsolved, but we know the salivary(唾液的) secretion is more important than thought

Obstacle: 5'01''
Scientists found that spiders may feed on plants instead of live prey.
This behavior researched by may reflect cooperation and interaction with neighbors.

baydeu · 发表于 2014-10-23 08:42:35

T2 2'51'' what is mutualism- a type of symbiosis i.e. bacteria and U; play key part in ecology & improve bio diversity; closeness to measure degree of M
T3 3'37'' a kind of tree M with Ant A, fail to choose right Ant, Ant B aragon, cause themselves decline
T4 1'33'' herbviroes important to this system, without herbiv the tree diminish and so do ants
T5 2'31'' fungi's benefit *plant recruit microbes* 1.grass 2. tomato can grow in hotter place
T6 2‘15’‘ right F from right place, drawbacks
T7 8‘28’‘ Vege spider BK, Mutualism in ant and tree; reason BK eat B, nectar and larva of tree,
V cause changes in interaction with other species of spiders; BK's impact on tree and ant

kwa2yi · 发表于 2014-10-23 09:50:40

掌管 6 00:05:15.63 00:14:40.19
掌管 5 00:01:06.35 00:09:24.55
掌管 4 00:02:35.85 00:08:18.20
掌管 3 00:00:54.72 00:05:42.34
掌管 2 00:02:27.28 00:04:47.62
掌管 1 00:02:20.33 00:02:20.33
speaker:
radia mooves
animal surviver
eat plants
avoid fate
mutually benificial rela
egovally
loss of lims
signal toxic

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