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ﺩﻭﻡ ﺟﻠﺴﻪ ﺳﻮﺍﻻﺕ ﮐﺮﻭﺗﻮﻭﻳﻨﺎ ﺗﻮﺟﻴﻪ ﭼﮕﻮﻧﻪ ﺧﺎﮐﻬﺎ ﺩﺭ ﺁﻧﺮﺍ ﻭﺟﻮﺩ ؟ ﭼﻴﺴﺖ ﺍﻳﻦ ؟ ﮐﻨﻴﺪ ﭘﺪﻳﺪﻩ ﮐﺪﺍﻡ ﺑﺎ ﺍﺯ ﻳﮏ ﻣﺮﺗﺒﻂ ﺧﺎﮎ ﺩﻳﮕﺮ ﻋﻠﻮﻡ ﺩﺍﻧﻴﺪ؟ ﮐﺪﺍﻡ ﻭﻳﮋﮔ ﻗﺮﺍﺭ ﺗﺎﺛﻴﺮ ﺗﺤﺖ ﺭﺍ ﺷﻤﺎ ﺧﺎﮎ ﺩﺭ ﺁﻧﻬﺎ ﻧﻘﺶ ﮐﺪﺍﻡ ﻫﺎ ﮐﻨﻪ ﺩﻫﺪ؟ ﻣﻲ ﮐﺪﺍﻡ ﻭﻳﮋﮔ ﻣﺘﻌﺠﺐ ﺭﺍ ﺷﻤﺎ ﺧﺎﮎ ﺩﺭ ﺁﻧﻬﺎ ﻧﻘﺶ ﮐﺪﺍﻡ ﻋﻨﮑﺒﻮﺗﻬﺎ ﮐﻨﺪ؟ ﻣﻲ ﺭﻭ ﺑﺮ ﺗﺎﺛﻴﺮ ﻧﻈﺮ ﺍﺯ ﺭﺍ ﺣﺸﺮﻩ ﮐﺪﺍﻡBioturbation ﻣﻮﺛﺮ ؟ ﺩﺍﻧﻴﺪ
Transcript
Page 1: Bioturbation - Ferdowsi University of Mashhadlakzian.profcms.um.ac.ir/imagesm/463/stories/biology_note/2.pdf · ﻥﻻﺎﺑ ﻲﺑ ﻪﺳ ﻭ ﮏﺧﺎﺷ ﻭﺩ ،ﻢﮑﺷ ﻭ

سواالت جلسه دوم

يک از با کدامپديده کنيد ؟ اين ي چيست ؟ وجود آنرا در خاکها چگونه توجيه مکروتووينا دانيد؟يعلوم ديگر خاک مرتبط م

مي دهد؟ کنه ها و کدام نقش آنها در خاک شما را تحت تاثير قرار ي ويژگکدام

مي کند؟ عنکبوتها و کدام نقش آنها در خاک شما را متعجب ي ويژگکدام

دانيد ؟ ي م موثرBioturbation يکدام حشره را از نظر تاثير بر رو

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Macrofuna

Molluscus ( Snails and Slugs) نرم تنان

Vertebrates (Gophers, Mice, Snakes) مهره داران

Anthropods (Spiders, Beetles, Ants, Centipodes,.....)

Annelids (Earthworm)

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Arthropoda

قالب داران شاخکداران شاخکبدون جفت پا۴

Chelicarata Antenata

Insecta Myripoda Crustacea

Apterygota PetrygotaHomoptera

Lepidoptera

Isoptera

Diptera

Hymenoptera

Coleoptera

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انيبند پا

ن ماکروفون خاکيغالبتر

وماس ي بدرصد ۱۰کمتر از

استگونه متعلق به آنها ۱۲۰۰۰۰۰ گونه از ۱۰۰۰۰۰۰

از نظر تعداد و تنوع بزرگترين گروه

شاخکدارانسردارانيکل

انيعنکبوتکنه ها

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Acarinaکنه ها

ن جانوران خاکيفراوانتر

مزوفون

ي سرشار از مواد آليدر خاکها

وماس کم چون کوچک هستند يب

هم هستندي شکاريعمدتا ساپروفيت ول

استينقش آنها در خرد کردن مواد آل

يکمک به انتشار مواد آل

شدن نقش دارنديهوموس

Biological balance دارنديه مواد آلي در تجزينقش کند

: چهار دسته اند

Prostigmataي شکار

Mesotigmataيشکار

Cryptostigmataنيفراوانتر

Astigmata ديگر تغذيهي از نماتد ها و کنه هايانواع شکار

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: انسان تو بدان که ياتالش منظم پاداش چند برابر دارد

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Characteristics :

Spiders are one of the most easily recognisable orders

among the invertebrates and differ from other

arachnids by having abdominal glands that produce

silk. Spiders come in a variety of shapes, colours and

sizes. They can range in size fromless than 0.5

millimetres up to a huge size with a 20 centimetre leg-

span.

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Araneidea عنکبوتيان

هستند ياين جانوران شکار

کنند ي کوچک تغِذه مياز حشرات ، هزار پايان ، نرم تنان و کرمها

ي سرشار از مواد آليدر خاکها

.در تنظيم فون خاک نقش دارند

. در خاک ندارند يادير زيتاث

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All

thin

gs c

ome

to th

ose

who

wai

t

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انيبند پا

Apterigota

شاخکدارانسردارانيکل

Insecta Myripoda Crustacea

بي باالن بالداران

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بي باالن

سر وسينه و شکم، دو شاخک و سه .پادمان جزء حشرات بي بال هستند، آنها را دم فنريان مي گويند. جزء مزوفون هستند. جفت پا، زائده زير بدن حالت جهشي دارد

در خاکهاي گرم و مرطوب و سرشار از مواد آلي فراوانند

اکثرا ساپروفيت هستند

مايکوفاژ

.بي نقش دارند در خرد کردن و ريز کردن مواد و آماده کردن مواد براي تجزيه ميکرو

امکان تجزيه کيتين بدليل وجود باکتري باسيلوس در دستگاه گوارش

مصرف قارچهاي فوزاريم

طعمه براي جانوران شکارچي

)کنه ها ، پادمان و حشرات ريز( جزء ميکرو ارتروپدا

ند راسته هاي بي شاخکان، دم چنگاالن، تيزانورا جزء حشرات بي بال هست

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Appearances are deceptive

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شاخکداران

سخت پوستانهزارپايانحشرات

باالداران بي باالن

موريانه ها راست باالن

دو باالن

بال غشائيان

سخت باالن

بال پولکداران

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انه هايفعاليت مور

گونه ٢٠٠٠

دي سفيا مورچه هايانه ها ي مور

دارند ي اجتماعي زندگ

شوند يافت ميا ي دني اراض۳/۲ در

موريانه است ۱۰۰۰۰۰۰ در هر النه – آورند ين را به سطح ميري مواد ز

است يميط اقلير رفتار، نوع خاک و شراي شکل النه تحت تاث

دارند ي خاکي از کرمهايشتريت بي مناطق فعالي در بعض

: مهمي خانواده ها

Mastotermitidae - Kalotermitidae - Termopsidae

Hodotermitidae – Rhinotermitidae – Termitidae

. هستنديي راندمان هضم باالي فاقد آنزيم سلوالز هستند ول

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نه چون نقش تو بنمود راست ييآ

نه شکستن خطاستيي، آخود شکن

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AntsHave you ever watched several ants march along the same trail, and wondered how they know where they are going?

Ants leave chemical clues along the ground to mark their way to and from their nest.

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Ants live in the soil and depend on other organisms

for their food and search for food on flowers. Ant

nests can be found in some gardens by lifting rocks

or bricks. Colonies of thousands move soil and

build tunnels. Ants contribute to soil-building and

add organic matter to the soil. They are scavengers,

recycling dead matter.

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Fire Ant NestMississippi

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Food stock-piling chamber. The seed coat has been peeled away.

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خسته رود ي تند و گهيست که گهيرهرو آن ن

وسته رود يرهرو آن است که آهسته و پ

Homoptera

Lepidoptera

Isoptera

Diptera

Hymenoptera

Coleoptera

Pterigota

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Diptera دوباالن

. پترا هستنديپشه ها و مگسها جزء د

را در خاک مرحله بلوغ در خارج خاک يمرحله الرو

ي سرشار از مواد آليدر خاکها

عدد در متر مربع١٠٠٠تا

الرو پشه ها اکثرا ساپروفاژ

وفاژ يالرو مگس ها اکثرا ب

دارند يه مواد آلي نسبت به پادمان و و کنه ها در تجز ينقش کمتر

کننديجاد مي اC/N نسبت ي رو يرات ييالرو حشرات تغ

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The course of true love

never did run smooth

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Homoptera

Lepidoptera

Isoptera

Diptera

Hymenoptera

Coleoptera

Pterigota

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Coleoptera سخت بال پوشان

.برند ي را در خاک بسر ميا تمام زندگي يبخش

.دارنداز ي ني رطوبت کافبه

. کننديجاد مي در خاک اي متعدديسوراخها

نا يکروتوو

.هستند ي از آنها شکارياريبس

کنند يگر استفاده مي اجساد جانوران داز

. نقش دارنديکيولوژي تعادل بدر

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Coleoptera

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Bad news travels fast

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Crickets and cicadas are two other arthropods which inhabit the soil. Crickets are efficient diggers

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Crickets

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Cicadas

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Cicadas spend most of their life in the soil. They live anywhere from four to twenty years as nymphs underground, where they feed on juices from the roots of plants. When ready, cicada nymphs dig to the surface, and climb some sturdy object such as the trunk of a tree. Their skin splits down the back and the winged adult emerges. On a hot summer day, you may have heard the piercing buzz of the male cicada. This is a mating signal to attract females, which are silent.

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Homoptera

Lepidoptera

Isoptera

Diptera

Hymenoptera

Coleoptera

Pterigota

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Bat & moth

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Moth

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The common fruit fly that we all see flitting around overripe bananas seems to be the record holder for the shortest life cycle--it may complete 25 generations in one year, though this occurs only in the tropics or in the laboratory. In contrast, one species of cicada requires 13 years in the South and 17 years in the North for its full life cycle. This is the well-known 17-year locust [cicada], which probably has the longest life cycle of any insect.

Age is a matter of feeling, not of years.

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Antenata

Insecta Myripoda Crustacea

) انيهزار پا(

Diplopoda Chilopoda Symphyla

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Diplopoda

دارند دو جفت پا يبدن طويل و استوانه شکل و هر حلقه دارا

دو جفت پا دارند يبدن طويل و استوانه شکل و هر حلقه دارا

. شودياد مي تعداد آنها زيواني کود حافزودن

. کننديط مقاومت مي محي در مقابل خشکي بستن منافذ جلدبا

دهد ي مي دارد که به ظاهر جانور حالت براقيه چربيک الي بدن آنها غشاء

..هستند ساپروفاژ اکثرا

, آنها به Millipoda, Millipedsو Diplopodaگويندي هم م .

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Millipedes

Belong to a group of arthropods called Diplopods. Millipedes have many body segments.

Most of the body segments bear two pairs of legs. Millipedes coil up tightly when disturbed and some species make a foul smelling fluid.

Millipedes feed on decaying vegetable matter and are often found under stones where there is a lot of moisture.

Female millipedes can lay from 20-300 eggs in the soil. The eggs hatch in a few weeks.

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Chilopoda

. باشديک جفت پا مي يبدن طويل و مسطح و هر حلقه دارا

.پلوپدا است ي آنها کمتر از دي پاهاتعداد

ي است که منتهي قويک جفت پاي ين حلقه بدن بعد از سر داراياول. استيبه غدد سم

. ن جانوران قدرت حفر و فرو رفتن به اعماق را ندارنديا

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Centipedes have a large set of poison claws just below the mouth, which make them efficient meat eaters.

Millipedes are vegetarians. They usually prefer rotting plant material to flesh. Their bodies act like little grinding machines, that break up a great deal of the soil litter layer.

Their eating habits help to increase the organic content of the soil.

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Very little research has been carried out on these wonderful and highly intelligent creatures.

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Symphyla

متر يلي م۸‐۲ن جانوران کوچک و طول آنها يا

ان خاک ين هزار پايفراوانتر

ع است يدامنه انتشار وس

. کنندي مي هم زندگيمتري سانت۱۸۰تا عمق

ه دارندي در تجزينقش محدود

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Symphyla

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يکلبطور

يدر خرد کردن مواد آل

ان ي پا هزار يدر مخلوط کردن مواد آل

شدن يدر هوموس

ه ي و تهو يريکمک به نفوذ پذ

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Crustacea سخت پوستان

هستند ياکثرا آبز

Decapoda و Amphipoda و Copepodaو Isopodaها يخرخاک.در خاک وجود دارند

. وجود دارندي مرطوب و سر شار از مواد آلي در خاکهاعمدتا

.دارند در خاک ياديت زيفعال

. مناطق خشک وجود داردي در خاکهاHemilepistus جنس

دارند بهبود ساختمان خاک نقش در

. نقش دارنديگياهز کردن مواد ي ردر

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Crustaceae

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Copepoda

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Decapoda

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Amphipoda

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All work and no play

makes Jack a dull boy

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ک خا

م مهرانانوج

داران مهره

کرمها

پروتوزوئرها

خزندگان موش کور

ReptilesMoles

خرخاکيها بند پايان

عنکبوتها

کنه ها

ان ي هزارپا

ان ي صد پا

ان ي دم فنر

مورچه ها

موريانه ها

SpiderMites

MillipedsCentipedsSpring tail

AntsTermites

نرم تنان Snailsحلزونها

Slugs رابها

Woodlice


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