6 7

نویسنده

  • Jean-François Ponge
چکیده

23 24 Beside biotic interactions, habitat preference and dispersal ability of species play a prominent 25 role in the building of animal species assemblages. However, these traits are usually very poorly 26 documented for soil organisms. A soil transfer experiment was designed to study habitat preference 27 (including land-use and soil preference) and dispersal ability of soil springtail species living in a 28 meadow and in an adjoining deciduous forest. The study was performed in the Morvan Regional 29 Natural Park (Central France), using untreated or defaunated soil blocks, transferred to another land30 use or replaced in their original land-use. Land-use preference was quantified in untreated and 31 untransferred samples from meadow and forest. Dispersal ability was estimated from the time at which 32 species colonized defaunated samples in their own habitat. Soil preference was estimated from the 33 colonization rate of defaunated samples by comparing transferred and untransferred soil blocks. 34 Results showed that in the community, 6% of species were land-use generalists, 30% were soil 35 generalists and 36 % recolonized defaunated soil blocks within a week. Land-use preference, soil 36 preference and dispersal ability were largely independent components of species characteristics. 37 Although our experiment dealt only with small-scale colonization, comparisons between species 38 showed that the dispersal type based on anatomical features (legs, antenna, furcula, visual apparatus) 39 does not allow predicting the dispersal ability of these species. Discrepancies between land-use 40 preference and soil preference suggest that other habitat features must be relevant for Collembola, and 41 that a trade-off exists between eco-physiological and biotic interactions (including food requirements). 42

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Segmenting Reliefs on Triangle Meshes

!8*&,0*/'& !"#$"%& '/# D)<#&? *7#< )$ >'/)6*7 )$<*70/)#7 96/ ,*/,67#7 7*8" '7 ',,&?)$% 4/'$<7 06 ,'82'%)$% '$< <#86/'0)$% ,6/8#&')$E$ 6/<#/ 06 #'7)&? ',,&? /#&)#97 06 3CF :6<#&7; )0 )7 690#$ <#7)/'4&# 06 /#>#/7#G#$%)$##/ ,/#>)6*7&? <#7)%$#< '$< :'$*9'80*/#< /#&)#97HF 78'$$#/7 8'$ %#$#/'0# 0/)'$%&# :#7"#7 9/6: 64I#807 D)0" /#&)#97J "6D#>#/; ,/#>)6*7 :#7" 7#%:#$0'0)6$ D6/2 "'7 $60 86$7)<#/#< 0"# ...

متن کامل

Segmenting Reliefs on Triangle Meshes

!8*&,0*/'& !"#$"%& '/# D)<#&? *7#< )$ >'/)6*7 )$<*70/)#7 96/ ,*/,67#7 7*8" '7 ',,&?)$% 4/'$<7 06 ,'82'%)$% '$< <#86/'0)$% ,6/8#&')$E$ 6/<#/ 06 #'7)&? ',,&? /#&)#97 06 3CF :6<#&7; )0 )7 690#$ <#7)/'4&# 06 /#>#/7#G#$%)$##/ ,/#>)6*7&? <#7)%$#< '$< :'$*9'80*/#< /#&)#97HF 78'$$#/7 8'$ %#$#/'0# 0/)'$%&# :#7"#7 9/6: 64I#807 D)0" /#&)#97J "6D#>#/; ,/#>)6*7 :#7" 7#%:#$0'0)6$ D6/2 "'7 $60 86$7)<#/#< 0"# ...

متن کامل

Precision teaching of the deaf.

MEAN 35.23 34.65 0.19 n.s. REASONING S.D. 10.34 8.89 HEARING MEAN 3.30 3.24 0.15 n.s. DISCRIMINATION S.D. 1.32 1.39 SPEECH MEAN 3.53 2.88 2.36* READING S.D. 1.04 0.60 MANUAL MEAN 2.00 3.53 3.25* COMMUNICATION S.D. 1.49 1.66 RECEPTIVITY * p<.05 ___________________________________________________________ 6 6 G * "* * 5 ' % ' 6 6& )C 7 6 )C 7 B # * * 5 6 35 6 3 7 45 # 5 6 , ## 5 7 7 5A 5 6 35 6 6 ...

متن کامل

Supplement to Internally 4-connected projective-planar graphs

A5 = {{1, 2}, {1, 3}, {1, 4}, {1, 5}, {2, 3}, {2, 4}, {2, 5}, {3, 4}, {3, 5}, {4, 5}, {6, 7}, {6, 8}, {6, 9}, {6, 10}, {7, 8}, {7, 9}, {7, 10}, {8, 9}, {8, 10}, {9, 10}} C11 = {{1, 2}, {1, 3}, {1, 4}, {1, 5}, {2, 3}, {2, 4}, {2, 5}, {3, 4}, {3, 5}, {4, 5}, {6, 9}, {6, 10}, {6, 11}, {7, 9}, {7, 10}, {7, 11}, {8, 9}, {8, 10}, {8, 11}} E42 = {{1, 4}, {1, 5}, {1, 6}, {2, 4}, {2, 5}, {2, 6}, {3, 4},...

متن کامل

A Partitioning Algorithm for Power-constrained Reconfigurable Real-Time Systems

!" $#% & '( )!" * & + , & . 0/1 /32 /4 65 7( 8 7 * 9 /: ; 6!< $ .!= 7 /1 >? 0 & @ A & + BDC?2 E & 1 2 # $ ( 7;'F = ; 6!< $ &#G 6!" H & I!= @ J $ = 9 /@ < & '= ?5K L 7NM"OQPR S 0T O 7 5 7 'F d & 6 2 7 I8; $ )!< *M"OQPR eT ONUWVX & Y H $9 /@ $ $ f " 7 N & L f'F Q J 5K g 7L 9 /h ; 6!...

متن کامل

Additional file 5.xlsx

position -4 C50 C49 C48 C47 C46 C45 C44 C43 C42 C41 C40 C39 C38 C37 C36 C35 C34 C33 C32 C31 C30 C29 C28 C27 C26 C25 C24 C23 C22 C21 C20 C19 C18 C17 C16 C15 C14 C13 C12 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 C-index SD P-value mark A 5 7 9 1 8 4 6 2 1 4 8 7 6 9 3 4 3 7 15 10 6 6 9 3 2 5 3 6 8 9 6 3 5 7 7 10 4 7 7 8 5 5 8 2 2 3 1 2 5 5 9 0.618 0.317 8.27E-03 n.s. A C 3 1 2 0 2 3 3 1 1 2 1 7 4 9 1 ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010