FN Archimer Export Format
PT J
TI High environmental stress and productivity increase functional diversity along a deep‐sea hydrothermal vent gradient
BT 
AF ALFARO LUCAS, Joan Manel
   Pradillon, Florence
   Zeppilli, Daniela
   Michel, Loic
   Martinez‐Arbizu, P
   Tanaka, H
   Foviaux, M
   Sarrazin, Jozee
AS 1:1;2:1;3:1;4:1;5:2;6:3;7:1;8:1;
FF 1:;2:PDG-REM-EEP-LEP;3:PDG-REM-EEP-LEP;4:PDG-REM-EEP-LEP;5:;6:;7:;8:PDG-REM-EEP-LEP;
C1 Ifremer, EEP Plouzané, France
   Senckenberg am Meer German Center for Marine Biodiversity Research Wilhelmshaven ,Germany
   Tokyo Sea Life Park Tokyo, Japan
C2 IFREMER, FRANCE
   DZMB SENCKENBERG MEER, GERMANY
   TOKYO SEA LIFE PARK TOKYO, JAPAN
SI BREST
SE PDG-REM-EEP-LEP
IN WOS Ifremer UPR
   copubli-europe
   copubli-int-hors-europe
IF 5.499
TC 17
UR https://archimer.ifremer.fr/doc/00641/75342/76070.pdf
   https://archimer.ifremer.fr/doc/00641/75342/76071.pdf
   https://archimer.ifremer.fr/doc/00641/75342/76072.pdf
   https://archimer.ifremer.fr/doc/00641/75342/76073.pdf
   https://archimer.ifremer.fr/doc/00641/75342/76074.pdf
   https://archimer.ifremer.fr/doc/00641/75342/76075.pdf
LA English
DT Article
CR MOMARSAT : MONITORING THE MID ATLANTIC RIDGE
   MOMARSAT2013
   MOMARSAT2015
BO Pourquoi pas ?
DE ;colonization;community assembly;energy;environmental filtering;functional beta-diversity;species beta-diversity
AB Productivity and environmental stress are major drivers of multiple biodiversity facets and faunal community structure. Little is known on their interacting effects on early community assembly processes in the deep sea (>200 m), the largest environment on Earth. However, at hydrothermal vents productivity correlates, at least partially, with environmental stress. Here, we studied the colonization of rock substrata deployed along a deep‐sea hydrothermal vent gradient at four sites with and without direct influence of vent fluids at 1700 m depth in the Lucky Strike vent field (Mid‐Atlantic Ridge, MAR). We examined in detail the composition of faunal communities (>20 µm) established after two years and evaluated species and functional patterns. We expected the stressful hydrothermal activity to (1) limit functional diversity and (2) filter for traits clustering functionally similar species. However, our observations did not support our hypotheses. On the contrary, our results show that hydrothermal activity enhanced functional diversity. Moreover, despite high species diversity, environmental conditions at surrounding sites appear to filter for specific traits, thereby reducing functional richness. In fact, diversity in ecological functions may relax the effect of competition allowing several species to coexist in high densities in the reduced space of the highly‐productive vent habitats under direct fluid emissions. We suggest that the high productivity at fluid‐influenced sites supports higher functional diversity and traits that are more energetically expensive. The presence of exclusive species and functional entities led to a high turnover between surrounding sites. As a result, some of these sites contributed more than expected to the total species and functional β‐diversities. The observed faunal overlap and energy links (exported productivity) suggest that rather than operating as separate entities, habitats with and without influence of hydrothermal fluids may be considered as interconnected entities. Low functional richness and environmental filtering suggests that surrounding areas, with their very heterogeneous species and functional assemblages, may be especially vulnerable to environmental changes related to natural and anthropogenic impacts, including deep‐sea mining. 
PY 2020
PD NOV
SO Ecology
SN 0012-9658
PU Wiley
VL 101
IS 11
UT 000562312500001
DI 10.1002/ecy.3144
ID 75342
ER

EF