How do primates affect seed germination? A meta‐analysis of gut passage effects on neotropical plants

Oikos - Tập 125 Số 8 - Trang 1069-1080 - 2016
Lisieux Fuzessy1,2, Tatiana Cornelissen3, Charles H. Janson2, Fernando A. O. Silveira1
1Biologia Vegetale, Univ. Federal de Minas Gerais, Av. Pres. Ant nio Carlos, 6627, Belo Horizonte, 31270-901 Brazil
2College of Humanities and Sciences, Div. of Biological Sciences, Montana Univ., 32 Campus Dr., Missoula, MT 59812 USA
3Depto de Ciências Naturais Univ. Federal de São João Del‐Rei Brazil

Tóm tắt

Biotic seed dispersal is a key process maintaining biodiversity in tropical forests where most trees produce vertebrate‐dispersed seeds. Existing meta‐analyses suggest an overall positive effect of vertebrate gut passage on seed germination, but no significant effects for non‐flying mammals. However, previous meta‐analyses combined rodents (seed predators) and primates (seed dispersers) into the non‐flying mammals category, which may confound specific effects of each group on seed germination. However positive effects of monkeys on germination had previously been found in some studies. Here we disentangle the role of Neotropical primates as contributors to seed dispersal in tropical forests by running a meta‐analysis to determine the overall magnitude of gut passage effects on seed germination percentage and mean time to germination. We also compare effect sizes as a function of different feeding guilds, gut complexities, and seed size. Our results show a strong, positive effect of primates on seed germination percentage and on the number of days to first germination. Strictly frugivorous monkeys, the group most threatened by extinction, showed the highest dispersal quality, increasing germination percentage by 75%. Primates that include insects in their diets had no average effect on germination percentage or time. Gut passage had different outcomes on seeds with different sizes; both large and small seeds showed similar increases in germination percentages after gut passage, but only large seeds germinated faster than control seeds after gut passage. Our results show a relevant role for primates in providing high seed dispersal quality and as drivers of forest regeneration. The combined effects of defaunation and forest fragmentation may result in decreased regeneration of trees, which has the potential to affect negatively both forest structure and ecosystem processes. Finally, we provide general guidelines for standardizing research on seed dispersal by primates.SynthesisConsuming fleshy fruits and dispersing seeds is the main ecological service provided by vertebrates to plants. Vertebrate increases seed germination due to treatment given during digestive system passage. Previous meta‐analyses suggest an overall positive effect of vertebrate gut passage on germination, but no insights are available on its variation among different functional groups of mammals. Our analyses indicated that gut passage by Neotropical primates increased seed germination. Strict frugivores, the ones most threatened by extinction, were the most efficient. Our results show a relevant role for primates in providing high seed dispersal quality and as drivers of forest regeneration, which can be meaningful for conservation in a community scale.

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Tài liệu tham khảo

10.1111/oik.02512

10.1007/s00442-003-1480-4

10.1111/j.1095-8339.2009.00996.x

10.1086/419764

10.1007/BF00396763

10.1890/02-4036

Baskin C, 2014, Seeds: ecology, biogeography and evolution of dormancy and germination

10.1111/j.1744-7429.2009.00538.x

10.1890/13-0580.1

10.2307/2388705

10.1002/evan.1360040303

10.1007/s10764-010-9460-0

10.1002/jmor.1051660306

10.1111/j.1365-2745.2010.01739.x

Delouche J. C, 1962, The tetrazolium test for seed viability

Dirzo R., 1991, Plant–animal interactions: evolutionary ecology in tropical and temperate regions, 273

10.1111/j.1523-1739.1990.tb00320.x

Dirzo R., 2007, The plight of large animals in tropical forests and the consequences for plant regeneration, Biotropica, 39, 289, 10.1111/j.1744-7429.2007.00293.x

10.1111/j.1744-7429.2007.00274.x

10.1002/ajp.1350060202

10.1016/j.baae.2012.02.006

10.1017/CBO9780511614101

10.1016/j.actao.2011.01.016

10.1002/ajpa.1330880403

10.2307/1940538

10.1590/S1676-06032011000100019

10.1111/j.1365-2745.2009.01589.x

10.1046/j.1523-1739.1999.98245.x

10.1890/0012-9658(1999)080[1142:SIIEMA]2.0.CO;2

10.1002/ar.21515

10.1017/S026646740400207X

10.1890/0012-9658(1999)080[1150:TMAORR]2.0.CO;2

Herrera C. M, 2002, Plant–animal interactions: an evolutionary approach, 185

10.1111/oik.01288

Hladik C. M, 1978, The ecology of arboreal folivores, 373

10.1146/annurev.es.13.110182.001221

10.1641/0006-3568(2004)054[0651:WSDM]2.0.CO;2

10.1073/pnas.1205184109

10.2307/2388595

10.1007/BF02735451

10.2307/2260686

10.1098/rstb.2012.0341

Kay R. F, 1984, Adaptations for foraging in nonhuman primates: contributions to an organismal biology of prosimians, monkeys, and apes, 21, 10.7312/rodm90184-003

10.1007/PL00008882

10.1002/(SICI)1098-2345(1998)45:1<9::AID-AJP3>3.0.CO;2-#

10.1046/j.1365-2435.1999.00309.x

Lorenzi H, 1998, Árvores Brasileiras

10.1111/j.1744-7429.2006.00100.x

10.1890/11-1653.1

10.1126/science.1104863

10.1073/pnas.0501473102

10.1016/S0169-5347(01)02235-2

10.1007/BF00317667

10.1017/S0266467415000127

Norconk M. A., 2009, Primates: comparative perspectives in the study of behavior, ecology and conservation, 279

10.1016/j.biocon.2008.03.020

10.1046/j.1523-1739.1992.06040513.x

10.1002/zoo.20008

10.1111/j.1365-2435.2005.01057.x

Rosenberg M. S, 2000, MetaWin: statistical software for meta‐analysis, ver. 2.0

10.1037/0033-2909.86.3.638

Royal Botanic Gardens Kew2014.Seed Information Database (SID). Ver. 7.1. <http://data.kew.org/sid/> (September 2014).

Ruxton G, 2010, Experimental design for the life sciences

10.1111/j.1365-2435.2005.00973.x

10.1111/j.1469-8137.2010.03402.x

10.1079/9781845931650.0340

10.1023/A:1021118618936

10.1111/j.1365-2745.2010.01726.x

10.1078/1433-8319-00057

Traveset A., 2002, Frugivores and seed dispersal: ecological, evolutionary and conservation issues, 339

10.1046/j.0269-8463.2001.00561.x

Traveset A., 2007, Seed dispersal: theory and its application in a changing world, 79

10.1146/annurev.es.24.110193.000441

10.1007/s00442-003-1448-4

10.1890/04-1647

10.1016/S0169-5347(02)02541-7

10.1016/j.foreco.2008.07.032

10.1890/0012-9615(2000)070[0331:SDSPAS]2.0.CO;2

10.1111/jbi.12000

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Oikos

Tập 125 Số 8

1069-1080

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