The effects of agricultural management on the reproductive activity of female rodents in Argentina |
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| Institution: | 1. Wageningen University, Forest Ecology and Forest Management, P.O. Box 47, 6700 AA Wageningen, The Netherlands;2. Rijkswaterstaat, Waterdienst, P.O. Box 17, 8200 AA Lelystad, The Netherlands;3. Wageningen University, Nature Conservation and Plant Ecology Group, P.O. Box 47, 6700 AA Wageningen, The Netherlands;1. Department of Economics, Swedish University of Agricultural Sciences, Box 7013, 750 07 Uppsala, Sweden;2. Centre for Applications in Natural Resource Mathematics, School of Mathematics and Physics, University of Queensland, St Lucia, QLD 4072, Australia;3. Department of Ecology, Grimsö Wildlife Research Station, Swedish University of Agricultural Sciences, SE-730 91 Riddarhyttan, Sweden;4. The Ecology Centre and Centre for Applied Environmental Decision Analysis, School of Biological Sciences, University of Queensland, St Lucia, QLD 4072, Australia;1. Université de Limoges, Institut 145 GEIST, EA 3842 “Homéostasie cellulaire et pathologies”, Faculté de Médecine, 2 rue du Dr Marcland, 87025 Limoges Cedex, France;2. CHU de Limoges, Service de chirurgie digestive générale et endocrinienne, 2 rue Martin Luther King, 87042 Limoges Cedex, France;3. Oncomedics, 1 Avenue d’Ester, 87069 Limoges, France;4. Université de Limoges, Institut 145 GEIST, EA 3842 “Homéostasie cellulaire et pathologies”, Faculté de Pharmacie, Laboratoire de Chimie Analytique et Bromatologie, 87025 Limoges Cedex, France;1. UMMISCO (UMI 209 IRD-UPMC), Bondy, France;2. UMR MIVEGEC (IRD 224-CNRS 5290-UM1-UM2), Montpellier, France;3. UMR ISEM (CNRS/IRD/UM2), Montpellier, France;4. Laboratoire d’Excellence Centre d’Etude de la Biodiversité Amazonienne, Montpellier, France;5. UPR AGIRS (CIRAD ES), Montpellier, France;6. CIRAD, UMR CMAEE, F-34398 Montpellier, France;7. INRA, UMR1309 CMAEE, F-34398 Montpellier, France;1. Institute for Glycomics, Griffith University, Gold Coast Campus, Queensland 4222, Australia;2. School of Medical Science, Griffith University, Gold Coast Campus, Queensland 4222, Australia |
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| Abstract: | The aim of this study was to test if female rodents in border habitats of organic farms have higher reproductive activity than those of conventional farms in south-east Córdoba province, Argentina. The study was conducted in field borders of organic and conventional farms in 2012 and 2013 during the summer months, the time of the year when reproductive activity is more likely. We sampled field borders through a CMR trapping session and recorded vegetation cover, plant litter, vegetation volume, bare ground cover and land use of the field on both sides of the border (crop/crop or crop/pasture). We recorded the number of reproductive females and the rate of postpartum estrus. Green vegetation cover was higher in organic borders whereas plant litter was higher in borders of conventional farms. We used Generalized Linear Mixed Models (GLMM) to determine the factors that influence the number of reproductive females in borders of organic and conventional farms. The number of reproductive females was mainly determined by agriculture management and field type. There were more reproductive females in organic than in conventional borders, and borders associated with crop fields at both sides supported the highest number of reproductive females. The rate of postpartum estrus was higher in organic than in conventional borders. Our results showed that in border habitats of farms under organic management reproductive activity of female rodents was higher than in borders of conventional farms. Organic farm borders may provide high quality habitats that provide resources for reproduction and persistence of rodent populations. |
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| Keywords: | Organic vs conventional farms Border habitat Habitat quality Rodent populations Reproductive activity Postpartum estrus Vegetation volume GLMM |
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