Limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem

Limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem

Intensive agricultural land use can impact pollinators mainly through habitat loss and/or modification. Native bees are negatively affected by agricultural intensification, isolation from natural habitats, decreases in plant diversity, and reduction in the availability of nesting sites. Despite this, in the Pampean region, there are scarce studies about the effect of agricultural activities on native bees. We studied the nesting ecology of the native leafcutter bee Megachile gomphrenoides (Megachilidae) in eight sites immersed in an agricultural matrix, where land use is a mosaic of agricultural land and some semi-natural areas. The sampling was developed using paired trap-nests in fragments without agricultural management and in soybean crops. We aimed to analyse the effects of floral and nesting resources on the abundance, the reproductive success and the parasitism rate of a population of M. gomphrenoides in a Pampean agroecosystem. Floral diversity was significantly correlated with abundance of nests and brood cells, and both parasitism rate and reproductive success of M. gomphrenoides were higher in nests built in fragments without agricultural management when compared to crop areas. Additionally, a negative correlation was found between reproductive success and flower diversity in crop areas. These results suggest that floral diversity is limiting the abundance of M. gomphrenoides nests, its reproductive success as well as its parasitism rate.

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Bibliographic Details
Main Authors: Rosanigo, Marina Paola, Marrero, Hugo Javier, Torretta, Juan Pablo
Format: Texto biblioteca
Language:eng
Subjects:ARGENTINA, MEGACHILE, TRAP-NEST, FLORAL RESOURCES, PARASITES, ,
Online Access:http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54149
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spelling KOHA-OAI-AGRO:541492022-08-01T12:47:40Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54149http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=AAGLimiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystemRosanigo, Marina PaolaMarrero, Hugo JavierTorretta, Juan Pablotextengapplication/pdfIntensive agricultural land use can impact pollinators mainly through habitat loss and/or modification. Native bees are negatively affected by agricultural intensification, isolation from natural habitats, decreases in plant diversity, and reduction in the availability of nesting sites. Despite this, in the Pampean region, there are scarce studies about the effect of agricultural activities on native bees. We studied the nesting ecology of the native leafcutter bee Megachile gomphrenoides (Megachilidae) in eight sites immersed in an agricultural matrix, where land use is a mosaic of agricultural land and some semi-natural areas. The sampling was developed using paired trap-nests in fragments without agricultural management and in soybean crops. We aimed to analyse the effects of floral and nesting resources on the abundance, the reproductive success and the parasitism rate of a population of M. gomphrenoides in a Pampean agroecosystem. Floral diversity was significantly correlated with abundance of nests and brood cells, and both parasitism rate and reproductive success of M. gomphrenoides were higher in nests built in fragments without agricultural management when compared to crop areas. Additionally, a negative correlation was found between reproductive success and flower diversity in crop areas. These results suggest that floral diversity is limiting the abundance of M. gomphrenoides nests, its reproductive success as well as its parasitism rate.Intensive agricultural land use can impact pollinators mainly through habitat loss and/or modification. Native bees are negatively affected by agricultural intensification, isolation from natural habitats, decreases in plant diversity, and reduction in the availability of nesting sites. Despite this, in the Pampean region, there are scarce studies about the effect of agricultural activities on native bees. We studied the nesting ecology of the native leafcutter bee Megachile gomphrenoides (Megachilidae) in eight sites immersed in an agricultural matrix, where land use is a mosaic of agricultural land and some semi-natural areas. The sampling was developed using paired trap-nests in fragments without agricultural management and in soybean crops. We aimed to analyse the effects of floral and nesting resources on the abundance, the reproductive success and the parasitism rate of a population of M. gomphrenoides in a Pampean agroecosystem. Floral diversity was significantly correlated with abundance of nests and brood cells, and both parasitism rate and reproductive success of M. gomphrenoides were higher in nests built in fragments without agricultural management when compared to crop areas. Additionally, a negative correlation was found between reproductive success and flower diversity in crop areas. These results suggest that floral diversity is limiting the abundance of M. gomphrenoides nests, its reproductive success as well as its parasitism rate.ARGENTINAMEGACHILETRAP-NESTFLORAL RESOURCESPARASITESJournal of Apicultural Research
institution UBA FA
collection Koha
country Argentina
countrycode AR
component Bibliográfico
access En linea
En linea
databasecode cat-ceiba
tag biblioteca
region America del Sur
libraryname Biblioteca Central FAUBA
language eng
topic ARGENTINA
MEGACHILE
TRAP-NEST
FLORAL RESOURCES
PARASITES

ARGENTINA
MEGACHILE
TRAP-NEST
FLORAL RESOURCES
PARASITES
spellingShingle ARGENTINA
MEGACHILE
TRAP-NEST
FLORAL RESOURCES
PARASITES

ARGENTINA
MEGACHILE
TRAP-NEST
FLORAL RESOURCES
PARASITES
Rosanigo, Marina Paola
Marrero, Hugo Javier
Torretta, Juan Pablo
Limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem
description Intensive agricultural land use can impact pollinators mainly through habitat loss and/or modification. Native bees are negatively affected by agricultural intensification, isolation from natural habitats, decreases in plant diversity, and reduction in the availability of nesting sites. Despite this, in the Pampean region, there are scarce studies about the effect of agricultural activities on native bees. We studied the nesting ecology of the native leafcutter bee Megachile gomphrenoides (Megachilidae) in eight sites immersed in an agricultural matrix, where land use is a mosaic of agricultural land and some semi-natural areas. The sampling was developed using paired trap-nests in fragments without agricultural management and in soybean crops. We aimed to analyse the effects of floral and nesting resources on the abundance, the reproductive success and the parasitism rate of a population of M. gomphrenoides in a Pampean agroecosystem. Floral diversity was significantly correlated with abundance of nests and brood cells, and both parasitism rate and reproductive success of M. gomphrenoides were higher in nests built in fragments without agricultural management when compared to crop areas. Additionally, a negative correlation was found between reproductive success and flower diversity in crop areas. These results suggest that floral diversity is limiting the abundance of M. gomphrenoides nests, its reproductive success as well as its parasitism rate.
format Texto
topic_facet
ARGENTINA
MEGACHILE
TRAP-NEST
FLORAL RESOURCES
PARASITES
author Rosanigo, Marina Paola
Marrero, Hugo Javier
Torretta, Juan Pablo
author_facet Rosanigo, Marina Paola
Marrero, Hugo Javier
Torretta, Juan Pablo
author_sort Rosanigo, Marina Paola
title Limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem
title_short Limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem
title_full Limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem
title_fullStr Limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem
title_full_unstemmed Limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem
title_sort limiting resources on the reproductive success of a cavity - nesting bee species in a grassland agroecosystem
url http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54149
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
work_keys_str_mv AT rosanigomarinapaola limitingresourcesonthereproductivesuccessofacavitynestingbeespeciesinagrasslandagroecosystem
AT marrerohugojavier limitingresourcesonthereproductivesuccessofacavitynestingbeespeciesinagrasslandagroecosystem
AT torrettajuanpablo limitingresourcesonthereproductivesuccessofacavitynestingbeespeciesinagrasslandagroecosystem
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