Sex ratio and parental investment in Trypoxylon (Trypargilum) agamemnon Richards (Hymenoptera, Crabronidae)

Buschini, Maria Luisa Tunes; Bergamaschi, Antonio

doi:10.1590/1519-6984.20512

Cited by 5 publications

(2 citation statements)

References 25 publications

(34 reference statements)

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“…At the same time, although FR and MR did not show difference in birth rates in relation to PF, they also showed male-biased sex ratio for the emerging offspring. The sex ratio deviation for Trypoxylon species has also been recorded in other studies (Assis & Camillo 1997, Shintarou & Takayoshi 1999, Buschini 2007, Oliveira-Nascimento & Garófalo 2014, Buschini & Bergamaschi 2014. This feature has important consequences for individual fitness and population persistence and may occur in response to variations in environmental conditions, such as low food availability (Hamilton 1979, Molumby 1997, Shintarou & Takayoshi 1999.…”

Section: Discussionsupporting

confidence: 71%

Is Planting Trees Enough? The Effect of Different Types of Reforestation on the Offspring of Trypoxylon (Trypargilum) lactitarse (Hymenoptera: Crabronidae) in the Southern Amazon

2019

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The deforestation has led to local loss of species and important ecosystem services performed by them, causing ecological and economic losses. It is proposed that the reforestation of such areas aims to reduce those impacts. However, particularly in the tropics, little is known about the real success of different types of reforestation in the recovery of the species, and especially of the population parameters. Here we evaluated whether different types of reforestations affect Trypoxylon (Trypargilum) lactitarse Saussure (Hymenoptera: Crabronidae) in terms of abundance, percentage of emergence, proportion of males, fluctuating asymmetry, and foraging capacity. We compared primary forest (control) data to data collected in five different habitats: pasture, secondary forest, and tree plantations of Teak, Ficus, and a mixture of native species. The abundance of T. lactitarse was higher in tree plantations than in pasture. However, among the analyzed parameters, Teak plantation presented lower emergence percentage and the majority of individuals born were males. The emerged females in this habitat showed higher asymmetry and lower foraging capacity. Ficus showed lower individual abundance and mixed plantation showed lower emergence percentage, with both plantation types showing higher male emergence. On the other hand, in secondary forest, the analyzed parameters did not differ in relation to the primary forest, being the habitat more efficient in relation to those with tree planting. The changes in population parameters of T. lactitarse in different reforestations and particularly on Teak monocultures were probably attributed to indirect effects, such as low food availability and inadequate environmental conditions.

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Section: Discussionsupporting

confidence: 71%

Is Planting Trees Enough? The Effect of Different Types of Reforestation on the Offspring of Trypoxylon (Trypargilum) lactitarse (Hymenoptera: Crabronidae) in the Southern Amazon

2019

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“…Based on these findings, the author proposed that this species has good dispersal capacity. Studies involving other species of the genus also suggest that these wasps have a high emigration rate ( Freeman, 1981 ; Molumby, 1997 ; Buschini and Bergamaschi, 2010 , 2014 ; Buschini and Donatti, 2012 ). However, evidence regarding the degree of dispersal in T. albitarse is not coherent with the inter-population genetic differentiation observed in the present investigation and the one by Peruquetti (2003) .…”

Section: Discussionmentioning

confidence: 99%

Gene variation and genetic differentiation among populations of the solitary mud dauber wasp Trypoxylon (Trypargilum) albitarse Fabricius 1804 (Hymenoptera, Crabronidae)

Bergamaschi

Lama

2015

Genet. Mol. Biol.

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Trypoxylon is a genus of solitary crabronid wasps whose population genetics is poorly known. The purpose of the present study was to investigate the genetic variation and differentiation among five populations of Trypoxylon albitarse, a species widely distributed throughout the Neotropics, with records from Panama to northern Argentina. Eight species-specific microsatellite loci were used for genotyping 96 adult wasps (one female per nest) sampled at five sites in Brazil. The analysis of allelic richness and private alleles indicated high genetic diversity in the populations sampled. Pairwise comparisons using the F st and D est indices revealed significant differentiation for all, but one pair of populations. F st, D est, AMOVA and assignment test values pointed to inter-population differentiation. Additionally, the analysis of population structure using Bayesian and PCA methods characterized two alternative genetic groups. The Mantel test indicated no correlation between genetic and geographic distances. Despite evidence of considerable dispersal capacity for T. albitarse, the data indicate low to moderate population structuring in this species.

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Nesting Biology of the Potter Wasp Ancistrocerus flavomarginatus (Hymenoptera, Vespidae, Eumeninae) Revealed by Trap-Nest Experiments in Southern Brazil

et al. 2022

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Sex ratio and parental investment in Trypoxylon (Trypargilum) agamemnon Richards (Hymenoptera, Crabronidae)

Cited by 5 publications

References 25 publications

Is Planting Trees Enough? The Effect of Different Types of Reforestation on the Offspring of Trypoxylon (Trypargilum) lactitarse (Hymenoptera: Crabronidae) in the Southern Amazon

Is Planting Trees Enough? The Effect of Different Types of Reforestation on the Offspring of Trypoxylon (Trypargilum) lactitarse (Hymenoptera: Crabronidae) in the Southern Amazon

Gene variation and genetic differentiation among populations of the solitary mud dauber wasp Trypoxylon (Trypargilum) albitarse Fabricius 1804 (Hymenoptera, Crabronidae)

Nesting Biology of the Potter Wasp Ancistrocerus flavomarginatus (Hymenoptera, Vespidae, Eumeninae) Revealed by Trap-Nest Experiments in Southern Brazil

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