scholarly journals Nesting biology of the Australian solitary bee Paracolletes crassipes Smith (Hymenoptera: Colletidae) accords with that of the Diphaglossinae

2020 ◽  
Vol 35 (1) ◽  
pp. 53
Author(s):  
Terry F. Houston
Keyword(s):  
Solitary Bee ◽  
Nesting Biology

Nesting biology and mating behavior of the solitary bee Epicharis nigrita (Apoidea: Centridini)

2019 ◽  
Vol 58 (4) ◽  
pp. 512-521 ◽  
Author(s):  
Celso Feitosa Martins ◽  
Valdemar Ismael dos Santos Neto ◽  
Renata Drummond Marinho Cruz
Keyword(s):  
Mating Behavior ◽  
Solitary Bee ◽  
Nesting Biology

scholarly journals Bionomic Aspects of the Solitary Bee Tetrapedia diversipes Klug, 1810 (Hymenoptera: Apidae: Tetrapediini)

Sociobiology ◽  
2019 ◽  
Vol 66 (1) ◽  
pp. 113
Author(s):  
Arianne Moreira Cavalcante ◽  
Cláudia Inês da Silva ◽  
Angela Maria da Silva Gomes ◽  
Gercy Soares Pinto ◽  
Isac Gabriel Abrahão Bomfim ◽  
...  
Keyword(s):  
Sex Ratio ◽  
Natural Enemies ◽  
Total Mortality ◽  
Pupal Stage ◽  
Solitary Bee ◽  
Nesting Biology ◽  
Parasitic Species ◽  
Trap Nests ◽  
Reproductive Life ◽  
Tetrapedia Diversipes

The study aimed to describe bionomic aspects of Tetrapedia diversipes Klug, 1810 in order to allow the conservation or breeding of these bees. The nesting biology was studied using trap nests made with cardboard-paper tubes and plastic straws during the period between December 2014 and September 2015, in the Bee Unit of the Federal University of Ceará, Brazil. A total of 135 nests were obtained with 593 brood cells, from which emerged 448 adults and individuals of two parasitic species. The proportion of females (n = 297) was higher than that of males (n = 151) resulting in a sex ratio of 1.97:1. The total mortality in the nests was 24.45% and the majority of deaths recorded occurred at the pupal stage (33.1%). During their reproductive life, females of this bee species were able to construct up to 16 brood cells. The trap-nests removal and transfer to the laboratory shortly after finished by the bees reduced the attack of natural enemies.

scholarly journals Nesting habits of Centris (Hemisiella) dichrootricha (Hymenoptera: Apidae) in the Northern Cerrado of Brazil

2016 ◽  
Vol 64 (3) ◽  
Author(s):  
Gracy C. A. Carvalho ◽  
Léa M. M. Carreira ◽  
Márcia M. C. Rêgo ◽  
Patrícia M. C. Albuquerque
Keyword(s):  
Solitary Bee ◽  
Gallery Forest ◽  
Nesting Biology ◽  
Byrsonima Crassifolia ◽  
Forest Sites ◽  
Trap Nests ◽  
Pollen Types ◽  
The Family ◽  
Nesting Habits ◽  
Forest Habitats

The Neotropical bee Centris (Hemisiella) dichrootricha is a solitary bee that nests in pre-existing cavities that occur in the rain forest. This study describes the nesting biology of C. dichrootricha and its preference for nesting in Cerrado and gallery forest habitats. The study was conducted from January 2012 and December 2013, in Mirador State Park in the municipality of Formosa da Serra Negra, Maranhão State, Brazil. For this, wooden trap-nests of 6, 8, 10, 12, 14 and 16 mm in diameter were used; a total of 300 trap-nests were placed in the gallery forest and Cerrado areas, respectively. Traps were monitored monthly and all completed nests were collected and replaced with empty ones. The nests were then taken to the laboratory to analyze bee development and emergence, nests characteristics and parasites presence. The species used 29 of the trap-nests, which had diameters of 8, 10, 12 and 14 mm. A total of 87 C. dichrootricha specimens emerged. The nests were parasitized by two bee species, Mesocheira bicolor (Apinae) and Coelioxys sp. (Megachilinae), and one fly species, Antrax sp. (Diptera). The highest nesting incidence of 72.4 % was observed in the gallery forest, whereas only 27.6 % in the Cerrado; this difference in habitat use was significant (χ² = 5.56; p < 0.05; DF = 1). For the nests that were built in the gallery forest, 80.9% of the soil originated from the Cerrado. The females were significantly larger than the males (F1, 76 = 595.19; p < 0.001). There were 11 pollen types that belonged to six families. Pollen of the family Malpighiaceae was most frequently used, with four species represented (Byrsonima crassifolia, B. rotunda, B. spicata and Heteropterys sp.). C. dichrootricha showed a preference for nesting in cavities of various diameters in gallery forest sites. The present study provides a novel description of the nesting habits and biology of C. dichrootricha in habitats of Central/Southern Maranhão. C. dichrootricha primarily used resources from the Cerrado, including soil to build their nests, pollen and floral oils; we concluded that gallery forest and Cerrado areas are intrinsically related to the maintenance of local populations of this species.

PERÍODO DE DESOVA E SUCESSO REPRODUTIVO DO TRACAJÁ Podocnemis unifilis TROSCHEL 1848 (TESTUDINES: PODOCNEMIDIDAE) NA VÁRZEA DA RDSM – MÉDIO SOLIMÕES, BRASIL

2008 ◽  
Vol 2 (1) ◽  
pp. 63-75
Author(s):  
Augusto Fachín Terán ◽  
Eduardo Matheus Von Mülhen
Keyword(s):  
Hatching Success ◽  
Management Program ◽  
Nesting Biology ◽  
Sand Beach ◽  
Podocnemis Unifilis ◽  
Turtle Population ◽  
Nesting Beaches ◽  
Conservation And Management ◽  
Tegu Lizard ◽  
Solimões River

In this study the nesting biology of Podocnem is unifilis was investigated from July to November 1998 at the Mamirauá Sustainable Development Reserve, located in the Solimões river, near Tefé, Amazonas, Brazil. Podocnemis unifilis nested in August and September, with the hatching event occurring in October and November. Nests were excavated in clay soils (67.5%), sand (25%), and leaf litter (7.5%). Hatching success was highest in the sand beach nests and lowest in the clay banks nests. Humans and the tegu lizard (Tupinambis) were the main egg predators. This turtle population can recover only by the protection of nesting beaches, educational programs for the in habitants of the Reserve, participation of the community in the conservation and management program , and permanent guarding of the nesting beaches by Instituto Brasileiro do Meio Ambiente e Dos Recursos Naturais Renováveis-IBAMA authorities.

Influence of Nesting Characteristics on Health of Wild Bee Communities

2020 ◽  
Vol 65 (1) ◽  
pp. 39-56 ◽  
Author(s):  
Alexandra Harmon-Threatt
Keyword(s):  
Climate Change ◽  
Nest Site ◽  
Site Conditions ◽  
Wild Bees ◽  
Nesting Biology ◽  
Habitat Disturbances ◽  
Wild Bee ◽  
Growth Development ◽  
Bee Communities ◽  
Nest Initiation

Nest site availability and quality are important for maintaining robust populations and communities of wild bees. However, for most species, nesting traits and nest site conditions are poorly known, limiting both our understanding of basic ecology for bee species and conservation efforts. Additionally, many of the threats commonly associated with reducing bee populations have effects that can extend into nests but are largely unstudied. In general, threats such as habitat disturbances and climate change likely affect nest site availability and nest site conditions, which in turn affect nest initiation, growth, development, and overwintering success of bees. To facilitate a better understanding of how these and other threats may affect nesting bees, in this review, I quantify key nesting traits and environmental conditions and then consider how these traits may intersect with observed and anticipated changes in nesting conditions experienced by wild bees. These data suggest that the effects of common threats to bees through nesting may strongly influence their survival and persistence but are vastly understudied. Increasing research into nesting biology and incorporating nesting information into conservation efforts may help improve conservation of this declining but critical group.

scholarly journals Floral resource diversification promotes solitary bee reproduction and may offset insecticide effects – evidence from a semi‐field experiment

2021 ◽  
Vol 24 (4) ◽  
pp. 668-675 ◽  
Author(s):  
Felix Klaus ◽  
Teja Tscharntke ◽  
Gabriela Bischoff ◽  
Ingo Grass
Keyword(s):  
Field Experiment ◽  
Solitary Bee ◽  
Floral Resource
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