Results 41 to 50 of about 1,193 (182)

Burrow Construction From the Ground Surface in \u3ci\u3eLyroda Subita\u3c/i\u3e (Hymenoptera: Sphecidae) [PDF]

open access: yes, 2017
Plasticity in the nesting behavior of Lyroda subita, a species that renovates and then uses pre-existing burrows and other subterranean cavities for nesting sites, is illustrated by one female which apparently excavated her burrow from the ground surface.
Kurczewski, Frank E
core   +2 more sources

Hymenoptera (Aculeata) of spruce stands in the air-pollution region of Northern Bohemia

open access: yesJournal of Forest Science, 2003
Using Moericke's yellow dishes we studied the Hymenoptera (Aculeata) fauna (with the exception of Formicoidea) in spruce (Picea abies) stands of the colder region of Northern Bohemia.
E. Kula, P. Tyrner
doaj   +1 more source

Comparative nesting success of the keyhole mud-dauber (Hymenoptera, Crabronidae, Trypoxylon nitidum) in different substrates

open access: yesJournal of Hymenoptera Research, 2016
The solitary wasp Trypoxylon nitidum F. Smith nests in a variety of existing cavities. Nesting success – the fraction of completed, provisioned cells that produced adult offspring – can be estimated by examination of old cells.
Dyan M. Nelson, Christopher K. Starr
doaj   +3 more sources

New records of Crabronidae fauna (Hymenoptera, Apoidea) of Tunisia

open access: yesArxius de Miscel-lània Zoològica, 2021
Nous registres de fauna de Crabronidae (Hymenoptera, Apoidea) de Tunísia L’objectiu d’aquest treball és contribuir al coneixement de la fauna de Crabronidae present a Tunísia a partir d’espècimens recol·lectats entre els anys 2017–2019.
H. Ben Khedher   +2 more
doaj   +1 more source

Between-year variation in population sex ratio increases with complexity of the breeding system in Hymenoptera. [PDF]

open access: yes, 2011
While adaptive adjustment of sex ratio in the function of colony kin structure and food availability commonly occurs in social Hymenoptera, long-term studies have revealed substantial unexplained between-year variation in sex ratio at the population ...
Keller, L., Kümmerli, R.
core   +1 more source

Hymenoptera (Aculeata) in birch stands of the air-polluted area of Northern Bohemia

open access: yesJournal of Forest Science, 2003
The Hymenoptera (Aculeata) fauna was studied in birch stands (Betula pendula Roth) of colder areas of Northern Bohemia using the method of Moericke's yellow traps.
E. Kula, P. Tyrner
doaj   +1 more source

Spiders in a hostile world (Arachnoidea, Araneae) [PDF]

open access: yes, 2011
Spiders are powerful predators, but the threats confronting them are numerous. A survey is presented of the many different arthropods which waylay spiders in various ways. Some food-specialists among spiders feed exclusively on spiders.
Helsdingen, Peter J. van
core   +2 more sources

Brood success of the mud-daubing wasp Sceliphron jamaicense (Hymenoptera: Sphecidae) in a desert environment

open access: yesRevista Mexicana de Biodiversidad, 2018
Examination of old Sceliphron jamaicense (Fabr.) nests at 4 localities near the tip of the Baja California peninsula showed levels of brood success (i.e., the fraction of fully provisioned, closed cells producing viable adult offspring) between 24.6 ...
Christopher K. Starr   +2 more
doaj   +1 more source

Influence of forest cover and sex on wing size and shape of a spider‐hunting wasp in the Brazilian Atlantic forest

open access: yesEcological Entomology, Volume 51, Issue 1, Page 165-176, February 2026.
Forest cover significantly influences the wing shape of female Trypoxylon lactitarse. Females exhibit longer and narrower wings, linked to greater flight efficiency and dispersal. Sexual dimorphism indicates that females respond differently to ecological pressures, underscoring the role of forest cover in species persistence.
Alexsandra de Lima Klates   +3 more
wiley   +1 more source

Solitary wasps diversity (Hymenoptera: Aculeata) in different cultivation environments / Diversidade de vespas solitárias (Hymenoptera: Aculeata) em diferentes ambientes de cultivo

open access: yesDiversitas Journal, 2019
Wasps contribute to environmental quality and ecosystem services, and play a key role in the functioning of many environments. The present study identified the diversity of species of solitary wasps that occupied trap-nests in farming environments.
Daiana Carla Cosme   +5 more
doaj   +1 more source

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