Results 91 to 100 of about 1,403 (182)

Biogeography of oribatid mites (Acari) reflects their ancient origin and points to Southeast Asia as centre of radiation

open access: yesJournal of Biogeography, Volume 51, Issue 11, Page 2211-2220, November 2024.
Abstract Aim Understanding the worldwide distribution of species has fascinated scientists at least since Alfred Russel Wallace. Global patterns of belowground biodiversity may fundamentally differ from those of aboveground organisms. Here, we examine the global pattern and potential mechanisms driving the endemism and overlap of a soil microarthropod ...
Jing‐Zhong Lu   +3 more
wiley   +1 more source

Evolution of obligate asexuality in termites with mixed‐sex societies

open access: yesPopulation Ecology, Volume 66, Issue 4, Page 219-231, October 2024.
The evolution of obligate asexuality is thought to be prevented in animals whose males play crucial roles beyond the contribution of gametes. While obligate asexuality had not until recently been observed in termites whose colonies commonly comprise both male and female reproductives, workers, and soldiers, all‐female asexual populations of the termite
Toshihisa Yashiro
wiley   +1 more source

Parasitic Cape bees in the northern regions of South Africa: source of the founder population [PDF]

open access: yes, 2002
Multivariate discriminant analyses of nine standard morphometric characters of honeybee workers were used to track the origin of a social parasitic pseudo-clone of thelytokous laying workers that have invaded colonies of Apis mellifera scutellata in ...
Hepburn, H R, Neumann, P, Radloff, S E
core   +1 more source

Temporal variation of soil microarthropods in different forest types and regions of central Europe

open access: yesOikos, Volume 2024, Issue 10, October 2024.
Biodiversity and biomass of aboveground arthropods in central European forests continuously declined during the last decade. However, whether belowground microarthropod communities follow similar patterns has not been investigated. In this study, we compared the abundance, diversity, community composition, stability and asynchrony of oribatid mites ...
André Junggebauer   +5 more
wiley   +1 more source

The first gynandromorph of a zorapteran and potential thelytokous parthenogenesis in a population of Zorotypus brasiliensis Silvestri (Zoraptera: Zorotypidae)

open access: yesRevista Brasileira de Entomologia, 2017
The first gynandromorph of the insect order Zoraptera is reported. A gynandromorph of Zorotypus brasiliensis Silvestri is described from a likely parthenogenetic population in the Atlantic Forest around the border of the Brazilian states of Minas Gerais, Rio de Janeiro, and São Paulo.
Rafael, José Albertino   +2 more
openaire   +6 more sources

Wolbachia infection in Argentinean populations of Anastrepha fraterculus sp1: preliminary evidence of sex ratio distortion by one of two strains

open access: yesBMC Microbiology, 2019
Background Wolbachia, one of the most abundant taxa of intracellular Alphaproteobacteria, is widespread among arthropods and filarial nematodes. The presence of these maternally inherited bacteria is associated with modifications of host fitness ...
Claudia Alejandra Conte   +6 more
doaj   +1 more source

Multiple mating in the ant Cataglyphis cursor: testing the sperm limitation and the diploid male load hypotheses [PDF]

open access: yes, 2018
.: Multiple mating (i.e., polyandry) by queens in social Hymenoptera is expected to weaken social cohesion since it lowers within-colony relatedness, and hence, indirect fitness benefits from kin selection.
Allard, D.   +3 more
core  

Widespread Wolbachia infection in terrestrial isopods and other crustaceans [PDF]

open access: yes, 2012
Wolbachia bacteria are obligate intracellular alpha-Proteobacteria of arthropods and nematodes. Although widespread among isopod crustaceans, they have seldom been found in non-isopod crustacean species.
Bouchon, D   +9 more
core   +5 more sources

Contribution to the study of the egg parasitic Hymenoptera of the Azores Islands. [PDF]

open access: yes, 1990
3rd International Symposium "Trichogramma and other egg parasitoids", San Antonio (Texas, USA), September 23-27, 1990.During the summer of 1989, several Hymenoptera egg and non egg parasitoids were captured in the island of Sao Miguel, Azores.
Anunciada, Lorete   +2 more
core  

Cytogenetic analysis on geographically distant parthenogenetic populations of Tityus trivittatus Kraepelin, 1898 (Scorpiones, Buthidae): karyotype, constitutive heterochromatin and rDNA localization [PDF]

open access: yes, 2014
Tityus trivittatus Kraepelin, 1898 is the most medically important scorpion species of Argentina, and parthenogenetic populations are present in the major cities of this country.
Adilardi, Renzo Sebastián   +3 more
core   +4 more sources

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