Results 81 to 90 of about 1,403 (182)

Loss of males from mixed-sex societies in termites

open access: yesBMC Biology, 2018
Background Sexual reproduction is the norm in almost all animal species, and in many advanced animal societies, both males and females participate in social activities.
Toshihisa Yashiro   +7 more
doaj   +1 more source

Parthenogenesis under influence of microbes in Thysanoptera [PDF]

open access: yes, 2008
Der Reproduktionsmechanismus der meisten Thysanopteren beruht auf Haplodiploidie (EVANS et al. 2004). Die Mehrzahl der Arten vermehrt sich durch Arrhenotokie. Bei einigen Arten sind Männchen jedoch sehr selten, sie vermehren sich durch Thelytokie.
Kranz, Renate   +2 more
core  

THE PRESENT PEST STATUS OF EUCALYPTUS SAP-SUCKERS AND GALL WASPS IN CAMPANIA (ITALY) [PDF]

open access: yes, 2018
Sap-suckers and gall wasps may be a severe phytosanitary problem for several Eucalyptus species, particularly for the red gum E. camaldulensis, the most widely cultivated Australian native tree species worldwide.
Bernardo, Umberto   +4 more
core   +2 more sources

Newcomers and Old Friends: Long‐Distance and Bridgehead Introductions Both Contribute to the Recent Invasion of the Little Fire Ant in Southern Europe

open access: yesDiversity and Distributions, Volume 31, Issue 7, July 2025.
ABSTRACT Aim Biological invasions result from the combination of (i) population dispersal opportunities and (ii) adaptations to the recipient environment. Identifying complex migration histories, made of long‐distance dispersal from the native range and secondary introductions, or genetic patterns indicative of adaptation is crucial to build coherent ...
Anne Loiseau   +11 more
wiley   +1 more source

Entiminae Schoenherr 1823 [PDF]

open access: yes, 2014
Fil: Marvaldi, Adriana E.. Instituto Argentino de Investigaciones de las Zonas Áridas. Mendoza; ArgentinaFil: Lanteri, Analía Alicia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo.
del Río, María Guadalupe   +3 more
core   +1 more source

Discrimination Against Non‐Nestmates Functions to Exclude Socially Parasitic Conspecifics in an Ant

open access: yesEthology, Volume 131, Issue 3, March 2025.
ABSTRACT Social animals utilise various communication methods to organise their societies. In social insects, nestmate discrimination plays a crucial role in regulating colony membership. Counter to this system, socially parasitic species employ diverse behavioural and chemical strategies to bypass their host's detection.
Takuma P. Nakamura, Shigeto Dobata
wiley   +1 more source

Parthenogenesis did not consistently evolve in insular populations of Ischnura hastata (Odonata, Coenagrionidae) [PDF]

open access: yes, 2017
1. The evolutionary advantages that have driven the evolution of sex are still very much debated, and a number of benefits of parthenogenesis over sexual reproduction have been proposed.
Almbro   +47 more
core   +1 more source

Dysdera parthenogenetica sp. nov. (Araneae, Dysderidae): A Unique Case of Parthenogenesis in Spiders

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 2025, Issue 1, 2025.
We studied the parthenogenetic lineages of the spider Dysdera hungarica (Araneae: Dysderidae). Based on our data, we consider them to constitute a separate taxon, Dysdera parthenogenetica sp. nov. Morphologically, the new species differs mainly by slightly reduced female copulatory organs.
Milan Řezáč   +7 more
wiley   +1 more source

Detection and characterization of Wolbachia infections in laboratory and natural populations of different species of tsetse flies (genus Glossina)

open access: yesBMC Microbiology, 2012
Background Wolbachia is a genus of endosymbiotic α-Proteobacteria infecting a wide range of arthropods and filarial nematodes. Wolbachia is able to induce reproductive abnormalities such as cytoplasmic incompatibility (CI), thelytokous parthenogenesis ...
Doudoumis Vangelis   +11 more
doaj   +1 more source

Mitochondrial cytochrome oxidase I in tetranychid mites : a comparison between molecular phylogeny and changes of morphological and life history traits [PDF]

open access: yes, 1996
Spider mites, #Tetranychidae$, represent one of the most cosmopolitan and economically important groups of terrestrial arthropods ; however, many aspects of their evolutionary relationships remain uncertain.
Boursot, P.   +3 more
core   +1 more source

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