Results 61 to 70 of about 9,565 (264)

Subversion of Atypical Mucin Traps by a Spore‐Coat Effector Blocks Cellular Immunity in Drosophila

open access: yesAdvanced Science, EarlyView.
While the entomopathogenic fungus Metarhizium robertsii can evade insect humoral immunity, its subversion of cellular defenses is still elusive. We identify Eac1 as a spore‐coat protein essential for infecting drosophilids by targeting atypical mucins (Sgf1 and Sgf2), which can entrap spores in a gel matrix and thereby facilitate hemocyte encapsulation.
Shiqin Li   +7 more
wiley   +1 more source

Yellowjackets, Hornets, and Paper Wasps [PDF]

open access: yes, 2007
Social wasps, including yellowjackets, hornets and paper wasps, are common stinging insects in Utah (Figs. 1, 2). The wasps are related to ants and bees, which are also capable of stinging; however, yellowjackets are the most likely to ...
Hodgson, Erin, Roe, Alan
core   +1 more source

Novel insights into the ontogeny of nestmate recognition in Polistes social wasps. [PDF]

open access: yesPLoS ONE, 2014
The importance of early experience in animals' life is unquestionable, and imprinting-like phenomena may shape important aspects of behaviour. Early learning typically occurs during a sensitive period, which restricts crucial processes of information ...
Lisa Signorotti   +3 more
doaj   +1 more source

Orchard netting impacts on biodiversity leading to cascading effects at the ecosystem level

open access: yesBiological Reviews, EarlyView.
ABSTRACT Agriculture must ensure food production without further compromising the ecosystem functions upon which it depends. Agricultural practices should therefore avoid harming farmland biodiversity, especially of taxa that supply the key ecosystem services (e.g.
Corrado Alessandrini   +13 more
wiley   +1 more source

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

Paper Wasps: Friend or Foe? [PDF]

open access: yes, 2014
NYS IPM Type: Community IPM Fact SheetPaper wasps feed on a variety of insects, such as caterpillars and other pests that can damage garden or landscape plants. As predators, therefore, paper wasps are an important part of nature.
Frye, Matthew, Alpert, Gary
core  

Mouthpart dimorphism in male and female wasps of Vespula vulgaris and Vespula germanica (Vespidae, Hymenoptera)

open access: yesDeutsche Entomologische Zeitschrift, 2018
Social wasps perform a variety of tasks with their mouthparts. Female workers use them to feed on carbohydrate-rich fluids, to build nests by collecting wood fibers and forming paper, to hunt and manipulate insect prey for feeding larvae as well as for ...
Bianca Baranek   +3 more
doaj   +3 more sources

The Strategic Role of Sustainability Certifications: A Multi‐Theoretical Framework and Comparative Analysis in the Global Wine Industry

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Sustainability certifications are increasingly embedded in the governance and competitiveness of the wine sector, yet their strategic role remains under‐theorised. This study conceptualises certifications as multidimensional strategic mechanisms and conducts a comparative analysis of 50 schemes used in the global wine industry.
Alexy Apolo‐Romero   +2 more
wiley   +1 more source

Taxonomic study of social vespid wasps (Hymenoptera: Vespidae: Vespinae & Polistinae) in Bhutan [PDF]

open access: yesJournal of Insect Biodiversity and Systematics, 2017
The social vespid wasps (Hymenoptera: Vespidae: Vespinae and Polistinae) was studied in Bhutan during 2014-2016. A total of fifteen species were collected and identified that all of them are reported as new records from Bhutan: Vespa vivax Smith, V ...
Phurpa Dorji, Wim Klein, Tshering Nidup
doaj  

A quantitative threshold for nest-mate recognition in a paper social wasp [PDF]

open access: yesBiology Letters, 2009
Nest-mate recognition is fundamental for protecting social insect colonies from intrusion threats such as predators or social parasites. The aggression of resident females towards intruders is mediated by their cuticular semiochemicals. A positive relation between the amount of cues and responses has been widely assumed and often taken for
CINI, ALESSANDRO, L. Gioli, CERVO, RITA
openaire   +3 more sources

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