Results 91 to 100 of about 7,986 (258)
The $P^*$ rule in the stochastic Holt-Lawton model of apparent competition [PDF]
arXiv, 2020 In $1993$, Holt and Lawton introduced a stochastic model of two host species parasitized by a common parasitoid species. We introduce and analyze a generalization of these stochastic difference equations with any number of host species, stochastically varying parasitism rates, stochastically varying host intrinsic fitnesses, and stochastic immigration ...
arxiv
Stellar Obliquities & Planetary Alignments (SOPA) I. Spin-Orbit measurements of Three Transiting Hot Jupiters: WASP-72b, WASP-100b, & WASP-109b [PDF]
, 2018 We report measurements of the sky-projected spin--orbit angles for three transiting hot Jupiters: two of which are in nearly polar orbits, WASP-100b and WASP-109b, and a third in a low obliquity orbit, WASP-72b. We obtained these measurements by observing the Rossiter--McLaughlin effect over the course of the transits from high resolution spectroscopic
arxiv +1 more source
First report of Barichneumon derogator (Hym.: Ichneumonidae: Ichneumoninae) from Iran [PDF]
نامه انجمن حشرهشناسی ایران, 2014 We studied the pest and parasitoid fauna of cauliflower fields in southern Tehran in 2011. In the course of our research the Ichneumonid wasp Barichneumon derogator (Wesmael) of the subfamily Ichneumoninae was collected and identified.
F. Jahan +3 more
doaj
RNA Viruses in Parasitoid Wasps
, 2012 This chapter describes the different RNA viruses that have been detected at least once in parasitoid wasps. It could be wondered whether the other families of parasitoids are really absent, or if this is due to the fact that inadequate techniques were used to detect viruses.
openaire +1 more source
Determinants of mating success in a lek‐mating species
Agricultural and Forest Entomology, EarlyView.Abstract Leks are male‐biased aggregations formed for mating, where sperm is the only resource acquired by visiting females. One of the many advantages of leks is the possibility to efficiently assess the quality of potential mates by comparing aggregated individuals of the same sex with one another. When direct mate choice occurs in a lekking species,
Joséphine Queffelec +3 more
wiley +1 more source
Revista Brasileira de Entomologia, 2013 New host association: Polybia scutellaris (Hymenoptera, Vespidae) parasitized by Melaloncha (Diptera, Phoridae). The genus Melaloncha Brues is a large assemblage of New World, parasitoid phorid flies. They are parasitoids of Apoidea bees.
M. Ayelen Lutz, Brian V. Brown
doaj +3 more sources
Spatial variability of hosts, parasitoids and their interactions across a homogeneous landscape
Ecology and Evolution, 2020 Species assemblages and their interactions vary through space, generating diversity patterns at different spatial scales. Here, we study the local‐scale spatial variation of a cavity‐nesting bee and wasp community (hosts), their nest associates ...
Anna Torné‐Noguera +3 more
doaj +1 more source
Evolutionary implications of a deep‐time perspective on insect pollination
Biological Reviews, EarlyView.ABSTRACT Plant pollination by insects represents one of the most transformative and iconic ecological relationships in the natural world. Despite tens of thousands of papers, as well as numerous books, on pollination biology published over the past 200 years, most studies focused on the fossil record of pollinating insects have only been published in ...
David Peris +10 more
wiley +1 more source
Spatial and Temporal Heterogeneity of Host-Parasitoid Interactions in Lupine Habitat [PDF]
arXiv, 2008 The inhabitants of the bush lupine in coastal California have been the subject of scientific scrutiny in recent years. Observations of a host-parasitoid interaction in the shrub's foliage, in which victims are significantly less motile than their exploiters, record stable spatial patterns in a fairly homogeneous environment.
arxiv
Global impacts of exotic eucalypt plantations on wildlife
Biological Reviews, EarlyView.ABSTRACT The establishment of exotic tree plantations poses a pervasive threat to wildlife across the globe. Among the most important tree species used for forestry purposes worldwide are members of the genus Eucalyptus, which have now been established in at least 107 countries outside of their native range.
Maider Iglesias‐Carrasco +5 more
wiley +1 more source