Search Constraints
Search Results
-
Journal article
Biological and morphological studies on the parasitoids (Hymenoptera, Ichneumonidae) of Aprosthema tardum (Klug) (Hymenoptera, Argidae, Sterictiphorinae) in Var, southern France
Field surveys at four neighbouring but discrete sites in southern France revealed the presence of five ichneumonid parasitoids of the -feeding sterictiphorine argid sawfly . Four of these parasitoids, , (both Ctenopelmatinae), and (both Tryphoninae), could be identified and, by also incorporating laboratory studies, the developmental biology of each was... -
Journal article
Identity of wasp parasitoids (Hymenoptera) attacking Pieris brassicae (Linnaeus, 1758) (Lepidoptera: Pieridae) in South Africa
The alien invasive large cabbage white, Pieris brassicae (Linnaeus, 1758) (Pieridae), although introduced into South Africa more than 27 years ago, has not dramatically expanded its distribution, possibly because it is effectively attacked by two parasitoid wasp species. Even though there is a cohort of parasitoid species associated with P.... -
Journal article
Larval parasitism in a specialist herbivore is explained by phenological synchrony and host plant availability
Parasitism is a key factor in the population dynamics of many herbivorous insects, although its impact on host populations varies widely, for instance, along latitudinal and altitudinal gradients. Understanding the sources of geographical variation in host–parasitoid interactions is crucial for reliably predicting the future success of the interacting species under...Stefanescu, Constantí ; Colom, Pau ; Barea‐Azcón, José Miguel ; Horsfield, David ; Komac, Benjamin …
-
Journal article
Edmund Jarzembowski at 70: An appreciation
Edmund Aleksander Jarzembowski (BSc PhD FGS FRES) is currently a Leverhulme Emeritus Fellow; Scientific Associate (researcher) at The Natural History Museum London (NHMUK); and Professor at the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (NIGPAS), Nanjing, specializing in the study of fossil insects (palaeoentomology).Austen, Peter A ; Wang, Bo ; Ross, Andrew J ; Coram, Robert A
-
Journal article
Early Eocene fossil illuminates the ancestral (diurnal) ecomorphology of owls and documents a mosaic evolution of the strigiform body plan
We describe a partial skeleton of a fossil owl (Strigiformes) from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK). The holotype of Ypresiglaux michaeldanielsi, gen. et sp. nov. is one of the most complete specimens of a Palaeogene owl and elucidates the poorly known ecomorphology of stem group Strigiformes....Mayr, Gerald ; Kitchener, Andrew C
-
Journal article
Oldest fossil loon documents a pronounced ecomorphological shift in the evolution of gaviiform birds
We describe a stem group representative of Gaviiformes (loons or divers) from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK). The holotype of Nasidytes ypresianus gen. et sp. nov. is a partial skeleton including the mandible and all major limb bones. The new species is the oldest unambiguously identified...Mayr, Gerald ; Kitchener, Andrew C
Nasidytes ypresianus, Walton-on-the-Naze, Aves, fossil birds, and London Clay
-
Journal article
New fossils from the London Clay show that the Eocene Masillaraptoridae are stem group representatives of falcons (Aves, Falconiformes)
The Eocene taxon Masillaraptoridae includes long-legged, raptorial birds, the phylogenetic affinities of which are poorly resolved. Here, fossils from the London Clay of Walton-on-the-Naze (Essex, U.K.) are described, which corroborate the hypothesis that masillaraptorids are stem group representatives of the Falconiformes (falcons). Two partial skeletons are assigned to a new...Mayr, Gerald ; Kitchener, Andrew C
-
Journal article
Evolution: The origin of insect wings revisited
The evolution of wings and flight was key for the rise of insects. A new study finds that lateral extensions on the abdominal segments of primitive insect nymphs are the serial homologues of wings and probably helped control gliding.Ross, Andrew J
-
Journal article
Middle Jurassic fossils document an early stage in salamander evolution
Salamanders are an important group of living amphibians and model organisms for understanding locomotion, development, regeneration, feeding, and toxicity in tetrapods. However, their origin and early radiation remain poorly understood, with early fossil stem-salamanders so far represented by larval or incompletely known taxa. This poor record also limits understanding of...Jones, Marc E H ; Benson, Roger B J ; Skutschas, Pavel ; Hill, Lucy ; Panciroli, Elsa …
AMPHIBIANS , PHYLOGENY , JURASSIC , SALAMANDER, and EVOLUTION
-
Journal article
Signatures of increasing environmental stress in bumblebee wings over the past century: Insights from museum specimens
Determining when animal populations have experienced stress in the past is fundamental to understanding how risk factors drive contemporary and future species' responses to environmental change. For insects, quantifying stress and associating it with environmental factors has been challenging due to a paucity of time-series data and because detectable population-level...