The Bionomics of the Lesser Bulb Flies, Eumerus strigatus, Flyn., and Eumerus tuberculatus, Rond., in South–west England

1927 ◽  
Vol 17 (4) ◽  
pp. 373-384 ◽  
Author(s):  
W. E. H. Hodson
Keyword(s):  
Great Britain ◽  
North America ◽  
Host Plants ◽  
Plant Pests ◽  
South West ◽  
The Family ◽  
Type Of Injury ◽  
South West England

The larvae of certain flies belonging to the family Syrphidae have long been recognised as plant pests. Merodon equestris, Fab., was recorded in Great Britain as far back as 1869, having probably been imported in narcissus bulbs from Holland (Verrall). This fly is now universally known as the “ Large Narcissus Fly,” the larvae causing serious losses in nearly every locality where the narcissus is grown commercially. More recently flies of the genus Eumerus have been associated with a type of injury very similar to that caused by the larger fly, and the larvae have been recorded on a variety of host-plants in Europe and America. Chief among these hosts may be included narcissus, onion, hyacinth, parsnip, iris, and potato. The flies are commonly referred to as “ Lesser Bulb Flies ” or alternatively in some parts of North America, where they were first recorded as European introductions in 1904, as “ Lunate Onion Flies.”

scholarly journals CASE HISTORIES OF TWO ESTUARIES

1968 ◽  
Vol 1 (11) ◽  
pp. 82
Author(s):  
C.H. Dobbie
Keyword(s):  
Great Britain ◽  
Case Histories ◽  
Littoral Drift ◽  
South West ◽  
Sand Spit ◽  
Tidal Estuaries ◽  
Moray Firth ◽  
South West England ◽  
Historical Detail

The coast of Great Britain has many interesting examples of the interaction between tidal estuaries of rivers and the littoral drift of the coast. These have been described with historical detail mainly by geographers (ref.l). Two cases coming to the author's firm for action have interest for coastal engineers. For the River Spey m the Moray Firth of Scotland, a famous and vigorous river, unusual works have been undertaken with success. For Dawlish Warren, a sand spit m the Exe Estuary of Devon m South West England, a scheme of works is being prepared which has novelty in regard to British practices.

The composition and distribution of nodular monazite in the Lower Palaeozoic rocks of Great Britain

1987 ◽  
Vol 51 (360) ◽  
pp. 271-280 ◽  
Author(s):  
D. Read ◽  
D. C. Cooper ◽  
J. M. McArthur
Keyword(s):  
Great Britain ◽  
Host Rock ◽  
Sedimentary Rock ◽  
Sedimentary Rocks ◽  
Source Rocks ◽  
Low Grade ◽  
South West ◽  
Lower Palaeozoic ◽  
South West England

AbstractMillimetric, ellipsoidal monazite nodules found within Lower Palaeozoic sedimentary rocks in Wales, south-west England and Brittany are characterised by a pronounced zonation of light and heavy REE, an inclusion fabric of low-grade metamorphic minerals indistinguishable from the host rock and a low Th content. They are interpreted as the product of in situ recrystallization of detrital monazites derived from pegmatitic or granitic source rocks and are potentially useful as indicators of Lower Palaeozoic sedimentary rock provenance.

The Ward family of taxidermists

2018 ◽  
Vol 45 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Christine E. Jackson
Keyword(s):  
Great Britain ◽  
North America ◽  
Three Generations ◽  
John James Audubon ◽  
The Family

Three generations of Ward taxidermists practised their craft both in Britain and abroad. The grandfather, John, had a daughter Jane Catherine, and two sons, James Frederick and Edwin Henry, both of whom went to North America to collect birds (Henry with John James Audubon). Edwin Henry's own two sons, Edwin and Rowland, became two of the best known taxidermists in Great Britain. Edwin emigrated to California, where he taught his skills to his three sons. Rowland was the most famous, successful and wealthy member of the family, becoming world-renowned as a taxidermist.

scholarly journals Faith, Families, and Rebellion in Sixteenth-Century South-West England

2008 ◽  
Vol 7 ◽  
Author(s):  
Pamela Stanton
Keyword(s):  
Sixteenth Century ◽  
Religious Change ◽  
English Reformation ◽  
The South ◽  
Government Officials ◽  
South West ◽  
The Family ◽  
New Perspective ◽  
Kinship Ties ◽  
South West England

The questioning of"the English Reformation" as both a definable entity and a usable term by revisionist scholars, provides a timely platform from which to engage in a re-examination of one event which occurred daring that period of profound religious change in sixteenth-century England. The 1549 rebellion in the south-west of England has been studied using 'traditional* analytical categories of religion, politics, economics, and militarism. However, a new perspective on the rebellion is possible when the kinship ties of a group of leading gentry families in the south-west are examined. Although some historians recognize the close relationships which existed within the group, the focus is on the men of the families as local government officials without placing them in the wider context of their families. A close examination of the connections between the Arundell, Edgecombe, and Grenville families reveals a confused genealogical picture; one that suggests, however, that close kinship ties may have played an important part in the participation or lack of involvement of the family members in the rebellion.

Adoption Policy in Great Britain and North America

1984 ◽  
Vol 13 (1) ◽  
pp. 75-84 ◽  
Author(s):  
H. David Kirk ◽  
Susan A. Mcdaniel
Keyword(s):  
Great Britain ◽  
North America ◽  
Policy Implications ◽  
Social Meaning ◽  
The Third ◽  
The Social ◽  
The Family ◽  
History Of ◽  
And Function ◽  
Meaning And Function

AbstractThis paper has two purposes. First, to explore what existing adoption legislation may indicate about the meaning and function of adoption practices in North America and Great Britain. Second, to consider some possible policy implications revealed by clearer understanding of the social meaning of existing adoption laws. The first part of the paper summarizes briefly the history of legal adoption. The second examines what is explicitly and implicitly revealed by adoption law and policies about the social purposes of adoption and about prevailing social values concerning the family. The third part examines possible avenues of policy change in North America.

scholarly journals Parasitoid Guilds ofAgrilusWoodborers (Coleoptera: Buprestidae): Their Diversity and Potential for Use in Biological Control

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Philip B. Taylor ◽  
Jian J. Duan ◽  
Roger W. Fuester ◽  
Mark Hoddle ◽  
Roy Van Driesche
Keyword(s):  
Biological Control ◽  
North America ◽  
Host Plants ◽  
Emerald Ash Borer ◽  
Agrilus Planipennis ◽  
Native Parasitoids ◽  
The Family ◽  
The Usa ◽  
Egg Parasitism ◽  
Hymenopteran Parasitoids

Literature studies in North America (US and Canada), Europe, and Asia (particularly Russia, China, Japan, and the Korean peninsula) were reviewed to identify parasitoid guilds associated withAgriluswoodborers. There are at least 12 species of hymenopteran parasitoids attacking eggs ofAgrilusbeetles and 56 species (36 genera), attackingAgriluslarvae infesting various host plants in North America, Asia, and Europe. While most of the egg parasitoids (9 species) belong to the family Encyrtidae, a majority of the larval parasitoids are members of five families: Braconidae (24 species/11 genera), Eulophidae (8 species/4 genera), Ichneumonidae (10 species/9 genera), and Eupelmidae (6 species/5 genera). The highest rate ofAgrilusegg parasitism (>50%) was exerted by encyrtid wasps (4 species) in North America, Asia, and Europe. In contrast, the highest rate ofAgriluslarval parasitism (>50%) was caused by species in two genera of braconids:Atanycolus(North America) andSpathius(Asia), and one eulophid genus,Tetrastichus(Asia and Europe). Reported rate ofAgriluslarval parasitism ichneumonids was frequent in North America, but generally low (<1%). Potential for success in biological control of emerald ash borer (Agrilus planipennisFairmaire) in the USA with North American native parasitoids and old-association Asian parasitoids is discussed.

Teloschistes Flavicans in Great Britain: Distribution and Ecology

1996 ◽  
Vol 28 (6) ◽  
pp. 493-506 ◽  
Author(s):  
O. L. Gilbert ◽  
O. W. Purvis
Keyword(s):  
Great Britain ◽  
The Other ◽  
England And Wales ◽  
South West ◽  
North Wales ◽  
Coastal Cliff ◽  
Southern Half ◽  
Distribution And Ecology ◽  
South West England

AbstractOver the last century, the distribution of Teloschistes flavicans has contracted from being widespread in the southern half of England and Wales to being limited to South-West England with outlying populations in Pembrokeshire and North Wales. Twelve core sites have been identified where the species is well established: ten of these are saxicolous/terricolous habitats on windy coastal cliff tops; the other two are lines of sycamore trees near the coast. At 39 further localities, some inland, the species is in very small amounts (often on one tree) and vulnerable to extinction. It is normally a member of the Parmelietum revolutae or Ramalinetum scopularis associations. The conservation of the species is discussed.

Lepidopteran Pests: Family Crambidae (Formerly Pyralidae), Subfamily Crambinae

2020 ◽  
pp. 107-126
Author(s):  
Patricia J. Vittum
Keyword(s):  
United States ◽  
North America ◽  
Host Plants ◽  
The United States ◽  
Tropical Region ◽  
Corn Root ◽  
Lepidopteran Pests ◽  
The Family

This chapter addresses sod webworms, which refers to a large number of grass-infesting moths and larvae of the family Crambidae (formerly Pyralidae), subfamily Crambinae. Adults are often called lawn moths because of their habitat or snout moths because of the prominent labial palpi that extend in front of the head. Most of the turfgrass-infesting species originally were placed in the genus Crambus, which is distributed practically worldwide. About 100 species are recognized in North America. The six most important sod webworm species in the eastern temperate regions of the United States include the bluegrass webworm; the striped sod webworm; the silver-striped webworm; the larger sod webworm; the corn root webworm; and the subterranean webworm, also known as the cranberry girdler. Sod webworms restrict their feeding, with rare exceptions, to plants of the family Gramineae, and turfgrasses serve as ideal host plants. The chapter then considers tropical-region sod webworms.

An environmental study of the Upper Domerian and Lower Toarcian in Great Britain

1967 ◽  
Vol 252 (778) ◽  
pp. 393-445 ◽  
Keyword(s):  
Great Britain ◽  
Environmental Study ◽  
Invertebrate Fauna ◽  
South West ◽  
Facies Associations ◽  
Local Topography ◽  
Shelf Sea ◽  
Shallow Seas ◽  
South West England

An integrated petrological and palaeoecological study has been undertaken of the Spinatum, Tenuicostatum and Falciferum zones of the Lias in all the major British sections. After a brief stratigraphical review the deposits are described systematically in terms of four regions, Yorkshire, the Midlands, south-west England and the Inner Hebrides. The Spinatum Zone consists of a series of ironstones, bioclastic limestones and fine sandstones with a rich and diverse fauna dominated by brachiopods, bivalves and belemnites. The Tenuicostatum Zone , thin or absent in most areas, tends to be finer grained and more argillaceous, with a fauna related to that of the underlying beds. The Falciferum Zone is characterized especially by the extremely widespread development of laminated bituminous shales with an impoverished invertebrate fauna. A brief world stratigraphical review leads to the conclusion that there was a notable eustatic rise of sea level in the early part of the Toarcian. The British deposits are considered to have been laid down in a very shallow shelf sea in an area of great tectonic stability and very slight relief. Within this context, the facies was controlled primarily by rates of deposition and subsidence, local topography, liability to wave action and proximity of rivers. The early Toarcian transgression, following a late Domerian regression, had the effect of inducing widespread stagnation below wave base, until the sea had deepened sufficiently in mid Toarcian times to allow freer circulation. Four different facies associations in the fauna can be distinguished and related to environmental conditions. The development of faunal provinces among the later Domerian ammonites and brachiopods and some extinction is attributed to the existence of extremely shallow seas extensively broken up by newly emergent land. The widespread phase of bottom stagnation in the Falciferum Zone led to extinction of most of the benthos, so that the overlying beds contain a substantially new fauna, with Middle Jurassic affinities.

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