Theory, Practice, and Effects of Mysis relicta Introductions to North American and Scandinavian Lakes

1986 ◽  
Vol 43 (6) ◽  
pp. 1277-1284 ◽  
Author(s):  
D. C. Lasenby ◽  
T. G. Northcote ◽  
M. Fürst
Keyword(s):  
North America ◽  
Introduced Species ◽  
Food Source ◽  
Benthic Organism ◽  
Natural Distribution ◽  
Mysis Relicta ◽  
Supplementary Food ◽  
Introduced Populations ◽  
Original Concept ◽  
Profundal Zone

Fisheries biologists have greatly altered the natural distribution of the crustacean Mysis relicta by introducing it into many lakes in both North America and Scandinavia to serve as a supplementary food source for fish. The original concept of Mysis as a deepwater benthic organism which remains isolated in the profundal zone of lakes needs to be modified to include its downstream dispersal capabilities. After introduction to a lake, Mysis will probably eventually reach all lakes in the downstream watershed. Recent studies indicate that rates of increase of introduced Mysis populations probably depend on available food and temperature. As well, introduced populations have been shown to modify benthic, phytoplankton, zooplankton, and fish communities. Most Mysis introductions have taken place without consideration of general criteria suggested for introduced species.

scholarly journals Feasibility of planctomycetes as a nutritional or supplementary food source forDaphniaspp

2016 ◽  
Vol 52 ◽  
pp. 317-325 ◽  
Author(s):  
S. C. Antunes ◽  
R. A. Almeida ◽  
T. Carvalho ◽  
O. M. Lage
Keyword(s):  
Food Source ◽  
Supplementary Food

scholarly journals Diplazium esculentum (vegetable fern).

2020 ◽  
Author(s):  
Jeanine Vélez-Gavilán
Keyword(s):  
New Zealand ◽  
North America ◽  
Food Source ◽  
Average Rate ◽  
Rate Of Spread

Abstract Diplazium esculentum is a herbaceous fern native to Asia. It has been introduced into a number of countries in Africa, Oceania and North America as an ornamental and as a food source. As it produces a large number of spores it can easily escape cultivation and rapidly spread into new areas. The species is reported as having escaped cultivation and become invasive in Hawaii, USA, New Zealand and Australia. In Hawaii, D. esculentum grows abundantly in wet valleys and in sheltered moist areas at dry sites. It is also a frequent volunteer in gardens. In New Zealand it has escaped from cultivation, spreading rapidly and aggressively in riverbanks at an average rate of spread of 1 m per year. In Australia the species is widely cultivated for food and as an ornamental, naturalising in swampy areas of Queensland. Its impacts on other habitats or species are unknown.

scholarly journals Introduced delicacy or native species? A natural origin of Bermudian terrapins supported by fossil and genetic data

2008 ◽  
Vol 4 (2) ◽  
pp. 216-219 ◽  
Author(s):  
James F Parham ◽  
Mark E Outerbridge ◽  
Bryan L Stuart ◽  
David B Wingate ◽  
Helmut Erlenkeuser ◽  
...  
Keyword(s):  
Native Species ◽  
Genetic Data ◽  
Oceanic Islands ◽  
Invasive Pest ◽  
Diamondback Terrapin ◽  
Malaclemys Terrapin ◽  
Natural Distribution ◽  
Naturally Occurring ◽  
Introduced Populations ◽  
Marine Reptile

Humans have greatly altered the natural distribution of species, making it difficult to distinguish between natural and introduced populations. This is a problem for conservation efforts because native or introduced status can determine whether a species is afforded protection or persecuted as an invasive pest. Holocene colonization events are especially difficult to discern, particularly when the species in question is a naturally good disperser and widely transported by people. In this study, we test the origin of such a species, the diamondback terrapin ( Malaclemys terrapin ), on Bermuda using a combination of palaeontologic (fossil, radiometric and palaeoenvironmental) and genetic data. These lines of evidence support the hypothesis that terrapins are relatively recent (between 3000 and 400 years ago) natural colonizers of Bermuda. The tiny population of Bermudian terrapins represents the second naturally occurring non-marine reptile that still survives on one of the most densely populated and heavily developed oceanic islands in the world. We recommend that they should be given protection as a native species.

scholarly journals Nomenclatural changes in North American Phymatodes Mulsant (Coleoptera: Cerambycidae)

Zootaxa ◽  
2010 ◽  
Vol 2448 (1) ◽  
pp. 35 ◽  
Author(s):  
IAN P. SWIFT ◽  
ANN M. RAY
Keyword(s):  
North America ◽  
Introduced Species ◽  
North American ◽  
North American Species ◽  
Species Status ◽  
Full Species

The following nomenclatural changes to the genus Phymatodes Mulsant, 1839 are proposed: P. juglandis Leng, 1890 = P. decussatus (LeConte, 1857); P. mohavensis Linsley and Chemsak, 1963 = P. nitidus LeConte, 1874; P. lecontei Linsley, 1938 (a replacement name) = P. grandis Casey, 1912; P. oregonensis Chemsak, 1963 = P. nigrescens Hardy and Preece, 1927; P. blandus picipes Linsley, 1934 and P. blandus propinquus Linsley, 1934 = P. blandus (LeConte, 1859); P. hirtellus densipennis Casey, 1912 and P. ursae Knull, 1940 = P. hirtellus (LeConte, 1873); P. decussatus australis Chemsak, 1963 and P. decussatus posticus Van Dyke, 1920 = P. obliquus Casey, 1891; P. frosti Casey, 1924, a valid name which has not previously been mentioned in the literature = P. dimidiatus (Kirby in Richardson, 1837); P. concolor Linsley, 1934 is afforded full species status; P. lividus (Rossi, 1794) is formally recorded as established in North America. A key and diagnoses for all native and introduced North American species are provided, which include the more recently described species, P. tysoni Linsley and Chemsak, 1984, and P. shareeae Cope, 1984, in addition to the introduced species P. lividus.

Sitka spruce (Picea sitchensis) in North America with special reference to its role in British forestry

1987 ◽  
Vol 93 (1-2) ◽  
pp. 1-12 ◽  
Author(s):  
L. Roche ◽  
P. G. Haddock
Keyword(s):  
Genetic Variation ◽  
North America ◽  
Special Reference ◽  
Picea Glauca ◽  
Natural Habitat ◽  
Sitka Spruce ◽  
Picea Sitchensis ◽  
Natural Distribution ◽  
Queen Charlotte Islands ◽  
Genetic Potential

SynopsisThe natural distribution of Sitka spruce is examined in relation to the species' role in British forestry. Particular attention is therefore given to a description of habitats on the Queen Charlotte Islands, and also on the adjacent mainland of British Columbia where Sitka spruce is sympatric with white spruce (Picea glauca) and hybridisation occurs. Examples of genetic variation are given and it is suggested that a knowledge of the genecologv of the species in its natural habitat would help to elucidate its full ecological and genetic potential in Britain.

The 12 Mile Creek Site: A Reinvestigation

1984 ◽  
Vol 49 (4) ◽  
pp. 757-764 ◽  
Author(s):  
Richard A. Rogers ◽  
Larry D. Martin
Keyword(s):  
North America ◽  
Pollen Analysis ◽  
Projectile Point ◽  
Radiocarbon Dates ◽  
Scientific Personnel ◽  
Kill Site ◽  
Original Concept

The 12 Mile Creek site in western Kansas was the first site yielding a fluted projectile point to be excavated in North America by scientific personnel. The Bison from this kill site were used in forming the original concept of B. occidentalis. A new study of the site including radiocarbon dates and a pollen analysis suggests the kill took place in a pine parkland about 10,300 years ago. The artifact from this site reported by Williston seems to be a Clovis projectile point.

Non-target Gelechiidae and Noctuidae attraction to Aroga trialbamaculella (Lepidoptera: Gelechiidae) pheromone-based trapping systems

2013 ◽  
Vol 145 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Jillian A. Kelly ◽  
Trevor S. Avery ◽  
Donald T. Stewart ◽  
Christopher G. Cutler ◽  
Sonia O. Gaul ◽  
...  
Keyword(s):  
Nova Scotia ◽  
North America ◽  
Introduced Species ◽  
Previous Record ◽  
Lepidoptera Noctuidae ◽  
Magdalen Islands

AbstractCucullia umbratica Linnaeus (Lepidoptera: Noctuidae), Agnippe prunifoliella Chambers (Lepidoptera: Gelechiidae), and Bryotropha plantariella Tengstrom (Lepidoptera: Gelechiidae), were significant bycatch in pheromone-based trapping systems for red-striped fireworm, Aroga trialbamaculella Chambers (Lepidoptera: Gelechiidae), in Nova Scotia, Canada. Cucullia umbratica is a European introduced species and a new macrolepidopteran recorded in continental Canada. The only previous record of this moth in North America was from the Magdalen Islands (Québec, Canada). Potential attractants for B. plantariella, A. prunifoliella, and C. umbratica are a result of this bycatch investigation.

The Relict Fauna of Greiner Lake, Victoria Island, N.W.T., Canada

1962 ◽  
Vol 19 (6) ◽  
pp. 1105-1120 ◽  
Author(s):  
Lionel Johnson
Keyword(s):  
North America ◽  
Sea Level ◽  
Lake Water ◽  
New Record ◽  
Lake Victoria ◽  
Summer Temperature ◽  
Mysis Relicta ◽  
Limnocalanus Macrurus ◽  
Victoria Island ◽  
Saduria Entomon

A survey of Greiner Lake in Victoria Island revealed the presence there of four species usually considered to be 'relicts' of marine or glacial events. The species are: Mysis relicta, Limnocalanus macrurus, Gammaracanthus loricatus aestuariorum and Mesidothea (Saduria) entomon. M. entomon is a new record for fresh waters isolated from contact with the sea in North America and G. loricatus aestuariorum is a new record for this region. Greiner Lake (15 m above sea level) is in an area that has risen from the sea within the last 1,300 years. It has a maximum depth of 11 m and a maximum summer temperature of approximately 8 °C. An analysis of the lake water is given and also a brief account of other species present. Possible methods for the arrival of the relicts in Victoria Island are discussed.

scholarly journals Immigrant Tortricidae: Holarctic versus Introduced Species in North America

Insects ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 594
Author(s):  
Todd M. Gilligan ◽  
John W. Brown ◽  
Joaquín Baixeras
Keyword(s):  
North America ◽  
Introduced Species ◽  
Host Plants ◽  
New Genus ◽  
Dna Barcodes ◽  
Species Status ◽  
Closely Related Species ◽  
The Past ◽  
The Status ◽  
Taxonomic Changes

In support of a comprehensive update to the checklist of the moths of North America, we attempt to determine the status of 151 species of Tortricidae present in North America that may be Holarctic, introduced, or sibling species of their European counterparts. Discovering the natural distributions of these taxa is often difficult, if not impossible, but several criteria can be applied to determine if a species that is present in both Europe and North America is natively Holarctic, introduced, or represented by different but closely related species on each continent. We use DNA barcodes (when available), morphology, host plants, and historical records (literature and museum specimens) to make these assessments and propose several taxonomic changes, as well as future areas of research. The following taxa are raised from synonymy to species status: Acleris ferrumixtana (Benander, 1934), stat. rev.; Acleris viburnana (Clemens, 1860), stat. rev.; Acleris pulverosana (Walker, 1863), stat. rev.; Acleris placidana (Robinson, 1869), stat. rev.; Lobesia spiraeae (McDunnough, 1938), stat. rev.; and Epiblema arctica Miller, 1985, stat. rev. Cydia saltitans (Westwood, 1858), stat. rev., is determined to be the valid name for the “jumping bean moth,” and Phiaris glaciana (Möschler, 1860), comb. n., is placed in a new genus. We determine that the number of Holarctic species has been overestimated by at least 20% in the past, and that the overall number of introduced species in North America is unexpectedly high, with Tortricidae accounting for approximately 23–30% of the total number of Lepidoptera species introduced to North America.

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