scholarly journals Macroscopic identification key of 36 Sphagnum species in eastern Canada

1997 ◽  
Author(s):  
D F Bastien ◽  
M Garneau
Keyword(s):  
Identification Key ◽  
Eastern Canada ◽  
Macroscopic Identification

Seasonal diving and foraging behaviour of Eastern Canada-West Greenland bowhead whales

2020 ◽  
Vol 643 ◽  
pp. 197-217 ◽  
Author(s):  
SME Fortune ◽  
SH Ferguson ◽  
AW Trites ◽  
B LeBlanc ◽  
V LeMay ◽  
...  
Keyword(s):  
Climate Change ◽  
Late Summer ◽  
Calanoid Copepods ◽  
Eastern Canada ◽  
West Greenland ◽  
Bowhead Whales ◽  
Seasonal Movement ◽  
Dive Behaviour ◽  
Calanus Glacialis ◽  
Canada West

Climate change may affect the foraging success of bowhead whales Balaena mysticetus by altering the diversity and abundance of zooplankton species available as food. However, assessing climate-induced impacts first requires documenting feeding conditions under current environmental conditions. We collected seasonal movement and dive-behaviour data from 25 Eastern Canada-West Greenland bowheads instrumented with time-depth telemetry tags and used state-space models to examine whale movements and dive behaviours. Zooplankton samples were also collected in Cumberland Sound (CS) to determine species composition and biomass. We found that CS was used seasonally by 14 of the 25 tagged whales. Area-restricted movement was the dominant behaviour in CS, suggesting that the tagged whales allocated considerable time to feeding. Prey sampling data suggested that bowheads were exploiting energy-rich Arctic copepods such as Calanus glacialis and C. hyperboreus during summer. Dive behaviour changed seasonally in CS. Most notably, probable feeding dives were substantially shallower during spring and summer compared to fall and winter. These seasonal changes in dive depths likely reflect changes in the vertical distribution of calanoid copepods, which are known to suspend development and overwinter at depth during fall and winter when availability of their phytoplankton prey is presumed to be lower. Overall, CS appears to be an important year-round foraging habitat for bowheads, but is particularly important during the late summer and fall. Whether CS will remain a reliable feeding area for bowhead whales under climate change is not yet known.

SPECIES, HOST RANGE, AND IDENTIFICATION KEY OF WHITEFLIES OF BOGOR AND SURROUNDING AREA

2019 ◽  
Vol 18 (2) ◽  
pp. 127
Author(s):  
Purnama Hidayat ◽  
Denny Bintoro ◽  
Lia Nurulalia ◽  
Muhammad Basri
Keyword(s):  
Host Range ◽  
Host Plants ◽  
Ornamental Plants ◽  
Identification Key ◽  
Agricultural Crops ◽  
Surrounding Area ◽  
Aleurodicus Dispersus ◽  
Agricultural Plants ◽  
Surrounding Areas ◽  
Forest Plants

Species identification, host range, and identification key of whiteflies of Bogor and surrounding area. Whitefly (Hemiptera: Aleyrodidae) is a group of insects that are small, white, soft-bodied, and easily found on various agricultural crops. Whitefly is a phytophagous insect; some species are important pests in agricultural crops that can cause direct damage and can become vectors of viral diseases. The last few years the damage caused by whitefly in Indonesia has increased. Unfortunately, information about their species and host plants in Indonesia, including in Bogor, is still limited. Kalshoven, in his book entitled Pest of Crops in Indonesia, published in the 1980s reported that there were 9 species of whitefly in Indonesia. The information on the book should be reconfirmed. Therefore, this study was conducted to determine whitefly species and its host plants in Bogor and its surroundings. Whiteflies is identified based on the ‘puparia’ (the last instar of the nymph) collected from various agricultural plants, ornamental plants, weeds, and forest plants. A total of 35 species of whiteflies were collected from 74 species and 29 families of plants. The collwcted whiteflies consist of four species belong to Subfamily Aleurodicinae and 31 species of Subfamily Aleyrodinae. The most often found whitefly species were Aleurodicus dispersus, A. dugesii, and Bemisia tabaci. A dichotomous identification key of whiteflies was completed based on morphological character of 35 collected species. The number of whitefly species in Bogor and surrounding areas were far exceeded the number of species reported previously by Kalshoven from all regions in Indonesia.

Crepis alpina en España. Crepis alpina in Spain

2013 ◽  
Vol 38 ◽  
pp. 229-231
Author(s):  
María Talavera Solís ◽  
Carlos Sánchez Casimiro-Soriguer ◽  
Salvador Talavera Lozano
Keyword(s):  
Iberian Peninsula ◽  
Key Words ◽  
Balearic Islands ◽  
Identification Key ◽  
New Combinations ◽  
Key Words Identification ◽  
Palabras Clave

Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands. Palabras clave. Clave de identificación, nomenclatura, tipificación, distribución, Crepis bermejana sp. nov., combinaciones nuevas. Key words. Identification key, nomenclature, chorology, typification, Crepis bermejana sp. nov., new combinations.

Crepis sect. Lepidoseris sensu Babcock en la Península Ibérica y Baleares. Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands

2013 ◽  
Vol 38 ◽  
pp. 231-240 ◽  
Author(s):  
María Talavera Solís ◽  
Carlos Sánchez Casimiro-Soriguer ◽  
Salvador Talavera Lozano
Keyword(s):  
Iberian Peninsula ◽  
Key Words ◽  
Balearic Islands ◽  
Identification Key ◽  
New Combinations ◽  
Key Words Identification ◽  
Palabras Clave ◽  
Península Ibérica

Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands. Palabras clave. Clave de identificación, nomenclatura, tipificación, distribución, Crepis bermejana sp. nov., combinaciones nuevas. Key words. Identification key, nomenclature, chorology, typification, Crepis bermejana sp. nov., new combinations.

Review of the genus Astragalus section Helmia (Fabaceae)

2019 ◽  
pp. 120-131
Author(s):  
M. S. Knyazev
Keyword(s):  
Identification Key ◽  
The Other ◽  
Taxonomic Review ◽  
Narrow Scope ◽  
A Priority ◽  
Astragalus Sect

A taxonomic review of species and intraspecific taxa of the Astragalus L. section Helmia Bunge is presented. We treat the section Helmia in a traditional, narrow scope, including only 9 species and subspecies: A. helmii Fisch. ex DC., A. tergeminus (Knjaz., Kulikov et E. G. Philippov) Knjaz., A. permiensis C. A. Mey. ex Rupr., A. depauperatus Ledeb. (= A. chakassiensis Polozhij), A. kasachstanicus Golosk. subsp. kasachstanicus, A. kasachstanicus subsp. coloratus Knjaz., A. gregorii B. Fedtsch. et Basil. (= A. tuvinicus Timokhina), A. heptapotamicus Sumnev., A. ionae Palib. ex Gontsch. et Popov. With regard to the other 16 species of sect. Helmia in its widest sense, as accepted in the monograph by D. Podlech and Sh. Zarre (2013), we believe it more correct to attribute them to other sections. The rank of A. helmii var. tergeminus Knjaz., Kulikov et E. G. Philippov is raised to the species, A. tergeminus (Knjaz., Kulikov et E. G. Philippov) Knjaz. It is shown that A. gregorii is a priority name of A. tuvinicus. The epitype of A. permiensis C. A. Mey. ex Rupr. is designated. An identification key and a map of distribution for all species and subspecies of Astragalus sect. Helmia are presented.

The first record of Gyalideopsis helvetica (Graphidaceae, lichenized Ascomycota) for Russia from the southern part of Lake Baikal Region

2015 ◽  
Vol 49 ◽  
pp. 282-288 ◽  
Author(s):  
I. N. Urbanavichene
Keyword(s):  
Lake Baikal ◽  
Baikal Region ◽  
First Record ◽  
Identification Key ◽  
Lake Baikal Region ◽  
First Time

Until recently only two species of Gyalideopsis (G. piceicola and G. alnicola) were known from very few localities in Russia. Gyalideopsis helvetica is reported for the first time for Russia from the southern part of Baikal area (KhamarDaban Range, Baikalsky Zapovednik). Description of the collected specimen and its comparison with the literature data are provided; morphology, ecology and distribution of G. helvetica are discussed. The hyphophores of G. helvetica are recorded and described for the first time. An identification key to Gyalideopsis species known in Russia is provided.

Millennial zoological mystery of medieval Persian scientists

2019 ◽  
Vol 28 (2) ◽  
pp. 201-227
Author(s):  
I.A. Gavrilov-Zimin ◽  
A.S. Kurochkin
Keyword(s):  
Central Asia ◽  
Identification Key ◽  
Native People ◽  
Scale Insects ◽  
Southern Iran ◽  
Biological Characters ◽  
Medieval Text ◽  
Red Dye ◽  
First Time ◽  
Salix Spp

Great medieval scientist-polymath Abu Rayhan Al-Beruni (973–1050) wrote in his book “Pharmacognosy” about some kind of “worms” inhabiting willows in Azerbaijan and Southern Iran and used by native people for producing of a red dye. It was unclear during one thousand years which organisms Al-Beruni noted as those dye-producing “worms”. Some modern authors even suggested that the relevant medieval text was partly erroneous. To the contrary, in the present paper we, for the first time, consider some species of the felt scale insects (Coccinea: Eriococcidae) as the organisms, which have probably been used for the production of the red dye in the medieval countries of Western and Central Asia. These insects are several species from two closely related genera Acanthococcus Signoret, 1875 and Gossyparia Signo­ret, 1875. The review of biological characters, identification key, new figures and colour photographs are provided for the species of Acanthococcus and Gossyparia associated with Salix spp. in the Asiatic Region. Acanthococcus turanicus Matesova, 1967, syn. nov. is placed in synonymy with A. salicis (Borchsenius, 1938), and A. altaicus Matesova, 1967, syn. nov. is placed in synonymy with A. spiraeae Borchsenius, 1949. Earlier discovered synonymy of A. melnikensis (Hodgson et Trencheva, 2008) with A. aceris Signoret, 1875 is discussed. Some other dye-producing scale insects and their pigments are also briefly considered.

A new species of Platymystax (Hymenoptera: Ichneumonidae: Cryptinae: Hemigasterini) from Mexico

2017 ◽  
Vol 26 (2) ◽  
pp. 282-286
Author(s):  
D.R. Kasparyan ◽  
M. López-Ortega
Keyword(s):  
New Species ◽  
New World ◽  
Identification Key ◽  
Preliminary Identification ◽  
Mexican State ◽  
The World ◽  
A New Species ◽  
World Fauna

A new species of the tribe Hemigasterini, Platymystax xalapa sp. nov., is described from the Mexican State of Veracruz. It is the first species of the genus described from the New World. A preliminary identification key to all known seven species of Platymystax of the world fauna is provided.

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