Normal antibodies during regeneration in invertebrate animals

1961 ◽  
Vol 51 (2) ◽  
pp. 226-228 ◽  
Author(s):  
O. E. Vyazov ◽  
A. I. Murashova
Keyword(s):  
Invertebrate Animals ◽  
Normal Antibodies

Accumulation of microelements by different invertebrate trophic groups on wasted lands

2017 ◽  
Vol 7 (4) ◽  
pp. 30-34 ◽  
Author(s):  
O. A. Didur ◽  
Yu. L. Kulbachko ◽  
V. Y. Gasso
Keyword(s):  
Active Agent ◽  
Dry Weight ◽  
Nature Management ◽  
Habitat Transformation ◽  
Natural Landscapes ◽  
Invertebrate Animals ◽  
Risk Of Disease ◽  
Ore Dressing ◽  
Processing Enterprise

<p>The problem of transformation of natural landscapes resulted from the negative technogenic impact is highlighted. It is shown that mining enterprises are powerful anthropo-technical sources of organic and inorganic toxicants entering the environment. Their wastes pollute all components of the ecosystems and negatively influence human health by increasing a risk of disease. The nature of the accumulation of trace elements (Fe, Cu, Zn, Ni, Cd, and Pb) by invertebrate animals of various functional groups under conditions of anthropo-technogenic pressure was studied. The sample plots were located on self-overgrowing sites with ruderal vegetation located in the immediate vicinity of the Mangan ore-dressing and processing enterprise (Dnipropetrovsk region). It is quite naturally that among the studied biogenic microelements (Fe, Cu, Zn and Ni), the phyto-, zoo-, and saprophages in the investigated zone of technogenic pollution most actively accumulate Fe:<em> </em>22758, 17516 and 18884 mg/kg dry weight on average, respectively. There are significant differences (p ≤ 0.05) in the content of studied microelements between saprophages and phytophages. The saprophages accumulate such trace metals as Mn, Cu, Zn and Cd in high quantities, but Ni and Pb – in smaller ones. The saprophagous functional group of invertebrates is an active agent of detritogenesis, in the conditions of modern nature management it acts as a powerful element of ecosystem engineering (habitat transformation), the main ecological role of which is to modify the habitat of other soil biota. In addition, the saprophages fulfil their concentrating geochemical function. They actively participate in the most important soil biochemical process: the formation of humus, the migration of microelements along trophic chains, the biological cycle in general, and provide such supporting ecosystem services as increasing soil fertility and nutrient cycling.</p>

scholarly journals Lessons from the study of plant mating systems for exploring the causes and consequences of inbreeding in marine invertebrates

2021 ◽  
Vol 168 (3) ◽  
Author(s):  
Kevin C. Olsen ◽  
Will H. Ryan ◽  
Ellen T. Kosman ◽  
Jose A. Moscoso ◽  
Don R. Levitan ◽  
...  
Keyword(s):  
Mating Systems ◽  
Marine Invertebrates ◽  
Reproductive Traits ◽  
Theory And Practice ◽  
Costs And Benefits ◽  
Life History Variation ◽  
Invertebrate Animals ◽  
Plant Mating Systems ◽  
Critical Insight ◽  
Insight Into

AbstractMany benthic marine invertebrates resemble plants in being modular and either sessile or sedentary, and by relying on an external vector to disperse their gametes. These shared features, along with recent evidence of inbreeding in these taxa, suggest that theory and practice bearing on the evolutionary costs and benefits of inbreeding for plants could advance our understanding of the ecology and evolution of invertebrate animals. We describe how the theory for the evolution of inbreeding and outbreeding could apply to benthic invertebrates, identify and compare techniques used to quantify inbreeding in plants and animals, translate relevant botanical concepts and empirical patterns to their zoological equivalents, and articulate predictions for how inbreeding might be associated with major axes of variation in sessile and sedentary marine invertebrates. The theory of inbreeding and outbreeding provides critical insight into major patterns of life-history variation in plants and holds similar promise as a complementary perspective on the evolution of reproductive traits, lifespan, ecological strategies, and dispersal in marine invertebrates. Extending what we have learned from plants to marine invertebrates promises to broaden the general study of mating systems.

Taxonomic concepts and superfluity in bivalve nomenclature

1978 ◽  
Vol 284 (1001) ◽  
pp. 417-424 ◽  
Keyword(s):  
Fossil Record ◽  
Anatomical Reconstruction ◽  
Occam’S Razor ◽  
Human Tendency ◽  
Invertebrate Animals ◽  
Higher Categories ◽  
Occam's Razor

Among the classes of invertebrate animals, the Bivalvia, with its extremely long fossil record and its preserved characters, which permit inferential anatomical reconstruction, comprises a group especially fit for phyletic analysis. Ideal for the investigation of the dynamics of speciation and the evolution of higher categories, bivalves represent a taxonomic unit whose systematics suffer from certain weaknesses. The relative narrowness of the anagenetic distances between lineages and the all-too-human tendency both to proliferate nomina and to elevate taxa partially obfuscate reality. The taxonomy of the Bivalvia is threatened by a cloying nomenclature both at specific and higher categorical levels. Reappraisal of various, recently proposed, systematic arrangements and judicious application of Occam’s Razor may allay the malaise of superfluity and promise the elaboration of a phyletically meaningful but somewhat simplified, utilitarian classification.

scholarly journals The degree analysis of hydrobionts response to the content of chemicals in the water of the upper and middle reaches of the Belaya River (Republic of Bashkortostan)

2018 ◽  
Vol 7 (4) ◽  
pp. 144-152
Author(s):  
Boris Yuryevich Chaus
Keyword(s):  
Natural Waters ◽  
Anthropogenic Pollution ◽  
Hydrochemical Parameters ◽  
Republic Of Bashkortostan ◽  
Invertebrate Animals ◽  
State Water ◽  
The Republic ◽  
First Time ◽  
Reliable Correlation ◽  
Water Vegetation

The paper deals with the analysis of bioindicator opportunities of hydrobionts of various systematic categories that helps to assess and forecast anthropogenic pollution of the Belaya River (the top and average currents) during environmental monitoring of natural waters of the Republic of Bashkortostan. Hydrobionts were collected and the occurrence analysis (in unit shares) of 30 species of invertebrate animals from groups Pyramidelloida, Littorinimorpha, Pulmonata, Plecoptera, Ephemeroptera, Trichoptera and 12 species of the highest water vegetation was carried out from 2005 to 2017 in regions of 10 state water posts on the Belaya River. The data from annual State reports on the average annual content of compounds of manganese, nickel and iron, oil products, phenols, nitrogen ammoniyny, copper and zincum were used as hydrochemical parameters during the research. The reliable correlation between some water organisms with chemicals and their connections was defined in the water of the Belaya River. The author also constructs for the first time an indicator range of hydrobionts on decrease extent in their response to the chemicals content in the studied water. Similar approach can be used for recommendations development about the use of biological analyses while identifying the chemicals influencing water fauna and flora.

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