Factors affecting terrestrial invertebrate diversity in bioretention basins in an Australian urban environment

Stream and terrestrial ecosystems are intimately connected by riparian zones that support high biodiversity but are also vulnerable to human impacts. Landscape disturbances, overgrazing, and diffuse pollution of agrochemicals threaten riparian biodiversity and the delivery of ecosystem services in agricultural landscapes. We assessed how terrestrial invertebrate communities respond to changes in riparian vegetation in Romanian agricultural catchments, with a focus on the role of forested riparian buffers. Riparian invertebrates were sampled in 10 paired sites, with each pair consisting of an unbuffered upstream reach and a downstream reach buffered with woody riparian vegetation. Our results revealed distinct invertebrate community structures in the two site types. Out of 33 invertebrate families, 13 were unique to either forested (6) or unbuffered (7) sites. Thomisidae, Clubionidae, Tetragnathidae, Curculionidae, Culicidae, and Cicadidae were associated with forested buffers, while Lycosidae, Chrysomelidae, Staphylinidae, Coccinellidae, Tettigoniidae, Formicidae, and Eutichuridae were more abundant in unbuffered sites. Despite statistically equivocal results, invertebrate diversity was generally higher in forested riparian buffers. Local riparian attributes significantly influenced patterns in invertebrate community composition. Our findings highlight the importance of local woody riparian buffers in maintaining terrestrial invertebrate diversity and their potential contribution as a multifunctional management tool in agricultural landscapes.

Download Full-text

Factors affecting nest-site selection of Sabine's Gulls in the eastern Canadian Arctic

Canadian Journal of Zoology ◽

10.1139/z05-107 ◽

2005 ◽

Vol 83 (9) ◽

pp. 1240-1245 ◽

Cited By ~ 8

Author(s):

Iain J Stenhouse ◽

H Grant Gilchrist ◽

William A Montevecchi

Keyword(s):

Site Selection ◽

Nest Site ◽

Nest Site Selection ◽

Breeding Habitat ◽

Factors Affecting ◽

Invertebrate Prey ◽

Terrestrial Invertebrate ◽

Individual Fitness ◽

Sabine’S Gull ◽

Selection Of

The selection of breeding habitat is of prime importance for individual fitness. Among birds, natural selection should favour the ability to recognize and select habitat suitable for nesting and rearing chicks. This study compares the characteristics of Sabine's Gull, Xema sabini (Sabine, 1819), nest sites with random points across a coastal tundra environment on Southampton Island, Nunavut, Canada. The availability of terrestrial invertebrate prey was also examined among habitats. Sabine's Gull nests were nonrandomly distributed in relation to vegetation, substrate, and proximity to water. Gulls nested within approximately 1 km of the coastline and selected sites with the greatest proportions of moss and standing water (i.e., they nested close to the edge of small freshwater ponds near shore). However, there were no detectable differences in characteristics between successful and unsuccessful nests within preferred habitat. The dynamics of terrestrial invertebrate prey communities varied between years, but the volume of invertebrates in Sabine's Gull nesting habitat was intermediate between the most productive habitats and the least productive habitats in both years. However, nest-site selection in Sabine's Gulls may also be influenced by the availability of aquatic invertebrates (not examined in this study) and their proximity to the marine coastline, where chicks are taken to be reared.

Download Full-text

FEATURES OF ASSESSMENT OF ANTHROPOGENIC LOADS ON NATURAL COMPLEXES

Construction Materials and Products ◽

10.34031/2618-7183-2019-2-5-19-24 ◽

2020 ◽

Vol 2 (5) ◽

pp. 19-24

Author(s):

P. Evdokimov

Keyword(s):

Urban Environment ◽

Urban Areas ◽

Anthropogenic Impact ◽

Urban Environments ◽

Anthropogenic Factors ◽

Factors Affecting ◽

Main Research ◽

Regulatory Documents ◽

Dialectical Approach ◽

The Impact

the article describes the problems of assessing the anthropogenic impact of human activity on natural com-plexes surrounding urbanized territories. Among the main research tasks are development of methodological foundations for assessing the quanti-tative and qualitative composition at anthropogenic impact on natural complexes surrounding urban areas. The main method of this research include a dialectical approach that focuses on generally accepted logi-cal research methods (analysis, systematic approach, generalization) and their synthesis using relevant in-formation materials. The author considered various methods of assessing the impact of various factors on the environment, and also carried out the examination of urban decisions related to the appointment of a category (status) the natural resources included in the urban environment in Moscow. The Russian capital is a European metropolis, the largest city-millionaire in Europe and a typical object of research to identify the effects of various anthropogenic factors. The implementation at economic activity in the metropolis is accompanied by the emergence of problems, the solution of which has not been found yet. Analysis of methods for assessing the impact at the various factors on the environment was carried out taking into account the provisions in regulatory documents governing the appointment for protected areas urban environment. Provisions of regulatory documents and decisions of executive authorities designed to use natural (forest) resources in urban environments. The absence of approved methods for assessing certain types of land plots with a protected status was identified. The main factors affecting the quality of biogeocenosis were identified. The main features of the applica-tion methods for assessing the status and possibility in recreational development in territories of varying de-grees at development are considered.

Download Full-text

Selecting complementary target taxa for representing terrestrial invertebrate diversity in the Australian seasonal tropics

Ecological Indicators ◽

10.1016/j.ecolind.2019.105836 ◽

2020 ◽

Vol 109 ◽

pp. 105836

Author(s):

Stefanie K. Oberprieler ◽

Alan N. Andersen ◽

David K. Yeates

Keyword(s):

Terrestrial Invertebrate ◽

Invertebrate Diversity

Download Full-text

Urban Native Food in Johannesburg

Africa ◽

10.2307/1155628 ◽

1936 ◽

Vol 9 (2) ◽

pp. 277-290 ◽

Cited By ~ 2

Author(s):

Ellen Hellmann

Keyword(s):

Urban Environment ◽

Food Habits ◽

Close Contact ◽

Free Play ◽

The Other ◽

Factors Affecting ◽

European Culture ◽

Wide Range ◽

Two Factors ◽

The One

There are two factors affecting the diet of urban Natives: on the one hand there is the expansive influence of assimilation to and adoption of European food habits, and on the other hand there is active a restrictive influence in the shape of poverty. The urban Native, through his close contact with European culture which residence in an urban environment inevitably entails, has been introduced to an extraordinarily wide range of new foodstuffs and new ways of preparing food. Consequently the range of his food desires has been much increased. But his desires are not allowed free play among this new and wide selection. The factor which narrows down his choice and curbs his desire is his poverty. The urban Native eats according to the capacity of his pocket and his food is usually the first item of expenditure which is marked out for especial economy.

Download Full-text

Influence of barrier-free urban environment on professional socialization of persons with limited health opportunities (example of Perm City)

Alma mater Vestnik Vysshey Shkoly ◽

10.20339/am.12-20.119 ◽

2020 ◽

pp. 119-125

Author(s):

D.A. Rylov ◽

◽

M.K. Duvanskaya ◽

Keyword(s):

Urban Environment ◽

Urban Space ◽

Professional Socialization ◽

Persons With Disabilities ◽

Factors Affecting ◽

Principal Factors ◽

Limited Health ◽

The Impact ◽

The City ◽

Barrier Free

Examined is the problem of professional socialization of persons with disabilities in a barrier-free urban space. Detailed definitions are given to such concepts, as socialization, professional socialization, disabled person, barrier-free urban environment. Principal factors of professional socialization of persons with disabilities are highlighted. The main concepts reflecting the impact of barrier-free urban space on professional socialization of people with disabilities are analyzed. Presented and analyzed are results of the study, conducted in the city of Perm in order to consider social aspects of professional socialization of persons with disabilities in a barrier-free urban environment, as well as factors affecting them.

Download Full-text