scholarly journals Local habitat factors and spatial connectivity jointly shape an urban insect community

2021 ◽  
Vol 214 ◽  
pp. 104177
Author(s):  
Anna E. Barr ◽  
Laura J.A. van Dijk ◽  
Kristoffer Hylander ◽  
Ayco J.M. Tack
Keyword(s):  
Insect Community ◽  
Spatial Connectivity ◽  
Habitat Factors ◽  
Local Habitat

scholarly journals Effect of mowing on the structure of sedge communities in the Chwiszczej river valley (Białowieża forest)

2012 ◽  
Vol 31 (3) ◽  
pp. 33-39 ◽  
Author(s):  
Aleksander Kołos
Keyword(s):  
River Valley ◽  
Habitat Conditions ◽  
Edge Zone ◽  
Floristic Richness ◽  
Białowieża Forest ◽  
Habitat Factors ◽  
Meadow Species ◽  
Different Parts ◽  
Local Habitat

Abstract. The paper presents the results of the 4-year studies on the influence of mowing on sedge communities structure in the near-edge zone and in the riverbed-adjacent zone of the Chwiszczej River valley (Białowieża Forest). It was assumed that various habitat conditions in different parts of the valley could modify effects of mowing. The floristic richness of sedge dominated patches increases under the influence of mowing in both zones of the valley, mainly as a result of growing number of meadow species. These changes are determined by habitat factors only in the central part of the valley, where ground water’s dynamics is the biggest. Effects of mowing are almost completely canceled by long-lasting flooding. Such flooding may affect on sedge communities’ structure stronger than mowing. Irrespective of local habitat conditions, mowing is favorable to spread of Calamagrostis stricta, which is species of high competitiveness. Its domination could lead to decrease of floristic richness in rush communities.

The importance of forest area and configuration relative to local habitat factors for conserving forest mammals: A case study of koalas in Queensland, Australia

2006 ◽  
Vol 132 (2) ◽  
pp. 153-165 ◽  
Author(s):  
Clive A. McAlpine ◽  
Jonathan R. Rhodes ◽  
John G. Callaghan ◽  
Michiala E. Bowen ◽  
Daniel Lunney ◽  
...  
Keyword(s):  
Forest Area ◽  
Habitat Factors ◽  
Local Habitat

scholarly journals THE CONCEPT OF INFORMATION MODEL OF ESTIMATION OF RISK DYNAMICS OF MASS NON-INFECTIOUS DISEASES OF CHILDREN CAUSED BY EXPOSURE TO LOCAL FACTORS OF ENVIRONMENT

2020 ◽  
Vol 2018 (1) ◽  
pp. 184-185
Author(s):  
Valeriy Prusakov ◽  
Aleksandra Prusakova
Keyword(s):  
Infectious Diseases ◽  
Information Model ◽  
Local Factors ◽  
Irkutsk Region ◽  
Habitat Factors ◽  
Risk Dynamics ◽  
Concept Of Information ◽  
The Impact ◽  
Estimation Of Risk ◽  
Local Habitat

This report presents the concept of an information model for assessing the dynamics of the risk of mass non-infectious diseases of children, caused by the impact of local habitat factors, formed using an epidemiological study of the children of the Irkutsk region.

Contribuição dos atores da pesca para a bioecologia do Camurim Centropomus undecimalis (CENTROPOMIDAE – PERCIFORMES) capturado no litoral Amazônico brasileiro

2020 ◽  
Vol 9 (10) ◽  
pp. e4119108691
Author(s):  
Maria Eduarda Garcia de Sousa Pereira ◽  
Voyner Ravena Cañete ◽  
Marllen Karine da Silva Palheta ◽  
Francisco José da Silva Santos ◽  
Bianca Bentes da Silva ◽  
...  
Keyword(s):  
Centropomus Undecimalis ◽  
Microsoft Office ◽  
Local Habitat

O objetivo deste trabalho foi conhecer e descrever a bioecologia do Centropomus undecimalis (Bloch, 1792), quanto a sua nomenclatura local, hábitat, alimentação, reprodução e migração, a partir do conhecimento dos atores da pesca, bem como, traçar o perfil socioeconômico desses trabalhadores. Os dados foram obtidos por meio de entrevistas semiestruturadas junto aos pescadores, mestres e donos de embarcações, entre março e maio de 2019 no município de Bragança, por meio da técnica snowball. Os dados foram tabulados e analisados em planilhas eletrônicas dos Software Microsoft Office Excel, Past e IRAMUTEQ. O perfil socioeconômico dos atores da pesca foi similar em relação a idade, escolaridade, tempo na pesca e renda, exceto o último, que variou significativamente em função da ocupação/profissão. Essa espécie é conhecida localmente como camurim, robalo e camurim-preto. Sendo encontrado ao longo do litoral amazônico brasileiro, distribuído em 20 etno-habitats. Destes, 49,1% encontram-se no ambiente costeiro/marinho, 47,1% no estuarino e 3,8% no dulcícola. Alimentam-se, preferencialmente de peixes, seguido de crustáceos e insetos. Essa espécie reproduz ao longo do ano, porém, com maior frequência entre os meses de junho e dezembro (período de transição chuvoso-seco e período seco). A migração ocorre em função da sazonalidade local, fase de vida e habitat, influenciando na alimentação, reprodução e crescimento. Os resultados apresentados, a partir de uma perspectiva integrada de conhecimentos, pode ser peça chave no ponto de partida para o manejo e conservação dessa espécie no litoral amazônico brasileiro.

Diseases and parasites of wild and cultivated mussels along the Patagonian coast of Argentina, southwest Atlantic Ocean

2020 ◽  
Vol 139 ◽  
pp. 139-152
Author(s):  
N Vázquez ◽  
A Frizzera ◽  
F Cremonte
Keyword(s):  
Inflammatory Responses ◽  
Geographical Area ◽  
Infection Intensity ◽  
Southwest Atlantic ◽  
Pathological Conditions ◽  
Habitat Factors ◽  
Pathogen Prevalence ◽  
Patagonian Coast ◽  
Ecological Habitat ◽  
Cultivated Populations

A histological survey of the commercially edible mussels Mytilus platensis and M. chilensis from wild and cultivated populations along the coast of Patagonia, Argentina (42°00’ to 54°47’S), was carried out to determine their health status. Diagnostic results included 3 types of inflammatory responses (infiltrative, nodular, and encapsulation), disseminated neoplasia disease, 2 abnormal reproductive conditions (gonadal atresia and intersex), prokaryotic inclusions, protozoans, and metazoans. Pathogen prevalence and infection intensity among mussels of different sampling sites and between those of wild and cultivated populations were compared. Inflammatory responses were recorded in all mussels from all sites, while disseminated neoplasia only occurred in the most southern cultivated M. chilensis. Intracellular prokaryotic inclusions were broadly distributed in the mussels from both northern and southern Patagonian coasts. Ciliates showed the highest prevalence among wild mussels from the colder waters of Bahía Brown. Turbellaria were recorded at higher prevalence in cultured mussels (41.7%), and trematode metacercariae occurred exclusively in intertidal wild mussels. None of the parasites found appears to be a problem to the fishery or farming, although disseminated neoplasia should be monitored. In addition, we found that mytilid species coexisting with M. platensis (Aulacomya atra and Perumytilus purpuratus) at one location shared the same pathological conditions and parasites, which differed from those of M. platensis at a distant locality. These results suggest that pathological conditions and parasites were influenced more by ecological habitat factors than by the species of mussels present, based on similar parasite assemblages found among closely related mytilid hosts in the same geographical area.

Use of Ornamental Trees in Dating of Abandoned Cemeteries on the Example of Thuja Occidentalis and Thuja Orientalis

2012 ◽  
Vol 1 (1) ◽  
pp. 45-50
Author(s):  
Magdalena Opała ◽  
Leszek Majgier
Keyword(s):  
Climatic Conditions ◽  
The Other ◽  
Lake District ◽  
Thuja Occidentalis ◽  
North Eastern ◽  
The 1960S ◽  
Thuja Orientalis ◽  
Ornamental Trees ◽  
Common Tree ◽  
Local Habitat

Abstract Due to the lack of maintenance, abandoned cemeteries are often incorporated into the landscape. In many cases the information about the age of the cemetery is unavailable. To find out the approximate time of the formation of the cemetery the information recorded in the annual tree and shrub rings can be used. One of the most common tree species, planted for ornamental and symbolic purposes on the cemeteries, are Thuja orientalis and Thuja occidentalis. Alien to the Polish flora, these species adapted well to the local habitat and climatic conditions. The paper presents an attempt to apply dendrochronological dating to determine the age of the abandoned cemeteries in the region of the Great Masurian Lakes, part of the Masurian Lake District (north-eastern Poland). The study included five abandoned cemeteries. In total, 15 cores were taken from the trees. After applying the standard dendrochronological method, local chronologies for the studied species were established. The research indicated that the oldest found specimens - over 70 yrs old - are Thuja occidentalis individuals growing at the Słabowo cemetery. At the other sites the specimens of both Thuja species date back to the 1960s and early 1970s. Compared to the historical information regarding the age and origin of the studied objects, thujas growing there are much younger than the age of the cemeteries foundation. The presented method proved to be very helpful in understanding the time of Thuja occidentalis and Thuja orientalis introduction at the investigated cemeteries.

Understory use by terrestrial small mammals in an unflooded forest patch in the Pantanal floodplain

Mammalia ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Nayara Yoshie Sano ◽  
Heitor Miraglia Herrera ◽  
Grasiela Edith de Oliveira Porfirio ◽  
Filipe Martins Santos
Keyword(s):  
Small Mammals ◽  
Small Mammal ◽  
Understory Vegetation ◽  
Monodelphis Domestica ◽  
Forest Patch ◽  
Habitat Features ◽  
Species Characteristics ◽  
Local Habitat

AbstractTo date, there have been no studies that have evaluated small mammal utilization of the understory of forests. In this study, we described the use of vertical strata by small mammals in patches of unflooded forests, known as “cordilheiras”, in the Nhecolândia sub-region of the Pantanal, Brazil. We collected all species using the ground and understory, including the terrestrial didelphid Monodelphis domestica. We suppose that local habitat features (e.g., Acuri palms), rather than intrinsic species characteristics, may be more conducive to the use of understory vegetation by small mammals in the Nhecolândia region.

scholarly journals Effect of tree species identity and related habitat parameters on understorey bryophytes – interrelationships between bryophyte, soil and tree factors in a 50-year-old experimental forest

2021 ◽  
Author(s):  
Kaja Rola ◽  
Vítězslav Plášek ◽  
Katarzyna Rożek ◽  
Szymon Zubek
Keyword(s):  
Species Richness ◽  
Tree Species ◽  
Forest Floor ◽  
Vascular Plant ◽  
Soil Parameters ◽  
Species Identity ◽  
Habitat Factors ◽  
Positive Correlations ◽  
Old Trees ◽  
Habitat Parameters

Abstract Aim Overstorey tree species influence both soil properties and microclimate conditions in the forest floor, which in turn can induce changes in ground bryophyte communities. The aim of the study was to investigate the effect of tree species identity and the most important habitat factors influencing understorey bryophytes. Methods We assessed the effect of 14 tree species and related habitat parameters, including soil parameters, vascular plant presence and light intensity on bryophytes in monospecific plots covered by nearly fifty-year-old trees in the Siemianice Experimental Forest (Poland). Results The canopy tree species determined bryophyte species richness and cover. The strongest differences were observed between plots with deciduous and coniferous trees. Soils with a more acidic pH and lower content of macronutrients supported larger bryophyte coverage. We also found a positive correlations between vascular plants and availability of light as well as bryophyte species richness. Conclusion Tree species identity and differences in habitat conditions in the forest floor lead to changes of ground bryophyte richness, cover and species composition. Consequently, the changes in the dominant tree species in the stand may result in significant repercussions on ground bryophyte communities. We indicated that the introduction of alien tree species, i.e. Quercus rubra, has an adverse effect on bryophyte communities and suggested that the selection of tree species that contribute to the community consistent with the potential natural vegetation is highly beneficial for maintaining ground bryophyte biodiversity.

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