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... Headwaters represent a significant fraction of the global stream length and are important for streamflow quality and quantity. Since climate change is predicted to affect runoff generation processes fundamentally, it is essential to understand potential consequences for the water availability in headwater catchments. The Lehstenbach catchment, located in the Fichtel Mountains (Germany), represents ...
autumn; biodiversity; climatology; ecosystems; eddy covariance; energy balance; evapotranspiration; hydrologic cycle; model validation; models; satellites; summer; Brazil
Abstract:
... Evapotranspiration (ET) is one of the main fluxes in the global water cycle. As the Brazilian Pampa biome carries a rich biodiversity, accurate information on the ET dynamics is essential to support its proper monitoring and establish conservation strategies. In this context, we assessed an operational methodology based on the Simplified Surface Energy Balance Index (S-SEBI) model to estimate ener ...
... Using insects to convert food waste into useable products, such as livestock feed, is an elegant solution to the twin crises of waste disposal and food production. To date, the black soldier fly (Hermetia illucens) has garnered intense research interest as an excellent bioconverter that consumes wastes and converts them into high protein larval biomass that can be fed to livestock or used to make ...
... Shallow thaw (thermokarst) lakes abundant in regions of permafrost-affected peatlands represent important sources of carbon dioxide and methane emission to the atmosphere, however the quantitative parameters of phytoplankton communities which control the C cycle in these lakes remain poorly known. This is especially true considering the roles of permafrost, hydrochemical composition of lakes, lake ...
... The conservation of the highly mobile marine mammals species is challenging. One of the primary tools for conservation of marine species and the maintenance of ecosystem processes is the establishment of marine protected areas which is based on the identification of areas of high ecological value, or the identification of effective mitigation measures for the main threats. Bonifacio Bouches is mai ...
... The methodology used for the determination of macrofungal diversity in Mediterranean areas differs in the time of sampling and the number of years displayed, making it difficult to compare results. Furthermore, the results could be refuted because the studies are being conducted over an insufficient number of years or without considering the variation of the meteorological conditions from one year ...
... Based on survey data from the Bohai Sea of China in autumn (October) and winter (December) 2019, the structural characteristics of phytoplankton communities and their relationship with environmental factors were analysed. A total of 114 species of phytoplankton belonging to 84 genera and 3 phyla were identified. Warm-water species occurred frequently but cold-water species decreased in the Bohai S ...
... Dispersal is an essential natural process that influences community assembly, yet directional dispersal through wind and water may have distinctive effects. Environmental and spatial factors jointly influence community structure, but their relative importance is anticipated to vary with spatial distance, dispersal mode, and season. Accordingly, a systemic survey was conducted in subtropical Chines ...
... Although urbanization can lead to habitat loss and biodiversity decline, it has also helped certain declining species recover by providing resources such as food or shelter. Chimney Swifts (Chaetura pelagica) are migratory aerial insectivores that adapted to use masonry chimneys as nesting and communal roosting sites after European colonization and subsequent widespread forest loss. These structur ...
... Dissolved organic nitrogen (DON) from terrestrial input exacerbates eutrophication and induces harmful algal blooms. We investigated the effects of hydrophilic (Hic) and low molecular weight (LMW) DON on the phytoplankton community in Jiaozhou Bay during autumn (October 2017) and spring (May 2018). Our results showed DON additions significantly increased algal growth while decreasing community bio ...
... The main goal of the study was to determine changes in the bacterial structure in bottom sediments occurring over the seasons of the year and to estimate microbial metabolic activity. Bottom sediments were collected four times in the year (spring, summer, autumn, and winter) from 10 different measurement points in Cardinal Pond (Ślesin, NW Poland). The Next-Generation Sequencing (MiSeq Illumina) a ...
... BACKGROUND: Population growth and intensified human activities in conjunction with climate variability continue to affect the hydrologic cycle, aquatic and terrestrial flora and fauna. In this regard, understanding interactions among ecosystem functions, impacts of anthropogenic interventions and those of climate variability is vital for projecting future ecosystem responses to human activities an ...
... In autumn 2021, the largest volcanic eruption on the island of La Palma in historic records took place. The Canary Islands are of volcanic origin and eruptions have always constituted part of their natural disturbance regime. Until recently, their impacts could not be directly observed and studied. Influence of the emission of phytotoxic gases on biodiversity and ecosystem dynamics was hitherto un ...
... Sown field margins are a central part of agri‐environmental schemes aiming to improve biodiversity and ecosystem services in agricultural landscapes. Despite the knowledge that key services are delivered by belowground biodiversity, the impacts of field margins on populations of soil invertebrates both within the margins and the neighbouring crops remain unclear. We investigated the effect of fiel ...
Ardea cinerea; Influenza A virus; Russia; autumn; avian influenza; biodiversity; mobile telephones; spring; East Asia
Abstract:
... Eight nestlings of Grey Heron were captured in the Peter the Great Bay, Primorskii Territory, Russia and were deployed with trackers supporting GPS and Mobile Phone in May 2017. In total, 35,166 records on the locations of the birds were obtained over the study period until November 18, 2019. The tracking data were available for seven birds in autumn 2017, three birds from spring to autumn 2018, t ...
Bryoria; Picea abies; Usnea; autumn; biodiversity; boreal forests; climate; color; decline; ecosystems; epiphytes; extinction; forest management; global change; industrial forestry; lichens; nitrogen; rain; regression analysis; stand age; temperature; trees; water storage; winter; Sweden
Abstract:
... Thin, hair‐like lichens (Alectoria, Bryoria, Usnea) form conspicuous epiphyte communities across the boreal biome. These poikilohydric organisms provide important ecosystem functions and are useful indicators of global change. We analyse how environmental drivers influence changes in occurrence and length of these lichens on Norway spruce (Picea abies) over 10 years in managed forests in Sweden us ...
Ursus arctos; autumn; biodiversity; biodiversity conservation; climate change; cost effectiveness; data collection; feces; genetic variation; issues and policy; winter; Europe
Abstract:
... Genetic monitoring has proven helpful in estimating species presence and abundance, and detecting trends in genetic diversity, to be incorporated in providing data and recommendations to management authorities for action and policy development. We reviewed 148 genetics research papers conducted on the bear species worldwide retrieved from Web of Science, SCOPUS, and Google Scholar. This review aim ...
... Vineyards and their associated socio-economic activities are relevant sectors worldwide. Still, this agroecosystem is one of the most intensely managed crops and erosion-prone land areas. The conventional viticulture practices to control pests, diseases, and weeds, like tillage and agrochemical applications, accelerate the loss of soil biodiversity and compromise the presence of beneficial soil or ...
... Studies were conducted to broaden the current knowledge on seasonality, richness, abundance, and role of syrphids flies in the greenhouse pepper agroecosystem (GPA) in northwestern Argentina. In the GPA, a great richness (54 species) and abundance (517 individuals) of syrphids were found within Syrphinae (40 species; 443 individuals) and Eristalinae (14 species; 74 individuals) subfamilies. Beside ...
Veronica P. Bernardes; Alexandre de Oliveira Marques; Vivian Fransozo; Rogério C. Costa; Gustavo M. Teixeira; Fulvio Aurélio M. Freire; Adilson Fransozo
... Studies comparing parameters before and after the establishment of protected areas in coastal environments allow improvements of management plans and recognition of alterations due to natural or anthropic effects. This study compared spatio-temporal variation in abundance of Xiphopenaeus kroyeri in two equivalent periods. The first period was 12 years before the establishment of the Marine Protect ...
... The littoral zones around archipelagos are highly productive coastal habitats that serve as biodiversity hotspots and provide valuable ecosystem services that are different from those of the pelagic and profundal zones. The littoral zone has complex basal carbon sources from different primary producers and is an important ocean–land transition area. Macroalgae are the main primary producers of the ...
autumn; biodiversity; botanical gardens; case studies; ecological function; ecosystems; frugivores; fruits; models; nestedness; omnivores; phenology; stone fruits; urban parks; winter
Abstract:
... Interaction between animals and plants is an important way to maintain terrestrial biodiversity and ecosystem function, but little is known about the structure of reciprocal networks between fruit plants and frugivore birds in urban habitats. To explore the characteristics of the plant–frugivore network and network roles of species, we observed the fruit ripening phenology of 21 species of fruit p ...
Cephalopoda; autumn; bioaccumulation; biodiversity; carbon; energy flow; fish; heavy metals; humans; isotopes; macroalgae; nitrogen; pollution; seasonal variation; spring; summer; China
Abstract:
... Research on food web structures in marine ecosystems is an important field in ecology where the interaction of structure and function contributes to understanding biodiversity. The coastal waters of Jiangsu are one of the important fishing bases in China. In recent years, with the development of industry in the coastal waters of Jiangsu, heavy metal (HM) pollution in this region has become more se ...
applied ecology; autumn; biodiversity; birds; design for environment; grasses; green infrastructure; habitats; people; spring; vegetation; wildlife; winter
Abstract:
... Cities are designed for humans but are also highly dynamic ecosystems that provide habitats for wild animals. These habitats depend on a city's green infrastructure which is increasingly threatened by urban densification. A commonly studied model taxon for wild animals in cities are birds, and the importance of large green spaces for the diversity of birds in cities has been shown. However, how sm ...
autumn; biodiversity; climate change; drainage; drought; evapotranspiration; evolution; groundwater; highlands; rivers; runoff; soil water; stream flow; streams; subwatersheds; summer; water management; Northern European region
Abstract:
... The drought of summer 2018, which affected much of Northern Europe, resulted in low river flows, biodiversity loss and threats to water supplies. In some regions, like the Scottish Highlands, the summer drought followed two consecutive, anomalously dry, winter periods. Here, we examine how the drought, and its antecedent conditions, affected soil moisture, groundwater storage, and low flows in the ...
Aglais; Inachis io; autumn; biodiversity; citizen science; climate change; estivation; flight; overwintering; phenology; progeny; spring; summer; univoltine habit; Belgium; Western European region
Abstract:
... The peacock butterfly is abundant and widespread in Europe. It is generally believed to be univoltine (one generation per year): adults born in summer overwinter and reappear again in spring to reproduce. However, recent flight patterns in western Europe mostly show three peaks during the year: a first one in spring (overwintering butterflies), a second one in early summer (offspring of the spring ...
... Organic farming was developed to reduce agriculture’s negative impacts on the environment and enhance biodiversity for sustainable productivity in agricultural ecosystems, but the long-term effectiveness of its application in Japanese rice paddies is unclear. We sought to understand how long-term organic farming affects the abundance of animals in both the rice growth and fallow seasons, and how s ...
acoustics; agricultural land; anthropogenic activities; autumn; biodiversity; conservation areas; decision making; energy; humans; national parks; space and time; statistical analysis; wildlife management; Brazil
Abstract:
... Protected areas (PAs) monitoring is a technical bottleneck that limits the implementation of decision-making processes for natural resource and wildlife management. Recent methodological advances make passive acoustic monitoring and associated acoustic index analysis an increasingly suitable method for PAs monitoring. Acoustic indices are mathematical filters that can provide standardised comparat ...
... To assess the ecological potential (EP), the Water Framework Directive (WFD) uses specific parameters but ignores ecosystem functioning and individual/subindividual biological responses. The heavily modified water bodies (reservoirs) are strongly influenced by human activities that promote their imbalance, with a loss or compromise the biodiversity and the functioning of these ecosystems. This wor ...
... Pinus massoniana plantations have been established around the southern part of China to provide timber or fuelwood. In recent years, widely distributed monoculture P. massoniana forests have been transformed into mixed forests due to various ecological problems, such as the decrease in biodiversity in the forests and the lack of soil nutrients. However, how soil microbial diversity responds to a v ...
... Current intensification and expansion of agricultural lands are some of the main anthropogenic processes driving the global decline of biodiversity. Organic farming is generally regarded as a better compromise between production and ecosystems and biodiversity preservation. However, while this practice is gaining popularity worldwide, conventional agriculture is still the main approach, hindering ...
autumn; biodiversity; birds; case studies; ecosystems; forests; indigenous species; landscapes; summer; trees; urban forestry; urbanization; vegetation structure; winter; Brazil
Abstract:
... The structure of bird communities living in cities may have different characteristics depending on the magnitude of building versus green area. In this study, we evaluated the contribution of residential backyards to the diversity of urban birds in the city of Jacareí, São Paulo, Brazil. We hypothesized that the composition and structure of bird communities would change according to (1) backyard, ...
Carex; adults; autumn; biodiversity; butterflies; fens; habitats; land use change; livestock; nectar; pastures; Central European region; Europe
Abstract:
... INTRODUCTION: Due to land-use intensification at productive soils and abandonment of marginal farmland, biodiversity has dramatically declined throughout Europe. The dryad (Minois dryas) is a grassland butterfly that has strongly suffered from land-use change across Central Europe. AIMS/METHODS: Here, we analysed the habitat preferences of adult M. dryas and the oviposition-site preferences in com ...
Cuculidae; Hedychrum; Russia; autumn; biodiversity; environmental protection; fauna; new species; phenology; population dynamics; spring; summer; weather; Caucasus region
Abstract:
... The work provides data on the dynamics of the abundance of 205 taxa from 19 genera: Cleptes, Colpopyga, Elampus, Omalus, Philoctetes, Pseudomalus, Hedychridium, Hedychrum, Holopyga, Chrysidea, Chrysis, Euchroeus, Chrysura, Pseudochrysis, Spinolia, Spinolia, including species rare and new for the fauna of the North Caucasus and Russia. By the nature of the population dynamics, five groups of cuckoo ...
Plecoptera; autumn; biodiversity; cold; community structure; diapause; eggs; highlands; larvae; life history; lotic systems; national parks; riparian areas; spring; summer; Green River; Kentucky
Abstract:
... Stoneflies (Plecoptera) are often associated with inhabiting cold perennial streams, but many species also inhabit intermittent streams that experience reduced or lack of flow during summer and autumn. In this study, the influence of stream permanence on stonefly assemblage composition and spatial distribution at Mammoth Cave National Park, Kentucky, USA, was addressed, based on a 14 month samplin ...
Anguilla australis; Galaxias maculatus; Pseudaphritis; adults; autumn; base flow; biodiversity; catadromous fish; eel; freshwater; fyke nets; juveniles; life history; research; river regulation; summer
Abstract:
... River regulation has degraded aquatic biodiversity globally, and the effects can be pronounced for diadromous species, whose life history processes can depend on flow conditions, such as cues for adult migration, spawning, attracting recruits into coastal rivers and promoting upstream dispersal. Environmental flows are being used to mitigate the effects of river regulation, and understanding their ...
... Heramza K, Barour C, Djabourabi A, Khati W, Bouallag C. 2021. Environmental parameters and diversity of diatoms in the Aïn Dalia dam, Northeast of Algeria. Biodiversitas 22: 3633-3644. Diatoms have long been used as biological indicators of the quality of aquatic environments due to their important capacity to respond to environmental change. As this flora has been very little studied in Algeria, ...
... Mediterranean coastal ecosystems are major tourist destinations that support intensive real estate business developments. However, these areas are also important as biodiversity hotspots. Coastal spiders have been poorly studied as indicators of habitat disturbance, especially those that depend on certain environmental variables. Plesiolena bonneti is a trapdoor spider that exclusively inhabits th ...
... Geographically isolated wetlands (GIWs) are well known as “hotspots” for biodiversity and other ecosystem services, making their value on landscapes disproportionate to the area they occupy. GIWs are dependent on regular cycles of inundation and drying, which makes hydrology a primary controlling variable for sustaining functions and associated ecosystem services. Although human activity has degra ...
... This study is concerned with the seasonal development of a fouling community on artificial surfaces in marine coastal waters at a depth of 1.5–2 m. In the fall–winter period (October–February), Cryptosula pallasiana (Moll); colonial ascidia Botrillus schlosseri (Pallas); and attached ciliates of the genera Zoothamnium, Vorticella, Ephelota, Dendrosoma, and Folliculina form a layer of spotty foulin ...
autumn; biodiversity; estuaries; geographical distribution; habitats; phytoplankton; pollution load; rivers; sediment contamination; sediments; spring; water quality; Yellow River
Abstract:
... The study aims to determine whether phytoplankton diversity can be used as an indicator of water quality in large-scale sediment-laden rivers with heterogeneous environmental conditions. We hypothesized that environmental factors, such as sediment load, water surface slope, and precipitation, may impact the effectiveness of using phytoplankton diversity as a water quality indicator. To test this h ...
amphibians; autumn; biodiversity; biomass; botany; community structure; correspondence analysis; floodplains; hydrology; macrophytes; nitrate nitrogen; oxygen; pH; phosphates; regression analysis; soil; spring; summer; water quality; water temperature; wetlands; winter; Nepal
Abstract:
... In wetland ecosystems, macrophytes are sensitive to water level fluctuations. However, studies specific to the effects of water level fluctuations on distribution and composition of macrophytes are limited in sub-tropical floodplain wetlands of Nepal. This study aimed to examine the association between macrophytes and water levels in the floodplain wetlands of Koshi Tappu, in south-eastern Nepal. ...
... Alien invasive Australian tree species are most prevalent in the Cape Floristic Region (CFR), a global biodiversity hotspot. The plants pose a serious threat as they have replaced indigenous riparian forest vegetation, including many native tree species such as Brabejum stellatifolium and Metrosideros angustifolia along many watercourses. Black wattle (Acacia mearnsii) is a leguminous nitrogen fix ...
... Marine plastic litter is ubiquitous and knowledge about its impact on coasts, open waters, the deep-sea, and the biota found in those habitats is increasing. However, studies of how it affects terrestrial environments such as islands are not as common. Over time, macroplastics in marine, as well as terrestrial environments, will fragment into microplastics. A toxic level of microplastic is defined ...
... In a context of growing demands for wood and wood derived products, plantations of exotic tree species have globally increased. Fast growth and high productivity made Eucalyptus one of the most successful tree genus around the world. Nevertheless, this genus is often associated with negative ecological impacts on biodiversity and ecosystem functioning and the risk of expansion is considered a majo ...
... We found distinct and consistently placed, species- and sex-specific abrasions of the cuticle on museum specimens of 14 species of the Pterostichus Bonelli, 1810 (Carabidae, Pterostichini) subgenusHypherpes Chaudoir, 1838. We deduced that these marks are generated during mating and, therefore, can be used to distinguish between preserved specimens of beetles that had previously mated at the time o ...
... Pollination is an essential ecosystem service for pollinator-dependent crops and plant communities. Apis mellifera L. is by far the most commonly used species to obtain this service in agriculture. However, there is growing evidence of the importance for crop yields of the service provided by wild bees and non-bee insect pollinators. Establishing flower resources in agricultural landscapes is a ma ...
Botryococcus; autumn; biodiversity; fuel production; lakes; morphometry; nutrient content; phytoplankton; sodium bicarbonate; surface water; surveys; transmission electron microscopy; winter; Serbia
Abstract:
... Alkaline saline ponds and lakes are habitats with unique biodiversity. The green alga of the genus Botryococcus was accidentally discovered during a micro-algal survey of these habitats in Serbia. Species B. terribilis was found and identified for the first time in Serbia in the small sandpit lake of the Rusanda Nature Park. The first sampling was incomplete due to the unknown origin of the orange ...
... Brackish lagoons are highly productive systems that support fishing and aquaculture activities with important revenue. At the same time, they function as fundamental habitats for the conservation of a number of species that use lagoons for reproduction and feeding. The present study aims at describing the seasonal structural and functional variations of fish communities in the Fattibello lagoon, a ...
... Eleonora’s Falcon Falco eleonorae is a migratory raptor, well-known for its delayed breeding period. Owing to its great mobility, current information on its distribution pattern during the pre-breeding period is rather sporadic, mainly based on field observations and only one telemetry study. Likewise, the species’ ranging activity during the breeding period has not been thoroughly investigated du ...