Results 51 to 60 of about 1,924 (184)
Piscivorous Bird Deterrent Device Based on a Direct Digital Synthesis of Acoustic Signals
Elektronika ir Elektrotechnika, 2021 This paper addresses the development of an acoustic deterrent device for the protection of fishponds and other objects against the unwanted presence of birds. The objective of the paper is not only providing of a deep analysis of available technologies for waveform synthesis and generation, but also building a theoretical base for the design and ...
Arturs Aboltins +3 more
openaire +3 more sources
Diet, phenology and body size shape nutrient release by songbirds
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Animals can dramatically alter ecosystem structure and function through the cycling and transport of nutrients in their waste. While birds are particularly capable of influencing nutrient cycles due to their high mobility, abundance, metabolism and functional diversity,
Linsey Chen +2 more
wiley +1 more source
Ecological Processes, 2021 Background Habitat heterogeneity clearly distinguished in terms of availability of food and habitat resources and landscape features (natural or human-modified) play a crucial role in the avian species composition and population structure.
Bibhu Prasad Panda +4 more
doaj +1 more source
Fisheries Management and Ecology, EarlyView.ABSTRACT Sustainable management of inland fisheries presents major challenges because it often involves complex and open access systems. Lake IJsselmeer is among the largest freshwater lakes in western Europe and supports active commercial fisheries.
Joey J. J. Volwater +3 more
wiley +1 more source
Biotemas, 2019 The modification of landscapes by anthropic action, mainly due to urbanization, exerts strong pressure on birds. Public parks and other green areas offer favorable conditions for birds in cities throughout the year. Nannopterum brasilianus (Gmelin, 1789)
Dayana Nascimento Carvalho +2 more
doaj +1 more source
Fisheries Oceanography, EarlyView.ABSTRACT Japanese anchovy (Engraulis japonicus) is the most abundant fish in the East China Sea (ECS) and an important fishery resource throughout its life stages. Using samples collected along the ECS shelf‐break in April over a 22‐year period (2001–2022), we examined the horizontal distribution and interannual variability of larval density (mean ...
Chiyuki Sassa +5 more
wiley +1 more source
Bird Diversity in Fruit Gardens in Bang Nang Li Sub-district, Amphawa District, Samut Songkram Province [PDF]
Suan Sunandha Rajabhat University Journal of Science and Technology, 2014 This research is quantitative and qualitative explorative research. The purposes of this research was 1) to study bird species, feeding behavior, abundance and status in study area 2) to study activities in utilization of birds in the study site.
Nitinarth Charoenpokaraj
doaj
Frontiers in Environmental Science, 2022 We examined the influence of Montreal wastewater treatment plant (WWTP) effluents on two top predators, Walleye (Sander vitreus) and Sauger (Sander canadensis), with a focus on δ15N isotopic signatures and per- and polyfluoroalkyl substances (PFAS ...
Hermann A. Kaboré +7 more
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Ecology of Freshwater Fish, Volume 35, Issue 3, July 2026.ABSTRACT The mechanisms facilitating coexistence of cryptic species in sympatry have long puzzled ecologists. Cryptic species have nearly identical morphology and, therefore, would be presumed to have high niche overlap and potential for interspecific competition and competitive exclusion when resources are limited. Lowland rivers in South America have
Benton L. Fry, Kirk O. Winemiller
wiley +1 more source
, 2021 This dataset contains data used in the manuscript "Historic and contemporary use of catfish aquaculture by piscivorous birds in the Mississippi Delta", published in The Condor: Ornithological Applications. All data were collected in northwest Mississippi
Dorr, Brian, Burr, Paul
core +1 more source