Results 11 to 20 of about 12,844 (241)

Ecological indicators for qualitative assessment of Ojarud River: A case study [PDF]

open access: yesEcology and Evolution, Volume 13, Issue 7, July 2023., 2023
The results of this study exposed a sizable alteration in the diversity and abundance of macro‐invertebrate from the sensitive families to resistant and tolerant taxa under the contamination stress resulting from the point source pollution in the Ojarud River.
Aydin Mobasher   +3 more
wiley   +2 more sources

Multi‐marker DNA metabarcoding reveals spatial and sexual variation in the diet of a scarce woodland bird [PDF]

open access: yesEcology and Evolution, Volume 13, Issue 5, May 2023., 2023
Hawfinch (Coccothraustes coccothraustes) have been declining in the UK since the 1970s. Using DNA metabarcoding, we wanted to increase ecological knowledge associated with Hawfinch, to aid their recovery. We found 49 and 90 prey taxa in the diet, which can improve our knowledge of why Hawfinch persist within certain areas of the UK. Abstract Avian diet
Ewan H. Stenhouse   +8 more
wiley   +2 more sources

Abundance, Distribution, and Diversity of Freshwater Snail and Prevalences of Their Infection by Cercaria of Fasciola gigantica and Schistosoma spp at Mayo‐Vreck River, Far North Region of Cameroon [PDF]

open access: yesJournal of Tropical Medicine, Volume 2023, Issue 1, 2023., 2023
Malacological and parasitological studies were conducted from April 2020 to March 2021 to determine the abundance and distribution of molluscs and cercariae of Schistosoma spp and Fasciola gigantica. Collected molluscs are exposed to strong light to induce cercarial release. Mollusc densities were higher at station 1 (Gamak) than in station 8 (Patakai),
Augustin Siama   +6 more
wiley   +2 more sources

Life history and population ecology of Radix swinhoei (Lymnaeidae) in nearshore regions of a hypereutrophic plateau lake [PDF]

open access: yesEcology and Evolution, Volume 12, Issue 12, December 2022., 2022
The life history traits (life span and growth), annual secondary production, and population size structure of Asia widespread pulmonate Radix swinhoei were carefully and systematically examined across 1 year in nearshore regions of a hypereutrophic plateau lake, Lake Dianchi. The maximum potential life span of R.
Junqian Zhang   +4 more
wiley   +2 more sources

Spatio‐Temporal Variation in Diet Among Age and Sex Cohorts of a Model Generalist Bird Species, the Great Tit Parus major: New Insights Revealed by DNA Metabarcoding [PDF]

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
Identifying the sources of intraspecific dietary variation is central to understanding how populations adapt to environmental variation, and yet these sources are poorly understood in a key model species in avian ecology, the great tit. Here we use DNA metabarcoding to describe the diet of great tits at an unprecedented level of detail and reveal ...
J. R. Coomes   +5 more
wiley   +2 more sources

Molecular assessment of food web dynamics identifies critical periods for managing resilience in biological pest control [PDF]

open access: yesEcological Applications, Volume 35, Issue 5, July 2025.
Abstract Food webs are not static over time, but our knowledge of their dynamics is extremely scarce due to methodological challenges. In turn, this significantly limits our ability to mechanistically understand the temporal changes that trophic networks annually undergo.
Pedro Nuno Branco Leote   +2 more
wiley   +2 more sources

No recovery in the biomass of flying insects over the last decade in German nature protected areas [PDF]

open access: yesEcology and Evolution, Volume 14, Issue 3, March 2024.
Across two seasons, we accumulated a comprehensive data set on insect biomass from representative nature reserves across Germany. The measured overall insect biomass remained at low levels and corresponds to the published latest figures from 2007 to 2016.
Roland Mühlethaler   +5 more
wiley   +2 more sources

Terpenoids in Marine Heterobranch Molluscs [PDF]

open access: yesMarine Drugs, 2020
Heterobranch molluscs are rich in natural products. As other marine organisms, these gastropods are still quite unexplored, but they provide a stunning arsenal of compounds with interesting activities.
Conxita Avila
doaj   +2 more sources

Hybridization and recurrent evolution of left–right reversal in the land snail genus Schileykula (Orculidae, Pulmonata) [PDF]

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 58, Issue 3, Page 633-647, August 2020., 2020
The land snail genus Schileykula comprises eight species, distributed mainly in arid limestone areas in Turkey. We performed phylogenetic analyses based on three mitochondrial genes (cytochrome c oxidase subunit 1, 12S, and 16S) and a section of the nuclear H4/H3 histone gene cluster.
Josef Harl   +2 more
wiley   +2 more sources

Descripción de un nuevo limácido de Menorca (Islas Baleares): Gigantomilax (Vitrinoides) benjaminus sp. n. (Gastropoda, Pulmonata) [PDF]

open access: yesAnimal Biodiversity and Conservation, 2008
Descripción de un nuevo limácido de Menorca (Islas Baleares): Gigantomilax (Vitrinoides) benjaminus sp. n. (Gastropoda, Pulmonata) We describe a new endemic limacid slug, Gigantomilax (Vitrinoides) benjaminus n. sp.
Borredà, V., Martínez-Ortí, A.
doaj   +2 more sources

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