Results 11 to 20 of about 3,901 (197)

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

open access: yesEcol Evol, 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.
Mobasher A   +3 more
europepmc   +2 more sources

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

open access: yesEcol Evol, 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
Stenhouse EH   +8 more
europepmc   +2 more sources

Orally Administered Edible Snail Extract Powder Enhances Skin Hydration via Hyaluronic Acid Synthesis and Barrier Gene Modulation in SKH-1 Hairless Mice. [PDF]

open access: yesFood Sci Nutr
Immunohistochemical staining of dorsal skin tissues for HAS2, HYAL1, and TGF‐β1. Oral administration of SEP increased the expression of HAS2 and TGF‐β1 in a dose‐dependent manner, while reducing HYAL1 expression. These findings indicate that SEP promotes hyaluronic acid synthesis and extracellular matrix remodeling. The results support the moisturizing
Lee C, Baek S, Lim W, Lim TG.
europepmc   +2 more sources

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

open access: yesEcol Evol, 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.
Zhang J, Song Z, Li Z, Yang J, Xie Z.
europepmc   +2 more sources

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

open access: yesEcol Evol
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 ...
Coomes JR   +5 more
europepmc   +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: yesJ Trop Med, 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),
Siama A   +5 more
europepmc   +2 more sources

Establishing DNA-Based Strategies for Soil Biodiversity Assessment: Insights From Carabid Beetles. [PDF]

open access: yesEcol Evol
DNA metabarcoding revolutionizes soil biodiversity assessments by offering unparalleled taxonomic resolution and efficiency compared to traditional methods. Our study shows that the common decontamination step is unnecessary, streamlining workflows without compromising accuracy.
Fraga Dornellas L   +8 more
europepmc   +2 more sources

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

open access: yesEcol Appl
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.
Branco Leote PN   +2 more
europepmc   +2 more sources

Target‐capture probes for phylogenomics of the Caenogastropoda

open access: yesMolecular Ecology Resources, Volume 23, Issue 6, Page 1372-1388, August 2023., 2023
Abstract Target‐capture approaches have facilitated a rapid growth in the field of phylogenomics but few probe sets exist for molluscs, an exceptionally rich phylum with unparalleled ecological and morphological diversity. We designed and tested the first universal probe set using Phyluce to capture ultraconserved elements (UCEs) and exon loci from the
Tricia C. Goulding   +2 more
wiley   +1 more source

100 years of Haldane's rule

open access: yesJournal of Evolutionary Biology, Volume 36, Issue 2, Page 337-346, February 2023., 2023
Haldane's rule: when hybrids from one sex are absent, rare or sterile, that sex is always the heterogametic sex. Abstract Haldane's rule is one of the ‘two rules of speciation’. It states that if one sex is ‘absent, rare or sterile’ in a hybrid population, then that sex will be heterogametic.
Finn Cowell
wiley   +1 more source

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