Results 21 to 30 of about 23,570,638 (299)

Regional Variation in Kemp’s Ridley Sea Turtle Diet Composition and Its Potential Relationship With Somatic Growth

open access: yesFrontiers in Marine Science, 2020
Reptile growth is influenced by many ecological processes that can cumulatively give rise to divergent somatic growth rates within spatially structured populations.
Matthew D. Ramirez   +5 more
doaj   +1 more source

Comparison of mechanical sorting and DNA metabarcoding for diet analysis with fresh and degraded wolf scats

open access: yesEcosphere, 2021
DNA metabarcoding has become a powerful technique for identifying the species present in a bulk environmental sample. The application of DNA metabarcoding to wildlife diet analysis is a particularly promising tool for exploring trophic interactions.
Aimee L. Massey   +4 more
doaj   +1 more source

Stable Isotope Analysis of Ozark Hellbender (Cryptobranchus alleganiensis bishopi) Living and Preserved Museum Tissue Reveals a Shift in Their Generalist Diet Composition

open access: yesEcologies, 2021
Ozark hellbenders (Cryptobranchus alleganiensis bishopi) have undergone marked population declines across their entire distribution. A variety of ecological life history research has been conducted to determine the cause(s) of the declines. Historically,
Waylon Hiler   +6 more
doaj   +1 more source

Assessing grey seal (Halichoerus grypus) diet in western Scotland [PDF]

open access: yes, 2008
Grey seal diet was last comprehensively studied in western Scotland in 1985. Since then, the grey seal population has increased by approximately 30% and relative abundance of fish stocks in the area has changed markedly.
Harris, R.N.
core   +2 more sources

Recommended best practices for plastic and litter ingestion studies in marine birds: Collection, processing, and reporting

open access: yesFACETS, 2019
Marine plastic pollution is an environmental contaminant of significant concern. There is a lack of consistency in sample collection and processing that continues to impede meta-analyses and large-scale comparisons across time and space. This is true for
Jennifer F. Provencher   +8 more
doaj   +1 more source

Metabarcoding dietary analysis in the insectivorous bat Nyctalus leisleri and implications for conservation [PDF]

open access: yesBiodiversity Data Journal, 2023
In this study, we aim to uncover diet preferences for the insectivorous bat Nyctalus leisleri (Leisler's bat, the lesser noctule) and to provide recommendations for conservation of the species, based on the analysis of prey source habitats. Using a novel
Sarah Bourlat   +8 more
doaj   +3 more sources

Identification of groups who report similar patterns of diet among a representative national sample of British adults aged 65 years of age or more. [PDF]

open access: yes, 2001
OBJECTIVES: Using a national representative sample to identify groups within the UK male and female population over 65 years who report similar patterns of diet.
Pryer, JA, Cook, A, Shetty, P
core   +1 more source

Isotopic analysis reveals landscape patterns in the diet of a subsidized predator, the common raven

open access: yesEcological Solutions and Evidence, 2021
Anthropogenic subsidies to native predators can have cascading effects on sensitive prey populations, but the spatial mechanisms behind these effects are often unknown.
Seth Harju   +3 more
doaj   +1 more source

An assessment of diet overlap of two mesocarnivores in the North-West Province, South Africa [PDF]

open access: yes, 2009
We used scat analysis to study the diet of two sympatric medium-sized carnivores: brown hyaena and black-backed jackal, in the NorthWest Province of South Africa.
Craig J. Tambling   +33 more
core   +1 more source

Fecal microbiota and diets of muskox female adults and calves

open access: yesEcology and Evolution, 2022
In mammals, the gut microbiome is vertically transmitted during maternal lactation at birth. In this study, we investigated the gut microbiome and diets of muskox, a large herbivore inhabiting in the high Arctic.
Ji‐Yeon Cheon   +5 more
doaj   +1 more source

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