Results 141 to 150 of about 294,374 (349)

Effectiveness of integrated shrub management and restoration techniques for rehabilitating shrub‐encroached rangelands of South Africa

open access: yesGrassland Research, EarlyView.
Herbaceous plant recovery following shrub clearing and reseeding in the rangelands of Peddie, Eastern Cape of South Africa. CTL, control; CO, cutting only; CR, cutting and reseeding; UPO, uprooting only; UPR, uprooting and reseeding. Abstract Background Shrub encroachment (SE) drives rangeland degradation, threatening biodiversity and forage ...
Monelisi Makanya   +3 more
wiley   +1 more source

LITTERBASE - Online Portal for Marine Litter & Microplastics and their Implications for Marine Life [PDF]

open access: yes, 2018
Contamination of the oceans with anthropogenic litter is a global environmental problem which currently receives increasing attention by scientists, policy makers, public authorities, media and the general public.
Bergmann, Melanie   +3 more
core  

Polymorphisms of ESR1, PGR and CYP19A1 Genes and their Association with Litter Size in Small-Tailed Han Sheep

open access: diamond, 2023
Qingqing Liu   +4 more
openalex   +1 more source

Paternal Exposure to the Neonicotinoid Pesticide Clothianidin Alters Sperm MicroRNA Profiles in Mice and Intergenerationally Reduces Locomotor Activity in Male Offspring

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Accumulating evidence suggests that paternal environmental factors have epigenetic effects on sperm and influence offspring. Neonicotinoid pesticides (NNs), which are widely used around the world, are known to affect offspring phenotypes through maternal exposure in mice, but the effect of the paternal exposure remains unknown.
Makiko Ito   +11 more
wiley   +1 more source

Early life reproductive investment affects longevity in ewes

open access: yesAnimal
To increase lifetime production of ewes, it has been suggested to mate ewe lambs. However, research on the effect of age at first lambing on longevity has shown conflicting results. This study investigated the impact of early life reproduction (i.e., the
L.S. Kierkegaard   +6 more
doaj   +1 more source

Reproductive Performance of Pig Based on Age of the Sows and Litter Size

open access: bronze, 2023
Sri Gustina   +3 more
openalex   +1 more source

HERITABILITY ESTIMATES OF LITTER SIZE IN PIGS [PDF]

open access: yesAnnales de Génétique et de Sélection Animale, 1978
Richter L, Willeke H
openaire   +3 more sources

Human Health Risk Assessment From Exposure to Toxic Metals in Soils and Leafy Vegetables in Smallholder Farms of Northeastern Brazil

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT This study assessed human health risks associated with exposure to potentially toxic metals (PTMs) in soils and leafy vegetables cultivated in smallholder agricultural systems in Northeastern Brazil. Soil and vegetable samples were collected from 18 agricultural areas and analyzed for cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), nickel
Fernando Ferreira da Cunha Filho   +5 more
wiley   +1 more source

Fire Fuel Protocol [PDF]

open access: yes, 2003
The purpose of the resource is to measure the different types of fuels for fires.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Experimental Assessment of the Effects of Substrate Choice on the Duration of Chemical Signals in Fecal Scent‐Marks of Free‐Ranging Iberian Wolves

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Chemical communication, typically based on feces, urine, and glandular secretions, often deposited as substrate scent marks, plays a key role in social organization and communication among many mammals, especially carnivores. This study assesses experimentally whether the type of substrate chosen for fecal deposition and the temperature ...
Elisa Espartosa   +2 more
wiley   +1 more source

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