Results 71 to 80 of about 205,739 (283)

Leptin receptor in boar spermatozoa [PDF]

open access: yesInternational Journal of Andrology, 2007
SummaryLeptin is active in both metabolism and reproduction. In fact, it seems to exert an inhibitory action on gonadal functions by reducing testosterone production. The presence of leptin in human and boar seminal plasma and in human spermatozoa has been demonstrated; recently, leptin receptors (Ob‐R) have been localized in human spermatozoa, thus ...
DE AMBROGI, MARCO   +3 more
openaire   +2 more sources

Deep learning‐based ecological analysis of camera trap images is impacted by training data quality and quantity

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Machine learning image classifiers are increasingly being used to automate camera trap image labelling, but we don't know how much ML model accuracy matters for downstream ecological analyses. Using two large data sets from an African savannah and an Asian dry forest ecosystem, we compared human labelled data with predictions from deep‐learning models ...
Peggy A. Bevan   +12 more
wiley   +1 more source

MODEL FOR COOPERATION BETWEEN BOAR STUDS AND LABORATORIES FOR REPRODUCTION IN BOARS’ SEMEN QUALITY CONTROL

open access: yesArchives of Veterinary Medicine, 2013
In this article we presented procedures and results of boar semen quality control performed at the Scientific Veterinary Institute “Novi Sad” based on continuous cooperation with the farms’ centers for boar semen production.
Aleksandar Milovanović   +3 more
doaj   +1 more source

Visualizing Causal Interactions Across the 2030 Agenda Pillars: Mapping Priorities for Integrated Policy Action

open access: yesSustainable Development, EarlyView.
ABSTRACT We examine the interconnections between the five pillars of the 2030 Agenda, which we constructed using partial synthetic indices of the sustainable development goals (SDGs). We use time series of the 169 targets corresponding to the 17 SDGs from Eurostat, covering the period from 2000 to 2021 for 28 countries.
Najat Bazah   +1 more
wiley   +1 more source

Unraveling the impact of dog‐friendly spaces on urban–wildland pumas and other wildlife

open access: yesWildlife Biology, EarlyView.
As the most widespread large carnivore on the planet, domestic dogs Canis lupus familiaris can pose a major threat to wildlife, even within protected areas (PAs). Growing human presence in PAs, coupled with increasing pet dog ownership underscores the urgency to understand the influence of dogs on wildlife activity and health.
Alys Granados   +3 more
wiley   +1 more source

Benefit or ecological trap? Monitoring the effects of small clear‐cuts on capercaillie Tetrao urogallus and its mammalian predators

open access: yesWildlife Biology, EarlyView.
The shift to ‘close to nature forestry' as the dominating forestry regime in western‐European forests has resulted in increasing timber volume and denser forests with negative effects on photophilic species. Hence, there is an increasing focus on active habitat management measures to support these species.
Maria Kochs   +6 more
wiley   +1 more source

Production and Quality of Semen in Boars in Insemination Centre

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2017
The aim of this study was to analyze production and quality of semen in boars in an insemination centre. Experimental material consisted of 8,052 semen samples collected from 146 boars.
Vendula Kamanová   +2 more
doaj   +1 more source

Hunting regulations and movements of alpine reindeer

open access: yesWildlife Biology, EarlyView.
Most ungulate populations are regulated by hunting, and harvest rate is regulated through quotas and hunting season duration. Hunting is well known to affect behaviour of ungulates, but how annual variation in quotas and hunting season duration affects individual behaviour remains uncertain.
Atle Mysterud   +3 more
wiley   +1 more source

Ungulate substrate use in fauna passages

open access: yesWildlife Biology, EarlyView.
Fauna passages are increasingly constructed at major roads and railways to mitigate the negative effects of infrastructure and traffic on wildlife. The function of such passages depends on design, including the construction materials, soil, and vegetation.
Milla Niemi, Jan Olof Helldin
wiley   +1 more source

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