Results 61 to 70 of about 59,047 (223)

In silico identification of essential proteins in Corynebacterium pseudotuberculosis based on protein-protein interaction networks [PDF]

open access: yes, 2016
Background Corynebacterium pseudotuberculosis (Cp) is a gram-positive bacterium that is classified into equi and ovis serovars. The serovar ovis is the etiological agent of caseous lymphadenitis, a chronic infection affecting sheep and goats, causing ...
Azevedo, Vasco   +9 more
core   +3 more sources

Are human‐altered landscapes reshaping carnivore niche spaces in the Trans‐Himalaya?

open access: yesWildlife Biology, EarlyView.
Understanding carnivore interactions under growing human pressures is crucial for conservation. We examined spatial and temporal niche structuring among snow leopards Panthera uncia, Himalayan wolves Canis lupus chanco, and red foxes Vulpes vulpes; while also incorporating free‐ranging dogs Canis lupus familiaris as a human‐subsidized mesopredator ...
Priyanka Justa, Salvador Lyngdoh
wiley   +1 more source

DNA metabarcoding reveals wolf dietary patterns in the northern Alps and Jura Mountains

open access: yesWildlife Biology, EarlyView.
Understanding predator–prey interactions is crucial for wildlife management and human–wildlife coexistence, particularly in multi‐use landscapes such as western Europe. As wolves Canis lupus recolonize their former habitats, knowledge of their diet is essential for conservation, management and public acceptance.
Florin Kunz   +6 more
wiley   +1 more source

Two major ruminant acute phase proteins, haptoglobin and serum amyloid A, as serum biomarkers during active sheep scab infestation [PDF]

open access: yes, 2013
Two ruminant acute phase proteins (APPs), haptoglobin (Hp) and serum amyloid A (SAA), were evaluated as serum biomarkers (BMs) for sheep scab–a highly contagious ectoparasitic disease caused by the mite Psoroptes ovis, which is a major welfare and ...
Burgess, Stewart TG   +5 more
core   +1 more source

Scanning and Transmission Electron Microscopic Observations of Eperythrozoon ovis (E. ovis)

open access: yesThe Japanese Journal of Veterinary Science, 1982
Eperythrozoon ovis 人工感染緬羊の血液と骨髄液の電顕学的観察により, 本虫体は大きさ 0.2-0.6μm の桿状およびリング状の寄生体で単層の限界膜を有し, 内部にリボゾームに類似した顆粒を密に含有することを知った. また, 虫体の周辺部には糸状構造物を持ち,それを介して付着する像を認めた. 骨髄液の検索により, E. ovis は骨髄で増殖して赤芽球の時期からすでに寄生することが確認された.
S, Ichijo   +3 more
openaire   +3 more sources

Plasma insulin‐like growth‐factor 1 (IGF‐1) concentrations predict early life‐history traits in a wild mammal

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The hormone insulin‐like growth factor 1 (IGF‐1) is a key player in the insulin/IGF signalling (IIS) pathway. Extensive biogerontological research demonstrates that this evolutionarily conserved nutrient‐sensing pathway plays a causal role in the regulation of growth ...
Sanjana Ravindran   +7 more
wiley   +1 more source

Juvenile predation overwhelms nutritional effects on female ungulate fat reserves in a high‐predation system

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ungulate body fat reserves reflect the nutritional environment, often serving as a useful indicator of bottom‐up resource availability. However, body fat reserves also integrate energetic costs associated with avoiding predation risk and reproductive effort, and it is ...
Nicole P. Bealer   +5 more
wiley   +1 more source

Demographic buffering in natural populations: A multi‐level perspective

open access: yesJournal of Animal Ecology, EarlyView.
We introduce a multi‐level framework that unites stochastic elasticities with nonlinear selection to test demographic buffering. Applying it across mammals reveals a key insight: ecological robustness to variability often decouples from evolutionary constraint, reshaping how we understand resilience under environmental stochasticity.
Gabriel Silva Santos   +4 more
wiley   +1 more source

Eco‐evolutionary dynamics of partially migratory metapopulations in spatially and seasonally varying environments

open access: yesJournal of Animal Ecology, EarlyView.
Partial seasonal migration is rarely considered in a metapopulation context. Here, Haaland et al. use an eco‐evolutionary model revealing how partially migratory metapopulations may arise and be maintained, and how seasonal migrants may cause effects of local extreme climatic events to percolate through metapopulations across diverging temporal and ...
Thomas R. Haaland   +7 more
wiley   +1 more source

Contrasting properties of predation and scavenging networks governed by megaherbivores in an African savannah

open access: yesJournal of Animal Ecology, EarlyView.
For the first time, predation and scavenging networks are directly compared within a single ecosystem. Using an 8‐year dataset of African mammals, including megaherbivores, this study reveals distinct structural rules and body mass constraints, providing a scalable framework for studying consumer–resource dynamics and ecosystem function.
Solange Alexandra Batista‐Nunes   +5 more
wiley   +1 more source

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