Results 81 to 90 of about 24,201 (252)

Analysis of the Management and Costs Associated with Rearing Pregnant Dairy Heifers in the UK from Conception to Calving [PDF]

open access: yes, 2015
Good management of the pregnant heifer is crucial to ensure that she is well grown and healthy and calves down easily before joining the milking herd.
Boulton, A C, Rushton, J, Wathes, D C
core   +1 more source

Polychromophilus spp. (Haemosporida: Plasmodiidae): First Molecular Detection in Bat Flies From Brazilian Bats

open access: yesIntegrative Zoology, EarlyView.
This study identifies Polychromophilus sp. in blood‐feeding flies (Basilia speiseri and Basilia lindolphoi) from Myotis nigricans bats in Brazil, marking the first molecular detection of the parasite in an insect vector in this country. Two haplotypes were identified, both within the Polychromophilus murinus group.
Bruno S. Mathias   +7 more
wiley   +1 more source

Spatial, Temporal, and Host‐Specificity Patterns of Three Genera of Blood Coccidian Parasites in Two Syntopic Mediterranean Lizards

open access: yesIntegrative Zoology, EarlyView.
Our results indicated that the three genera of blood parasites found in the two species of lizards studied can exhibit distinct epidemiological patterns across microgeographic and temporal scales. ABSTRACT We investigated the phenological variation of three genera of blood parasites of lizards (Schellackia, Karyolysus, and Lankesterella) using samples ...
Claudia Mediavilla   +5 more
wiley   +1 more source

Organic Upland Beef and Sheep Production [PDF]

open access: yes, 2007
The technical guide addresses the issues relevant to the organic beef and sheep sector, acknowledging the questions that are frequently directed to the technical ‘Helpline’ of Organic Centre Wales.
Frost, David   +3 more
core  

Effects of Vector Density on Blood Parasite Spread and Health Consequences for Avian Hosts: An Experimental Epidemiology Blueprint

open access: yesIntegrative Zoology, EarlyView.
In an experimental epidemiology setup, groups of pigeons were exposed to different numbers of infective malaria vectors. Vector number explained the speed of transmission, the final prevalence, and changes in host behavior. ABSTRACT Vector density plays a critical role in the transmission dynamics of vector‐borne diseases and thus in their health and ...
Nayden Chakarov   +3 more
wiley   +1 more source

Using host species traits to understand the consequences of resource provisioning for host–parasite interactions [PDF]

open access: yes, 2017
1.Supplemental food provided to wildlife by human activities can be more abundant and predictable than natural resources, and subsequent changes to wildlife ecology can have profound impacts on host–parasite interactions.
Altizer, Sonia   +2 more
core   +2 more sources

Facilitative interspecific interactions in marine vertebrates across scales: from individuals to ecosystems

open access: yesBiological Reviews, EarlyView.
ABSTRACT Facilitative interspecific interactions (FIIs) confer benefits to at least one participant without detriment to others. Although often less emphasised than antagonistic interactions in ecological studies, this review highlights the significant ecological role of FIIs across biological scales – from individual behaviours to population ...
Eduardo Döbber Vontobel   +5 more
wiley   +1 more source

Sheep blowfly strike: the cost of control in relation to risk

open access: yesAnimal, 2019
Sheep blowfly strike (ovine cutaneous myiasis) is a widespread economic and welfare problem in sheep husbandry in many parts of the world. Strike incidence is determined by a complex interaction of fly abundance, host susceptibility and climate, combined
K. Lihou, R. Wall
doaj   +1 more source

Does foraging efficiency vary with colony size in the fairy martin Petrochelidon ariel? [PDF]

open access: yes, 2009
Colonial breeding occurs in a wide range of taxa, however the advantages promoting its evolution and maintenance remain poorly understood. In many avian species, breeding colonies vary by several orders of magnitude and one approach to investigating the ...
Alexander   +37 more
core   +2 more sources

Effects of temperature and humidity on the presence and prevalence of a common fungal parasite on an invasive ladybird

open access: yesEcological Entomology, EarlyView.
We investigated how temperature and relative humidity influence the parasitic fungus Hesperomyces harmoniae on the invasive ladybird Harmonia axyridis under controlled laboratory conditions. Abiotic factors significantly affect parasitism: High relative humidity increased parasite prevalence, development rate, and load, while both low and high ...
Michiel D. de Groot   +8 more
wiley   +1 more source

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