Results 91 to 100 of about 149,842 (327)

Diets of shags Phalacrocorax aristotelis and cormorants P. carbo in Norway and possible implications for gadoid stock recruitment [PDF]

open access: yes, 1990
The diets of shags and cormorants were studied in Norway through analyses of regurgitated pellets. Although this method has many limitations, indications were that both species rely heavily on small gadoids (Gadidae) and sand eels (Ammodytidae) for food ...
Barrett, R. T.   +3 more
core   +1 more source

Are agrochemical‐free and biodiversity‐friendly attributes substitutes or complements? Evidence from a coffee choice experiment

open access: yesAgribusiness, EarlyView.
Abstract Eco‐labels inform consumers about the sustainable attributes of a product, but consumer face challenges to differentiate and select for specific attributes. Certification programs are similarly challenged to incentivize adoption of sustainable practices in product supply chains when consumer ability to differentiate sustainable attributes is ...
Nicolas Gatti   +5 more
wiley   +1 more source

Sustainable Protection of the Lesser Spotted Eagle in Germany by Purchasing Land and Managing the Reproduction Rate

open access: yesПернатые хищники и их охрана, 2018
The Lesser Spotted Eagle (Clanga [Aquila] pomarina) is the most endangered German eagle species, and is close to extirpation in the country. Various factors are responsible for the decline of the population, and the shrinking of its distribution to a ...
Bernd-Ulrich Meyburg   +12 more
doaj  

Insectivorous birds eavesdrop on the pheromones of their prey

open access: yesPLOS ONE, 2018
Chemical cues play a fundamental role in mate attraction and mate choice. Lepidopteran females, such as the winter moth (Operophtera brumata), emit pheromones to attract males in the reproductive period. However, these chemical cues could also be eavesdropped by predators.
Irene Saavedra, Luisa Amo
openaire   +6 more sources

Prevalence of Sarcocystis calchasi in free-ranging host species: Accipiter hawks and Common Woodpigeon in Germany [PDF]

open access: yes, 2012
The apicomplexan parasite Sarcocystis calchasi (S. calchasi) triggers pigeon protozoal encephalitis, a neurologic disease in columbids. Accipiter hawks have been identified as the final host, and Columbidae and Psittaciformes as intermediate hosts.
Ciruela, Antonio   +6 more
core   +1 more source

Impacts of geopolitics and policy on Latin American biodiversity and water resources

open access: yesAgribusiness, EarlyView.
Abstract Latin America is a major agricultural producer with important natural resources. Efforts have been made to protect sensitive areas but are hindered by agricultural trade disruptions outside the control of individual countries due to globally integrated crop markets.
Jerome Dumortier   +2 more
wiley   +1 more source

Can outsourcing pest and disease control help reduce pesticide expenditure? Evidence from rice farmers

open access: yesAgribusiness, EarlyView.
Abstract Outsourcing pest and disease control (PDC) has grown rapidly worldwide, especially in developing countries. Although numerous studies have investigated various advantages of outsourcing PDC, little is known about its impact on pesticide expenditure.
Pengcheng Wang   +2 more
wiley   +1 more source

The role of UV in crab spider signals: effects on perception by prey and predators [PDF]

open access: yes, 2005
Australian crab spiders Thomisus spectabilis sit on the petals of flowers and ambush prey such as honeybees. White-coloured T. spectabilis reflect in the UV (UV+ spiders) and previous research has shown that their presence, curiously, attracts honeybees ...
Cheng, K   +4 more
core   +1 more source

Traceability of Agri‐Food Products: The Key to Conscious Trade

open access: yesAgribusiness, EarlyView.
ABSTRACT Globalization and growing concerns about sustainability have led to improvements in product traceability, quality, and sustainability. Traceability contributes to environmental protection and supports sustainable development by fostering transparency in agricultural practices and encouraging the responsible use of resources.
Scarlett Queen Almeida Bispo   +5 more
wiley   +1 more source

Monitoring and Research on Wading Birds in the Water Conservation Areas ofthe Everglades: The 1996 Nesting season [PDF]

open access: yes, 1996
This project was initiated to continue monitoring reproductive responses of wading birds in the central Everglades, and to investigate two areas of research considered key to understanding and managing wading birds: nestling energetics, and factors ...
Frederick, Peter C.   +2 more
core  

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