Results 101 to 110 of about 90,435 (311)

Structural and functional biological assessment of aggregate dredging intensity on the Belgian part of the North Sea [PDF]

, 2014
Marine aggregate dredging in the Belgian part of the North Sea (BPNS) is restricted to four dedicated concession zones. Within these zones, there are areas under different dredging pressure, but with the advantage that these are situated within a similar
De Backer, A., Hillewaert, H., Hostens, K., Van Hoey, G., Wittoeck, J.   +4 more
core  

300 Years of Degradation in Wales Estuaries and Coasts

Natural Resources Forum, EarlyView.
ABSTRACT The world's oceans are in a severe state of degradation, yet our understanding of that degradation is often based on changes observed only in the past 20–50 years. This narrow view leads to marine conservation efforts that aim to preserve already degraded ecosystems, shaped by shifted ecological baselines.
Richard K. F. Unsworth, Blaise Bullimore, Leanne C. Cullen‐Unsworth, Benjamin L. H. Jones   +3 more
wiley   +1 more source

Climatic conditions, landscape, and habitat quality drive patch occupancy and larval density of a threatened mire butterfly

Insect Science, EarlyView.
The Moorland Clouded Yellow (Colias palaeno) benefited from cattle grazing in three different ways by (i) fostering the nectar supply; (ii) enhancing rejuvenation of the host plant (Vaccinium uliginosum); and (iii) improving microclimatic conditions for successful development of the immature stages.
Florian Fumy, Stefan Hafner, Georg Paulus, Thomas Fartmann   +3 more
wiley   +1 more source

Engineering works and the tidal Chesapeake [PDF]

, 1972
The tidal tributaries of the ocean and coastal areas of the mid-Atlantic region and the ecological significance of engineering projects are discussed. The effects of engineering works on maritime environments and resources, with the Chesapeake Bay as the
Hargis, W. J., Jr.
core   +2 more sources

Habitat Features, Coyotes, and Humans Drive Diel Activity Variation Among Sympatric Mammals

Integrative Zoology, EarlyView.
We found that multiple mammal species show considerable variation in diel activity in response to several factors, with biotic variables (habitat features and the presence of coyotes Canis latrans) having the strongest overall effects. Our results have important implications for trophic dynamics. Future studies will need to account for these underlying
Nathan J. Proudman, Maximilian L. Allen
wiley   +1 more source

Managing the Threat of Subsidized Predators for a Threatened Shorebird

Animal Conservation, EarlyView.
Subsidized predators—native predators that have become more common due to human activities—challenge the persistence of many at‐risk prey species and require creative solutions beyond lethal predator control. In an 8‐year study, we placed small wire cages over western snowy plover nests that allow passage of plovers, but not their predators, and ...
R. R. Swaisgood, R. L. Smith, J. G. Schuetz, T. Wooten, L. I. Vilchis   +4 more
wiley   +1 more source

Role of freshwater availability and terrestrial land‐cover change in the distribution of a declining, terrestrial, insectivorous bird

Conservation Biology, EarlyView.
Abstract Insectivorous, Afro‐Palearctic migrant birds provide cross‐border ecosystem services, but many are declining rapidly. The complex life cycle of migrant birds makes their conservation difficult, but understanding where they spend time during the breeding season can help indicate where those actions will be most effective.
Catrin F. Eden, Simon Gillings, Richard K. Broughton, Bart Donato, Chris M. Hewson, Stuart P. Sharp   +5 more
wiley   +1 more source

Unraveling the risk of dredging on river bars for mineral sand mining: an engineering geological approach

Discover Geoscience
Sand mining using dredging technology from channel bars is a common technique worldwide. To minimize adverse effects of dredging, geo-engineering nature of the soil should be evaluated before mining.
Md. Shohel Rana, A.T.M. Shakhawat Hossain, Md. Fuad Hasan, Md. Aminur Rahman, Pradip Kumar Biswas, Mohammad Nazim Zaman   +5 more
doaj   +1 more source

Investigation of bottom fishing impacts on benthic structure using multibeam sonar, sidescan and video [PDF]

, 2005
Bottom fishing gear is known to alter benthic structure, however changes in the shape of the sea floor are often too subtle to be detected by acoustic remote sensing.
Malik, Mashkoor A., Mayer, Larry A.
core   +1 more source

The specifics of non‐routine task changes: A granular approach

Contemporary Economic Policy, EarlyView.
Abstract This paper estimates granular specific non‐routine tasks and examines employment reallocation across those tasks in the United States. Employment shifts into decision‐making, technology, and information‐related tasks account for 90% of high‐wage employment growth.
Carol A. Scotese
wiley   +1 more source