Results 61 to 70 of about 5,897 (241)

Beach Cycle and Beach-face Slope on Sandy Beaches.

open access: yesKikan Chirigaku, 1998
砕波帯相似パラメーターで近似される, 波の砕波区分図を用いて, ビーチサイクルにおける波の波形勾配とビーチフェイス勾配の関係のモデル的な考察を試みた。ビーチフェイス勾配の経験式より, 波の周期および底質粒径を一定とすると, 沖波波高が大きくなれば, ビーチフェイス勾配は小さくなり, 沖波波高が小さくなるとビーチフェイス勾配は大きくなる。この関係は, 砕波区分図上で, 反時計回りのループとして表すことができる。また, 砕波帯相似パラメーターにより, 砕波型式, 波の反射率, 相対打ち上げ高さが, ビーチサイクルに関連付けられる。
openaire   +2 more sources

Taxonomic and functional diversity of noctuoid moths in a Mediterranean coastal area: implications for dune conservation in a long‐term ecological research eLTER site

open access: yesInsect Science, EarlyView.
This study investigates the taxonomic and functional diversity of noctuoid moths in a protected coastal dune system in Central Italy, revealing strong ecological associations between moth assemblages and dune zonation. Differences in species composition and trait attributes, along with the presence of habitat‐exclusive species, highlight the role of ...
Micaela del Valle Rasino   +5 more
wiley   +1 more source

Impacts of human disturbance on ghost crab burrow morphology and distribution on sandy shores.

open access: yesPLoS ONE, 2018
Ghost crabs have been widely used as a bio-indicator species of human impacts on sandy beaches to obtain reliable biological data for management and conservation purposes.
Mustafa R Gül, Blaine D Griffen
doaj   +1 more source

Managing the Threat of Subsidized Predators for a Threatened Shorebird

open access: yesAnimal 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   +4 more
wiley   +1 more source

GLOBAL SANDY BEACH AREAS

open access: yesCoastal Engineering Proceedings
Approximately 30% of the global ice-free coastline is stated to be sandy (Luijendijk et al., 2018). Sandy beaches hold an important socio-economic value related to tourism and recreation and simultaneously fulfill various ecosystem services like providing food, water and maintaining biodiversity. Sandy systems are among the most dynamic environments in
Etiënne Kras   +4 more
openaire   +1 more source

Complementarity in alliances: How strategic compatibility and hierarchy promote efficient cooperation in international security

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract How can defense alliances reap the efficiency gains of working together when coordination and opportunism costs are high? Although specializing as part of a collective comes with economic and functional benefits, states must bargain over the distribution of those gains and ensure the costs of collective action are minimized.
J. Andrés Gannon
wiley   +1 more source

How to Fish With Respect: A Transformation of Human‐Fish Relations in Riverside Amazonia

open access: yesAmerican Anthropologist, EarlyView.
ABSTRACT Riverside inhabitants of the Middle Xingu River Basin, in the Brazilian Amazonia, frequently say that it is important to respect animals and the forest spirits who protect them. In recent decades, however, the development of an iced fish industry in the region has changed what respect means and how it is expressed when it comes to fishing ...
Vinicius de Aguiar Furuie
wiley   +1 more source

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

open access: yesArchaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather   +11 more
wiley   +1 more source

Assessing the Vulnerability of an Inuit Archaeological Site in a Changing Periglacial Environment: A Novel Multimethod Geophysical Approach in Arctic Geoarchaeology

open access: yesArchaeometry, EarlyView.
ABSTRACT With northern regions warming at twice the global rate, assessing the state of archaeological sites in these areas is critically important. In this study, we used a multimethod geophysical approach (ERT, GPR, and EMI) to characterize the current geocryological conditions of an Inuit archaeological site on South Aulatsivik Island (Labrador ...
Rachel Labrie   +5 more
wiley   +1 more source

Managing retreat for sandy beach areas under sea level rise. [PDF]

open access: yesSci Rep, 2023
Setter RO   +7 more
europepmc   +1 more source

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