Results 101 to 110 of about 43,538 (233)

Cambios estacionales en los ensambles de aves en un ecotono bosque-estepa del norte de Patagonia [PDF]

open access: yes, 2018
Estudiamos las variaciones estacionales en una comunidad de aves que habitan el ecotono bosque-estepa del norte de Patagonia. Analizamos los cambios en la riqueza de especies, la composición de especies y la abundancia total, y a nivel de las especies ...
Cueto, Víctor   +1 more
core  

Malta and the Nineteenth Century Grain Trade: British free trade in a microcosm of Empire? [PDF]

open access: yes
It is often assumed that Britain’s colonies followed the British doctrine of free trade in the second half of the nineteenth century. Malta, which became a British colony in 1814, did indeed become an early free trader.
Paul Sharp
core  

Is it possible for a Procellariiform to raise two chicks? A case of chick adoption in Southern Giant petrels Macronectes giganteus in the South Shetland Islands, Antarctica [PDF]

open access: yes, 2010
We report on the adoption of a Southern Giant Petrel Macronectes giganteus chick by a breeding pair on 25 de Mayo Island (King George Island), South Shetland Islands, Antarctica.
Archuby, Diego Ignacio   +5 more
core  

Curva de postura de gallinas Campero Casilda de primer ciclo

open access: yesAb Intus, 2020
Campero Casilda es un cruzamiento evaluado para la producción de carne y propuesto como ave doble propósito para sistemas avícolas alternativos al industrial.
Bernanrdo Martín Romera   +7 more
doaj  

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

Skylab remote bathymetry experiment [PDF]

open access: yes
There are no author-identified significant results in this ...
Lyzenga, D. R., Polcyn, F. C.
core   +1 more source

Meteorological Satellites and Sounding Rockets [PDF]

open access: yes, 1965
TIROS and Nimbus meteorological satellites, and small and large meteorological sounding rocket ...

core   +1 more source

A Typology of Australian Terrestrial Bird Communities

open access: yesDiversity and Distributions, Volume 32, Issue 2, February 2026.
ABSTRACT Aim Holistic measurement of the response of fauna communities to interventions requires suitable community condition metrics. However, the development of such metrics is hindered by the absence of broad‐scale typologies at suitable spatial and ecological resolutions. We aimed to derive a preliminary typology of terrestrial bird communities for
Martine Maron   +40 more
wiley   +1 more source

Ancient DNA & stable isotope profiling of fossil eggshell [PDF]

open access: yes, 2012
Eggshell is frequently encountered within palaeontological and archaeological deposits and due to various chemical and physical properties, it is highly valued as a substrate for geochronology, palaeodietary and palaeoecological applications. Despite the
Oskam, Charlotte
core   +1 more source

Extreme Potomac Floods at Washington D.C. During the Past 500 Years

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Washington D.C. faces one of the highest 100‐year flood risks of any major city along the U.S. East Coast. In addition to storm‐surge inundation during hurricanes and nor'easters, water‐level observations for Washington are strongly skewed by major floods on the Potomac River.
Michael Toomey   +4 more
wiley   +1 more source

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