Results 61 to 70 of about 20,056 (268)

Importance-satisfaction analysis for marine-park hinterlands: A Western Australian case study [PDF]

open access: yes, 2007
Tourist use of national and marine parks continues to increase worldwide. Effective management depends on being able to evaluate the quality of visitors' experiences, as well as protecting the natural environment.
Moore, S.A., Tonge, J.
core   +2 more sources

The costs of extra‐pair behaviours in birds

open access: yesBiological Reviews, EarlyView.
ABSTRACT Extra‐pair behaviours – reproductive behaviours, including those related to copulation and paternity of offspring, amongst animals outside of a social pair bond – have long intrigued behavioural ecologists, particularly from the female animal's perspective.
Jørgen S. Søraker, Jamie Dunning
wiley   +1 more source

Deteriorating habitat suitability and connectivity of waterbirds in the Bohai Sea Rim: Consequences of land use transformation

open access: yesGlobal Ecology and Conservation
Wetlands in the Bohai Sea Rim play an indispensable role in maintaining the stability of waterbird populations on the East Asian-Australian flyway. However, motivated by economic development and urban expansion, coastal wetlands in this region have been ...
Shaoxia Xia   +3 more
doaj   +1 more source

Post-fledging habitat selection of a Purple Heron Ardea purpurea revealed by GPS/GSM telemetry

open access: yesAvocetta, 2021
The Purple Heron is a species of conservation concern in Europe, mainly threatened by the progressive degradation and reduction of wetlands.
Michelangelo Morganti   +4 more
doaj   +1 more source

Comparing autumn duck use of intensely managed wetlands in Michigan using a novel approach

open access: yesThe Journal of Wildlife Management, EarlyView.
Camera traps, a relatively novel method for assessing waterfowl use of wetlands, show ducks in southeastern Michigan are influenced by hunting disturbance, vegetation type, season progression, and diel period. Abstract Socioeconomic value derived from duck hunting has contributed to autumn habitat use becoming a particular focus for the natural ...
Trey McClinton   +2 more
wiley   +1 more source

Population trends, threats, and conservation recommendations for waterbirds in China

open access: yesAvian Research, 2018
Background China is one of the countries with abundant waterbird diversity. Over the past decades, China’s waterbirds have suffered increasing threats from direct and indirect human activities.
Xiaodan Wang   +3 more
doaj   +1 more source

Birds and Climate Change: Ecological Disruption in Motion [PDF]

open access: yes, 2009
Analysis of four decades of Christmas Bird Count observations reveal that birds seen in North America during the first weeks of winter have moved dramatically northward -- toward colder latitudes -- over the past four decades.

core  

The Association of Pregnancy and Scurvy in Indigenous Women and Their Children From the Late Holocene in California (USA)

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT Limited evidence of nutritional deficiencies has been identified in bioarchaeological studies of Native California populations, although isotopic and ethnohistoric research provides evidence of regional, seasonal, and cultural variability in food shortages.
Alyson Caine   +3 more
wiley   +1 more source

Waterbirds

open access: yesWaterbirds
In the floodplain, dense gallery forests, shrublands, large grasslands, exposed mud areas, and seasonally isolated ponds are favorable feeding and breeding grounds for bird species in Tonle Sap Lake. They are home to a number of globally threatened and near-threatened species.
openaire   +2 more sources

From the brink of extinction to regulation: northern Europe's white‐tailed eagles now face density dependence and climate constraints after rapid population growth

open access: yesOikos, EarlyView.
Population growth reflects the combined influence of regulation and density‐independent factors operating through demographic processes. Under exceptional circumstances (e.g. populations recovering from near‐extinction), growth may initially be weakly regulated but typically slows as negative density dependence (NDD) sets in.
Bård‐Jørgen Bårdsen   +2 more
wiley   +1 more source

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