Results 111 to 120 of about 6,021,075 (291)

Ecological and acoustic investigations of jellyfish (Scyphozoa and Hydrozoa) [PDF]

open access: yes, 2008
As the biomass of jellyfish (medusae of the Scyphozoa and Hydrozoa) has risen in numerous locations worldwide, awareness of their potential to exert a controlling influence on marine ecosystems and hinder the recruitment of fish stocks has increased ...
Lynam, Christopher Philip
core   +2 more sources

From apex to base: Uncovering spatial metabolic adaptation in Antarctic mosses

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Antarctic mosses survive extreme cold, desiccation, UV exposure, and oxidative stress. We analyzed three species by separating apical, middle, and basal zones. Each zone showed distinct metabolite patterns and biological roles, revealing spatial metabolic specialization. The results suggest that whole‐plant survival depends on coordinated contributions
Fatima Tuz Zahra   +7 more
wiley   +1 more source

What drives animal responses to high severity fire? The role of functional traits

open access: yesBiological Reviews, EarlyView.
ABSTRACT Fire regimes are changing worldwide, with increases in the frequency, extent, and severity of fires posing growing risks to biodiversity. Fire severity – the degree of habitat alteration following fire – strongly influences both immediate survival and long‐term recovery of fauna.
Grace A. Vielleux   +3 more
wiley   +1 more source

Development of Pelagic Fishing Unit in South Bangka Regency

open access: yes, 2011
Kondisi perikanan di Kabupaten Bangka Selatan masih memiliki beberapa keterbatasan, antara lain kapasitas dan daya jangkau armada penangkapan terbatas, pengetahuan nelayan tentang teknologi penangkapan modern masih rendah, dan kemampuan nelayan lokal ...
Mohalisi, Syaifuddin
core  

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

Modelling regime shifts in the southern Benguela : a frame-based approach [PDF]

open access: yes, 2009
Includes bibliographical references (leaves 83-88).Small pelagic fish populations in productive upwelling systems are characterised by long-term patterns of alternating dominance.
Smith, Michael Douglas
core   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

Plankton vertical migrations - Implications for the pelagic ecosystem [PDF]

open access: yes, 2011
Habitat selection is an important behavior of many organisms. The direction and strength of this behavior is often characterized as a result of a trade off between predator avoidance and obtaining resources. A characteristic example of this trade off may
Haupt, Florian
core   +1 more source

Land birds on atolls: diversity, origin, and function

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl   +6 more
wiley   +1 more source

WHO CAN FISH WHAT AND WHERE: CHILE'S TRADEOFFS IN HIGH SEAS FISHING OF STRADDLING STOCKS [PDF]

open access: yes
Chile has not yet ratified the U.N. 1995 Agreement on straddling/ highly migratory fish stocks. This paper discusses key economic issues at stake from the viewpoint of a coastal state with important stakes in a straddling stock. The Chilean jack mackerel
Pena-Torres, Julio   +2 more
core  

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