Results 111 to 120 of about 1,878 (248)

Biomagnificación de mercurio en la cadena trófica del Delfín Moteado del Atlántico(Stenella frontalis), usando el isótopo estable de nitrógeno como marcador ecológico

, 2017
An assessment of mercury (Hg) concentrations and nitrogen stable isotope (δ15N) was conducted in the food chain of the Atlantic spotted dolphin (Stenella frontalis), including phytoplankton, zooplankton, planktivorous fish and its major prey (predatory ...
Almeida, Marcelo G, de Moura, Jailson F., Siciliano, Salvatore, Kehrig, Helena do A, Rezende, Carlos Eduardo, Baptista, Gilberto, Moreira, Isabel, Di Beneditto, Ana Paula Madeira   +7 more
core  

Estimating the total mortality of seabirds following a marine heat wave

Conservation Biology, EarlyView.
Abstract Marine heat waves detrimentally affect a range of marine species, including seabirds, and are increasing in frequency and severity. When thousands of dead seabirds wash up on beaches, the public becomes concerned. However, the number of dead birds recorded on beaches is only a fraction of the total mortality; most birds perish at sea.
Jennifer L. Lavers, William Fulton, Silke Stuckenbrock, Alexander L. Bond   +3 more
wiley   +1 more source

A framework for maximizing the benefit from retaining regrowth on private land

Conservation Biology, EarlyView.
Abstract Conservation interventions often have lower‐than‐desired positive impacts, as revealed by retrospective counterfactual‐based evaluations. To address this, a prospective counterfactual‐based approach can be used to estimate potential benefits and design conservation interventions to maximize outcomes. We developed a framework for estimating the
Hannah Thomas, Jeremy S. Simmonds, Michelle S. Ward, Laura J. Sonter, Martine Maron   +4 more
wiley   +1 more source

Identifying hotspots of faunal data deficiency to direct urgent research and monitoring

Conservation Biology, EarlyView.
Abstract Data deficiency is a substantial challenge for extinction risk assessments because incomplete data means we cannot accurately identify priority protected areas for conservation. Here, we use the International Union for Conservation of Nature (IUCN) distributions of amphibians, sharks and rays, fish, mammals, birds, and reptiles to identify ...
Matt W. Hayward, Danielle Verdon‐Kidd, K. Colyvas, Ellen Saxon, Andrea S. Griffin   +4 more
wiley   +1 more source

Primary production and phytoplakton photosynthetic in the southeastern Brazilian coast

, 1990
Taxas de produção primária do fitoplâncton (C-14) foram obtidas em 14 estações da plataforma intermediária e áreas oceânicas da região sueste do Brasil, no inverno de 1982 e outono de 1983.0 cálculo da produção na zona eufórica foi feito utilizando-se o método in situ simulado.
openaire   +1 more source

Conservation priorities for Neotropical water striders (Hemiptera: Heteroptera: Gerridae) under climate change

Conservation Science and Practice, EarlyView.
Hydrologic changes driven by climate change are affecting aquatic biota in the Neotropical Region, with significant impacts on water striders. Species distribution models predict an increase in conservation importance for the northern Andes and coastal areas of eastern South America, while central South America shows a decline. The observed changes are
Leticia Nery, Thiago Bernardi Vieira, Felipe Ferraz Figueiredo Moreira   +2 more
wiley   +1 more source

Variação espacial e temporal de uma taxocenose de caprelídeos (Crustacea: Amphipoda) em um ecossistema subtropical sujeito à poluição por hidrocarbonetos de petróleo

, 2010
The petroleum demand, as so as the commerce of its derivates, has caused the introduction of these compounds in marine ecosystems. The transportation and the extraction of petroleum cause severe accidents, impacting coastal ecosystems through a lot of ...
Silva, Danilo Balthazar
core  

Do Resource‐Constrained Small Private Firms Support Incumbent or Nonincumbent Factions? Evidence From Chinese Township and Village Enterprises

Economics &Politics, EarlyView.
ABSTRACT Research on corporate political strategy emphasizes firm—government engagement but largely treats governments as unitary and political alignment as stable. Drawing on stakeholder theory and the behavioral theory of the firm (BTOF), this study challenges these assumptions by examining how resource‐constrained small private firms navigate ...
Lee Li, Gongming Qian
wiley   +1 more source

Anastrepha grandis: Distribution, Host Plants, and Management—A Review

Entomologia Experimentalis et Applicata, EarlyView.
This graphic summary illustrates the databases and languages used in the bibliographic search for the review of the geographic distribution of Anastrepha grandis (Diptera: Tephritidae) in the Americas and different regions of Brazil, the main host plants of the Cucurbitaceae family, the management strategies used, and the main challenges related to the
Liz Maria Matilde Duarte, Manoel Araécio Uchoa, Isaias de Oliveira   +2 more
wiley   +1 more source

Lack of Compliance in Gillnet Fisheries Regulations Increases Risk to a Vulnerable Species

Fisheries Management and Ecology, EarlyView.
ABSTRACT This article presents an analysis of regulatory compliance in a Brazilian gillnet fishery, based on Vessel Monitoring System (VMS) tracking data. Satellite transmissions records, interpreted as proxies for gillnet haulings events, were analyzed and classified using a neural network to assess the level of compliance of the gillnet fleet.
Rodrigo Claudino dos Santos, Eduardo R. Secchi, Joanna Turner, Luis Gustavo Cardoso   +3 more
wiley   +1 more source