Ecology
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Recent papers in Ecology
Three grasses (Poaceae) of different C 4 subtypes, Paspalum dilatatum (NADP-malic enzyme [ME]), Cynodon dactylon (NAD-ME) and Zoysia japonica (phosphoenolpyruvate carboxykinase), occur in natural habitats that differ in annual rainfall.... more
Keystone plants that produce seasonally critical trophic resources comprise one of the main classes of keystone species, yet no studies have attempted to examine the ecological attributes that might help us recognize them and evaluate... more
Environmental conditions can influence the physiology of marine organisms and have important implications for their reproductive performance and capacity to supply new recruits. This study examined the seasonal reproductive patterns of... more
A proposal for a progressive alliance, a multi-party non-Tory electoral pact, has been bouncing around the UK political discourse for the last few years. To some it’s an appealing idea whose time might come, just as it has in the past,... more
Three interconnected positions are advocated: (1) although serving as a useful model, the immune self does not exist as such; (2) instead of a self/nonself demarcation, the immune system 'sees' itself, i.e., it does not ignore the... more
The endemic Hawaiian genus Brighamia (Campanulaceae) comprises two federally endangered, morphologically similar species, B. insignis from Kaua'i and Ni'ihau and B. rockii from Moloka'i. To assist the design of conservation management... more
Thirty-seven years of fisheries records covering a fishing area of 6231 ha in the lower Havel River, Germany, have been analysed to address two issues: (1) detection of the effects of habitat bottlenecks caused by extreme floods and... more
An early classic of ecological writing
"This chapter discusses how models, combined with modern data sources and statistical methods, can be used to test different hypotheses about the causes of migration. Mathematical formalisms for migration are presented. The ecological... more
Three processes, production, usage, and response, can be used to describe vocal ontogeny. They may develop independently of each other for a given vocalization and a given species as a result of the different selective pressures... more
The Middle Awash paleontological study area, located in the Afar Rift of Ethiopia, has yielded fossils spanning the last six million years. The geology and geochronology of the Mio-Pliocene sites of the study area have been refined and a... more
Kurzfassung: Triassische Ichthyosaurier sind weit verbreitet und sehr vielgestaltig, aber die meisten Formen sind schlecht bekannt. Neue Funde, wie sie hier beschrieben werden, unterstreichen die erste Feststellung, lassen die zweite aber... more
A historiadora Carolyn Merchant investigou como os sistemas naturais têm sido descritos como um organismo geocósmico cujo papel fértil foi francamente feminizado ao longo do tempo. O platonismo introduziu a dicotomia entre os planos da... more
The skins of phyllomedusine frogs have long been considered as being tremendously rich sources of bioactive peptides. Previous studies of both peptides and cloning of their precursor encoding cDNAs have relied upon methanolic skin... more
Ediacaran fronds are iconic members of the soft-bodied Ediacara biota, characterized by disparate morphologies and wide stratigraphic and environmental ranges. As is the case with nearly all Ediacaran forms, views of their phylogenetic... more
The Moenave Formation was deposited during latest Triassic to earliest Jurassic time in a mosaic of fluvial, lacustrine, and eolian subenvironments. Ephemeral streams that flowed north-northwest (relative to modern geographic position)... more
Wang, Y., Shih, C., Szwedo, J. & Ren, D. iFirst article. New fossil palaeontinids (Hemiptera, Cicadomorpha, Palaeontinidae) from the Middle Jurassic of Daohugou, China. Alcheringa, 1–12. ISSN 0311-5518.A new genus and species assigned to... more
The golden cownose ray, Rhinoptera steindachneri, was one of the most abundant species landed in artisanal elasmobranch fisheries in the northern Gulf of California (Baja California and Sonora) and Bahía Almejas, Mexico during 1998-1999.... more
Since the beginning of the 21st century, electronic monitoring (EM) has emerged as a cost-efficient supplement to existing catch monitoring programmes in fisheries. An EM system consists of various activity sensors and cameras positioned... more
In 1985 archaeological excavations at Stavanger Airport, Sola, south-western Norway, revealed evidence for five phases of human activity ranging in age from the Mesolithic to the Late Bronze Age. The two youngest phases, namely 4 and 5... more
We quantified the diet of the Chilean Hawk (Accipiter chilensis) by analyzing 495 prey remains collected during two breeding seasons (2001-2002 and 2002-2003) in an Andean Nothofagus forest of Nevados de Chillán, northern Patagonia. The... more
The flow regimes of temperate large lowland rivers are manipulated to provide various services for society. Most water policy decisions are based on economic considerations, with little or no consideration toward fish conservation and... more
Health care is ubiquitous in the lives of industrialized people. Yet, every medical development, technique, and procedure impact the environment. Green Bioethics synthesizes environmental ethics and biomedical ethics, thus creating an... more
While species have historically been introduced to new areas of the world in order to be used as food sources, many species are now being viewed as food sources subsequent to having been seen as invasive to an ecosystem. One management... more
A phylogeny based on nrITS1 and trnL-F sequences resolves the Lejeunea tumida species group polyphyletic with individuals belonging in two clades either side of the basal-most node within Lejeunea. It is impossible for the Lejeunea tumida... more
The local densities of heterospecifics and conspecifics are known to have profound effects on the dynamics of many benthic species, including rates of settlement and early post-settlement survivorship. We described the early life history... more
Last year, at this conference, I discussed how distinctions between nature and culture, and humans and animals, can arise from the technical processes of food production (see "Food as an object of cultural technical study "). Drawing on... more
A broad international agenda for research and education in systemic sustainability, holism, and anticipation is needed to meet the challenges of sustainability science and to anticipate a better future. We propose a new scientific and... more
Rudolf Steiner's Agriculture Course at Koberwitz (now Kobierzyce), in the summer of 1924, was the gateway event that led to the development of biodynamic agriculture and, subsequently, organic agriculture. The present paper identifies for... more
Ever since J.B.S. Haldane proposed the idea, evolutionary biologists are aware that individual level adaptations do not necessarily lead to optimal population performance. A few deeply mathematical models, drawing from a diverse range of... more
The metacommunity framework explores the relative influence of local and regional-scale processes in generating diversity patterns across the landscape. Metacommunity models and empirical studies have focused mostly on assemblages of... more
We developed a database of 10 wild vertebrate populations whose declines to extinction were monitored over at least 12 years. We quantitatively characterized the final declines of these well-monitored populations and tested key... more
The limits of the planet and of natural resources impede pursuing the modern project based on permanent growth and represent a major challenge for humanity. Drawing on an agency-centred approach, this paper... more
Live (Rose Bengal stained) benthic foraminifera were investigated in surface sediment samples from the Okhotsk Sea to reveal the relationship between faunal characteristics and environmental parameters. Live benthic foraminifera were... more
Not-guilty verdicts, mistrials, and impunity for the Bundy family and many of their supporters in the armed confrontations over public land use in Nevada and Oregon. Expanded access for private oil, gas, mining, and logging industries and... more
was based on isolated teeth from the Maastrichtian phosphatic deposits of Morocco. The recent discovery of new material, including skull and mandibular remains, improves our knowledge of this species. M. beaugei shares the following... more
AS IT SAYS, WITH PICTURES AND TECHNICAL EXPLANATIONS.
The vast majority of the world's rivers are now being tapped for their water supplies, yet only a tiny fraction of these rivers are protected by any sort of environmental flow standard. While important advances have been made in reducing... more
Increased agricultural intensification has led to well-documented declines in the fauna and flora associated with intensive grasslands in the UK. We aimed to quantify the effectiveness of different field margin management strategies for... more
Working across earth and social sciences, this article reevaluates resilience’s conceptual framework, drawing out alternative pathways for understanding and responding to the dislocations of the Anthropocene. Via a critical reading of the... more
This paper outlines the national approach to stormwater management in Malaysia, and evolving implementation practices by State and Local government authorities. The process of departing from the traditional, monodisciplinary approach is... more
Six cunaxid species of three known genera, including one new species are reported for the first time from Iran. The known species are Coleobonzia saaymani , Coleoscirus simplex ), Coleoscirus buartsus Den Heyer, 1980b, Coleoscirus... more