Results 61 to 70 of about 135,791 (241)
Suitability of Natura 2000 sites for threatened freshwater species under projected climate change
Abstract As part of the world's largest coordinated network of protected areas, Natura 2000, European Union member states designate special areas of conservation (SACs) to maintain or achieve favourable conservation status for imperilled aquatic species listed under Annex II of the Habitats Directive.
Timo Basen+4 more
wiley +1 more source
Abstract Antlers are the most conspicuous trait of cervids and have been used in the past to establish a classification of their fossil and living representatives. Since the availability of molecular data, morphological characters have generally become less important for phylogenetic reconstructions.
Nicola S. Heckeberg+2 more
wiley +1 more source
Cet article traite de la synthese des formes polyedriques aux fins architecturales. Nous donnons, a titre d’introduction, les methodes geometriques de base a employer. Ensuite nous suivons le developpement de deux projets d’ebauche intimement lies. Le projet # 1 est un complexe d’habitat a densite moyenne.
Baracs, Janos+3 more
openaire +1 more source
Abstract Based on histological cross‐sections, the chondrocranium of the common musk turtle (Sternotherus odoratus) was reconstructed, described, and compared with other turtles. It differs from that of other turtle chondrocrania by possessing elongated, slightly dorsally orientated nasal capsules with three dorsolateral foramina, which might be ...
Luca Leicht+2 more
wiley +1 more source
Abstract The Hyaenodonta were the most diverse carnivorous mammals in the European Eocene and were classically divided into three subfamilies: Sinopaninae, Arfianinae, and Proviverrinae, with this latter being the most successful of the three, as it exhibited a much larger geographic and temporal range.
Manuel J. Salesa+4 more
wiley +1 more source
A diffusive logistic problem with a free boundary in time-periodic environment: favorable habitat or unfavorable habitat [PDF]
We study the diffusive logistic equation with a free boundary in timeperiodic environment. To understand the effect of the dispersal rate $d$, the original habitat radius $h_0$, the spreading capability $\mu$, and the initial density $u_0$ on the dynamics of the problem, we divide the time-periodic habitat into two cases: favorable habitat and ...
arxiv
Unsupervised learning for vascular heterogeneity assessment of glioblastoma based on magnetic resonance imaging: The Hemodynamic Tissue Signature [PDF]
This thesis focuses on the research and development of the Hemodynamic Tissue Signature (HTS) method: an unsupervised machine learning approach to describe the vascular heterogeneity of glioblastomas by means of perfusion MRI analysis. The HTS builds on the concept of habitats.
arxiv
Abstract Eco‐labels inform consumers about the sustainable attributes of a product, but consumer face challenges to differentiate and select for specific attributes. Certification programs are similarly challenged to incentivize adoption of sustainable practices in product supply chains when consumer ability to differentiate sustainable attributes is ...
Nicolas Gatti+5 more
wiley +1 more source
Assessing Agricultural Green Total Factor Productivity in Latin America
ABSTRACT The agricultural sector in Latin America plays a vital role in ensuring food security while impacting the environment. However, there remains a lack of analysis regarding the inputs responsible for pollution within its sub‐technologies. Hence, this article aims to assess agricultural green total factor productivity (TFP) through a novel ...
Tianxiang Li+2 more
wiley +1 more source
Fuel treatment planning: fragmenting high fuel load areas while maintaining availability and connectivity of faunal habitat [PDF]
Reducing the fuel load in fire-prone landscapes is aimed at mitigating the risk of catastrophic wildfires but there are ecological consequences. Maintaining habitat for fauna of both sufficient extent and connectivity while fragmenting areas of high fuel loads presents land managers with seemingly contrasting objectives.
arxiv