Results 61 to 70 of about 17,355 (265)

Population Density Estimation of Hornbills in the Eastern Part of Huai Kha Khaeng Wildlife Sanctuary, Thailand

open access: yesEnvironment and Natural Resources Journal
Hornbills belong to the Bucerotidae Family, and almost all species within this family are vulnerable to extinction. This study examined the population density of four hornbill species in the eastern part of the rainforest of the Huai Kha Khaeng Wildlife ...
Thanapong Fueakong   +7 more
doaj   +1 more source

A new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae)

open access: yesNordic Journal of Botany, EarlyView.
Revisions of herbarium collections reveal a new combination in Strophopappus (Asteraceae, Vernonieae, Lepidaploinae). Strophopappus comprises nine species occurring in South America, eight of which are endemic to Brazil. Currently, Vernonia riedeliana is treated as a synonym of Strophopappus bicolor.
Danielle Remor   +2 more
wiley   +1 more source

Quantum GIS: il desktop GIS più potente, amichevole e libero

open access: yesGEOmedia, 2009
QuantumGIS is a free and open source GIS It has an intuitive graphical interface, suitable also for first time GIS users, and thanks to the integration with other free software (e.g.
Otto Dassau   +4 more
doaj  

REQUIREMENTS FOR DATABASE STRUCTURE AND FUNCTIONALITY OF THE RECLAMATION SYSTEMS AND HYDRAULIC STRUCTURES

open access: yesМелиорация и гидротехника
Purpose: to analyze research on the use of digital technologies for irrigation systems, the results of which can be used in formulating requirements for the structure and functionality of database for reclamation systems and hydraulic structures ...
Lidiya A. Voyevodina, Maksim A. Myachin
doaj   +1 more source

Guapira leucophylla (Nyctaginaceae, Caryophyllales), a new species from the northern Espinhaço Range of Minas Gerais, Brazil

open access: yesNordic Journal of Botany, EarlyView.
Guapira Aubl. (Nyctaginaceae, Pisonieae) comprises dioecious shrubs and trees widely distributed in the Neotropics and occupying diverse habitats. In the Brazilian Cerrado, the genus occurs in several phytophysiognomies, including Campos Rupestres, a montane rock ecosystem with high levels of endemism but still marked by significant gaps in botanical ...
Danilo Alvarenga Zavatin   +4 more
wiley   +1 more source

ارزیابی و پیش‌بینی تغییرات پوشش/کاربری زمین با استفاده از مدل سلول خودکار- شبکة عصبی مصنوعی (CA-ANN) در دشت داراب استان فارس [PDF]

open access: yesپژوهش‌های آبخیزداری
مقدمه و هدفبررسی شیوة کاربری و نوع پوشش زمین‌، نقش مهمی در برنامه‌ریزی مدیریت و حفاظت منابع ایفا می‌کند و زمینة ارتقاء نگرش اصولی به ساختارهای زیست‌محیطی را فراهم می‌آورد. توسعة شهری به‌طور قابل توجهی بر کاربری و پوشش زمین تأثیرگذار است.
فاطمه عابدی   +3 more
doaj   +1 more source

Eriope barrinhae (Lamiaceae, Hyptidinae), a new montane species from northern Minas Gerais, Brazil

open access: yesNordic Journal of Botany, EarlyView.
In northern Minas Gerais, in the Monte Azul region, the Pico da Formosa mountain remains poorly explored botanically despite recent discoveries of new taxa. During fieldwork at the summit of this mountain, we discovered a distinctive population of Eriope that differs from all known species by a unique combination of morphological characters.
Danilo Alvarenga Zavatin   +4 more
wiley   +1 more source

A GIS‐Based Approach to Modeling Carnivore Activity in the Pleistocene Site of Cova del Rinoceront (Iberian Peninsula)

open access: yesInternational Journal of Osteoarchaeology, EarlyView.
ABSTRACT A significant methodological difficulty in the interpretation of Pleistocene zooarchaeological assemblages is the identification of taphonomic agents that modify and break bones. Carnivores, in particular, have been a main focus, as competition with carnivores may have affected carcass acquisition opportunities for humans in the past.
Gerard Terrón‐Marín   +3 more
wiley   +1 more source

QGIS - Ouvrir des données AutoCAD .DWG dans QGIS (QGIS 3)

open access: yes
Cette fiche présente trois méthodes permettant d’ouvrir et d’afficher des données vectorielles d’AutoCAD (format .DWG) dans QGIS.
openaire   +1 more source

Catchment conversion to agriculture alters freshwater macroinvertebrate community responses to flow disturbance: results from a replicated in‐stream experiment

open access: yesOikos, EarlyView.
Anthropogenic stressors often co‐occur in ecosystems, but their combined impacts are rarely assessed using field experiments. Press disturbances particularly can reshape community dynamics, altering their capacity to withstand or recover from acute pulse disturbances by modifying response diversity.
Bridget E. White   +6 more
wiley   +1 more source

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