Results 91 to 100 of about 48,829 (304)

Interannual, seasonal, and diel variation in soil respiration relative to ecosystem respiration at a wetland to upland slope at Harvard Forest [PDF]

, 2010
Soil carbon dioxide efflux (soil respiration, SR) was measured with eight autochambers at two locations along a wetland to upland slope at Harvard Forest over a 4 year period, 2003–2007.
Bubier, Jill L., Crill, P, Frolking, Steve, Munger, J W, Phillips, Stephen C, Varner, Ruth, Wofsy, Steven C   +6 more
core   +2 more sources

Object-based Dimensionality Reduction in Land Surface Phenology Classification

AIMS Geosciences, 2016
Unsupervised classification or clustering of multi-decadal land surface phenology provides a spatio-temporal synopsis of natural and agricultural vegetation response to environmental variability and anthropogenic activities. Notwithstanding the detailed temporal information available in calibrated bi-monthly normalized difference vegetation index (NDVI)
Brian E. Bunker, Jason A. Tullis, Jackson D. Cothren, Jesse Casana, Mohamed H. Aly   +4 more
openaire   +2 more sources

Shifting relative importance of climatic constraints on land surface phenology [PDF]

Environmental Research Letters, 2018
Land surface phenology (LSP), the study of seasonal dynamics of vegetated land surfaces from remote sensing, is a key indicator of global change, that both responds to and influences weather and climate. The effects of climatic changes on LSP depend on the relative importance of climatic constraints in specific regions—which are not well understood at ...
Garonna, Irene, de Jong, Rogier, Stöckli, Reto, Schmid, Bernhard, Schenkel, David, Schimel, David S, Schaepman, Michael E   +6 more
openaire   +2 more sources

Update on Ouratea cidiana Sastre (Ochnaceae), a microendemic species from the Amazon: enlightening the identity and conservation status

Nordic Journal of Botany, EarlyView.
Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes, Mayara Dias Caldas, Fúvio Rubens Oliveira‐da‐ Silva, Anna Luiza Ilkiu‐ Borges, André dos Santos Bragança Gil   +4 more
wiley   +1 more source

Dicrananthera hedyotidea C. Presl. (Melastomataceae) in Maranhão state, Brazil: first record and ecological niche model of the species

Nordic Journal of Botany, EarlyView.
Dicrananthera C. Presl. is a monospecific genus of the tribe Marcetieae, comprising perennial herbs typically occurring in areas adjacent to wetlands. The species exhibits a disjunct distribution, with confirmed records in both the Amazon and Atlantic Forest domains.
Elias Julio Oliveira Correa, Sandro Márcio dos Santos Junior, Antônio Fernando Costa da Silva, Kalynne Nayara Lima dos Santos, Eduardo Bezerra de Almeida Jr   +4 more
wiley   +1 more source

The Coexistence of Trees, Shrubs, and Grasses Creates a Complex Picture of Land Surface Phenology in Dry Tropical Ecosystems

Remote Sensing
The use of digital cameras to monitor vegetation phenology (phenocams) has become increasingly common as a means of ground truthing estimates of land surface phenology from Earth observation data.
Stephanie P. Koolen, John L. Godlee, Bruna Alberton, Desirée Marques Ramos, Magna Soelma Beserra Moura, Leonor Patricia C. Morellato, Kyle G. Dexter   +6 more
doaj   +1 more source

Novelty for the flora of Espírito Santo, Brazil: a new species of Ouratea Aubl. (Ochnaceae)

Nordic Journal of Botany, EarlyView.
Here, we describe and illustrate the new species Ouratea oberdanii Fraga & Deccache, which is named after Dr Oberdan José Pereira. This new species is found in the mountainous regions of the evergreen Atlantic Forest in the Brazilian state of Espírito Santo. Ouratea oberdanii is similar to O. linearis (A.Gray) Sastre & Offroy and O.
Lara Serpa Jaegge Deccache, Sabrina Vasconcelos Caram, Karen Lúcia Gama De Toni, Leandro Lacerda Giacomin, Claudio Nicoletti de Fraga   +4 more
wiley   +1 more source

Land Surface Phenology from MODIS: Characterization of the Collection 5 Global Land Cover Dynamics Product [PDF]

Information related to land surface phenology is important for a variety of applications. For example, phenology is widely used as a diagnostic of ecosystem response to global change.
Friedl, Mark A., Ganguly, Sangram, Tan, Bin, Verma, Manish, Zhang, Xiaoyang   +4 more
core   +1 more source

Slug grazing effects on seedling and adult life stages of North American Prairie plants used in designed urban landscapes [PDF]

, 2011
Designed vegetation is a major contributor to ecosystem service provision incities, and as such the study of how herbivory and other ecological factors determine its capacity to deliver such services, is long overdue.
Hitchmough, James, Wagner, Markus
core   +2 more sources

Understanding the effects of patch‐burn grazing management on aboveground grassland invertebrate biodiversity

Oikos, EarlyView.
Landscape heterogeneity is widely recognized as a driver of biodiversity, yet its consequences for above‐ground, foliage‐dwelling insect communities under active grassland management remain underexplored. Patch‐burn grazing (PBG), which rotates fire across patches within a grazed landscape, is designed to promote spatial and temporal heterogeneity by ...
Zachary L. T. Bunch, Meghan L. Avolio, Sally E. Koerner, Kevin R. Wilcox, Lydia H. Zeglin, Kimberly J. Komatsu   +5 more
wiley   +1 more source