Results 101 to 110 of about 2,395,279 (331)

Mapping phylogenetic endemism in R using georeferenced branch extents

SoftwareX, 2015
Applications are needed to map biodiversity from large-scale species occurrence datasets whilst seamlessly integrating with existing functions in R. Phylogenetic endemism (PE) is a biodiversity measure based on range-restricted phylogenetic diversity (PD)
Greg R. Guerin, Andrew J. Lowe
doaj   +1 more source

Interannual variability of terrestrial net ecosystem productivity over China: regional contributions and climate attribution

Environmental Research Letters, 2019
China’s terrestrial ecosystems play an important role in the global carbon cycle. Regional contributions to the interannual variation (IAV) of China’s terrestrial carbon sink and the attributions to climate variations are not well understood.
Li Zhang, Xiaoli Ren, Jun-Bang Wang, Hong-Lin He, Shao-Qiang Wang, Miaomiao Wang, S. Piao, Hao Yan, W. Ju, Feng-Xue Gu, Lei Zhou, Zhong'en Niu, R. Ge, Yueyue Li, Yan Lv, Huimin Yan, Mei Huang, Gui-Rui Yu   +17 more
semanticscholar   +1 more source

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

The Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison, James Gregory, Christopher Jackson, Jordan Bestwick, Katlin Schroeder, Samuel J.L. Gascoigne, Paul Bills, Laura B. Porro, Philip D. Mannion, Paul M. Barrett   +9 more
wiley   +1 more source

Food supply and size class depending variations in phytodetritus intake in the benthic foraminifer Ammonia tepida

Biology Open, 2018
Ammonia tepida is a common and abundant benthic foraminifer in intertidal mudflats. Benthic foraminifera are primary consumers and detritivores and act as key players in sediment nutrient fluxes.
Julia Wukovits, Patrick Bukenberger, Annekatrin Julie Enge, Maximillian Gerg, Wolfgang Wanek, Margarete Watzka, Petra Heinz   +6 more
doaj   +1 more source

Stimulation of terrestrial ecosystem carbon storage by nitrogen addition: a meta-analysis

Scientific Reports, 2016
Elevated nitrogen (N) deposition alters the terrestrial carbon (C) cycle, which is likely to feed back to further climate change. However, how the overall terrestrial ecosystem C pools and fluxes respond to N addition remains unclear.
Kai Yue, Yan Peng, C. Peng, Wanqin Yang, Xin Peng, Fu-Zhong Wu   +5 more
semanticscholar   +1 more source

Hepatic morphology and serum biochemical profile according to dry and rainy seasons in Pygocentrus nattereri (Characiformes: Serrasalmidae)

The Anatomical Record, EarlyView.
Abstract This study investigated the physiological and morphological adaptations of the liver of the carnivorous fish Pygocentrus nattereri (piranha) in response to seasonal variations (dry and rainy seasons) in the Brazilian Pantanal. The objective was to describe how the liver, a central organ in metabolic regulation, responds to environmental ...
Maria Eduarda Corona Garcia, Sandriely F. Marcondes, Mayara S. Siqueira, Taynara R. F. Leão, Robson A. Rodrigues, Karine N. N. Farias, André L. N. Silva, Karin Virgínia Kuibida, Lilian Franco‐Belussi, Carlos E. Fernandes   +9 more
wiley   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

The Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Terrestrial laser scans - Riegl VZ400, individual tree point clouds and cylinder models, Rushworth Forest

Data was collected at five sampling points in a plot using a cross sampling protocol. To operate the scanner must necessarily be placed in a gap, so any deviations from the nominal sampling location illustration below are outlined in the associated ...

core   +1 more source

Differential roles of deterministic and stochastic processes in structuring soil bacterial ecotypes across terrestrial ecosystems

Nature Communications
Soil bacteria are vital to ecosystem resilience and resistance, yet ecological attributes and the drivers governing their composition and distribution, especially for taxa varying in ecological traits and inhabiting different ecosystems, are not fully ...
Mia Riddley, Shannon Hepp, F. Hardeep, Aruj Nayak, Mei-Mei Liu, Xin Xing, Hai-Long Zhang, Jing-Qiu Liao   +7 more
semanticscholar   +1 more source

Bayesian calibration of terrestrial ecosystem models: a study of advanced Markov chain Monte Carlo methods

, 2017
. Calibration of terrestrial ecosystem models is important but challenging. Bayesian inference implemented by Markov chain Monte Carlo (MCMC) sampling provides a comprehensive framework to estimate model parameters and associated uncertainties using ...
D. Lu, D. Ricciuto, A. Walker, C. Safta, W. Munger   +4 more
semanticscholar   +1 more source