Results 31 to 40 of about 4,234,405 (332)

A Truncation Model for Estimating Species Richness [PDF]

The International Journal of Biostatistics, 2018
Abstract We propose a truncation model for the abundance distribution in species richness estimation. This model is inherently semiparametric and incorporates an unknown truncation threshold between rare and abundant observations. Using the conditional likelihood, we derive a class of estimators for the parameters in this model by ...
Babagnidé François Koladjo, Elisabeth Gassiat, Mesrob I. Ohannessian   +2 more
openaire   +4 more sources

Recovery of plant species richness during long-term fertilization of a species-rich grassland [PDF]

Ecology, 2011
Nutrient enrichment of habitats (eutrophication) is considered to be one of the main causes of plant diversity decline worldwide. Several experiments have shown a rapid loss of species in the first years after fertilization started. However, little is known about changes in species richness in the long term.
Pierik, M., van Ruijven, J., Bezemer, T.M., Geerts, R.H.E.M., Berendse, F.   +4 more
openaire   +3 more sources

Predicting coral species richness: the effect of input variables, diversity and scale. [PDF]

PLoS ONE, 2014
Coral reefs are facing a biodiversity crisis due to increasing human impacts, consequently, one third of reef-building corals have an elevated risk of extinction.
Zoe T Richards, Jean-Paul A Hobbs
doaj   +1 more source

Impacts of species richness on productivity in a large-scale subtropical forest experiment

Science, 2018
Tree diversity improves forest productivity Experimental studies in grasslands have shown that the loss of species has negative consequences for ecosystem functioning. Is the same true for forests? Huang et al.
Yuanyuan Huang, Yuxin Chen, Nadia Castro-Izaguirre, Martin Baruffol, Matteo Brezzi, Anne Lang, Ying Li, W. Härdtle, G. von Oheimb, Xuefei Yang, Xiaojuan Liu, Ke-quan Pei, S. Both, Bo Yang, D. Eichenberg, T. Assmann, J. Bauhus, T. Behrens, F. Buscot, Xiao‐Yong Chen, D. Chesters, B. Ding, W. Durka, Alexandra Erfmeier, Jingyun Fang, M. Fischer, Liang-Dong Guo, Dali Guo, J. Gutknecht, Jin-Sheng He, Chun-Ling He, A. Hector, Lydia Hönig, Renyong Hu, A. Klein, P. Kühn, Yu Liang, Shan Li, S. Michalski, M. Scherer‐Lorenzen, K. Schmidt, T. Scholten, Andreas Schuldt, Xuezheng Shi, Man-zhi Tan, Zhiyao Tang, Stefan Trogisch, Zhengwen Wang, E. Welk, C. Wirth, T. Wubet, W. Xiang, Mingjian Yu, Xiao-dong Yu, Jiayong Zhang, Shouren Zhang, Naili Zhang, Hongzhang Zhou, Chaodong Zhu, Li Zhu, H. Bruelheide, K. Ma, P. Niklaus, B. Schmid   +63 more
semanticscholar   +1 more source

Latitudinal gradient in Gnomeskelus species richness [PDF]

Arthropods, 2020
The Tropical Conservativism Hypothesis suggests processes of speciation, extinction and dispersal resulted in higher species richness at the tropics and declined away from the equator. Biogeographical Conservativism Hypothesis suggests that the processes
Mark Cooper
doaj  

The Importance of Including Soil Properties When Disentangling the Drivers of Species Richness: The Case of the Alpine Genus Saxifraga L. in China

Frontiers in Ecology and Evolution, 2020
Despite the numerous studies on the large-scale patterns of species richness, the spatial variation and determinants of species richness for the alpine plants are still an outstanding question and critical to future biodiversity conservation.
Lian Liu, Ying Xu, Yigong Tang, Weihua Du, Chen Shao, Jianyong Wu, Lina Zhao, Lei Zhang, Jianquan Liu, Xiaoting Xu   +9 more
doaj   +1 more source

Species richness and turnover patterns for tropical and temperate plants on the elevation gradient of the eastern Himalayan Mountains

Frontiers in Ecology and Evolution, 2022
Understanding species’ elevational distributions in mountain ecosystems is needed under climate change, but remote biodiverse mountain areas may be poorly documented. National Forest Inventories (NFIs) offer a potential source of data.
James H. Thorne, Hyeyeong Choe, Lobzang Dorji, Kezang Yangden, Dorji Wangdi, Younten Phuntsho, Karen Beardsley   +6 more
doaj   +1 more source

The enigma of soil animal species diversity revisited: the role of small-scale heterogeneity. [PDF]

PLoS ONE, 2010
"The enigma of soil animal species diversity" was the title of a popular article by J. M. Anderson published in 1975. In that paper, Anderson provided insights on the great richness of species found in soils, but emphasized that the mechanisms ...
Uffe N Nielsen, Graham H R Osler, Colin D Campbell, Roy Neilson, David F R P Burslem, René van der Wal   +5 more
doaj   +1 more source

Biodiversity change is uncoupled from species richness trends: Consequences for conservation and monitoring

, 2018
Global concern about human impact on biological diversity has triggered an intense research agenda on drivers and consequences of biodiversity change in parallel with international policy seeking to conserve biodiversity and associated ecosystem ...
H. Hillebrand, B. Blasius, E. Borer, Jonathan M. Chase, J. Downing, B. K. Eriksson, Chris T. Filstrup, W. Harpole, Dorothee Hodapp, Stefano Larsen, A. Lewandowska, E. Seabloom, D. Waal, A. Ryabov   +13 more
semanticscholar   +1 more source

The more-individuals hypothesis revisited: the role of community abundance in species richness regulation and the productivity-diversity relationship.

Ecology Letters, 2018
Species richness increases with energy availability, yet there is little consensus as to the exact processes driving this species-energy relationship. The most straightforward explanation is the more-individuals hypothesis (MIH).
D. Storch, Eliška Bohdalková, J. Okie
semanticscholar   +1 more source