Results 31 to 40 of about 579,088 (287)

No Net Loss of Species Diversity After Prescribed Fires in the Brazilian Savanna

Frontiers in Forests and Global Change, 2020
Although savannas are fire-adapted ecosystems, prescribing fire for biodiversity conservation remains controversial at least in some regions where savannas occur.
Giselda Durigan, Giselda Durigan, Natashi A. L. Pilon, Rodolfo C. R. Abreu, Rodolfo C. R. Abreu, William A. Hoffmann, Marcio Martins, Bruno F. Fiorillo, Alexsander Z. Antunes, Ana Paula Carmignotto, Jonas B. Maravalhas, Jésica Vieira, Heraldo L. Vasconcelos   +12 more
doaj   +1 more source

GPP of a Chinese Savanna Ecosystem during Different Phenological Phases Simulated from Harmonized Landsat and Sentinel-2 Data

Remote Sensing
Savannas are widespread biomes with highly valued ecosystem services. To successfully manage savannas in the future, it is critical to better understand the long-term dynamics of their productivity and phenology.
Xiang Zhang, Shuai Xie, Yiping Zhang, Qinghai Song, Gianluca Filippa, Dehua Qi   +5 more
doaj   +1 more source

Ecosystem‐scale effects of megafauna in African savannas

Ecography, 2015
Natural protected areas are critically important in the effort to prevent large‐scale megafaunal extinctions caused by hunting and habitat degradation. Yet such protection can lead to rapid increases in megafauna populations. Understanding ecosystem‐scale responses of vegetation to changing megafaunal populations, such as the case ...
Asner, G., Vaughn, N., Smit, I., Levick, S.   +3 more
openaire   +2 more sources

Estimating Savanna Clumping Index Using Hemispherical Photographs Integrated with High Resolution Remote Sensing Images

Remote Sensing, 2017
In contrast to herbaceous canopies and forests, savannas are grassland ecosystems with sparsely distributed individual trees, so the canopy is spatially heterogeneous and open, whereas the woody cover in savannas, e.g., tree cover, adversely affects ...
Jucai Li, Wenjie Fan, Yuan Liu, Gaolong Zhu, Jingjing Peng, Xiru Xu   +5 more
doaj   +1 more source

Disease and fire interact to influence transitions between savanna-forest ecosystems over a multi-decadal experiment. [PDF]

, 2021
Global change is shifting disturbance regimes that may rapidly change ecosystems, sometimes causing ecosystems to shift between states. Interactions between disturbances such as fire and disease could have especially severe effects, but experimental ...
Andrew M. Hein, Adam F. A. Pellegrini, Jeannine Cavender‐Bares, Silla, Fernando, Fernando Silla, Sarah E. Hobbie, Staver, A. Carla, Rebecca A. Montgomery, Peter B. Reich, Pellegrini, Adam F., Reich, Peter B. (R16861), Cavender-Bares, Jeannine, Hein, Andrew M., A. Carla Staver, Montgomery, Rebecca A., Hobbie, Sarah E.   +15 more
core   +3 more sources

Impacts of climate extremes on vegetation health in the tropical savannas of Africa

Global Ecology and Conservation
The tropical savanna of Africa, which covers 65 % of the continent, supports livelihood, livestock, crops and wildlife, playing an important role in socio-economic development in Africa. However, these ecosystems experience high temperatures and distinct
Jeanine Umuhoza, Guli Jiapaer, Yu Tao, Jie Bai, Egide Hakorimana, Liancheng Zhang, Hongwu Liang, Kaixiong Lin, Tongwei Ju   +8 more
doaj   +1 more source

Palatability of geophyte underground storage organs partially explains their depth in the Cape Floristic Region, geophyte capital of the world

American Journal of Botany, EarlyView.
Abstract Premise The soil depth of underground storage organs (USOs) of geophytes involves cost–benefit trade‐offs and may relate to USO age, size, and disturbances such as fire and herbivory. Yet determinants of USO depth are poorly studied. We posit that belowground mammalian predation of USOs is a selective force for the positive relationship ...
Tineke Kraaij, Elzanne Singels, Félix Forest, Karen J. Esler, Richard M. Cowling   +4 more
wiley   +1 more source

Amazonian savannas are an integral part of Brazil’s Amazon “biome”: implications for environmental policies

Discover Conservation
Conservation policies in Brazil differ between the “biomes” into which the country has divided its territory since 2004. The Amazon biome is predominantly tropical forest but also includes unique savanna ecosystems, while the Cerrado biome is composed of
William Douglas Carvalho, Salustiano V. Costa-Neto, Fernando Cesar Paiva Dagosta, Philip M. Fearnside, Renato Richard Hilário, Hernani Fernandes Magalhães de Oliveira, Cláudia Regina da Silva, José Julio de Toledo, Bruna Silva Xavier, Karen Mustin   +9 more
doaj   +1 more source

Teatime in Kruger: Tailoring the application of the Tea Bag Index approach to an African savanna

South African Journal of Science, 2021
Attempts to obtain standardised decomposition data to determine potential drivers of carbon release have evolved from the use of cotton strips and standardised leaf litter mixtures to the most recent Tea Bag Index (TBI).
Loewan L. Erasmus, Helga van Coller, Frances Siebert   +2 more
doaj   +1 more source

Dynamics of biotic resistance to plant invasions

Biological Reviews, EarlyView.
ABSTRACT Biotic resistance, the reduction in invasion success caused by native communities, plays an important role in the long‐term dynamics of biological invasions. A large body of empirical research on biotic resistance has accumulated since the last comprehensive review on the subject 20 years ago, enabling us to achieve a refined understanding of ...
Christine S. Sheppard, Joshua I. Brian, Wayne Dawson, Petr Dostál, Franz Essl, Michal Gruntman, Tina Heger, Mark van Kleunen, Mialy Razanajatovo, Lena C. Reimann, Frank M. Schurr, Montserrat Vilà, Florencia A. Yannelli, Marina Golivets   +13 more
wiley   +1 more source