Results 31 to 40 of about 38,839 (302)

Constructed rock riffles increase habitat heterogeneity but not biodiversity in streams constrained by urban impacts

Ecosphere, 2023
Riffles are heterogeneous habitats that support diverse assemblages in natural streams. They are often constructed as part of stream restoration practice, including in degraded urban stream ecosystems, despite larger scale limits to ecological state ...
Christopher J. Walsh, J. Angus Webb, Daniel C. Gwinn, Peter F. Breen   +3 more
doaj   +1 more source

Harvesting of forest products and implications for Afrotemperate bird communities in a montane forest of the Eastern Cape, South Africa

Forest Ecosystems, 2019
Background Harvesting of forest products is a widespread driver of disturbance in developing nations, where policies are increasingly aimed at managing natural forests for sustainable use. There is thus need for research aimed at understanding the impact
Jessica Leaver, Johann C. Carstens, Michael I. Cherry   +2 more
doaj   +1 more source

The influence of habitat heterogeneity and disturbance on benthic community structure in deep-sea polymetallic nodule environments and management implications for seabed mining

Frontiers in Marine Science
Habitat heterogeneity is known to influence faunal community structure, but its influence on deep-sea benthic communities remains understudied, particularly for polymetallic nodule environments in abyssal waters.
Ailish Ullmann, Ailish Ullmann, Ashley A. Rowden, Ashley A. Rowden, Daniel Leduc, Daniela Zeppilli   +5 more
doaj   +1 more source

Effects of natural phenomena and human activity on the species richness of endemic and non-endemic Heteroptera in the Canary Islands [PDF]

Animal Biodiversity and Conservation, 2004
The geographical patterns of Heteroptera species diversity in the Canary Islands were analysed, and endemic and non–endemic species were studied both together and separately.
Vargas, J. M., Guerrero, J. C., Real, R.   +2 more
doaj  

Management of Protected Areas and Its Effect on an Ecosystem Function: Removal of Prosopis flexuosa Seeds by Mammals in Argentinian Drylands. [PDF]

PLoS ONE, 2016
The ecological function of animal seed dispersal depends on species interactions and can be affected by drivers such as the management interventions applied to protected areas. This study was conducted in two protected areas in the Monte Desert: a fenced
Claudia M Campos, Valeria E Campos, Florencia Miguel, Mónica I Cona   +3 more
doaj   +1 more source

Multi-parametric MR habitat imaging predicts prognosis of glioblastoma

陆军军医大学学报, 2023
Objective To determine the predictive value of median relative cerebral blood volume (rCBVmedian) of each habitat of glioblastoma (GBM) for overall survival (OS) by using multi-parametric MR habitat imaging analysis constructed by dynamic susceptibility ...
LIU Jiachen, LIU Jiachen, CONG Chao, CONG Chao   +3 more
doaj   +1 more source

Vegetation Heterogeneity Effects on Soil Macro-Arthropods in an Alpine Tundra of the Changbai Mountains, China

Plants, 2019
The harsh environmental conditions in alpine tundra exert a significant influence on soil macro-arthropod communities, yet few studies have been performed regarding the effects of vegetation heterogeneity on these communities.
Yan Tao, Zhongqiang Wang, Chen Ma, Hongshi He, Jiawei Xu, Yinghua Jin, Haixia Wang, Xiaoxue Zheng   +7 more
doaj   +1 more source

Anthropogenic Disturbances Influenced the Island Effect on Both Taxonomic and Phylogenetic Diversity on Subtropical Islands, Pingtan, China

Plants
The investigation of taxonomic diversity within island plant communities stands as a central focus in the field of island biogeography. Phylogenetic diversity is crucial for unraveling the evolutionary history, ecological functions, and species ...
Bo Chen, Denghong Xue, Zhihui Li, Lan Jiang, Yu Tian, Jing Zhu, Xing Jin, Jingjing Yang, Chaofa Huang, Jurong Liu, Hai Liu, Jinfu Liu, Zhongsheng He   +12 more
doaj   +1 more source

Optimization of cryptic coloration in heterogeneous habitats [PDF]

Biological Journal of the Linnean Society, 1999
Abstract We present a theoretical approach to the optimization of crypsis in heterogeneous habitats. Our model habitat consists of two different microhabitats, and the optimal combination of crypsis in the microhabitats is supposed to maximize the probability of escaping detection by a predator.
SAMI MERILAITA, JUHA TUOMI, VEIJO JORMALAINEN   +2 more
openaire   +1 more source

The Role of Habitat Heterogeneity in Structuring Mangrove Bird Assemblages

Diversity, 2015
Mangrove habitats are under severe land use pressure throughout the world and Australia is no exception. Here we describe the heterogeneity of mangrove habitat and its relationship with mangrove bird diversity.
Jayasilan Mohd-Azlan, Richard A. Noske, Michael J. Lawes   +2 more
doaj   +1 more source