Importance of habitat diversity to changes in benthic metabolism over land-use gradients: evidence from three subtropical estuaries

2019 ◽  
Vol 631 ◽  
pp. 31-47 ◽  
Author(s):  
JJ Chen ◽  
NS Wells ◽  
DV Erler ◽  
BD Eyre
Keyword(s):  
Land Use ◽  
Habitat Diversity ◽  
Benthic Metabolism ◽  
Subtropical Estuaries

scholarly journals Rapid Assessment and Ground Truthing of Habitat Composition and Analysis of Semi-Natural Habitat Diversity of Proposed Greenway Developments

2019 ◽  
Vol 77 ◽  
pp. 1-18
Author(s):  
Julien Carlier ◽  
James Moran
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Green Infrastructure ◽  
Natural Habitat ◽  
Rapid Assessment ◽  
Habitat Diversity ◽  
Matrix Composition ◽  
Natural Habitats ◽  
Land Use Intensification ◽  
Ground Truthing

Across Europe, Greenways upcycle disused railway infrastructure into non-motorised public infrastructure, often with limited consideration to potential ecological synergies. Pre-development, disused transport corridors become relatively undisturbed and potentially host diverse semi-natural habitats. The study objectives were 1) to produce a highly detailed and accurate dataset using remote sensing with rapid assessment techniques for ground truthing and 2) subsequently examine habitat diversity existing along a proposed Greenway. A 7000 ha study corridor was based on a disused railway proposed as a transfrontier Greenway connecting the Republic of Ireland and the United Kingdom. The study applied a rapid-assessment virtual validation techniquealongside remote sensing and accuracy assessment. Inter-relationship between seminatural habitat diversity and land-use intensification was examined. Remote sensing accuracies of 89% and 99% for a real and linear habitat classification were obtained. Degrees of land-use intensification were observed throughout the corridor, highlighting the importance of maintaining and enhancing remaining semi-natural habitat that exists along the proposed Greenway route. Through understanding the landscape matrix composition and semi-natural habitat diversity, European Greenwayscan achieve multi-functionality for ecosystem conservation, forming integral components of Green Infrastructure.

How landscape structure, land-use intensity and habitat diversity affect components of total arthropod diversity in agricultural landscapes

2007 ◽  
Vol 44 (2) ◽  
pp. 340-351 ◽  
Author(s):  
FREDERIK HENDRICKX ◽  
JEAN-PIERRE MAELFAIT ◽  
WALTER VAN WINGERDEN ◽  
OLIVER SCHWEIGER ◽  
MARJAN SPEELMANS ◽  
...  
Keyword(s):  
Land Use ◽  
Landscape Structure ◽  
Habitat Diversity ◽  
Agricultural Landscapes ◽  
Land Use Intensity ◽  
Arthropod Diversity

scholarly journals Land Use Guidelines to Maintain Habitat Diversity of Wood- Pastures in the Southern Carpathians Under Projected Climate Change

2019 ◽  
Vol 74 ◽  
pp. 1-24 ◽  
Author(s):  
Iona Stoicescu ◽  
Ileana Pătru-Stupariu ◽  
Constantina Alina Hossu ◽  
Alexander Peringer
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Climate Warming ◽  
Habitat Diversity ◽  
Climate Change Scenarios ◽  
Long Term Effects ◽  
Wood Pasture ◽  
Habitat Mosaics ◽  
Agricultural Use ◽  
Southern Carpathians

The biodiversity of wood-pastures depends on a balance between human interference and natural vegetation succession, which however is undergoing changes driven by socio-economic factors and climate change. Widely spread throughout Europe, wood-pastures were subject to either intensification or abandonment, leading to habitat segregation and loss. This is currently the fate of large Romanian remnant woodpastures and climate warming further complicates management adaptation.In a series of simulation experiments, we compared the long-term effects of different land use and climate change scenarios on the habitat diversity of a wood-pasture in the Southern Carpathians (Fundata village, Romania). We tested livestock densities according to management guidelines, complemented with shrub-cutting in order to maintain a structurally-diverse landscape with high habitat values in the light of climate change. We found that significant losses of open pastureland and inclusion into forest, as well as landscape structural simplification and loss of complex habitats can be expected from climate warming, with more severe consequences in a hotter climate perspective. We arguefor the re-establishment of the traditional multi-use of wood-pastures at optimum livestock densities in combination with low-intensity shrubcutting, because our study demonstrated that traditional practices offer a balanced compromise between agricultural use and maintaining habitat mosaics that are robust to climate change.

scholarly journals Assesment of the Impact of Habitat Conditions and Land Use on the Floristic Diversity of Selected Rush Communities

2021 ◽  
Vol 31 (1) ◽  
pp. 172-181
Author(s):  
Mieczysław Grzelak ◽  
Eliza Gaweł ◽  
Leszek Majchrzak
Keyword(s):  
Land Use ◽  
Diversity Index ◽  
Economic Value ◽  
Habitat Diversity ◽  
Floristic Diversity ◽  
Habitat Conditions ◽  
Habitat Mosaic ◽  
River Valleys ◽  
The Impact ◽  
Diverse Plant

Abstract This study concerned the assessment of the effect of various habitat conditions and land use on the habitat diversity of rush communities classified as Phragmitetea. The investigations were conducted in the years 2015-2019 in an area particularly interesting in terms of its nature value and abundant in localities of diverse plant communities, located in ecological areas of permanent grassland in the river valleys of the Noteć Leniwa and the Noteć Bystra, as well as the interlevee floodplain of the Warta in the area of Rakowo. The study area covered 228 ha. Soil moisture content resulting from the habitat mosaic and intensity of land use had a significant effect on the formation of rush communities, their richness and floristic diversity as well as nature and agricultural value. Most communities of nature value were characterised by a mediocre economic value and low fodder value (FVS ranging from 1.1 to 6.9), while some were barren lands. The calculated floristic diversity index (H’) varied and ranged from 1.9 to 3.5, while the harvested dry matter yields ranged from 2.7 to 16.6 t.ha−1. The aim of this study was to assess the effect of habitat conditions and land use on the formation and diversity of rush communities in the Noteć and the Warta river valleys.

scholarly journals Detection of Vegetation Losses in Shrimp Farming Area Using Remote Sensing Technique.

2019 ◽  
Vol 7 (2) ◽  
pp. 103-107
Author(s):  
Shaharlina Abdul Rasid ◽  
Noor Janatun Naim Jemali ◽  
Nur Kyairatul Syafinie Abdul Majid
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Accuracy Assessment ◽  
Bare Soil ◽  
Habitat Diversity ◽  
Shrimp Farming ◽  
Current Status ◽  
Bare Area ◽  
Remote Sensing Technique ◽  
Farming Area

The conversion of mangrove forest to aquaculture activity leads to the destruction of habitat diversity and ecosystem. Shrimp farming is a sector of aquaculture that has a high potential for poverty alleviation and rural development in Tumpat, Kelantan. However, the development of this activity induces changes that potentially have negative impacts on the environment, one of which is vegetation deterioration. Pulau Terendak, Tumpat has been through the phase of conversion area which established as a shrimp farming area at year 1989. Using remote sensing technique, this study was implemented to identify the current status and total ranges of shrimp farming area by comparing vegetation losses from year 1989 to 2017. Land use and land cover maps of study area was analyzed through a process called image classification. Supervised classification using Maximum Likelihood algorithm was utilized to assess vegetation losses of the 45 hectare of shrimp farm area. Four main land use classes were detected namely water, bare area, dense vegetation and small vegetation. Result showed that in 25 years, vegetation of the area had decline to 23.3% while bare soil or open area increased to 8.5%. Digital analyzed data was compared to field verification procedure, accuracy assessment in this study was recorded at 64.3%. There are many causes for vegetation or mangrove loss but in this case the conversion of mangroves to shrimp farms has caused considerable attention whereby vegetation losses was found at serious state. Output of this study could suggest the authorities to plan a good strategy to address this issue in cost effective with maximum benefits for the environment and society.

scholarly journals Psychodidae (Diptera) of Azerbaijan and Georgia – faunistics with biodiversity notes

ZooKeys ◽  
2021 ◽  
Vol 1049 ◽  
pp. 15-42
Author(s):  
Jan Ježek ◽  
Peter Manko ◽  
Jozef Oboňa
Keyword(s):  
Land Use ◽  
Species Richness ◽  
Rare Species ◽  
New Records ◽  
Sampling Site ◽  
Original Description ◽  
Habitat Diversity ◽  
Clear Pattern ◽  
First Time

Records of 46 Psychodidae (Sycoracinae 1, Trichomyiinae 1, Psychodinae 44) species/subspecies are presented in this paper based on specimens collected by sweep-netting in Azerbaijan and Georgia in 2019. Nine species are recorded for the first time since their original description; 12 species are new for Transcaucasia; 22 species are new for Azerbaijan; and 17 species are new for Georgia. Saraiella ressli montana Ježek, 1990 is proposed as a synonym of S. ressli Wagner, 1983, syn. nov. Knowledge of some aspects of the ecology and biogeography of selected (especially rare) species has been expanded and a clear pattern was found in species richness, rare species, and new records in relation to land use, habitat diversity, and preservation of the environment surrounding the sampling site.

Sign in / Sign up

Export Citation Format

Share Document