scholarly journals Where are the bats? An environmental complementarity analysis in a megadiverse country

2020 ◽  
Vol 26 (11) ◽  
pp. 1510-1522
Author(s):  
Ludmilla M. S. Aguiar ◽  
Maria João R. Pereira ◽  
Marlon Zortéa ◽  
Ricardo B. Machado
Keyword(s):  
Complementarity Analysis

scholarly journals Gap analyses of priority wild relatives of food crop in current ex situ and in situ conservation in Indonesia

2021 ◽  
Author(s):  
Wiguna Rahman ◽  
Joana Magos Brehm ◽  
Nigel Maxted ◽  
Jade Phillips ◽  
Aremi R. Contreras-Toledo ◽  
...  
Keyword(s):  
Protected Areas ◽  
Protected Area ◽  
In Situ Conservation ◽  
Wild Relatives ◽  
Ex Situ ◽  
Area Network ◽  
Complementarity Analysis ◽  
Ex Situ Collections ◽  
Conservation Actions

AbstractConservation programmes are always limited by available resources. Careful planning is therefore required to increase the efficiency of conservation and gap analysis can be used for this purpose. This method was used to assess the representativeness of current ex situ and in situ conservation actions of 234 priority crop wild relatives (CWR) in Indonesia. This analysis also included species distribution modelling, the creation of an ecogeographical land characterization map, and a complementarity analysis to identify priorities area for in situ conservation and for further collecting of ex situ conservation programmes. The results show that both current ex situ and in situ conservation actions are insufficient. Sixty-six percent of priority CWRs have no recorded ex situ collections. Eighty CWRs with ex situ collections are still under-represented in the national genebanks and 65 CWRs have no presence records within the existing protected area network although 60 are predicted to exist in several protected areas according to their potential distribution models. The complementarity analysis shows that a minimum of 61 complementary grid areas (complementary based on grid cells) are required to conserve all priority taxa and 40 complementary protected areas (complementary based on existing protected areas) are required to conserve those with known populations within the existing in situ protected area network. The top ten of complementary protected areas are proposed as the initial areas for the development of CWR genetic reserves network in Indonesia. It is recommended to enhanced coordination between ex situ and in situ conservation stakeholders for sustaining the long term conservation of CWR in Indonesia. Implementation of the research recommendations will provide for the first time an effective conservation planning of Indonesia’s CWR diversity and will significantly enhance the country’s food and nutritional security.

scholarly journals Areas of endemism of Cactaceae and the effectiveness of the protected area network in the Chihuahuan Desert

Oryx ◽  
2011 ◽  
Vol 45 (2) ◽  
pp. 191-200 ◽  
Author(s):  
Héctor M. Hernández ◽  
Carlos Gómez-Hinostrosa
Keyword(s):  
Protected Areas ◽  
Protected Area ◽  
Chihuahuan Desert ◽  
Distribution Data ◽  
Area Network ◽  
Protected Area Network ◽  
Complementarity Analysis ◽  
Areas Of Endemism ◽  
The Rich ◽  
Narrow Endemism

AbstractWe used distribution data of 121 cactus species endemic to the Chihuahuan Desert to test the effectiveness of the region’s protected area network. The analysis of species distribution using a 30′ latitude × 30′ longitude grid facilitated the identification and categorization of areas of endemism. We found a low degree of coincidence between protected areas and the areas of cactus endemism, and only 63.6% of the 121 species occur in protected areas. A complementarity analysis showed that 10 of the protected areas contain the 77 species that occur in protected areas. The four top priority areas protect 65 (84.4%) of these 77 species The 44 unprotected species are mainly micro-endemic and taxonomically distinctive taxa widely scattered in the region. The complementarity analysis applied to these species showed that all of them can be contained in a minimum of 24 grid squares, representing 32.9% of the total area occupied. Their strong spatial dispersion, along with their narrow endemism, is a major conservation challenge. We conclude that the current protected area network is insufficient to protect the rich assemblage of cacti endemic to the Chihuahuan Desert. Conservation efforts in this region should be enhanced by increasing the effectiveness of the already existing protected areas and by the creation of additional protected areas, specifically micro-reserves, to provide refuge for the unprotected species.

Complementarity Analysis and Evaluation of Renewable Energy Stations based on Mixed-Copula Model

2019 ◽  
Author(s):  
Jiahao Wan ◽  
Quanfu Zheng ◽  
Ming Xiao ◽  
Xuebin Wang ◽  
Hao Su ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Copula Model ◽  
Analysis And Evaluation ◽  
Complementarity Analysis

Complementarity analysis: Mapping the performance of surrogates for biodiversity

2006 ◽  
Vol 128 (2) ◽  
pp. 253-264 ◽  
Author(s):  
Paul Williams ◽  
Dan Faith ◽  
Lisa Manne ◽  
Wes Sechrest ◽  
Chris Preston
Keyword(s):  
Complementarity Analysis

scholarly journals Generalised Complementarity Analysis: identifying the most precious places for the conservation of Species, Functional and Phylogenetic Diversity

2017 ◽  
Author(s):  
David Anthony Nipperess
Keyword(s):  
Conservation Planning ◽  
Phylogenetic Diversity ◽  
Exact Analytical Solution ◽  
Area Under The Curve ◽  
Null Model ◽  
Mathematical Framework ◽  
Computationally Efficient ◽  
Complementarity Analysis ◽  
Functional And Phylogenetic Diversity ◽  
Algorithmic Approaches

AbstractThe most precious places for conservation are those that make the largest contribution to regional, national or global biodiversity. The two key concepts for determining the contribution of a specific site are Complementarity (the gain in diversity achieved when adding that site to a set of other sites) and Irreplaceability (here defined as the overall complementarity of that site when compared to a range of possible combinations of other sites). Generalised Complementarity Analysis (GCA) is a mathematical framework that provides an exact analytical solution for the expected complementarity (gain in diversity) of a focal site, when added to a set of other sites of a given size (m). Diversity is defined very generally to allow for complementarity to be calculated for species richness, Functional Diversity or Phylogenetic Diversity. The expected irreplaceability of a focal site is then defined in GCA as the area under the curve of expected complementarity values for all possible values of m. GCA is much more computationally efficient than existing algorithmic approaches and is scalable to very large numbers of sites. Because complementarity and irreplaceability are calculated for all possible combinations of sites, GCA serves as a null model for systematic conservation planning algorithms that seek to optimise site selection. However, because truly irreplaceable sites remain so under all possible site selections, GCA is a powerful conservation planning tool in its own right, providing an efficient means of identifying the world’s most precious places for conservation.

Are beetles good indicators of insect diversity in freshwater lakes?

2015 ◽  
Vol 44 (4) ◽  
Author(s):  
Joanna Pakulnicka ◽  
Edyta Buczyńska ◽  
Paweł Buczyński ◽  
Stanisław Czachorowski ◽  
Alicja Kurzątkowska ◽  
...  
Keyword(s):  
Aquatic Insects ◽  
Species Level ◽  
Elementary Level ◽  
Biodiversity Surrogates ◽  
Aquatic Beetles ◽  
The Family ◽  
North Eastern ◽  
Complementarity Analysis ◽  
Entire Lake

AbstractThe study verifies the usefulness of aquatic beetles as an indicator of biodiversity of a simple ecological system. Detailed analyses were carried out at the elementary level for the purpose of determining the significance of correlations between the biodiversity of Coleoptera and other groups of aquatic insects in single samples. The relation of selected taxa to selected habitats of the lake Wukśniki (north-eastern Poland) was also investigated. Moreover, the possibility of application of biodiversity surrogates, i.e. higher taxonomic units (genera and orders), in the determination of biodiversity was examined. A significant high correlation was determined between Coleoptera and the total remaining taxa (RR - Remaining Richness) in samples collected in the entire lake. The correlation has the highest value at the species level. The complementarity analysis reveals that the percentage contribution of Coleoptera in the overall biodiversity of the lake is similarly high at the species and genus level, and substantially lower at the family level. In accordance with the hypothesis, aquatic beetles can be used as indicators of the overall biodiversity of insects in the ecosystem of a mesotrophic lake. Biodiversity surrogates, i.e. higher taxonomic units (genera and families), can be applied instead of the species level.

The importance of Vu Quang Nature Reserve, Vietnam, for bird conservation, in the context of the Annamese Lowlands Endemic Bird Area

2001 ◽  
Vol 11 (4) ◽  
pp. 247-285 ◽  
Author(s):  
J. C. Eames ◽  
R. Eve ◽  
A. W. Tordoff
Keyword(s):  
Protected Areas ◽  
Nature Reserve ◽  
Conservation Status ◽  
Bird Species ◽  
Present Species ◽  
Bird Conservation ◽  
Conservation Priority ◽  
Mammal Species ◽  
Species Lists ◽  
Complementarity Analysis

Vu Quang Nature Reserve, Vietnam, was brought to the attention of the world scientific community following the discovery of two previously undescribed large mammal species in the early 1990s. In light of the identification of other sites of high biodiversity value in the Annamite mountains of Vietnam and Laos, the relative importance for biodiversity conservation of Vu Quang needs to be reassessed. In this paper we evaluate the importance of the site for bird conservation, in relation to 13 other protected areas in the Annamese Lowlands Endemic Bird Area (EBA) and present species lists for all 14 sites. Whilst Vu Quang supports one of the highest numbers of recorded bird species of all 14 protected areas, a complementarity analysis revealed that Vu Quang does not fall within the critical subset of sites necessary to conserve 95% of the avifaunal diversity of the EBA. The site should not, therefore, be considered a regional bird conservation priority. Furthermore, of the nine restricted-range species known from the Annamese Lowlands EBA, only three are known from Vu Quang, which is not, therefore, a priority site for the conservation of endemic bird species. We also evaluate the conservation status of the avifauna of Vu Quang, and propose potential conservation measures to enhance its importance for bird conservation.

scholarly journals A Completeness and Complementarity Analysis of the Data Sources in the NOAA In Situ Sea Surface Temperature Quality Monitor (iQuam) System

2021 ◽  
Vol 13 (18) ◽  
pp. 3741
Author(s):  
Haifeng Zhang ◽  
Alexander Ignatov
Keyword(s):  
Sea Surface ◽  
Data Sets ◽  
Data Set ◽  
In Situ Data ◽  
Satellite Sst ◽  
Complementarity Analysis ◽  
The Cost ◽  
Marine Environment Monitoring ◽  
Drifting Buoys

In situ sea surface temperatures (SST) are the key component of the calibration and validation (Cal/Val) of satellite SST retrievals and data assimilation (DA). The NOAA in situ SST Quality Monitor (iQuam) aims to collect, from various sources, all available in situ SST data, and integrate them into a maximally complete, uniform, and accurate dataset to support these applications. For each in situ data type, iQuam strives to ingest data from several independent sources, to ensure most complete coverage, at the cost of some redundancy in data feeds. The relative completeness of various inputs and their consistency and mutual complementarity are often unknown and are the focus of this study. For four platform types customarily employed in satellite Cal/Val and DA (drifting buoys, tropical moorings, ships, and Argo floats), five widely known data sets are analyzed: (1) International Comprehensive Ocean-Atmosphere Data Set (ICOADS), (2) Fleet Numerical Meteorology and Oceanography Center (FNMOC), (3) Atlantic Oceanographic and Meteorological Laboratory (AOML), (4) Copernicus Marine Environment Monitoring Service (CMEMS), and (5) Argo Global Data Assembly Centers (GDACs). Each data set reports SSTs from one or more platform types. It is found that drifting buoys are more fully represented in FNMOC and CMEMS. Ships are reported in FNMOC and ICOADS, which are best used in conjunction with each other, but not in CMEMS. Tropical moorings are well represented in ICOADS, FNMOC, and CMEMS. Some CMEMS mooring reports are sampled every 10 min (compared to the standard 1 h sampling in all other datasets). The CMEMS Argo profiling data set is, as expected, nearly identical with those from the two Argo GDACs.

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