Incomplete species lists derived from global and regional specimen-record databases affect macroecological analyses: A case study on the vascular plants of China

2018 ◽  
Vol 45 (12) ◽  
pp. 2718-2729 ◽  
Author(s):  
Hong Qian ◽  
Tao Deng ◽  
Jan Beck ◽  
Hang Sun ◽  
Cui Xiao ◽  
...  
Keyword(s):  
Vascular Plants ◽  
Species Lists ◽  
Specimen Record

scholarly journals Species richness and conservation gap analysis of karst areas: A case study of vascular plants from Guizhou, China

2018 ◽  
Vol 16 ◽  
pp. e00460 ◽  
Author(s):  
Bo Liu ◽  
Mei Zhang ◽  
W. Rainer Bussmann ◽  
Hui-ming Liu ◽  
Ying-ying Liu ◽  
...  
Keyword(s):  
Species Richness ◽  
Vascular Plants ◽  
Gap Analysis ◽  
Karst Areas

Why so different? A case study about Floras from a Mediterranean island

Phytotaxa ◽  
2020 ◽  
Vol 440 (2) ◽  
pp. 129-158 ◽  
Author(s):  
SIMONETTA BAGELLA ◽  
GIOVANNA BECCA ◽  
GIANNI BEDINI ◽  
MARIA CARMELA CARIA ◽  
STEFANIA PISANU ◽  
...  
Keyword(s):  
Side Effects ◽  
Vascular Plants ◽  
Geographic Area ◽  
Floristic Richness ◽  
Positive Effects ◽  
Positive Side ◽  
Critical Issues ◽  
Mediterranean Island ◽  
Positive Side Effects

In light of the hypothesis that different authors, who have access to the same information and tools, can give different interpretations of the same reality, namely the vascular plants, existing within a determinate geographic boundary, this research aims to verify how and to what extent these differences can affect a checklist, and what critical issues and positive effects may arise in them.         To this purpose, we compared two different checklists which were developed approximately in the same period for the same geographic area, the island of Sardinia (Italy).        The results show that checklists of the same area can differ in quantitative terms, establishing a different value of floristic richness. Moreover, they can differ in qualitative terms due to the different approach adopted by the authors concerning nomenclature, taxonomy, and interpretation, delimitation, and circumscription of taxa.                These discrepancies may have positive side effects as they offer insights for critical reviews and further investigation.

scholarly journals Variability of contemporary vegetation around Petuniabukta, central Spitsbergen

2012 ◽  
Vol 33 (4) ◽  
pp. 383-394 ◽  
Author(s):  
Karel Prach ◽  
Jitka Klimešová ◽  
Jiří Košnar ◽  
Olexii Redčenko ◽  
Martin Hais
Keyword(s):  
High Latitude ◽  
Vascular Plants ◽  
Native Species ◽  
Spatial Scales ◽  
A Priori ◽  
Vegetation Pattern ◽  
Svalbard Archipelago ◽  
Species Lists ◽  
Phytosociological Relevés ◽  
First Time

Abstract Vegetation was described in various spatial scales in the area of 37.8 km2 including distinguishing vegetation units, vegetation mapping, recording phytosociological relevés (53), and completing species lists of vascular plants (86), mosses (124) and lichens (40). Phytosociological relevés were elaborated using ordination methods DCA and CCA. The relevés formed clusters corresponding well to a priori assigned vegetation units. Slope and stoniness significantly influenced the vegetation pattern. Despite the high latitude (nearly 80° N), the vegetation is rather rich in species. Non-native species do not expand. The moss Bryum dichotomum is reported for the first time from Svalbard archipelago.

scholarly journals Quantifying errors and omissions in alien species lists: The introduction status of Melaleuca species in South Africa as a case study

NeoBiota ◽  
2017 ◽  
Vol 32 ◽  
pp. 89-105 ◽  
Author(s):  
Llewellyn Jacobs ◽  
John Wilson ◽  
Brendan Lepschi ◽  
David Richardson
Keyword(s):  
South Africa ◽  
Alien Species ◽  
Species Lists

scholarly journals Anthropogenic Stressors in Upland Rivers: Aquatic Macrophyte Responses. A Case Study from Bulgaria

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2708
Author(s):  
Gana Gecheva ◽  
Karin Pall ◽  
Milcho Todorov ◽  
Ivan Traykov ◽  
Nikolina Gribacheva ◽  
...  
Keyword(s):  
Plant Communities ◽  
Vascular Plants ◽  
Aquatic Macrophytes ◽  
Aquatic Macrophyte ◽  
Base Flow ◽  
Urban Structures ◽  
Anthropogenic Stressors ◽  
Biological Responses ◽  
Riparian Habitats

Upland rivers across Europe still exhibit undisturbed conditions and represent a treasure that we cannot afford to lose. We hypothesize that the combination of pristine and modified conditions could demonstrate biological responses along the stressor gradients. Thus, the response of aquatic macrophyte communities to anthropogenic stressors along upland rivers in Bulgaria was studied. Six stressors were selected out of 36 parameters grouped into hydromorphological, chemical variables and combined drivers (catchment land use). The stressors strongly affected species richness on the basis of biological type (bryophytes vs. vascular plants) and ecomorphological type (hydrophytes vs. helophytes). Hydrological alteration expressed by the change of the river’s base flow and altered riparian habitats has led to a suppression of bryophytes and a dominance of riverbank plant communities. Seventy-five percent of mountain sites were lacking bryophytes, and the vegetation at semi-mountainous sites was dominated by vascular plants. It can be concluded that hydropeaking, organic and inorganic pollution, and discontinuous urban structures caused important modifications in the aquatic macrophyte assemblages. Macrophyte abundance and the biological and ecomorphological type of aquatic macrophytes reflect multi-stressor effects in upland rivers.

Justification for continued conservation efforts following the delisting of a threatened species: a case study of the woylie, Bettongia penicillata ogilbyi (Marsupialia:Potoroidae)

2010 ◽  
Vol 37 (3) ◽  
pp. 183 ◽  
Author(s):  
Christine Groom
Keyword(s):  
Threatened Species ◽  
Conservation Status ◽  
Population Decline ◽  
Population Monitoring ◽  
Rapid Decline ◽  
Successful Implementation ◽  
Bettongia Penicillata ◽  
Species Lists ◽  
Iucn Criteria

Context. There are few cases where a species has been removed from a list of threatened species as a result of conservation efforts. One such example is the woylie (also known as the brush-tailed bettong), Bettongia penicillata ogilbyi, which was removed from state (Western Australian), national (Australian) and international lists in 1996, following the successful implementation of the species’ recovery plan. Since downgrading of its conservation status, the woylie has been considered conservation dependent. Conservation efforts continued in the form of toxic baiting to control the species’ principal predator, monitoring to identify trends in distribution and abundance, and translocation to help restore ecosystem function and further secure the conservation status of the species. Recent observations of a decline in abundance of the species have prompted a review of its conservation status. Aims. To assess the conservation status of the woylie in 2006 against IUCN criteria and to investigate the value of continued conservation efforts following the delisting of the species. Methods. Monitoring data were collated and parameters required to assess the conservation status of the woylie against IUCN criteria were investigated. The various processes associated with conserving the species, such as translocation and monitoring, were also assessed. Key results. The species underwent a rapid decline between 2001 and 2006, reducing the population by ~75% to an estimated 10 000 individuals. The decline has not been consistent across occurrences and of particular concern are the declines observed at Perup/Lake Muir, Dryandra and Batalling, which were previously considered amongst the largest and most stable occurrences. In 2006, the species qualified for listing as Endangered using IUCN criteria. The resources allocated to translocation and monitoring the delisted woylie have ultimately resulted in managers being in a much better position to understand and act when an unforeseeable population decline occurred. Conclusion. Conservation efforts and population monitoring of delisted species must continue at a level where changes in distribution or abundance, which are significant enough to support relisting, can be detected. Implications. Threatened species lists should not be the primary consideration in allocation of resources to conservation efforts.

Evaluating Completeness of Species Lists for Conservation and Macroecology: a Case Study of Mexican Land Birds

2008 ◽  
Vol 15 (5) ◽  
pp. 1384-1395 ◽  
Author(s):  
Héctor Gómez De Silva ◽  
Rodrigo A. Medellín
Keyword(s):  
Species Lists

scholarly journals Trends and biases in the listing and recovery planning for threatened species: an Australian case study

Oryx ◽  
2012 ◽  
Vol 47 (1) ◽  
pp. 134-143 ◽  
Author(s):  
Jessica C. Walsh ◽  
James E. M. Watson ◽  
Madeleine C. Bottrill ◽  
Liana N. Joseph ◽  
Hugh P. Possingham
Keyword(s):  
Environmental Protection ◽  
Threatened Species ◽  
Biological Conservation ◽  
Recovery Planning ◽  
Threat Status ◽  
Species Lists ◽  
Planning Processes ◽  
Australian Case ◽  
Taxonomic Groups

AbstractMany countries rely on formal legislation to protect and plan for the recovery of threatened species. Even though the listing procedures in threatened species legislation are designed to be consistent for all species there is usually a bias in implementing the laws towards charismatic fauna and flora, which leads to uneven allocation of conservation efforts. However, the extent of bias in national threatened species lists is often unknown. Australia is a good example: the list of threatened species under the Environmental Protection and Biological Conservation Act has not been reviewed since 2000, when it was first introduced. We assessed how well this Act represents threatened species across taxonomic groups and threat status, and whether biases exist in the types of species with recovery plans. We found that birds, amphibians and mammals have high levels of threatened species (12–24%) but < 6% of all reptiles and plants and < 0.01% of invertebrates and fish are considered threatened. Similar taxonomic biases are present in the types of species with recovery plans. Although there have been recent improvements in the representation of threatened species with recovery plans across taxonomic groups, there are still major gaps between the predicted and listed numbers of threatened species. Because of biases in the listing and recovery planning processes many threatened species may receive little attention regardless of their potential for recovery: a lost opportunity to achieve the greatest conservation impact possible. The Environmental Protection and Biological Conservation Act in Australia needs reform to rectify these biases.

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