Mobility, habitat selection and population connectivity of the butterfly Lycaena helle in central Sweden

Abstract To be able to predict habitat quality and potential distribution of threatened species is key to developing successful conservation strategies for threatened species with fragmented distributions. The aim of this study was to assess factors that limit the local distribution and density of Lycaena helle, an endangered butterfly, in central Sweden, and to estimate its mobility in order to classify local populations according to their importance for the connectivity on a regional level. An additional aim was to test if L. helle habitat quality could be assessed using remotely-sensed data such as laser scanning (LiDAR). We derived potential predictors of L. helle occurrence from laser scanning data and used a resource selection function to assess their predictive power. We used a mark-recapture approach to study L. helle movement and estimate dispersal distances. The probability of occurrence of L. helle increased with higher solar irradiation and was negatively affected by sloping terrain, but the LiDAR data generally had low predictive power. Population density increased with host plant density, but this effect was weak. The mark-recapture study confirmed that L. helle is very sedentary, with a mean movement distance of only 114 m and a maximum of 600 m. The studied population extends over a large network of interconnected linear habitats, which probably facilitates dispersal and thereby population persistence. Our study highlight the importance of a warm micro-climate and of man-made habitats like road verges and power-line corridors for the conservation of L. helle.

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The InVEST Habitat Quality Model Associated with Land Use/Cover Changes: A Qualitative Case Study of the Winike Watershed in the Omo-Gibe Basin, Southwest Ethiopia

Remote Sensing ◽

10.3390/rs12071103 ◽

2020 ◽

Vol 12 (7) ◽

pp. 1103 ◽

Cited By ~ 6

Author(s):

Abreham Berta Aneseyee ◽

Tomasz Noszczyk ◽

Teshome Soromessa ◽

Eyasu Elias

Keyword(s):

Land Use ◽

Habitat Quality ◽

Global Economy ◽

Habitat Degradation ◽

Remote Sensing Data ◽

Impact Factors ◽

Conservation Strategies ◽

Anthropogenic Pressure ◽

Quality Model ◽

Land Use Types

The contribution of biodiversity to the global economy, human survival, and welfare has been increasing significantly, but the anthropogenic pressure as a threat to the pristine habitat has followed. This study aims to identify habitat suitability, analyze the change in habitat quality from 1988 to 2018, and to investigate the correlation between impact factors and habitat quality. The InVEST habitat quality model was used to analyze the spatiotemporal change in habitat quality in individual land-use types in the Winike watershed. Remote sensing data were used to analyze the land use/land cover changes. Nine threat sources, their maximum distance of impact, mode of decay, and sensitivity to threats were also estimated for each land-use cover type. The analysis illustrates that habitat degradation in the watershed was continuously increasing over the last three decades (1988 to 2018). Each threat impact factor and habitat sensitivity have increased for the last 30 years. The most contributing factor of habitat degradation was the 25.41% agricultural expansion in 2018. Population density, land-use intensity, elevation, and slope were significantly correlated with the distribution of habitat quality. Habitat quality degradation in the watershed during the past three decades suggested that the conservation strategies applied in the watershed ecosystem were not effective. Therefore, this study helps decision makers, particularly regarding the lack of data on biodiversity. It further looks into the conflict between economic development and conservation of biodiversity.

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Conservation of threatened plant species in botanic garden reserves in Brazil

Oryx ◽

10.1017/s0030605316000776 ◽

2016 ◽

Vol 52 (1) ◽

pp. 108-115 ◽

Cited By ~ 2

Author(s):

Maria Lúcia M. N. da Costa ◽

Peter Wyse Jackson ◽

Ricardo Avancini Fernandes ◽

Ariane Luna Peixoto

Keyword(s):

Plant Species ◽

Threatened Species ◽

In Situ Conservation ◽

Integrated Approach ◽

Ex Situ ◽

Conservation Strategies ◽

Botanic Gardens ◽

Threatened Plant Species ◽

Integrated Conservation ◽

Scientific Value

AbstractOver the last few decades botanic gardens worldwide have been encouraged to adopt complementary measures for the conservation of plant species from their own regions, combining in situ conservation efforts with ex situ methods, both in cultivation and in storage. This integrated approach is particularly important for botanic gardens in the tropics, which face the challenge of conserving a highly diverse and often threatened flora. We gathered information on the occurrence of threatened species in the natural vegetation reserves of 21 Brazilian botanic gardens. The data were collected from herbarium records in the database of the National Centre for Flora Conservation, and from the available plant inventories of these reserves. The results indicate that 148 species from the List of Threatened Species of Brazilian Flora are recorded as having been collected in the reserves. Of these, 51 species were maintained in the living collections of 18 botanic gardens and 83 species were recorded in federally protected areas. The occurrence of threatened species in the reserves of botanic gardens highlights the scientific value of these areas, as well as their biological, social and cultural importance for conservation. The results may be used to inform the planning of integrated conservation strategies for threatened species.

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Quantifying woodland structure and habitat quality for birds using airborne laser scanning

Functional Ecology ◽

10.1046/j.1365-2435.2002.00697.x ◽

2002 ◽

Vol 16 (6) ◽

pp. 851-857 ◽

Cited By ~ 74

Author(s):

S. A. Hinsley ◽

R. A. Hill ◽

D. L. A. Gaveau ◽

P. E. Bellamy

Keyword(s):

Habitat Quality ◽

Laser Scanning ◽

Airborne Laser Scanning ◽

Airborne Laser

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Realising the potential of Natura 2000 to achieve EU conservation goals as 2020 approaches

Scientific Reports ◽

10.1038/s41598-019-52625-4 ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 5

Author(s):

Virgilio Hermoso ◽

Alejandra Morán-Ordóñez ◽

Stefano Canessa ◽

Lluis Brotons

Keyword(s):

Threatened Species ◽

Biological Diversity ◽

Biodiversity Loss ◽

Natura 2000 ◽

Conservation Strategies ◽

Target Species ◽

Conservation Targets ◽

Alternative Scenarios ◽

The Eu

Abstract In the last decades the EU has made substantial efforts implementing conservation strategies to halt biodiversity loss. However, little improvement has been reported. Given the proximity of the 2020 landmark set by the EU Biodiversity Strategy and the Convention for Biological Diversity, alternatives to reduce this conservation gap and prospect future strategies must be assessed urgently. Here, we explore how the current Natura 2000 could be used to enhance management of terrestrial and freshwater threatened vertebrates. We identified Natura 2000 sites to increase the coverage of threatened species as target species under two alternative scenarios: a policy-driven approach including only threatened vertebrates listed in the Directives; and a conservation-driven approach, including all the remaining threatened vertebrates. We show that representation of threatened vertebrates in Natura 2000 could be improved by updating lists of target species in less than 1% and 3% of sites in the policy-driven and conservation-driven scenarios, respectively. We highlight the strength of Natura 2000, with sites that complement each other and could contribute to achieving more ambitious conservation targets under future strategies. Prioritisation exercises like this could help realise the potential of this network and enhance the management of threatened species and improve current gaps.

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Secondary glaucoma in uveitis: comparison of the optic nerve head morphology among a nonmydriatic fundus camera, HRT, and SD-OCT

European Journal of Ophthalmology ◽

10.5301/ejo.5001072 ◽

2017 ◽

Vol 28 (3) ◽

pp. 299-305

Author(s):

Milena Pahlitzsch ◽

Matthias K.J. Klamann ◽

Saskia Jacob ◽

Carl Erb ◽

Sibylle Winterhalter ◽

...

Keyword(s):

Optical Coherence Tomography ◽

Laser Scanning ◽

Predictive Power ◽

Confocal Laser ◽

Study Cohort ◽

Optical Coherence ◽

Uveitic Glaucoma ◽

Fundus Camera ◽

Objectively Measured ◽

Sd Oct

Purpose: To assess the correlation between the disc damage likelihood scale (DDLS) objectively measured by a nonmydriatic fundus camera, confocal laser scanning ophthalmoscopy (HRT3), and spectral-domain optical coherence tomography (SD-OCT) in uveitic glaucoma. Methods: A total of 59 patients with uveitic glaucoma (21 female, 38 male; mean age 56.8 ± 18.7 years) were included in this prospective cross-sectional study. All patients were measured by the Kowa Nonmyd WX 3D camera (2D/3D nonmydriatic retinal camera, Kowa Company), the HRT3 (Heidelberg Engineering), and SD-OCT (Carl Zeiss Meditec) by one examiner on the same day. All 3 devices graded the optic disc topography. Statistical data were calculated using SPSS (v 20.0, SPSS). Results: In patients showing borderline results in one of the modalities (n = 45), the DDLS showed a significant correlation with the retinal nerve fiber layer (p = 0.016), while Moorfields regression analysis (p = 0.550) and glaucoma probability score (p = 0.629) did not correlate significantly. The highest predictive power was demonstrated by the objectively measured DDLS (area under the receiver operating characteristic curve 0.445-0.588), compared to R. Burk (0.149-0.375) and F.S. Mikelberg (0.033-0.450) coefficients considering HRT and optical coherence tomography. Conclusions: In this study cohort, the objective DDLS showed the highest predictive power and thus is a reliable tool in diagnosing uveitic glaucoma. These 3 devices cannot be used interchangeably. As diagnosis and follow-ups are challenging in uveitis patients, the stereophotography is additionally a valuable tool.

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Small-sized fish: the largest and most threatened portion of the megadiverse neotropical freshwater fish fauna

Biota Neotropica ◽

10.1590/1676-0611-bn-2018-0683 ◽

2020 ◽

Vol 20 (1) ◽

Cited By ~ 3

Author(s):

Ricardo M. C. Castro ◽

Carla N. M. Polaz

Keyword(s):

Freshwater Fish ◽

Threatened Species ◽

Human Impacts ◽

Fish Fauna ◽

Neotropical Region ◽

Conservation Strategies ◽

Small Fish ◽

Large Fish ◽

Freshwater Fish Fauna ◽

General Synthesis

Abstract: We introduce the work providing a synthetic description of the diversity and phyletic structure of freshwater fish in the Neotropical Region, especially emphasizing that of Brazil. This is accompanied by a discussion about environments of fish from small to medium sized to large, taking into account how it shaped their respective biologies/ecologies, as well as what they imply for their use by humans. We present, as figures, the results of our exploratory analysis of Brazilian Red Book of Threatened Species of Fauna (2018), focusing on the small-sized ones, with up to 15 cm of standard length. We continue to present the main human impacts in small fish environments, along with those suffered by medium to large fish environments, and then follow by their respective deleterious effects. Finally, we present a general synthesis, reinforcing the enormous importance of small fish conservation and their respective preferred environments, followed by our main conclusions, and possible conservation strategies.

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Making extinction calculable

Accounting Auditing & Accountability Journal ◽

10.1108/aaaj-10-2015-2264 ◽

2018 ◽

Vol 31 (3) ◽

pp. 849-874 ◽

Cited By ~ 19

Author(s):

Thomas Cuckston

Keyword(s):

Biodiversity Conservation ◽

Threatened Species ◽

Extinction Risk ◽

Iucn Red List ◽

Red List ◽

Conservation Strategies ◽

Content Type ◽

The Social ◽

Ecological Relations

Purpose The purpose of this paper is to examine the role of the International Union for the Conservation of Nature (IUCN) Red List of Threatened Species in achieving biodiversity conservation and preventing the extinction of species. The Red List is a calculative device that classifies species in terms of their exposure to the risk of extinction. Design/methodology/approach The paper draws on theorising in the Social Studies of Finance literature to analyse the Red List in terms of how it frames a space of calculability for species extinction. The analysis then traces the ways that this framing has overflowed, creating conditions for calculative innovations, such that assemblages of humans and calculative devices (i.e. agencements) are constructed with collective capabilities to act to conserve biodiversity and prevent species extinctions. Findings This paper has traced three ways that the Red List frame has overflowed, leading to calculative innovations and the construction of new agencements. The overflow of relations between the quality of “extinction risk”, produced by the Red List, and other qualities, such as location, has created opportunities for conservationists to develop agencements capable of formulating conservation strategies. The overflow of relations between the identity of the “threatened species”, produced by the Red List, and other features of evaluated species, has created opportunities for conservationists to develop agencements capable of impelling participation in conservation efforts. The overflow of ecological relations between species, discarded by the Red List’s hierarchical metrology of extinction risk classifications, has created opportunities for conservationists to develop agencements capable of confronting society with the reality of an extinction crisis. Originality/value The paper contributes to the accounting for biodiversity literature by addressing its fundamental challenge: explaining how accounting can create conditions within society in which biodiversity conservation is made possible.

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Range-wide age and growth characteristics of shovelnose sturgeon from mark–recapture data: implications for conservation and management

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/cjfas-2014-0238 ◽

2015 ◽

Vol 72 (1) ◽

pp. 71-82 ◽

Cited By ~ 14

Author(s):

Martin J. Hamel ◽

Mark A. Pegg ◽

Reuben R. Goforth ◽

Quinton E. Phelps ◽

Kirk D. Steffensen ◽

...

Keyword(s):

River Basin ◽

Mississippi River ◽

Missouri River ◽

Large River ◽

Population Connectivity ◽

Growth Characteristics ◽

Age And Growth ◽

Mark Recapture ◽

Shovelnose Sturgeon ◽

Commercial Harvest

We used mark–recapture data from shovelnose sturgeon (Scaphirhynchus platorynchus) to describe range-wide growth characteristics and developed a model to estimate ages. Data were solicited throughout much of the current distribution of shovelnose sturgeon, specifically from the mainstem Missouri and Mississippi rivers and their tributaries. Shovelnose sturgeon exhibited variable growth among locations; however, adult fish exhibited almost no growth after they reached a particular size, presumably the size at sexual maturity. Shovelnose sturgeon from the Mississippi River basin attained greater maximum sizes and ages compared with the Missouri River basin. However, two populations from the Mississippi River that received high exploitation from commercial harvest had truncated age distributions with smaller asymptotic lengths. Lower Missouri River populations were characteristic of exploited populations (i.e., smaller fish and reduced longevity), presumably a result of anthropogenic effects. Wide discrepancies in maximum age and size suggest shovelnose sturgeon are capable of displaying phenotypic plasticity in response to exploitation or environmental influences. Determining metapopulation dynamics is a priority because it is unknown how population connectivity may influence dynamic rate functions and persistence of large-river fishes. Identifying potential source–sink connections in terms of population dynamics may provide a template for direction of future restoration and recovery efforts.

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