scholarly journals Long-Term Forest Paired Catchment Studies: What Do They Tell Us That Landscape-Level Monitoring Does Not?

Forests ◽  
2016 ◽  
Vol 7 (12) ◽  
pp. 164 ◽  
Author(s):  
Daniel Neary
Keyword(s):  
Paired Catchment ◽  
Level Monitoring ◽  
Landscape Level

scholarly journals Additional record and conservation measures of Ceropegia odorata Nimmo ex J. Graham from Gujarat State, India

2017 ◽  
Vol 9 (8) ◽  
pp. 10618
Author(s):  
S. K. Patel ◽  
B. L. Punjani ◽  
P. R. Desai ◽  
V. B. Pandey ◽  
Y. S. Chaudhary ◽  
...  
Keyword(s):  
Plant Species ◽  
Critically Endangered ◽  
Endangered Plant ◽  
Gujarat State ◽  
Participatory Approaches ◽  
Sabarkantha District ◽  
Associated Species ◽  
Level Monitoring ◽  
Landscape Level

Ceropegia odorata Nimmo ex J. Graham (Apocynaceae: Asclepiadoideae) a Critically Endangered plant species from India was recorded in Gujarat after about 45 years in Vijaynagar forest of Sabarkantha District (northern Gujarat).  It was first collected from Pavagadh in central Gujarat.  Long-term conservation and participatory approaches, details on macro- and micro-habitats, associated species, landscape level monitoring programs are suggested for the new recorded locality and hill ranges. 

scholarly journals Evaluating Simple Methodology for Piezoelectric Level Sensors Protection

Proceedings ◽  
2019 ◽  
Vol 48 (1) ◽  
pp. 30
Author(s):  
Luis Hamilton Pospissil Garbossa ◽  
Argeu Vanz ◽  
Matias Guilherme Boll ◽  
Hamilton Justino Vieira
Keyword(s):  
Water Level ◽  
Flood Control ◽  
Low Cost ◽  
Solid Particles ◽  
Storm Events ◽  
Sewer Systems ◽  
Continuous Monitor ◽  
Level Monitoring ◽  
Water Level Monitoring

The increasing frequency of extreme storm events has implications for the operation of sewer systems, storm water, flood control monitoring and tide level variations. Accurate and continuous monitor water level monitoring is demanded in different environments. Piezoelectric sensors are widely used for water level monitoring and work submerged in waters subject to the presence of solid particles, biological fouling and saltwater oxidation. This work aimed to develop a simple, low-cost methodology to protect sensors over long-term deployment. The results show that simple actions, costing less than 2 EUR, can protect and extend the lifecycle of equipment worth over 2000 EUR, ensuring continuous monitoring and maintaining quality measurements.

scholarly journals Can we predict the future: juvenile finfish and their seagrass nurseries in the Chesapeake Bay

2013 ◽  
Vol 71 (3) ◽  
pp. 681-688 ◽  
Author(s):  
Cynthia M. Jones
Keyword(s):  
Climate Change ◽  
Chesapeake Bay ◽  
Juvenile Fish ◽  
Single Species ◽  
Potential Effect ◽  
Seagrass Habitat ◽  
Important Conclusion ◽  
The Relationship ◽  
Landscape Level

Abstract The importance of estuarine seagrass beds as nurseries for juvenile fish has become a universal paradigm, especially for estuaries that are as important as the Chesapeake Bay. Yet, scientific tests of this hypothesis were equivocal depending on species, location, and metrics. Moreover, seagrasses themselves are under threat and one-third of seagrasses have disappeared worldwide with 65% of their losses occurring in estuaries. Although there have been extensive studies of seagrasses in the Chesapeake Bay, surprisingly few studies have quantified the relationship between seagrass as nurseries for finfish in the Bay. Of the few studies that have directly evaluated the use of seagrass nurseries, most have concentrated on single species or were of short duration. Few landscape-level or long-term studies have examined this relationship in the Bay or explored the potential effect of climate change. This review paper summarizes the seagrass habitat value as nurseries and presents recent juvenile fish studies that address the dearth of research at the long term and landscape level with an emphasis on the Chesapeake Bay. An important conclusion upon the review of these studies is that predicting the effects of climate change on fishery production remains uncertain.

scholarly journals Ice genesis and its long-term dynamics in Scărişoara Ice Cave, Romania

2010 ◽  
Vol 4 (4) ◽  
pp. 1909-1929
Author(s):  
A. Perşoiu ◽  
A. Pazdur
Keyword(s):  
Radiocarbon Dating ◽  
Ice Age ◽  
Clear Understanding ◽  
Lake Ice ◽  
Ice Flow ◽  
Paleoclimatic Significance ◽  
Basal Melting ◽  
Perennial Ice ◽  
Level Monitoring

Abstract. The paleoclimatic significance of the perennial ice deposit in Scărişoara Ice Cave has been remarked since the early 20th century, but a clear understanding of the processes involved in the genesis, age and long-term dynamics of ice hampered all attempts to extract valuable data on past climate and vegetation changes. In this paper, we present a model of ice genesis and dynamics, based on stable isotopes, ice level monitoring (modern and archived) and radiocarbon dating of organic matter found in the ice. Ice in Scărişoara Ice Cave mostly consists of layers of lake ice, produced as liquid water freezes from top to bottom in mid-autumn, a mechanism that was also acting in the past, during the Medieval Warm Period and the Little Ice Age. The ice block is not stable in shape and volume, being continuously modified by ablation on top, basal melting and lateral flow. Radiocarbon dating shows that the ice block is older than 1200 years, the rate of ice flow and basal melting suggesting that the ice could be much older.

Using the Formozov–Malyshev–Pereleshin formula to convert mammal spoor counts into density estimates for long‐term community‐level monitoring

2019 ◽  
Vol 57 (2) ◽  
pp. 177-189
Author(s):  
Steve Ahlswede ◽  
Ezequiel Chimbioputo Fabiano ◽  
Derek Keeping ◽  
Klaus Birkhofer
Keyword(s):  
Community Level ◽  
Density Estimates ◽  
Level Monitoring

scholarly journals Leveraging a Landscape-Level Monitoring and Assessment Program for Developing Resilient Shorelines throughout the Laurentian Great Lakes

Wetlands ◽  
2019 ◽  
Vol 39 (6) ◽  
pp. 1357-1366 ◽  
Author(s):  
Donald G. Uzarski ◽  
Douglas A. Wilcox ◽  
Valerie J. Brady ◽  
Matthew J. Cooper ◽  
Dennis A. Albert ◽  
...  
Keyword(s):  
Great Lakes ◽  
Laurentian Great Lakes ◽  
Assessment Program ◽  
Level Monitoring ◽  
Landscape Level

scholarly journals Regional neutrality evolves through local adaptive niche evolution

2019 ◽  
Vol 116 (7) ◽  
pp. 2612-2617 ◽  
Author(s):  
Mathew A. Leibold ◽  
Mark C. Urban ◽  
Luc De Meester ◽  
Christopher A. Klausmeier ◽  
Joost Vanoverbeke
Keyword(s):  
Adaptive Evolution ◽  
Biological Diversity ◽  
Regional Scale ◽  
Distribution Patterns ◽  
Niche Differentiation ◽  
Priority Effects ◽  
Local Conditions ◽  
Stable Coexistence ◽  
Landscape Level

Biodiversity in natural systems can be maintained either because niche differentiation among competitors facilitates stable coexistence or because equal fitness among neutral species allows for their long-term cooccurrence despite a slow drift toward extinction. Whereas the relative importance of these two ecological mechanisms has been well-studied in the absence of evolution, the role of local adaptive evolution in maintaining biological diversity through these processes is less clear. Here we study the contribution of local adaptive evolution to coexistence in a landscape of interconnected patches subject to disturbance. Under these conditions, early colonists to empty patches may adapt to local conditions sufficiently fast to prevent successful colonization by other preadapted species. Over the long term, the iteration of these local-scale priority effects results in niche convergence of species at the regional scale even though species tend to monopolize local patches. Thus, the dynamics evolve from stable coexistence through niche differentiation to neutral cooccurrence at the landscape level while still maintaining strong local niche segregation. Our results show that neutrality can emerge at the regional scale from local, niche-based adaptive evolution, potentially resolving why ecologists often observe neutral distribution patterns at the landscape level despite strong niche divergence among local communities.

Cost-effective strategies to conserve boreal forest biodiversity and long-term landscape-level maintenance of habitats

2010 ◽  
Vol 130 (5) ◽  
pp. 717-727 ◽  
Author(s):  
Mikko Mönkkönen ◽  
Pasi Reunanen ◽  
Janne S. Kotiaho ◽  
Artti Juutinen ◽  
Olli-Pekka Tikkanen ◽  
...  
Keyword(s):  
Boreal Forest ◽  
Cost Effective ◽  
Forest Biodiversity ◽  
Effective Strategies ◽  
Landscape Level
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