Modelling the potential impact of climate change on future spatial and temporal patterns of biological control agents:Peristenus digoneutis(Hymenoptera: Braconidae) as a case study

2016 ◽  
Vol 148 (5) ◽  
pp. 579-594 ◽  
Author(s):  
O. Olfert ◽  
T. Haye ◽  
R. Weiss ◽  
D. Kriticos ◽  
U. Kuhlmann
Keyword(s):  
Climate Change ◽  
Biological Control ◽  
Temporal Dynamics ◽  
Potential Range ◽  
Pest Species ◽  
Spatial And Temporal Patterns ◽  
Climate Suitability ◽  
Potential Impact ◽  
Spatio Temporal

AbstractMechanistic species niche models were used to map the seasonal spatio-temporal dynamics of biological control pressure. Future climate scenarios were applied to these models to identify potential future trends in the patterns of biological control pressure through space and time during an annual seasonal cycle.Peristenus digoneutisLoan (Hymenoptera: Braconidae) is a parasitoid ofLygusHahn (Hemiptera: Miridae) species, important pests of glasshouse and field crops throughout Europe and North America. Consistent with theoretical expectations, the modelled potential range ofP. digoneutisexpanded polewards and contracted from its southern temperature range limits. However, its distribution did not change consistently across continents or countries. Locations near the outer limits of the current modelled distribution were more sensitive to changes in future climates than locations near the central core. Weekly climate suitability and stress maps were developed to provide insight into seasonal adjustments that accompany changes in the potential range of pest species and their natural enemies. Climate change may increase the number ofLygusgenerations in western Canada allowingP. digoneutisto establish in areas, where biological control attempts had failed in the past.

scholarly journals Using social media to quantify spatial and temporal dynamics of nature-based recreational activities

2016 ◽  
Author(s):  
Francesca Mancini ◽  
George M. Coghill ◽  
David Lusseau
Keyword(s):  
Temporal Dynamics ◽  
Spatial And Temporal Patterns ◽  
National Scale ◽  
Great Opportunity ◽  
Spatial And Temporal Scales ◽  
Use Of Data ◽  
Spatial And Temporal Dynamics ◽  
Recent National Survey ◽  
Visitor Numbers

AbstractBig data offer a great opportunity for nature-based recreation (NbR) mapping and evaluation. However, it is important to determine when and how it is appropriate to use this resource. We used Scotland as a case study to validate the use of data from Flickr as an indicator of NbR on a national scale and at several regional spatial and temporal resolutions. We compared Flickr photographs to visitor statistics in the Cairngorms National Park (CNP) and determined whether temporal variability in photo counts could be explained by known annual estimates of CNP visitor numbers. We then used a unique recent national survey of nature recreation in Scotland to determine whether the spatial distribution of Flickr photos could be explained by known spatial variability in nature use. Following this validation work, we used Flickr data to identify hotspots of wildlife watching in Scotland and investigated how they changed between 2005 and 2015.We found that spatial and temporal patterns in Flickr count are explained by measures of visitation obtained through surveys and that this relationship is reliable down to a 10 Km scale resolution. Our findings have implications for planning and management of NbR as they suggest that photographs uploaded on Flickr reflect patterns of NbR at spatial and temporal scales that are relevant for ecosystem management.

scholarly journals Using Red List species in designating protection status to forest areas: a case study on the problem of spatio-temporal dynamics

2020 ◽  
Vol 29 (11-12) ◽  
pp. 3429-3443
Author(s):  
Lise Tingstad ◽  
John-Arvid Grytnes ◽  
Magne Sætersdal ◽  
Ivar Gjerde
Keyword(s):  
Temporal Dynamics ◽  
Rank Order ◽  
Common Species ◽  
Red List ◽  
Red List Species ◽  
Polypore Fungi ◽  
Temporal Turnover ◽  
Spatio Temporal ◽  
Selection Of

Abstract Red-listed species are often used as target species in selection of sites for conservation. However, limitations to their use have been pointed out, and here we address the problem of expected high spatio-temporal dynamics of red-listed species. We used species data (vascular plants, bryophytes, macrolichens and polypore fungi) from two inventories 17 years apart to estimate temporal turnover of red-listed and non-red-listed species in two forest areas (147 and 195 ha) and of plots (0.25 ha) within each area. Furthermore, we investigated how turnover of species affected the rank order of plots regarding richness of red-listed species, using two different national Red List issues (1998 and 2015). In both study areas, temporal turnover was substantial, despite minor changes in the overall number of species. At plot level, temporal turnover in red-listed species was higher than in non-red-listed species, but similar to non-red-listed species of the same frequency of occurrence. Adding the effect of changing identities of species red-listed according to the two Red List issues, further increased the estimated spatio-temporal dynamics. Recorded spatio-temporal turnover also resulted in substantial changes in the rank order of plots regarding richness of red-listed species. Using rare red-listed species for site selection may therefore be accompanied by a higher loss of conservation effectiveness over time than for more common species, and particularly at finer scales.

scholarly journals Fishing for euros: how mapping applications can assist in maintaining revenues under the Landing Obligation

2020 ◽  
Author(s):  
Julia Calderwood ◽  
Kristian Schreiber Plet-Hansen ◽  
Clara Ulrich ◽  
David G Reid
Keyword(s):  
Temporal Dynamics ◽  
Species Distributions ◽  
Fishing Effort ◽  
Fishing Industry ◽  
Fishing Activity ◽  
Spatio Temporal ◽  
Catch Rates ◽  
Demersal Species ◽  
High Catch

Abstract With the introduction of the Landing Obligation (LO) in EU fisheries, there is an increasing need for fishers to avoid unwanted catches while maximizing revenues. Improving understanding of the spatio-temporal dynamics of unwanted catches could assist the fishing industry optimize catches by altering where they fish. How following such advice relates to revenues and fishery dynamics requires more consideration. We take an existing hotspot mapping methodology and examine how it could be used to identify fishing opportunities under the LO in Irish (Celtic Sea) and Danish (North Sea and Skagerrak) demersal fisheries. We consider if fishing effort can be relocated to avoid unwanted catches while maintaining revenues. The value per unit effort of fishing activity in both areas was often linked to high catch rates of key demersal species (cod, haddock, hake, and whiting). Our analyses indicated, however, that there are options to fish in areas that could provide higher revenues while avoiding below minimum conservation reference size catches and choke species. This was evident across both case study areas demonstrating that hotspot mapping tools could have wide applicability. There does, however, remain a need to explore how the displacement of vessels may further alter species distributions and fleet economics.

Understanding the potential impact of climate change on the behavior and demography of social species: The pied babbler (Turdoides bicolor) as a case study

2021 ◽  
Author(s):  
Amanda R. Ridley ◽  
Elizabeth M. Wiley ◽  
Amanda R. Bourne ◽  
Susan J. Cunningham ◽  
Martha J. Nelson-Flower
Keyword(s):  
Climate Change ◽  
Impact Of Climate Change ◽  
Social Species ◽  
Potential Impact

Evaluating spatio-temporal dynamics of multiple fisheries-targeted populations simultaneously: A case study of the Bohai Sea ecosystem in China

2020 ◽  
Vol 422 ◽  
pp. 108987
Author(s):  
Lisha Guan ◽  
Xiujuan Shan ◽  
Xianshi Jin ◽  
Harry Gorfine ◽  
Tao Yang ◽  
...  
Keyword(s):  
Bohai Sea ◽  
Temporal Dynamics ◽  
The Bohai Sea ◽  
Spatio Temporal
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