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evaluating cost-effective methods for rapid and repeatable national scale detection and mapping of invasive species spread - what is a document camera

evaluating cost-effective methods for rapid and repeatable national scale detection and mapping of invasive species spread  -  what is a document camera

Invasive species can spread rapidly, both locally and nationally, with significant environmental and economic impacts.
A central problem with mitigation efforts is to identify ways to quickly detect invasive species at cost
An effective and repeatable way.
This challenge is particularly severe for species that can spread widely (>1 million km2). Wild pigs (Sus scrofa)
It is one of the most prolific invasive mammals on Earth, causing extensive damage to crops, native ecosystems and livestock, and is the reservoir of disease.
They have spread from Eurasia and North Africa to large areas of Australia, Africa, South America and North America.
We show that after initial and continued release and escape from the domestic wild boar farm, the number of invading wild boars in Canada has grown exponentially over the past 27 years.
The cumulative range of wild boar in Canada is 777,783 square kilometers, and the wild pigs are mostly distributed in grassland provinces.
We evaluated 8 different methods of data collection and evaluation/validation for mapping large-area invasive species and assessed their strengths and limitations.
Our findings effectively depict the spread of a highly invasive large mammal and indicate that management should ideally rely on a complementary set of independent monitoring methods.
Mapping and evaluation of the resulting species occurrence provides baseline maps that can quickly assess future changes based on these maps.
The human world is the current geological age on Earth, which is characterized by the main impact of human beings on the environment, including the impact on local ecosystems and the spread of global invasive species.
In fact, invasive species have been identified as one of the biggest threats to global biodiversity.
Human activities can be facilitated directly through intentional and unintentional movements of plants and animals, indirectly through habitat fragmentation and change related to agriculture, urban expansion and other man-made lands, promoting the spread of invasive species
Use change, climate change and over
Harvest of native species.
Efforts to mitigate the spread of invasive species are limited due to the lack of timely and accurate events and spatial expansion maps, especially in very large areas (>1 million km).
The process required to complete a comprehensive national scale mapping of a species is limited by the project budget.
New ways to cost
Effective and repeatable, especially for species that are expected to expand rapidly in a large area and have the greatest impact. Wild pigs ()
Also known as wild boar, wild boar or wild boar, currently has the largest non-
Domesticated terrestrial mammals on Earth
Wild boars are native to parts of Eurasia and North Africa, mainly through human introductions and natural diffusion, expanding their range across all continents except Antarctica.
Their extensive geographic range, coupled with the generalist nature of the species, allows wild boars to easily adapt and survive in new environments spanning a wide range of climates, habitats, and resources.
The widespread success of wild boars is explained by their extremely high reproductive capacity, early sexual maturity, plastic diet, longevity and high adaptability.
Wild boar is an invasive species in North America and is a descendant of Eurasian wild boar ()
Pig ()
And the hybrid of two. Long-
There is already a fixed population in the southern United States. S.
For hundreds of years, Texas, Florida and California have a high population density.
There's a well in the continental United States-
In recent decades, the distribution and number of wild pigs has increased, from 17 states in the past 30 years to 38 states.
In the federal and provincial agricultural diversity initiatives in 1980s and 1990s, wild boars were first introduced to Canada to diversify livestock species and supplement producer income.
Escape from domestic wild boar farms and deliberate release led to the establishment of wild populations on the Canadian prairie.
Brooke and best Van provide a rough
The scale distribution of wild boar in SA province at the rural urban level.
However, until this current study, Canada did not have a comprehensive national map of the species range.
Wild boar is considered the most destructive invasive species in the United States. S.
Constitute a large number of ecological and social
Economic threats within the scope of their introduction.
The wild boar, known as the ecological train wreck, changes the ecosystem process, the vegetation succession stage, the nutrient cycle, and causes erosion, deposition and nutrient-rich water bodies in the riverbank region and water bodies.
The multihanded nature of wild boars and the plastic diet enable them to utilize and compete for a variety of resources, as well as resources that predate small mammals, amphibious animals, aquatic animals and ground nests.
Severe disruption of habitat, resources and ecosystem processes has a direct and indirect effect on local wildlife and has the ability to reduce biodiversity and lead to extinction and extinction.
In the United States, the Galapagos Islands and Australia, species extinction and population decline due to the presence of wild pigs.
In some areas within the scope of the introduction of wild boar, the population has expanded to a point where eradication is no longer feasible.
The negative effects associated with wild boar have always been good --
Both Europe, Australia and the United States have records;
However, these negative effects are not shown in Canada.
A key challenge in managing rapidly expanding invasive species such as wild boars within national and continental boundaries isto-
Date information about their spatial distribution.
Mapping the location of invasive species is at the heart of guiding effective management and is also key to determining whether control efforts effectively control and limit or even reduce their spatial expansion.
Identifying costs, however
Effective methods for accurate and repeated mapping of species across countries represent significant time and financial commitment.
Routine ecological monitoring for large mammals such as aerial measurements, trail cameras, and mark-
In a relatively small range, recapture is valid (1 million km).
There is still much work to be done in assessing the effectiveness of these methods and determining the benefits and limitations of different methods, as detailed information on invasive species is currently required, especially wild boar in Canada.
Therefore, the goal of this study is :(1)
Determine the past and current spatial distribution of Canadian wild pigs, and (2)
Evaluate the benefits and limitations of four different data collection methods and four different national assessment/validation methods
Scale and repeatable mapping of wild boar spatial distribution.

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