ארכיון Survey - Hamaarag https://hamaarag.org.il/en/tag/survey/ Israel's National Ecosystem Assessment Program Thu, 11 Jan 2024 10:11:14 +0000 en-US hourly 1 Survey: the use of animals in agricultural space and agricultural damagehttps://hamaarag.org.il/en/report/1631-2/ Sat, 09 Dec 2023 09:50:28 +0000 https://hamaarag.org.il/?post_type=report&p=1631A survey focusing on the use of animals in avocado and citrus groves in the Hefer Valley [Emek Hefer] was conducted in collaboration with Israel’s Nature and Parks Authority and Ministry of Agriculture and Rural Development, and was published in 2021. The survey was conducted to characterize the wild mammals active in the agricultural region in the center of Israel, and identify the damage caused to farmers [in Hebrew].

הפוסט Survey: the use of animals in agricultural space and agricultural damage הופיע לראשונה ב-Hamaarag.

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Agricultural damage caused by animals, and especially that caused by large mammals, includes both damage to agricultural infrastructure, such as damage to irrigation systems and fences, and damage to agricultural crops and produce. However, in many parts of Israel, and especially in the center of the country, natural open spaces have almost completely disappeared, and agricultural areas serve as corridors between patches of natural area, or as the last habitats in which wild animals can still exist. To try and develop interfaces which on the one hand minimize the damage to agriculture caused by animals, and on the other hand encourage the use of agricultural land as an important ecological corridor, one must first understand the use-patterns of animals in the agricultural land. To this end, Hamaarag, under the guidance of Israel’s Nature and Parks Authority and Ministry of Agriculture and Rural Development, conducted a survey in agricultural groves in the center of Israel.

The survey’s goals were to:

  1. Evaluate how animals, and mainly large mammals, use agricultural space, and characterize their patterns of use. 
  2. Examine the connection between the use-patterns of selected species in the agricultural area, and the damage caused to agriculture.
  3. Assess the importance of agricultural space as a habitat and ecological corridor supporting a variety of species.

הפוסט Survey: the use of animals in agricultural space and agricultural damage הופיע לראשונה ב-Hamaarag.

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Bottleneck surveyhttps://hamaarag.org.il/en/report/1630-2/ Sat, 09 Dec 2023 09:46:06 +0000 https://hamaarag.org.il/?post_type=report&p=1630A survey examining how animals use “bottlenecks” was conducted during 2018-2019 by Hamaarag for Israel’s Nature and Parks Authority in five bottlenecks in ecological corridors in the Sharon region. The goal of the survey was to characterize the mammals’ and reptiles’ societies in the bottlenecks, analyze the composition of said societies and their spatial and temporal activities, and estimate the size of the societies and their use of road crossings. In addition, the survey aimed to create a basis for the long-term monitoring of ecological corridors in central Israel [in Hebrew].

הפוסט Bottleneck survey הופיע לראשונה ב-Hamaarag.

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In the current survey, bottlenecks were examined as part of a system of ecological corridors in Israel’s central region. As far as we know, this survey constitutes the highest concentrated effort in the field in the region, in terms of several criteria: the scope of the area covered, sampling efforts in relation to the area, and the variety of sampling methods used.

During the survey, a relatively high number of vertebrate species (mammals, reptiles and amphibians) was observed – 36 different species in total – among them two domesticated species (dogs, cats) and a number of species considered as associated with human habitation (golden jackals, rats, house mice). Even though a large number of the species was observed only once or a few times, it can be assumed that finding one or several members of a certain species indicates the existence of a population of that species, especially since some of these species are difficult to observe even in ideal habitats. In that sense, it seems that while the area is highly violated in regards to its the natural ecosystem infrastructure, it still supports a large variety of species, and maintaining it as an open natural area is crucial.

תן זהוב באזור היישוב עופר

The main conclusions and recommendations arising from the results of the current survey indicate the following:

  • The relatively high diversity of species found during the survey indicates that even highly-interrupted areas constitute a functioning ecosystem that should be preserved.
  • The importance of continuing to monitor the open areas in the region, with a focus on their usability.
  • Expanding the surveys, and monitoring additional groups, mainly arthropods (both terrestrial and flying), bats and birds.
  • Expanding the survey to focus on understanding the spatial and temporal use-patterns of road crossings, to help with arriving at future interface conclusions.
  • Conducting research that will focus on the functioning of the corridors for species who have a conservational or functional importance, or for indicative species.
  • Applying a variety of monitoring techniques which complement each other, as was done in this survey.
  • The importance of maintaining a natural relict, even if only the margins of disturbed or agricultural areas.
  • Examining the phenomenon of the proliferation of domestic dogs in the area, and its possible consequences.
  • Examining the dynamics of the boar population in the region, to understand their spatial distribution modes, and assess the risks of their spread into urban areas. 

הפוסט Bottleneck survey הופיע לראשונה ב-Hamaarag.

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