dichotomus in forest plantations in the Delta of Paran river: towards - - PowerPoint PPT Presentation

▶
dichotomus in forest plantations in the delta of paran
SMART_READER_LITE
LIVE PREVIEW

dichotomus in forest plantations in the Delta of Paran river: towards - - PowerPoint PPT Presentation

Feb 08, 2024 44 likes •147 views

Characterization of the damage generated by Blastocerus dichotomus in forest plantations in the Delta of Paran river: towards the design of a push-pull system Advances 2018 Background Oryx, 2017 Fauna & Flora International

slide-1
SLIDE 1

Characterization of the damage generated by Blastocerus dichotomus in forest plantations in the Delta of Paraná river: towards the design of a push-pull system Advances 2018

slide-2
SLIDE 2

Oryx, 2017 Fauna & Flora International

  • Implementation of strategies to minimize damage: use of chemical repellents,
  • dor

and visual barriers, physical barriers, dogs, alternative sources

  • f food and hunting control.
  • Push-pull systems:
  • Integration of stimuli  repellency to a resource which need to be protected + attraction to an

alternative resource with low or no commercial value. Background

slide-3
SLIDE 3

Caseine Palatability altered Predator's

  • dours

Generation of fear

  • Review of the repellency methods to minimize deer damage for a future application in the

Delta of Paraná river.

  • Interviews to forest producers.

Activities completed during the first part of the year

slide-4
SLIDE 4

Preliminary results: interviews

  • Completed 11 interviews to producers (2018)

27,27 27,27 45,45

Area (ha) of propieties

Grande (> 200 ha) Medio (50-20 ha) Chicos (1-50 ha)

  • Damage surface:

 63,6% “a few trees”  18,2% “1/4 of the surface”  9 % “3/4 of the surface”

  • How do you considere the damage?:

 90,9% “Not so important”  9,09% “Very important”

  • Type of damage:

 Bark rubbed: 27,3%  Browsing: 9,09%  Browsing and barj rubbed: 63,6%

Large (>200 ha) Medium (50-20 ha) Small (1-50 ha)

slide-5
SLIDE 5

Activities completed during the second part of the year: repellency essays

12%

slide-6
SLIDE 6

Activities completed during the second part of the year: repellency essays

slide-7
SLIDE 7

Activities completed during the second part of the year: preferency essays Willow varieties:

  • Agronales
  • Géminis
  • Lezama
  • Humboldtiana
  • Yaguareté

Native species:

  • Ceibo
  • Anachuita
  • Timbó

Preferency essays in:

  • Nurseries
  • Plot planted in INTA EEA
slide-8
SLIDE 8

Preliminary results: repellency essays

16 repellency sites:

  • 10 with caseine
  • 6 with socks
slide-9
SLIDE 9

Preliminary results: repellency essays (3 months) Control Caseine % damage 92,7 52,7

T-test=1,91; g.d.l.=19; p-value=0,06 (two tailed)

Caseine’s essays

5 10 15 20 25 30 35 40 45 agronales nigra yaguarete lezama

Number of damaged branches

Varieties

Preferency (nurseries)

slide-10
SLIDE 10

Thank you!