Presentation is loading. Please wait.

Presentation is loading. Please wait.

Habitat Management What is wildlife habitat management?

Similar presentations


Presentation on theme: "Habitat Management What is wildlife habitat management?"— Presentation transcript:

1 Habitat Management What is wildlife habitat management?
What is succession? How do wildlife habitat requirements & succession relate?

2 Habitat Management Habitat management & restoration, what’s the difference? How do landscape factors affect habitat management? What effects do exotic species & climate change have on habitat management?

3 Habitat Management What is Wildlife Habitat Management?
The deliberate act of manipulating wildlife habitat for the benefit of wildlife and people. (Yarrow & Yarrow 1999) Credit:stpaulcareers.umn.edu

4 Habitat Management What is Wildlife Habitat Management?
The manipulation of the successional stage and physical structure of vegetation to benefit particular species, or assemblages of species, considered to be of high conservation priority, or other intrinsic value. (Ausden 2007)

5 Habitat Management What is Wildlife Habitat Management?
Habitat management also includes: Manipulations to increase prey Provision of nest sites Control of unwanted plants Minimizing effects of damage by humans Herbivore control Other artificial improvements Conditions & the physical environment Credit: naturalsciences.org (Ausden 2007)

6 Habitat Management Wildlife Habitat Management
Succession Process by which assemblages of plants and animals change over time in the absence of disturbance (Ausden 2007)

7 Habitat Management Succession Predictions possible
Progressive development/change of a biotic community Replacement of species Modification of the physical environment Advances through a series of seres Terminates in a climax community Predictions possible

8 Habitat Management Succession Types of succession Primary Secondary
Credit: discovermagazine.com Credit: forestryimages.com

9 Habitat Management Succession (City University of New York, 2008)

10 Habitat Management Succession Occurs in terrestrial & aquatic systems
Xerarch - on land; towards a wetter state Hydrarch – in aquatic habitats; towards a drier state Oligotrophic & eutrophic Credit: fed.fs.us Credit: erie-county-ohio.net

11 Habitat Management Succession Retrogression Acceleration
Opposite of succession Replacement towards earlier conditions Acceleration

12 Habitat Management Succession
Factors affecting succession & seral stages Current vegetation Surrounding vegetation Past vegetation Resource levels Conditions Disturbance levels Stochastic factors

13 Habitat Management Rate & Direction of Succession Vegetation & soil*
Removal & disturbance Herbivores (and Omnivores) Credit: wildlifemanagementpro.com

14 Habitat Management Rate & Direction of Succession
Vegetation removal & disturbance Physical disturbance events Periodic large scale herbivory by insects Outbreaks of disease in plants Habitat management can mimic natural processes

15 Habitat Management Succession Mimicking natural processes
Prescribed burning Grazing Application of chemicals Mechanical treatments Credit: forestryimages.org Credit: eih.uh.edu Credit: E. Willcox Credit: E. Willcox

16 Habitat Management Succession
Wildlife habitat requirements & succession (Yarrow & Yarrow 1999)

17 Habitat Management Prescription
Succession Classifying wildlife based on habitat requirements & succession Class Examples Habitat Management Prescription I: Climax-adapted species Spruce grouse Snowshoe hare Pileated woodpecker Protection II: Species adapted to developmental stages of succession Bobwhite quail Cottontail rabbit Grasshopper sparrow Disturbance: logging, fire, mechanical treatments etc. III: Species requiring a mixture of successional stages Ruffed grouse White-tailed deer Mule deer Protect or disturb to increase limiting habitat type (Adapted from Bailey 1984)

18 Habitat Management Succession Class I: Climax-adapted wildlife species
More specialized in habitat requirements Less adaptable to habitat change Many rare and endangered Hindered or extirpated by disturbance Habitat management emphasizes protection

19 Habitat Management Succession
Class II: Species of developmental stages Require temporary vegetation More generalized in habitat requirements Adaptable to habitat change Credit: audubon.org Credit: claycountyquail.com Credit: uoguelph.ca

20 Habitat Management Succession
Class III: Species using a mix of successional stages Most species in this class Require habitat disturbance & protection Credit: forestryimages.org Credit: forestryimages.org

21 Habitat Management Wildlife Habitat Management
Habitat Management v. Restoration

22 Habitat Management Other habitat management considerations
Landscape factors (space & scale) Area of habitat Fragmentation Edge effects Surrounding habitats

23 Habitat Area Needed to Reach 50% Incidence (Ha)
Habitat Management Landscape Factors Area of habitat Area sensitivity Minimum requirements Cost to manage Species Habitat Area Needed to Reach 50% Incidence (Ha) Upland Sandpiper 200 Grasshopper Sparrow 100 Savannah Sparrow 10 (Vickery et al. 1994)

24 Habitat Management Landscape Factors Fragmentation
The disruption of extensive habitats into isolated and small patches (Meffe et al. 1994) Credit: uwrf.edu Credit: fs.fed.us

25 Habitat Management Landscape Factors Fragmentation types
Perforation - making holes in a habitat Dissection - sub-dividing with lines Fragmentation - breaking up into smaller parts

26 Habitat Management Landscape Factors Fragmentation type cont.
Shrinkage - decrease of size of patches Attrition - loss of existing patches (apc.tamu.edu 2008)

27 Interior to edge ratios
Habitat Management Landscape Factors Fragmentation Spatial effects Increase Decrease Patch density Connectivity Inter-patch distance Interior to edge ratios Boundary length Core size Total interior area

28 Habitat Management Landscape Factors Fragmentation Species effects
Increase Decrease Isolation Dispersal of interior specialists No. of generalists Large home range species No. of multi-habitat species Richness of interior species Exotics Nest predation

29 Habitat Management Landscape Features Fragmentation Metapopulations
Importance of connectivity Ability of species to disperse Use of habitat corridors Metapopulations

30 Habitat Management Landscape Factors Edge effects
Occur at margins of habitat patches Invasion of exotics Disease spread Increased predation Increased parasitism Change in water levels & humidity (conditions) Pesticide drift & fertilizer runoff

31 Habitat Management Landscape Factors Surrounding habitat
Interchange of individuals Predation & parasitism Proximity of other suitable habitats Credit: mo.gov Credit: forestryimages.org Credit: fws.org

32 Habitat Management Other considerations Exotic species Climate change

33 Habitat Management Exotic Species (plants & animals)
Compete with native vegetation & wildlife Reduce habitat quality Benefits & costs of control Spread Replacement Re-colonization

34 Habitat Management Climate Change Effects on wildlife
Changes in climatic conditions at sites Alterations to habitat requirements Changes in the timing of biological events Effects of adverse weather during migration Loss of coastal habitats due to sea-level rise

35 Habitat Management Climate Change Mitigation & compensation

36 Habitat Management Climate Change Mitigation & Compensation
Facilitate wildlife spread to future climate envelopes Linking habitats Translocation Changes in management practices Credit: ia.nrcs.usda.gov

37 Habitat Management Habitat Management Management of succession & other
Meet wildlife habitat requirements Compared to restoration Effects of landscape factors Effects of exotic species & climate change

38 Philosophy For what degree of naturalness should we manage habitat?
Habitat management approaches To what extent should habitat management be integrated with other interests and values? What consideration should be given to the cost of habitat management?

39 Philosophy What Degree of Naturalness? What is possible?
Increasing Human Influence Original Natural State Absolutely Artificial State Cultural Habitats

40 Philosophy “We might, if we chose to spend the money, release each year millions of artificially reared birds, and thus “maintain” a supply of game in the quantitative sense. But would we thus maintain value? I think not.” Aldo Leopold

41 Philosophy “How shall we conserve wild life
without evicting ourselves” Aldo Leopold

42 Philosophy What Degree of Naturalness? Depends on goals
Effects on species present Increases Decreases Colonization's Extirpations Credit: briansmallphoto.com

43 Philosophy Habitat Management Approaches
Featured (single) species management Multiple species management Biodiversity management Ecosystem management Intervention & naturalness

44 Philosophy Habitat Management Approaches
Featured (single) species management Credit: wordpress.com Credit: ebird.com Credit: action.earthpress.com

45 Philosophy Habitat Management Approaches Multiple species management

46 Greater level of intervention
Philosophy Featured & multiple species management Level of Intervention & naturalness E.g., Increasing food supply for wintering waterfowl Artificially manipulate water levels Sow favored foods within wetlands Plant food plots on adjacent arable lands Feed with grain Greater level of intervention

47 Philosophy Habitat Management Approaches Biodiversity management
Level of Intervention & naturalness Same as Ecosystem Management?

48 Philosophy Habitat Management Approaches Ecosystem management
Level of Intervention & naturalness Preservation E.g., Sandhill

49 Philosophy Habitat Management Approaches Ecosystem management
Resource management systems designed to produce essential commodities and other values to meet human needs and desires, and to maintain and enhance soil productivity, gene conservation, biodiversity, landscape patterns, and the array of ecological processes common to healthy ecosystems (UF SFRC 2009)

50 Philosophy Habitat Management Approaches Ecosystem management
Any land-management system that seeks to protect viable populations of all native species, perpetuate natural disturbance regimes on the regional scale, adopt a planning timeline of centuries, and allow human use at levels that do not result in long-term ecological degradation (MSU 2009)

51 Philosophy Habitat Management Approaches Ecosystem management
Integrates scientific knowledge of ecological relationships within a complex sociopolitical and values framework toward the general goal of protecting native ecosystem integrity over the long term (Grumbine 1994)

52 Philosophy Habitat Management Approaches Ecosystem management
Maintain viable populations of native species Represent all native ecosystem types Maintain evolutionary & ecological processes* Maintain evolutionary potential Accommodate human use*

53 Philosophy Habitat Management Approaches Ecosystem management
Ecological integrity Restore or maintain key natural processes Encourage keystone species - Human dimensions issues Credit: animals.nationalgeographic.com Credit: maxwaugh.com Credit: fs.fed.us Credit: animals.nationalgeographic.com

54 Philosophy Habitat Management Approaches Ecosystem management
Ecological Integrity Restore or maintain key natural processes Disturbances (e.g., fire, herbivory, disease, etc.) - Natural vs. artificial (mimic) - Human dimensions issues Level of control over grazing regimes - Discrete periods - Naturalistic - Rewilded Credit: travelblog.com Credit:dreamsofafricsafaris.co.ke

55 Philosophy Habitat Management Approaches Ecosystem management
Ecological integrity Restore or maintain key natural processes Systems dissimilar to natural state – is it possbile? - Land-use history & change Credit: dnrc.mt.gov Credit: tour.com.au

56 Philosophy Integrating Habitat Management with Other Interests
Recreation Education & research Landscape & aesthetic considerations Cultural history Resource use Wider environmental benefits

57 Philosophy Cost of Management
Level of intervention & degree of naturalness

58 Philosophy Habitat Management Degree of naturalness
Habitat management approaches Extent of integration Consideration of cost


Download ppt "Habitat Management What is wildlife habitat management?"

Similar presentations


Ads by Google