Ecosystem Management and the Niche Gestalt of the Red-Cockaded Woodpecker in Longleaf Pine Forests

James, Frances C.; Hess, Charles A.; Kicklighter, Bart C.; Thum, Ryan A.

doi:10.2307/3061121

Cited by 23 publications

(50 citation statements)

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“…That is, some (higher quality) territories consistently produce more fledglings, and because a portion of fledglings remains as helpers, these territories tend to contain larger groups. Territory quality, as indicated by group size and/or productivity, has been related to the quality of foraging habitat (James et al 2001;Walters et al, in press) and the number of cavities (Davenport et al 2000). We used the number of active and possibly active cavities per territory per year as our first measure of territory quality.…”

Section: Methodsmentioning

confidence: 99%

Social and Environmental Factors Affect Natal Dispersal and Philopatry of Male Red-Cockaded Woodpeckers

Pasinelli¹,

Walters²

2002

Ecology

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Abstract. Natal dispersal behavior can vary considerably among individuals, but the causes of intraspecific plasticity in dispersal are poorly understood. We tested six hypotheses about social and environmental conditions that might influence natal dispersal of males in the cooperatively breeding Red-cockaded Woodpecker (Picoides borealis). Further, we examined whether variation in dispersal behavior is heritable. Dispersing from the natal territory during the first year rather than remaining as a helper was associated with four factors. First, dispersing male fledglings were, on average, significantly lower in body mass than their philopatric siblings, indicating an influence of social dominance on dispersal. Second, individuals were more likely to disperse from territories with many male fledglings, independent of the number of adult male helpers per territory, suggesting that sibling (rather than helper-offspring) competition for future reproduction may be the underlying mechanism. Third, the probability of remaining as a helper rather than dispersing was positively associated with quality of the natal territory and with the number of high-quality territories close to the natal site. This suggests an influence of the benefits of philopatry, because many males that initially remain as helpers eventually become breeders on the natal territory or a neighboring territory. Finally, we found evidence that ecological constraints influence dispersal: the probability of dispersing was positively related to the availability of vacant territories in the wider neighborhood of the natal site. Natal dispersal behavior was not influenced by resource competition, measured as group size on the natal territory, or by local density, estimated as the number of active territories in the vicinity of the natal site. Based on comparisons of father-son and brother-brother dispersal behavior, we found no evidence for heritability of philopatric behavior. Dispersal of male fledgling Red-cockaded Woodpeckers can be viewed as conditional on social and ecological factors in the natal territory and in the immediate neighborhood. These factors seem to serve as proximate cues that influence young birds to either disperse or remain as philopatric helpers.

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Section: Methodsmentioning

confidence: 99%

Social and Environmental Factors Affect Natal Dispersal and Philopatry of Male Red-Cockaded Woodpeckers

Pasinelli¹,

Walters²

2002

Ecology

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“…Demographic health is related, in part, to quality and quantity of foraging habitat. Researchers continue to improve the understanding of relationships between RCW group fitness (e.g., reproductive success, group size, adult survival) and habitat quality (Engstrom and Sanders, 1997;Hardesty et al, 1997;James et al, 1997;James et al, 2001; Determination of Impacts habitat selection. RCW fitness and habitat quality increase when foraging habitat is burned regularly, has an open character and herbaceous ground cover, and contains large old pines (DOI, 2005).…”

Section: • Avoidance and Minimization Measures Follow Best Managementmentioning

confidence: 99%

Test Area C-72 and Line of Sight, Eglin Air Force Base, Florida Final Range Environmental Assessment (REA), Revision 1

Beedles¹,

Boykin²,

Combs³

et al. 2011

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Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.

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“…We addressed two critical uncertainties. First, we were uncertain how differences in vegetative composition of territories affect reproductive success (James et al 2001;Walters et al 2002). Second, we were uncertain how land use patterns between RCW territories affect the probability of successful dispersal (J.…”

Section: Executive Summarymentioning

confidence: 99%

“…Previous researchers have attempted to relate group fitness to vegetative characteristics near cavity trees (James et al 2001;Convery 2002;Walters et al 2002). While these efforts have observed that the number of adults in a group is related to vegetative characteristics, statistically significant relationships with fitness were often not observed.…”

Section: Phase 3: Habitat-fitness Relationshipsmentioning

confidence: 99%

“…Adverse modification to habitat that results in death or injury is included in the take provision. However, non-federal landowners are not required to manage their lands for listed species, and loss of natural disturbance regimes (e.g., fire) is often enough to decrease the probability of habitat occupancy (James et al 2001). Under Section 10, non-federal landowners may take individuals or remove habitat if a Habitat Conservation Plan is implemented to offset the take elsewhere in the landscape (USFWS 1973).…”

Section: Habitat Tradingmentioning

confidence: 99%

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Trading Habitat Patches for the Red Cockaded Woodpecker: Incorporating the Role of Landscape Structure and Uncertainty in Decision Making

Bruggeman¹,

Jones²,

Wiegand³

2007

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The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to the Department of Defense, Executive Services and Communications Directorate (0704-0188). Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. Our SEED project derived a method to trade habitat that incorporates the role of landscape connectivity for population viability, and level of scientific uncertainty regarding landscape-scale processes. Our project focuses on the development and application of spatially-explicit population models (SEPMs) to inform habitat trading decisions. Military readiness will often require changing the spatial allocation of endangered species habitat prior to reaching a scientific consensus regarding the dispersal behaviors of listed species. Therefore, we used Pattern Oriented Modeling to reduce uncertainty in SEPMs regarding dispersal of red-cockaded woodpeckers (RCW) for Camp Lejeune. We used the subset of SEPMs capable of reproducing observed patterns to evaluate six alternative habitat trades. Landscape Equivalency Analysis was used to estimate if the patches traded make equivalent contributions to rates of population growth and migration at a regional scale. Decision analysis indicated that despite the remaining uncertainty in dispersal behaviors, a further reduction in uncertainty will likely not change the estimate of the most cost-effective trade. PLEASE DO NOT RETURN YOUR PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S) SPONSOR/MONITOR'S REPORT NUMBER(S)endangered species, tradable credit systems, Encroachment Partnering, spatially-explicit population models, red-cockaded woodpecker, uncertainty analysis, decision analysis, ecological services, genetic diversity, landscape ecology 68 Douglas James Bruggeman

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Ecosystem Management and the Niche Gestalt of the Red-Cockaded Woodpecker in Longleaf Pine Forests

Cited by 23 publications

References 0 publications

Social and Environmental Factors Affect Natal Dispersal and Philopatry of Male Red-Cockaded Woodpeckers

Social and Environmental Factors Affect Natal Dispersal and Philopatry of Male Red-Cockaded Woodpeckers

Test Area C-72 and Line of Sight, Eglin Air Force Base, Florida Final Range Environmental Assessment (REA), Revision 1

Trading Habitat Patches for the Red Cockaded Woodpecker: Incorporating the Role of Landscape Structure and Uncertainty in Decision Making

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