Conservation Reserve Program: Source or Sink Habitat for Grassland Birds in Missouri?

McCoy, Timothy; Ryan, Mark R.; Kurzejeski, Eric W.; Burger, L. Wes

doi:10.2307/3802639

Cited by 114 publications

(84 citation statements)

References 19 publications

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“…This work suggested that for smaller grassland songbirds, the large core area of the BCA was not necessary, as reproductive success on the smaller grassland patches was not consistently different from that on larger patches (Winter et al 2006). This is not surprising, as other studies of grassland birds had suggested that these species responded positively to small tracts of habitat, requiring smaller areas of acceptable habitat within their landscape than forest birds might (McCoy et al 1999, Herkert et al 2003. Unfortunately, the validity of the BCA concept for species as large as prairie-chickens or Northern Harrier (Circus cyaneus) has not been tested; we not only lack a good idea of how large a landscape is needed to support smaller migratory grassland birds, but we also do not know if the BCA concept would work to save prairie grouse populations, many of which are declining.…”

Section: Is Our Science Sufficient To Guide Conservation Efforts For mentioning

confidence: 83%

Conserving migratory land birds in the New World: Do we know enough?

Faaborg

Holmes

Anders³

et al. 2010

Ecological Applications

326

281

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Abstract. Migratory bird needs must be met during four phases of the year: breeding season, fall migration, wintering, and spring migration; thus, management may be needed during all four phases. The bulk of research and management has focused on the breeding season, although several issues remain unsettled, including the spatial extent of habitat influences on fitness and the importance of habitat on the breeding grounds used after breeding. Although detailed investigations have shed light on the ecology and population dynamics of a few avian species, knowledge is sketchy for most species. Replication of comprehensive studies is needed for multiple species across a range of areas.Information deficiencies are even greater during the wintering season, when birds require sites that provide security and food resources needed for survival and developing nutrient reserves for spring migration and, possibly, reproduction. Research is needed on many species simply to identify geographic distributions, wintering sites, habitat use, and basic ecology. Studies are complicated, however, by the mobility of birds and by sexual segregation during winter. Stable-isotope methodology has offered an opportunity to identify linkages between breeding and wintering sites, which facilitates understanding the complete annual cycle of birds.The twice-annual migrations are the poorest-understood events in a bird's life. Migration has always been a risky undertaking, with such anthropogenic features as tall buildings, towers, and wind generators adding to the risk. Species such as woodland specialists migrating through eastern North America have numerous options for pausing during migration to replenish nutrients, but some species depend on limited stopover locations. Research needs for migration include identifying pathways and timetables of migration, quality and distribution of habitats, threats posed by towers and other tall structures, and any bottlenecks for migration. Issues such as human population growth, acid deposition, climate change, and exotic diseases are global concerns with uncertain consequences to migratory birds and even lesscertain remedies. Despite enormous gaps in our understanding of these birds, research, much of it occurring in the past 30 years, has provided sufficient information to make intelligent conservation efforts but needs to expand to handle future challenges.

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Section: Is Our Science Sufficient To Guide Conservation Efforts For mentioning

confidence: 83%

Conserving migratory land birds in the New World: Do we know enough?

Faaborg

Holmes

Anders³

et al. 2010

Ecological Applications

326

281

View full text Add to dashboard Cite

show abstract

“…In New York, Field Sparrows avoided fields mowed annually and nested in oldfields 2-16 yr following the cessation of cultivation; after that time the fields were no longer attractive, probably due to lack of suitable nesting cover such as weeds and saplings (Lanyon 1981). McCoy et al (1999) reported that fecundity of Field Sparrows over 3 yr in Missouri CRP fields was high enough to maintain a stable population.…”

Section: Brown-headed Cowbird Brood Parasitismmentioning

confidence: 99%

Effects of management practices on grassland birds: Field Sparrow

Dechant¹,

Sondreal²,

Johnson³

et al. 1999

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“…Approximately 31.4 million acres are currently enrolled under CRP (Farm Service Agency 2000). Several studies have suggested that CRP lands may function as reserves of breeding habitat for grassland songbirds (Herkert 1997a, Johnson and Igl 1995, Johnson and Schwartz 1995, McCoy et al 1999. Conservation Reserve Program land may provide potential habitat for Henslow' s Sparrows.…”

Section: Inadequacy Of Existing Regulatory Mechanismsmentioning

confidence: 99%

“…Swengel studied management responses of sparrows in the same region (Swengel 1996). McCoy studied use of Conservation Reserve Program (CRP) lands in northern Missouri (McCoy 2000, McCoy et al 1999.…”

Section: Research/monitoringmentioning

confidence: 99%

Conservation assessment: Henslow's Sparrow Ammodramus henslowii

Burhans¹

2002

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Conservation Reserve Program: Source or Sink Habitat for Grassland Birds in Missouri?

Cited by 114 publications

References 19 publications

Conserving migratory land birds in the New World: Do we know enough?

Conserving migratory land birds in the New World: Do we know enough?

Effects of management practices on grassland birds: Field Sparrow

Conservation assessment: Henslow's Sparrow Ammodramus henslowii

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