HOME >> BIOLOGY >> NEWS
Spatial structure, dispersal, and management of a recovering raptor population

Most wild species experience considerable variation in habitat quality. Ecological theory that considers how organisms disperse between good and bad habitats has shown that such spatial structure can strongly influence population dynamics, but real-world implications have rarely been found. In this study, researchers from the University of California Santa Cruz show that the spatial structure of Peregrine Falcons in California has profoundly influenced the management and recovery of this species.

California peregrines suffered a dramatic population crash in the 1950s due to DDT-induced eggshell thinning, and this regional population has been highly managed by the introduction of over 800 young birds. Observations of banded birds showed that dispersal rates between three subpopulations--interior, coastal, and urban--were asymmetric, with essentially no dispersal out of the interior subpopulation and a strong tendency for coastal peregrines to disperse to the urban habitats. By fitting regional population models to the observed recovery of breeding pairs in each habitat, this study also characterized the demographic performance of peregrines within each subpopulation.

The spatial structure revealed by this study suggests that the highly productive interior subpopulation would have recovered largely on its own, without the reintroduced birds, while the coastal subpopulation would have been very slow to recover without the reintroduction effort. This study makes clear that understanding spatial structure can be critical for the effective conservation and management of animal populations.


'"/>

Contact: Tricia Morse
amnat@press.uchicago.edu
773-702-0446
University of Chicago Press Journals
9-Nov-2004


Page: 1

Related biology news :

1. New data reveal pregnancies exposed to accutane despite risk management program
2. Madagascan tropical forests return thanks to better management and well-defined ownership
3. Better risk management could cut MRSA infection rates
4. Study projects effects of forest management in Oregons Coast Range
5. PNNL becomes DOE flagship for incentive-based waste management practices
6. Plants management of nutrient suggests environmental remedies
7. Science for long-term management of the Marine Life Protection Act
8. Ten Commandments could improve fisheries management
9. Emerging research heralds new era of breast cancer management
10. New maps emphasize the human factor in wildfire management
11. Arctic nations wealth key to management of climate change

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/5/2017)... NEW YORK , April 5, 2017 ... security, is announcing that the server component of the ... is known for providing the end-to-end security architecture that ... customers. HYPR has already secured over 15 ... system makers including manufacturers of connected home product suites ...
(Date:3/30/2017)... 2017  On April 6-7, 2017, Sequencing.com will host ... hackathon at Microsoft,s headquarters in Redmond, ... on developing health and wellness apps that provide a ... Genome is the first hackathon for personal genomics ... companies in the genomics, tech and health industries are ...
(Date:3/28/2017)... 2017 The report "Video Surveillance ... Servers, Storage Devices), Software (Video Analytics, VMS), and Service ... Forecast to 2022", published by MarketsandMarkets, the market was ... projected to reach USD 75.64 Billion by 2022, at ... base year considered for the study is 2016 and ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... BioMedGPS ... the addition of its newest module, US Hemostats & Sealants. , SmartTRAK’s US ... absorbable hemostats, fibrin sealants, synthetic sealants and biologic sealants used in surgical applications. ...
(Date:10/11/2017)... ... October 11, 2017 , ... The CRISPR-Cas9 system ... experiments and avoiding the use of exogenous expression plasmids. The simplicity of programming ... systematic gain-of-function studies. , This complement to loss-of-function studies, such as with ...
(Date:10/11/2017)... 2017  VMS BioMarketing, a leading provider of patient support ... Nurse Educator (CNE) network, which will launch this week. The ... health care professionals to enhance the patient care experience by ... other health care professionals to help women who have been ... ...
(Date:10/11/2017)... ... 11, 2017 , ... Singh Biotechnology today announced that the ... its novel anti-STAT3 (Signal Transducer and Activator of Transcription 3) B VHH13 single ... the cell membrane and bind intracellular STAT3 and inhibit its function. Dysregulation of ...
Breaking Biology Technology:
Cached News: