scholarly journals Does intraspecific variation in demography have implications for fire management of an obligate‐seeder shrub across its geographic range?

2020 ◽  
Vol 46 (2) ◽  
pp. 315-323
Author(s):  
John W. Morgan ◽  
Michael A. McCarthy ◽  
Emily Willocks

2020 ◽  
Vol 10 (9) ◽  
pp. 3895-3918 ◽  
Author(s):  
Kathy Darragh ◽  
Gabriela Montejo‐Kovacevich ◽  
Krzysztof M. Kozak ◽  
Colin R. Morrison ◽  
Clarisse M. E. Figueiredo ◽  
...  


The Auk ◽  
1985 ◽  
Vol 102 (3) ◽  
pp. 556-579 ◽  
Author(s):  
Gary R. Graves

Abstract Intraspecific variation in plumage was used to test the null hypotheses that geographic variation in 280 species of elevationally restricted Andean forest birds is independent of elevation and is not a function of patchy geographic distribution. Both null hypotheses were rejected. At most taxonomic levels, geographic variation in plumage was correlated positively with both the mean of its elevational distribution and the size of its geographic range. Vertical amplitude of elevational distribution was not a significant predictor of geographic variation in plumage in most taxa. Independent of these elevational correlates, patchily distributed species showed significantly more geographic variation than continuously distributed species. These results show that geographic variation and presumably ongoing speciation phenomena are greater at higher elevations. The decreased species richness at high elevations may be attributable to a higher rate of extinction from catastrophic disturbance as well as to ecological factors that limit sympatry in newly formed species.



1986 ◽  
Vol 16 (1) ◽  
pp. 149-151 ◽  
Author(s):  
D. F. W. Pollard ◽  
F. T. Portlock

Fifteen coastal provenances of western hemlock Tsugaheterophylla (Raf.) Sarg. were tested on four sites on Vancouver Island, B.C. Provenance origins and test sites lay within roughly 2° of latitude and at 0–580 m above mean sea level. Mean heights of provenances 10 years after planting varied from roughly 74 to 121% of the plantation mean at each site; plantation means varied from 388 to 493 cm. No interaction between provenance and test site was detected and rankings of provenances remained quite constant from site to site. A large proportion of provenance variation could not be accounted for by descriptors of provenance origin. Results show that for the geographic range tested, faster growing provenances could be planted without constraints imposed by elevation and latitude.



Ecography ◽  
2000 ◽  
Vol 23 (5) ◽  
pp. 539-546 ◽  
Author(s):  
M. Kiflawi ◽  
B. J. Enquist ◽  
M. A. Jordan


2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Musa Musa

This research was conducted to determine the Effectiveness of Jakarta Siaga 112 Emergency Services in Fire Management by UPT. Disaster Data & Information Center of BPBD DKI Jakarta Province by paying attention to aspects contained in the Effectiveness of the Jakarta Siaga Emergency Service Program 112. The research method was carried out with a case study method with data collection techniques using interview methods and document review. Interviews were conducted on 10 (ten) key informants, document review focused on documents related to the Jakarta Emergency Alert Service 112 Effectiveness research in Fire Management. The results showed that the Effectiveness of Jakarta Siaga 112 Emergency Services in Fire Management by UPT. The Center for Disaster Data & Information BPBD DKI Jakarta Province Its effectiveness is still low, due to the Implementation of Emergency Services Jakarta Standby 112 in Fire Management implemented by UPT. Disaster Data & Information Center of BPBD DKI Jakarta Province in terms of the Target Group Understanding of the Program, the Achievement of the Program Objectives aspects, and the Program Follow-up aspects. It is recommended to continue to disseminate this Emergency Service to the public, it is necessary to increase the firm commitment of the Head of 8 SKPD related to fire management so that all units play a role in accordance with the Standard Operating Procedures (SOPs) for Fire Management and the evaluation and follow-up of program services that are held periodically 3 once a month.Keywords: Effectiveness, Emergency Services, Fire Handling









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