Rainfall as an Abiotic Factor at Race Rocks

Rainfall  at Race Rocks. Recorded by a Davis Instruments tipping bucket rain gauge. These graphs are made possible by the website victoriaweather.ca

Hourly Rainfall today at Race Rocks

 

 

Rainfall for the past week at Race Rocks

 

 

Rainfall for the past month

Rainfall for 2020 at Race Rocks

 

 

Rainfall graph for 2019

Rainfall graph for 2018

Rainfall graph for 2017

 

ARCHIVES
2016 Rainfall for 2016
NOTE MISSING DATA in 2016 due to equipment failure
2015: Monthly Totals are shown. ( Includes data and graphs at this site.) 2014: Monthly Totals are shown. ( Includes data and graphs at this site.) 2013: Monthly Totals are shown. ( Includes data and graphs at this site.) 2012: Monthly Totals are shown. ( Includes data and graphs at this site.) 2011: Monthly Totals are shown. ( Includes data and graphs at this site.) 2010: Monthly Totals are shown. ( Includes data and graphs at this site.) 2009: Monthly Totals are shown. ( Includes data and graphs at this site.) Note : Jan to July.. equip failure. 2008: Monthly Totals are shown. ( Includes data and graphs at this site.) equipment failure gives blank records for several days 2007: Monthly Totals are shown. ( Includes data and graphs at this site.) Equip failure February March and part of April of 2007 2006: Monthly Rain Totals (includes data and graphs for part of 2006:  

Extreme values since 2006

 

 

 

The Adaptations and Response of Organisms to the Abiotic factor of Rainfall

Canada geese are dependant on the availability of fresh water at Race Rocks. During the winter, the higher level rock pools are refreshed by rainfall. There is no other natural source of water on the island. By the time their eggs hatch in June, most of the pools have dried up, so they have to take their young off the island and over to the mainland. They may make it past the eagles….(Photo by PB)

Juvenile bald eagles in very wet weather.( Photo by Pam Birley)
The availability of water for vegetation on Race Rocks has major implications for the species of plants which can survive on the island. Not only do they have to survive dessication from salt spray, but abundant water in the winter months and almost a total lack of water from June to September. One of the best grasses to tolerate these conditions is Fescue. Here you can see it growing on the natural rock outcrops on the island. 


Go to this exercise on the Water Cycle , along with other biogeochemical cycles.

Other references:  Google Climate change and Rainfall patterns

Global warming already changing rainfall... 

Wetland Conservation – Threatened by Climate Change


Rainbow West of Great Race Rocks from the remote camera 5. Image by Garry Fletcher,

Recent Posts

The first surfbirds

Wildlife notes

Six surfbirds visited east beach today. They are returning from their breeding grounds in Alaska and the Yukon, still dressed in their breeding plumage. They nest inland in the tundra and spend their winters very close to shore. Their non-breeding range is the narrowest and longest of any North American bird, spanning two continents, almost from tip to tip (see their range map).

Surfbirds on the east beach rocks.

The harbour seal and her pub continue to spend time on the rocks by the Energy Building.  The mother is incredibly attentive and aware of any unusual movements or sounds, just as alert as the oystercatchers.

And finally, the gull chicks. They are also incredibly cute and harmless but their parents are fierce.  The Sign gulls have moved their chicks off the rock and onto the walkway. I need to use the walkways here. Stepping off them is not always an option so there was much protest from all involved, except from the chicks which just freeze in the smallest crack or rock that will cast a shadow.

Sign gulls three chicks “hiding” at the edge of the walkway.

Facility work

  • cleaned solar panels
  • cleaned the Jetty camera
  • topped up battery fluids

Vessels

  • Ecotourism: 21
  • Private: 1

Weather

Moderate WNW breeze throughout the day, strong breeze in the evening. Skies scattered clouds, clear by evening. Daytime temperatures: low 11, high 15.

The Pedder Explorer with its loading ramp lowered, taking away the old fridge and other items.

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