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

More signs of spring and a surprise visit!

Ecological Notes:

  • 3 female Elephant Seals, 1 adult and 2 juveniles, still coming and going, no full haul out
  • A surprise visit from a Northern Fur Seal!

  • In addition to the more regular Black Turnstones, noted some Ruddy Turnstones today

  • The Pigeon Guillemots are showing up in larger numbers, with many frequenting the rock pile where they like to nest
  • Not that long ago, we would say ” this is an all male haul out area” ….. sources tell me this is in fact, Male, females, and yearling pups(haven’t seen nursing yet today, although I’ve photographed a few here doing that too)

  • The Black Oyster Catchers are mostly paired up as well

  • It appears that 2 of the 3 pairs of Canada Geese have given up on egg laying for the season (the gulls have been raiding the nests), but the one pair by the crane shed still has 2 eggs they are taking care of.

Facility Work:

  • swapped out an electrical switch to restore light to the room I prefer to sleep in

  • Checked and topped up the battery electrolyte levels
  • Moved and stacked some of the split firewood
  • Done before I got here, but a straight forward “why didn’t I think of that” solution to the storm rattled doors on the water tank shed

Noted Vessel Traffic:

  • Some Eco-Tourism vessels visiting the reserve.
  • 1 private vessel noted

 Noted Infractions:

  • Private vessel approached the haul out area by the crane a bit too close and straight on, startling all the animals off into the water, including the rare (to this area) Northern Fur Seal

Weather Events:

  • Sunday April 06:
    • Sky:Overcast, low clouds on the Olympic Peninsula, rain showers started in the morning, more squalls as the wind rose later in the day
    • Wind: N 5-10 kts, shifting and rising to W 25 kts by early evening
    • Sea: rippled to 2′ chop
    • Temperature Low 8oC, High 13oC
  • Monday April 07:
    • Sky: Overcast with sunny breaks, low cloud over the Olympic Peninsula, light rain in the afternoon
    • Wind:mostly N 5-10 kts, switching to west and rising to 25 kts in the afternoon before dropping back down during the evening
    • Sea:  light chop
    • Temperature Low 9oC, High 10oC
  • Tuesday April 08:
    • Sky: Overcast with sunny breaks, heavy cloud to the south, occasional showers
    • Wind: N 5-15kts, rising to 25kts, gusting to 25kts, from the West late afternoon
    • Sea:  2 ft swells from the north during the day, switching to 2-3 ft chop late afternoon
    • Temperature Low 9oC, High 11oC
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